WO2022110060A1 - 变速箱、汽车动力总成及汽车 - Google Patents
变速箱、汽车动力总成及汽车 Download PDFInfo
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- WO2022110060A1 WO2022110060A1 PCT/CN2020/132435 CN2020132435W WO2022110060A1 WO 2022110060 A1 WO2022110060 A1 WO 2022110060A1 CN 2020132435 W CN2020132435 W CN 2020132435W WO 2022110060 A1 WO2022110060 A1 WO 2022110060A1
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- Prior art keywords
- oil
- gear
- lubricating oil
- lubricating
- fuel injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0452—Oil pans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
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- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F16H57/00—General details of gearing
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- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
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- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
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- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
- F16H57/0441—Arrangements of pumps
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- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0447—Control of lubricant levels, e.g. lubricant level control dependent on temperature
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- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/10—Housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
Definitions
- the present application relates to the field of electric vehicles, and in particular, to a gearbox, an automotive powertrain equipped with the gearbox, and an automobile.
- the automotive powertrain of an electric vehicle consists of a motor and a gearbox.
- the motor As a power source, the motor has a high speed and needs to be matched with a gearbox with a certain reduction ratio to transmit the power of the motor to the wheel end.
- the motor When the powertrain of the car is working, the motor will generate a lot of heat.
- the bearings and gears in the gearbox have high speeds and large loads, and the surfaces of the bearings and gears generate a lot of heat due to friction.
- the engineering design will introduce cooling and lubrication design inside the motor and gearbox to ensure that the components are in the appropriate operating temperature range.
- automotive powertrains are evolving in the direction of miniaturization and high power.
- the maximum speed and load of automotive powertrains are constantly increasing to achieve higher power density and total power.
- the increase in speed and load significantly increases the calorific value of the motor and gearbox, ensuring efficient cooling and lubrication of the motor and gearbox has become a bottleneck restricting assembly miniaturization.
- the purpose of the present application is to provide a lubricated and reliable gearbox to adapt to the working conditions of the gearbox at different speeds.
- the present application also provides an automobile powertrain including the transmission, and an automobile, all of which are configured based on the characteristics of the transmission to obtain better lubricating and cooling effects.
- the present application relates to a gearbox, comprising a box with an inner cavity, a gear set and an oil feeder accommodated in the box; an oil storage tank for carrying lubricating oil is arranged at the bottom of the inner cavity; the oil feeder is fixed On the side of the gear set facing away from the oil storage tank, the oil feeder includes a fixedly connected sealing bin and an oil collecting trough, and the oil collecting trough is located above the sealing bin; the sealing bin is provided with an oil inlet and at least one fuel injection pipe, and at least one fuel injection pipe Extend in different directions; the sealing chamber is used to receive the lubricating oil in the oil storage tank sent from the oil inlet, and spray the lubricating oil toward at least one part to be lubricated of the gear set through at least one oil injection pipe; the oil collecting tank has an upper part.
- the oil collecting tank is used to receive the lubricating oil in the oil storage tank stirred by the gear group through the upper opening when the gear group rotates.
- any oil channel is set corresponding to one of the oil injection pipes, and is used to lubricate the same part to be lubricated with the corresponding oil injection pipe.
- the gearbox of the present application accommodates the gear set and the oil feeder through the inner cavity of the box, and at the same time, the gearbox of the present application forms an oil storage pool through the inner cavity of the box, thereby realizing the rotation deceleration function of the gearbox.
- the oil is fed into the oil feeder to lubricate the preset parts to be lubricated in the gear set. Because the oil feeder is fixed on the side of the gear set away from the oil storage tank, that is, the oil feeder is fixed above the gear set in the vertical direction, the lubricating oil delivered by the oil feeder from the oil tank and/or the fuel injection pipe can be transported by gravity The action flows to the part of the gear set to be lubricated.
- the oil feeder allows the lubricating oil to flow into the sealing chamber through the oil inlet, and causes the lubricating oil in the sealing chamber to flow out through the fuel injection pipe, so as to act on the parts to be lubricated in the gear set.
- the sealing chamber can provide a certain pressure of the lubricating oil to ensure that the oil injection pipe sprays the lubricating oil towards the part to be lubricated at a certain speed, so as to realize the active lubrication of the part to be lubricated.
- the lubricating oil that is stirred and fed by the gear is collected through the upper opening of the oil collecting tank located above the sealing chamber, and flows out from the oil conveying tank and acts on the parts to be lubricated in the gear group, so as to realize the lubricating oil to be lubricated. Passive lubrication of parts.
- the oil injection pipe extending from the sealing chamber corresponds to the extension path of the oil conveying groove extending from the oil collecting groove, so that both the oil injection pipe and the oil conveying groove can extend toward the part to be lubricated , and respectively realize active lubrication and passive lubrication of the part to be lubricated.
- the oil feeder of the present application realizes the active and passive lubrication of each part to be lubricated in the gear set at the same time, and through the matching setting of the oil conveying groove and the fuel injection pipe, the oil feeder can adjust the oil conveying groove correspondingly according to the different positions of the parts to be lubricated.
- the extension path of the oil injection pipe and the oil injection pipe respectively relative to the oil collecting tank and the sealing chamber, so as to match the position of the part to be lubricated and achieve the lubrication effect.
- the position and quantity of the parts to be lubricated in the gear set can be adjusted arbitrarily according to the needs of the actual engineering structure, and will not affect the lubrication effect of the oil feeder, thereby ensuring the normal operation of the gear set and improving the reliability of the gearbox.
- the gear set includes a first gear and a second gear that mesh with each other, and the first gear and the second gear are respectively rotatably connected to the casing; the bottom of the first gear is located in the oil storage tank and is immersed in lubrication.
- the first gear rotates from bottom to top on the side away from the second gear, and is spaced from the inner wall of the box to form an oil churning channel.
- the first gear rotates, it can drive the lubricating oil in the oil storage tank to pass through the oil churning channel. into the oil sump.
- the first gear is immersed in the lubricating oil carried by the oil storage tank, and passes through the oil churning channel formed by the inner wall and the first gear, so that the first gear can send the lubricating oil through the oil churning channel when rotating. into the oil collecting tank of the oil feeder to realize the passive lubrication function of each part to be lubricated in the gear set.
- the oil feeder is arranged on the side of the first gear close to the second gear
- the inner wall of the box includes a first side wall and a top wall
- the first side wall is located on the side of the first gear away from the second gear.
- the top wall is located on the first side wall, and the first side wall and the top wall together form an oil churning channel with the first gear.
- the side of the first gear facing away from the second gear rotates from bottom to top
- the side of the first gear close to the second gear rotates from top to bottom.
- the top wall includes a first end face close to the first side wall, and a second end face opposite to the first end face, the second end face is located below the first end face in the vertical direction, so as to guide the lubricating oil in the oil churning channel to flow into in the oil sump.
- a part of the top wall close to the first side wall needs to be spaced from the top of the first gear, and a part of the top wall far from the first side wall can be located below the first end face in the vertical direction, thereby forming
- the inclined surface of the first gear towards the oil collecting groove can guide more lubricating oil to fall into the oil collecting groove.
- the distance between the liquid level of the lubricating oil in the oil storage tank and the center of rotation of the first gear is less than or equal to the radius of the root circle of the first gear.
- defining the liquid level of the lubricating oil in the oil storage tank can ensure the depth of the first gear immersed in the lubricating oil, thereby ensuring that the first gear can stir enough oil into the oil collecting tank.
- the gearbox further includes an oil delivery assembly, and the oil delivery assembly includes an oil delivery pipeline and an oil delivery pump. It is used to pump the lubricating oil in the oil storage tank into the sealing chamber through the oil pipeline.
- the lubricating oil in the oil storage tank is transported to the sealing chamber through the communication between the oil delivery assembly and the sealing chamber, so as to realize the active lubrication function of each part to be lubricated in the gear set.
- the first gear and the second gear mesh with each other at the first meshing position, and at least one part to be lubricated includes the first meshing position.
- the first gear and the second gear mesh with each other at the first meshing position, and providing lubrication to the first meshing position can reduce the friction between the surfaces of the first gear and the second gear and prolong the service life of the gear set.
- the gearbox further includes a third gear and a fourth gear, and the third gear and the fourth gear mesh with each other at the second meshing position, and at least one of the parts to be lubricated further includes a second meshing position.
- the gear set may further include more gears, and more gears are meshed with each other for transmission.
- the oil feeder can also lubricate the remaining meshing positions to reduce the friction loss of the gear set.
- the gear set further includes a first gear shaft, a second gear shaft, a first bearing and a second bearing, the first gear shaft is fixedly connected to the first gear, and the second gear shaft is fixed to the second gear
- the first bearing is used to realize the rotational connection between the first gear shaft and the case body
- the second bearing is used to realize the rotational connection between the second gear shaft and the case body
- the parts to be lubricated also include the position of the first bearing and the second bearing. s position.
- the rotational connection of the first gear relative to the casing can be realized.
- Lubrication at the first bearing can slow down the internal friction of the first bearing and prolong the service life of the first bearing; through the cooperation of the second gear shaft and the second bearing, the rotational connection of the second gear relative to the casing can be realized.
- Lubrication at the second bearing can also reduce the internal friction of the second bearing and prolong the service life of the second bearing.
- the gear set further includes a third gear shaft and a third bearing
- the third gear shaft is fixedly connected with the third gear, and is used to realize the rotational connection between the third gear shaft and the casing, and the parts to be lubricated are also Including the location of the third bearing.
- the gear set may further include a third bearing
- the oil feeder may also lubricate the third bearing, so as to reduce the internal friction of the third bearing and prolong the service life of the third bearing.
- At least one fuel injection pipe includes a lateral fuel injection pipe, and the lateral fuel injection pipe extends in a horizontal direction and in a direction away from the sealing chamber; at least one fuel delivery groove includes a lateral fuel delivery groove, and the side plate A notch is provided to communicate with the lateral oil conveying groove, and the extending direction of the lateral oil conveying groove is the same as that of the corresponding lateral fuel injection pipe, and is located above the corresponding lateral fuel injection pipe.
- a lateral fuel injection pipe that communicates with the sealing chamber
- a lateral oil delivery groove that communicates with the oil collecting groove through the gap.
- the oil delivery groove is located above the side fuel injection pipe, and the two can extend in parallel to the part to be lubricated of the gear set, so as to realize the effect of active lubrication and passive lubrication of the part to be lubricated respectively.
- the lateral oil conveying groove includes a groove bottom and two groove walls, the groove bottom is parallel to the side fuel injection pipe, the two groove walls are oppositely arranged on both sides of the groove bottom, and the groove bottom includes a first end close to the notch. , and a second end away from the notch, the second end is located vertically below the first end, or is flush with the first end.
- the flow of the lubricating oil toward the part to be lubricated is guided by the groove bottom and the groove wall of the lateral oil conveying groove, so as to realize the passive lubricating effect of the part to be lubricated.
- the setting of the second end being flush or lower than the first end can ensure that the lubricating oil flows smoothly to the part to be lubricated under the action of gravity.
- the side fuel injection pipe on the path where the side fuel injection pipe extends in parallel with the side fuel delivery groove, the side fuel injection pipe has an extension that exceeds the extension length of the side fuel delivery groove, and the top of the extended segment is provided with an open end.
- the lubricating oil conveyed to the side oil channel also flows into the extension section through the opening, and acts on the part to be lubricated along the extension section.
- the lateral fuel injection pipe partially protrudes from the lateral fuel delivery groove along the extension path, and receives the lubricating oil in the lateral fuel delivery groove through the open opening at the top of the extended extension, and the part of the lubricating oil acts through the extended segment to the position to be lubricated.
- This embodiment utilizes the feature of parallel arrangement of the side oil delivery groove and the side fuel injection pipe, which simplifies the structure of the side oil delivery groove, and can guide the lubricating oil only through the side fuel injection pipe.
- the plurality of first ends are arranged flush in the horizontal direction.
- the first end of the bottom of the multi-way lateral oil conveying groove is arranged to be flush in the horizontal direction, which can ensure that the lubricating oil in the oil collecting groove flows evenly
- Each side oil conveying groove ensures the lubricating effect of the parts to be lubricated by each side oil conveying groove.
- At least one fuel injection pipe includes a vertical fuel injection pipe, and the vertical fuel injection pipe extends in a direction away from the sealing chamber along a vertical direction;
- the oil tank is fixedly connected with the bottom plate of the oil collecting tank, and is configured as a through groove running through the sealing chamber. side.
- some of the parts to be lubricated in the gear set may also be located below the oil feeder, and a vertical oil injection pipe connected to the sealing chamber and a vertical oil transmission groove connected to the oil collecting tank are provided, and vertical oil injection pipes are provided.
- the oil delivery groove is configured as a through groove running through the sealing chamber, that is, the effect of lubricating the part to be lubricated under the oil feeder is achieved.
- the vertical oil delivery groove is located on one side of the vertical fuel injection pipe, and the two extend parallel to the lower part to be lubricated.
- the vertical fuel injection pipe is configured as an opening opened at the bottom of the sealing chamber.
- the vertical fuel injection pipe is configured as an opening at the bottom of the sealing chamber, and the sealing chamber can directly face the part to be lubricated by gravity at the opening Deliver lubricating oil.
- the number of at least one oil tank is multiple, and at least one oil guide plate is also provided on the bottom plate, and at least one oil guide plate divides the internal space of the oil collection tank into at least two oil collection areas, at least one oil guide plate.
- the number of the two oil collecting areas is the same as the number of the multi-channel oil conveying grooves, and each oil conveying groove is connected to an oil collecting area.
- the inner space of the oil collecting tank is divided into a plurality of oil collecting areas by using the oil guide plate, and each oil conveying groove is connected to an oil collecting area, which can ensure that each oil conveying groove is distributed to the required lubricating oil and Provide lubrication.
- the size difference of the oil collecting area it is also possible to provide lubrication with different oil amounts to different parts to be lubricated, so as to meet the lubrication requirements of different parts to be lubricated.
- the bottom plate includes opposite first and second sides.
- the gear set rotates, the gear set stirs the lubricating oil into the oil collecting tank from the direction of the upper opening close to the first side.
- the straight sections are all provided, and the straight sections of each oil guide plate are arranged at the position of the bottom plate close to the second side, and the plurality of straight sections are parallel to each other and have a fixed interval.
- the side plate includes a first side plate close to the first gear, and a second side plate opposite to the first side plate, the first side plate has a first height from the bottom plate, and the second side plate There is a second height from the bottom plate, and the first height is lower than the second height.
- the height of the first side plate relatively close to the first gear in the side plate is set to be lower than the height of the second side plate relatively far from the first gear , which can ensure that the lubricating oil smoothly passes over the first side plate, and falls into the oil collecting tank under the blocking of the second side plate, so as to achieve better passive lubrication effect.
- the side plate further includes a third side plate protruding from the bottom plate, the third side plate is located between the first side plate and the second side plate, and the first side plate has a first height from the bottom plate.
- the third side plate has a third height from the bottom plate, and the first height is lower than the third height.
- a third side plate specially used for oil blocking is arranged between the first side plate and the second side plate, and more lubricating oil stirred by the gear set can be collected in the oil collecting tank, so as to achieve more Good passive lubrication effect.
- the bottom plate includes a first side close to the first gear, and a second side opposite to the first side, the second side is located above the first side in the vertical direction, or is opposite to the first side. side flush.
- the upper opening can also be inclined toward the direction of oil supply, so that more lubricating oil stirred by the gear set can be collected in the oil collecting tank to achieve better passive lubrication effect.
- the sealing bin and the oil collecting sump are provided as an integral structure.
- the oil collecting tank and the sealing chamber are formed as an integral structure
- the bottom plate of the oil collecting groove can be used to form the top structure of the sealing chamber
- the side plate of the oil collecting groove can also be used to form the side structure of the sealing chamber, which is beneficial to the reduction of The overall volume of the oil feeder is suitable for the miniaturization of the gearbox.
- the present application also provides an automotive powertrain, comprising a motor and the gearbox provided in the first aspect of the present application, the motor is fixedly connected to the gearbox, and the motor is used to drive a gear set in the gearbox to rotate.
- the automobile powertrain of the present application adopts the gearbox provided in the second aspect of the present application, so it has a better lubricating effect.
- the gear set When the automobile powertrain is running at a low speed, the gear set is protected by active lubrication, and when the automobile powertrain is running at a low speed, the gear set is protected.
- the gear set When running at high speed, the gear set is protected by passive lubrication, which improves the reliability and service life of the vehicle powertrain.
- the vehicle powertrain is further provided with a cooling system, and the cooling system is used to transport the lubricating oil in the oil storage tank to the motor, so as to cool down the motor.
- the vehicle powertrain also transports the lubricating oil in the oil storage tank to the motor through the cooling system, so as to cool down the motor, and there is no need to set up a bearing structure for the lubricating oil in the motor, which improves the power of the vehicle.
- the integration of the assembly is beneficial to control the overall volume of the vehicle powertrain.
- the cooling system includes an oil inlet pipe and an oil return pipe. Both the oil inlet pipe and the oil return pipe are connected between the oil storage tank and the motor. After the lubricating oil flows into the motor from the oil inlet pipe to complete cooling and cooling, it flows through the oil return pipe. back to the oil reservoir.
- a circuit of the cooling system is formed by the oil inlet pipe and the oil return pipe, so that the lubricating oil sent into the motor through the oil inlet pipe can be returned to the oil storage tank through the oil return pipe, so that the lubricating oil used for cooling in the motor can be realized. cyclic exchange.
- a heat exchanger is also included, and the heat exchanger is connected to the oil return pipe in series for cooling the lubricating oil.
- the heat exchange and cooling of the lubricating oil is carried out by using a heat exchanger connected in series on the oil return pipe, so that the high temperature lubricating oil returning from the motor can be cooled by the heat exchanger and returned to the oil storage tank for circulating use. , to avoid excessive temperature rise of the gearbox.
- the motor includes a stator and a rotor that cooperate with each other, and the cooling system sends lubricating oil into the stator and the rotor respectively, so as to cool down the motor.
- the motor includes a stator and a rotor, and the lubricating oil enters the stator and the rotor respectively, which can reduce the overall temperature of the motor and achieve a better cooling effect.
- the present application provides an automobile, comprising wheels and the automobile power assembly provided in the second aspect of the present application, wherein the automobile power assembly is used to drive the wheels to rotate.
- the automobile powertrain provided by the second aspect of the present application has better lubrication and cooling effects, the automobile of the present application has higher stability, and improves the transmission efficiency when the motor drives the wheels to rotate.
- Fig. 1 is the appearance schematic diagram of the automobile powertrain provided by the embodiment of the present application.
- Figure 2 is a schematic cross-sectional view of the automotive powertrain shown in Figure 1;
- Fig. 3 is a schematic diagram of a lubricating oil circulation mode of the cooling system in the automotive powertrain shown in Fig. 1;
- FIG. 4 is a schematic diagram of the oil circuit distribution of the cooling system in the automotive powertrain shown in FIG. 1;
- FIG 5 is a schematic diagram of the internal structure of the gearbox in the automotive powertrain shown in Figure 1;
- Figure 6 is a schematic structural diagram of the gear set and the oil feeder in the gearbox shown in Figure 5;
- Fig. 7 is the structural schematic diagram of another viewing direction of the gear set and the oil feeder in the gearbox shown in Fig. 5;
- Figure 8 is a schematic structural diagram of a passive lubricating oil circuit in the gearbox shown in Figure 5;
- Fig. 9 is a partial structural schematic diagram of the passive lubricating oil circuit in the gearbox shown in Fig. 8;
- Figure 10 is a schematic structural diagram of the oil feeder in the gearbox shown in Figure 5;
- FIG 11 is a schematic structural diagram of another embodiment of the oil feeder in the gearbox shown in Figure 5;
- Figure 12 is a schematic structural diagram of another embodiment of the oil feeder in the gearbox shown in Figure 5;
- Figure 13 is a schematic structural diagram of another embodiment of the oil feeder in the gearbox shown in Figure 5;
- Fig. 14 is a cross-sectional structural schematic diagram of a set of mutually parallel side fuel injection pipes and side fuel feed grooves in the fuel feeder of the gearbox shown in Fig. 10;
- Fig. 15 is a cross-sectional structural schematic diagram of another embodiment of a group of mutually parallel side fuel injection pipes and side fuel feed grooves in the fuel feeder of the gearbox shown in Fig. 10;
- Fig. 16 is a schematic cross-sectional view of another embodiment of the oil feeder of the gearbox shown in Fig. 10;
- Fig. 17 is a schematic structural diagram of another embodiment of the oil feeder of the gearbox shown in Fig. 10;
- Fig. 18 is a schematic structural diagram of another embodiment of the oil feeder of the gearbox shown in Fig. 10;
- Fig. 19 is a schematic structural diagram of another embodiment of the oil feeder of the gearbox shown in Fig. 10;
- FIG. 20 is a schematic structural diagram of another embodiment of the oil feeder of the gearbox shown in FIG. 10 .
- connection means both direct and indirect connections. In the description of the present application, it should be understood that the terms “upper”, “lower”, “front”, “rear”, “top”, “bottom”, “inner”, “outer” etc.
- a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or the first and second features indirectly through an intermediary touch.
- the first feature being “above” and “over” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
- the first feature being “below” and “below” the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the level of the first feature is less than that of the second feature.
- the vehicle powertrain 500 provided by the embodiment of the present application shown in FIG. 1 , which includes a motor 300 and a gearbox 200 .
- the relative positions of the motor 300 and the gearbox 200 are fixed, and the motor 300 and the gearbox 200 are in a drive connection.
- the motor 300 as the power source of the vehicle powertrain, has a high rotational speed and needs to be matched with the gearbox 200 with a certain reduction ratio to transmit the power output by the motor 300 to the wheels of the vehicle, thereby driving the vehicle.
- the vehicle equipped with the vehicle powertrain 500 of the present application may be an electric vehicle or a gasoline-electric hybrid vehicle.
- the motor 300 and the gearbox 200 are respectively provided with housings for protecting the motor 300 and its internal moving components, as well as protecting the gearbox 200 and its internal moving components.
- the housing of the motor 300 and the housing of the gearbox 200 can be independently arranged, and the housings are connected and fixed after the motor 300 and the gearbox 200 are assembled respectively.
- the housing of the motor 300 and the housing of the gearbox 200 may also be integrated as shown in FIG. 1 .
- the automotive powertrain 500 shown in FIG. 1 includes a housing 510 , and the internal components of the motor 300 and the gearbox 200 are accommodated in the housing 510 .
- the housings of the motor 300 and the gearbox 200 are integrally provided, which can improve the integration degree of the automotive powertrain 500 of the present application.
- the integrated arrangement of the housing 510 also omits the connection components between the housing of the motor 300 and the housing of the gearbox 200 , which simplifies the structure of the automotive powertrain 500 and facilitates the realization of a small size of the automotive powertrain 500 . change.
- the motor 300 has a stator 310 and a rotor 320 .
- the stator 310 is fixedly connected to the housing 510 , and the rotor 320 is rotatably connected to the housing 510 .
- the stator 310 is sleeved on the outer side of the rotor 320 , and the stator 310 is used to drive the rotor 320 to rotate.
- the rotor 320 further includes an output section 321 extending out of the stator 310 , and the output section 321 is drivingly connected to the gearbox 200 to transmit power to the gearbox 200 to realize the power output of the motor 300 .
- the output section 321 may also be configured as a rotating shaft structure fixedly connected with the rotor 320 , and the rotor 320 rotates by driving the rotating shaft to realize the function of the motor 300 outputting rotational power from the output section 321 .
- the transmission connection between the motor 300 and the gearbox 200 can be realized by gear meshing transmission, chain transmission, belt transmission and the like.
- a gear segment 322 is also provided on the output segment 321 of the rotor 320
- the gearbox 200 is provided with a driven wheel 218 corresponding to the gear segment 322 .
- the drive connection of the box 200 is also provided.
- the automotive powertrain 500 of the present application further includes a cooling system 600 .
- the cooling system 600 is used for cooling, cooling and lubricating the motor 300 and the gearbox 200 respectively.
- the cooling system 600 can be connected to the inside of the motor 300 , and deliver lubricating oil for cooling to the motor 300 , so as to cool the motor 300 .
- the cooling system 600 includes an oil inlet pipe 610 and an oil return pipe 620 which are respectively connected to the motor 300.
- the side of the oil inlet pipe 610 away from the motor 300 (which can also be understood as the inlet end of the oil inlet pipe 610) is connected to the location where the lubricating oil is stored, and the oil return pipe 620
- the side away from the motor 300 (which can also be understood as the outlet end of the oil return pipe 620 ) is also connected to the location where the lubricating oil is stored.
- the location for storing the lubricating oil may be arranged inside the powertrain 500 of the vehicle, or may be arranged as an external oil storage tank. The lubricating oil needs to have a cooling effect.
- the lubricating oil After the lubricating oil circulates into the motor 300 through the oil inlet pipe 610, it realizes heat exchange with the motor 300, and flows back to the part where the lubricating oil is stored through the oil return pipe 620, so as to realize the circulating flow of the lubricating oil, and to the motor. 300 to achieve cooling.
- the oil inlet pipe 610 and the oil return pipe 620 may be independent pipelines, or as shown in FIG. 2 , they may be at least partially configured as through holes opened inside the casing 510 . At this time, the oil inlet pipe 610, the motor 300 and the oil return pipe 620 form a circulation loop of lubricating oil. During the operation of the motor 300 , a large amount of heat is generated during the driving of the rotor 320 by the stator 310 . In the embodiment shown in FIG. 2 , the lubricating oil delivered by the oil inlet pipe 610 also flows through the stator 310 and the rotor 320 at the same time for cooling the stator 310 and the rotor 320 respectively. The stator 310 and the rotor 320 are also communicated with the oil return pipe 620 respectively, and the lubricating oil after heat exchange is sent into the oil return pipe 620 .
- the cooling system 600 further includes a heat exchanger 630.
- the heat exchanger 630 is connected in series to the oil return pipe 620. After the lubricating oil that has completed heat exchange is cooled by the heat exchanger 630, it passes through the oil return pipe. 620 is sent back to the part where the lubricating oil is stored to ensure that the lubricating oil stored in the part where the lubricating oil is stored is in a low temperature state, and can re-enter the motor 300 through the oil inlet pipe 610 for heat exchange.
- the path of the oil return pipe 620 is provided with a first interface 621 and a second interface 622 for communicating with the heat exchanger 630 , and the lubricating oil in the oil return pipe 620 enters the heat exchanger 630 through the first interface 621 .
- Heat exchange is realized in the middle, and the lubricating oil after heat exchange by the heat exchanger 630 is received through the second interface 622 .
- FIG. 2 only illustrates one lubricating oil circulation mode of the cooling system 600 . In other embodiments, the circulation path of the lubricating oil in the cooling system 600 may also be as shown in FIG.
- the through holes at this cross-sectional position are all set as oil inlet pipes 610, and the oil return pipes are set at another cross-sectional position (in the figure (not shown) to realize the circulating flow of lubricating oil; or in some embodiments, the cooling system 600 is all set as an oil return pipe (not shown in the figure) at this cross-sectional position, and is provided with an oil inlet pipe (not shown in the figure) at another cross-sectional position ), the circulation flow effect of lubricating oil can also be achieved.
- the bottom of the casing 510 can also be set as an oil pool for storing lubricating oil, in this case, the cooling system 600 can only An oil inlet pipe 610 is provided, and the lubricating oil fed into the stator 310 or the rotor 320 may flow downward through the action of gravity after flowing out of the motor 300, and flow into the oil pool. That is, in this embodiment, the oil return pipe 620 can be omitted, or the entire inner wall of the housing 510 can be regarded as the oil return pipe 620, so as to guide the return of the lubricating oil to the oil pool.
- the heat exchanger 630 is preferably arranged on the oil inlet pipe 610 to cool the lubricating oil in the cooling system 600 (as shown in FIG. 3 ). Because the lubricating oil in the cooling system 600 is the lubricating oil used in circulation, the heat exchanger 630 is arranged at any position of the cooling system 600 to achieve the function of cooling the lubricating oil as a whole, and does not affect the cooling system 600 of the present application. function realization.
- the oil inlet pipe 610 for supplying oil to the rotor 320 and the oil inlet pipe 610 for supplying oil to the stator 310 are both connected from the first interface 621 that communicates with the heat exchanger 630 . out, and toward the rotor 320 and the stator 310, respectively.
- the oil return pipe 620 may be communicated with the second interface 622, so as to realize the cooling function of the lubricating oil by the heat exchanger 630.
- the oil inlet pipe 610 can also be arranged to be connected to the second interface 622, and the cooling function of the lubricating oil can be realized during the process of conveying the lubricating oil by the oil inlet pipe 610.
- the oil supply direction of the cooling system 600 to the rotor 320 is from the left side to the right side in the figure, and the oil supply direction of the cooling system 600 to the stator 310 is from the figure in the figure. Right to left. That is, the oil delivery directions of the cooling system 600 to the stator 310 and the rotor 320 are opposite to each other.
- the cooling system 600 may also be configured to deliver the lubricating oil toward the rotor 320 and the stator 310 in the same direction, so as to shorten the length of the oil inlet pipe 610, and It is beneficial to control the overall volume of the automotive powertrain 500 of the present application.
- the cooling system 600 acts on the motor 300 and the gearbox 200 respectively.
- the gearbox 200 includes a box body, and the box body is formed with an inner cavity 240 , and the bottom of the inner cavity 240 is configured as an oil storage pool 243 .
- the oil storage tank 243 is used to carry the lubricating oil, that is, the oil storage tank 243 is used as a part for storing the lubricating oil in this embodiment.
- the oil inlet pipe 610 and the oil return pipe 620 of the cooling system 600 are respectively connected to the oil storage pool 243 .
- the oil inlet pipe 610 includes a first oil inlet pipe 611 and a second oil inlet pipe 612.
- the first oil inlet pipe 611 and the second oil inlet pipe 612 can be respectively connected to the oil storage pool 243, or as shown in FIG. 4, the first oil inlet pipe 611 and the second oil inlet pipe 612 are connected to the oil storage tank 243 after the confluence of the oil storage tank 243;
- the oil return pipe 620 includes the first oil return pipe 621 and the second oil return pipe 622, the first oil return pipe 621 and the
- the secondary oil return pipes 622 can also be connected to the oil storage tank 243 respectively, or as shown in FIG.
- One end of the first oil inlet pipe 611 facing away from the oil storage pool 243 is connected to the stator 310 , and is used for transporting the lubricating oil in the oil storage pool 243 to the stator 310 for cooling.
- the end of the first oil return pipe 621 facing away from the oil storage tank 243 is also connected to the stator 310 for returning the cooled lubricating oil in the stator 310 to the oil storage tank 243;
- the end of the second oil inlet pipe 612 facing away from the oil storage tank 243 is connected to To the rotor 320, it is used to transport the lubricating oil in the oil storage pool 243 to the rotor 320 for cooling.
- the end of the second oil return pipe 622 facing away from the oil storage pool 243 is also connected to the rotor 320 for returning the cooled lubricating oil in the rotor 320 to the oil storage pool 243 .
- first oil inlet pipe 611 and the second oil inlet pipe 612 can also be connected to the heat exchanger 630 respectively, and then the lubricating oil flowing back from the stator 310 and the rotor 320 are respectively sent to the heat exchanger 630 for heat exchange. Or as shown in FIG. 4 , the first oil inlet pipe 611 and the second oil inlet pipe 612 are first merged and then communicated with the heat exchanger 630 , and then the lubricating oil delivered to the motor 300 is first sent to the heat exchanger 630 for cooling.
- an oil pump 640 is further provided on the oil inlet pipe 610 , and the oil pump 640 is used to provide power to drive the lubricating oil to circulate between the motor 300 and the oil storage pool 243 .
- the oil pump 640 can also be disposed on the oil return pipe 620, or the oil pump 640 can be disposed in the heat exchanger 630, which can achieve the effect of driving the circulating flow of lubricating oil and continuously provide cooling to the motor 300.
- FIG. 4 also illustrates the lubricating oil passage of the cooling system 600 to the gearbox 200 .
- the gearbox 200 further includes a gear set 210 accommodated in the inner cavity 240 , an oil feeder 100 and an oil delivery assembly 230 (see FIG. 4 ).
- the gears in the gear set 210 are respectively rotatably connected to the casing, and the oil feeder 100 is disposed on the upper side of the gear set 210 and is fixedly connected to the casing (the casing 510 ). That is, the oil feeder 100 is located on the side of the gear set 210 away from the oil reservoir 243 .
- the oil feeder 100 includes a sealing bin 110 and an oil collecting sump 120 , wherein the sealing bin 110 is located below the oil collecting sump 120 .
- the oil delivery assembly 230 includes an oil delivery pipeline 231 and an oil delivery pump 232 .
- One end of the oil pipeline 231 is connected to the oil storage tank 243 , and the other end is connected to the oil feeder 100 .
- the oil delivery pipeline 231 is communicated with the sealed chamber 110 of the oil feeder 100 .
- the oil delivery pump 232 is connected in series on the oil delivery pipeline 231 , and the oil delivery pump 232 is used for delivering lubricating oil to the sealing chamber 110 of the oil feeder 100 through the oil delivery pipeline 231 .
- the oil supplier 100 can guide the lubricating oil to flow to the lower gear set 210 through the pipeline connected to the sealing chamber 110, so as to realize the functions of lubricating and cooling the gear set 210.
- the oil delivery assembly 230 and the oil feeder 100 in the gearbox 200 can be understood as a part of the cooling system 600 .
- the gear set 210 generates friction and heat during rotation. Through the cooperation between the oil delivery assembly 230 and the oil feeder 100 , lubricating oil can be delivered to the gear set 210 , thereby reducing the internal friction of the gear set 210 .
- the lubricating oil transported to the gear set 210 can continue to flow downward into the oil storage tank 243, and the lubricating oil can take away part of the heat generated by the gear set 210 to achieve a certain cooling effect.
- the casing of the gearbox 200 is the housing 510 shown in FIG. 1 and FIG. 2 .
- the case of the gearbox 200 may also be provided separately.
- the oil transfer assembly 230 is a part of the cooling system 600
- the oil transfer pump 232 in the oil transfer assembly 230 can also be used as the oil pump 640 in the cooling system 600 . That is, the oil transfer pipeline 231 and the oil inlet pipe 610 merge at the outside of the oil storage tank 243 , and the oil transfer pump 232 is arranged between the confluence and the oil storage tank 243 .
- the oil delivery pump 232 In the process of driving the lubricating oil to flow through the oil feeding pipeline 231 to the oil supply device 100 , the oil delivery pump 232 also drives the lubricating oil to enter the motor 300 through the oil inlet pipe 610 synchronously to cool the motor 300 . It can be understood that, in this embodiment, a three-way valve may be provided at the confluence of the oil delivery pipeline 231 and the oil inlet pipe 610 to divert the lubricating oil driven by the oil delivery pump 232 .
- the gear set 210 includes a driven wheel 218 , a first gear 211 and a second gear 212 .
- the driven wheel 218 , the first gear 211 and the second gear 212 are respectively rotatably connected to the casing of the gearbox 200 , and the first gear 211 and the second gear 212 are meshed with each other.
- the driven wheel 218 is also fixedly connected with the second gear 212 .
- the gear set 210 further includes a second gear shaft 214.
- the second gear shaft 214 passes through the rotation centers of the driven wheel 218 and the second gear 212, and is fixedly connected with the driven wheel 218 and the second gear 212, so as to realize the driven wheel Fixed connection between 218 and second gear 212 .
- the second gear 212 fixedly connected with the driven wheel 218 also rotates synchronously with the driven wheel 218 .
- the second gear 212 further transmits the rotational motion to the first gear 211 through the mutual meshing between the second gear 212 and the first gear 211 .
- the automobile powertrain 500 of the present application drives the rotor 320 to rotate through the stator 310 of the motor 300 , and then the gear segment 322 on the rotor 320 meshes with the driven wheel 218 and the second gear 212 meshes with the first gear 211 , to achieve the effect of transmitting the rotational power output by the motor 300 to the first gear 211 . It can be seen from the schematic diagrams in FIGS.
- the second gear 212 can also be integrally provided with the driven wheel 218 , that is, the second gear 212 can also work as a driven gear.
- the second wheel 212 meshes with the first gear 211, it also directly meshes with the gear segment 322 of the rotor 320.
- the gearbox 200 can also be implemented in this embodiment. deceleration effect.
- the embodiment in which the second gear 212 is used as the driven gear can further compress the volume of the gearbox 200 , thereby reducing the overall volume of the vehicle powertrain 500 .
- the gear set 210 may further include a third gear (not shown) and a fourth gear (not shown).
- the third gear is fixedly connected with the first gear 211 , the third gear and the fourth gear are meshed with each other, and the rotating action of the first gear 211 is transmitted to the fourth gear, so as to realize the next-stage deceleration effect of the gear set 210 .
- the first gear 211 can be used as the output gear of the gear set 210 in the gearbox 200 to output the rotational power transmitted by the gearbox 200 ; the first gear 211 can also be used as a transition gear of the gear set 210 in the gearbox 200 , the first-stage deceleration effect in the gear set 210 is achieved through meshing with the second gear 212 .
- the second gear 212 may also be connected to the driven wheel 218 through the transition of a pair of intermediate gears. That is, the gear set 210 in the gearbox 200 of the present application does not limit the number of gears, nor does it limit the number of transmission stages in the gear set 210. Through the cooperation of the oil feeder 100 and the oil delivery assembly 230, the gear set 210 lubricating and cooling effect.
- the gear set 210 also includes a first gear shaft 213 , a first bearing 215 and a second bearing 216 .
- the first gear shaft 213 passes through the rotation center of the first gear 211 and is fixedly connected with the first gear 211 .
- the number of the first bearings 215 is two, and the two first bearings 215 are fixed to both sides of the first gear 211 along the length direction of the first gear shaft 213 . That is, in the length direction of the first gear shaft 213 , the first gear 211 is located between the two first bearings 215 .
- the first bearing 215 includes a first bearing stator 2151 and a first bearing rotor 2152 , and the first bearing rotor 2152 can rotate in the first bearing stator 2151 .
- Each first bearing stator 2151 is fixedly connected to the case of the gearbox 200, and each first bearing rotor 2152 is fixedly connected to the first gear shaft 213, so that the first gear shaft 213 can pass through the two first bearing rotors
- the rotation of 2152 relative to the first bearing stator 2151 realizes the rotational connection with the box body.
- the first gear 211 is fixedly connected with the first gear shaft 213 , that is, the first gear 211 is rotatably connected with the case of the gearbox 200 through the cooperation of the first gear shaft 213 and the first bearing 215 .
- the first gear shaft 213 is configured as a U-shaped bracket structure, which includes a support portion 2131 fixedly connected with the first bearing 215 , and connecting portions 2132 on both sides of the support portion 2131 arranged in rows.
- the two connecting portions 2132 are respectively fixedly connected with the first gear 211 , which also achieves the effect of the fixed connection between the first gear shaft 213 and the first gear 211 .
- the number of the second bearings 216 is also two, and the two second bearings 216 are fixed to both sides of the second gear 212 along the length direction of the second gear shaft 214 and are also fixed to both sides of the driven wheel 218 . That is, in the length direction of the second gear shaft 214 , the second gear 212 and the driven wheel 218 are both located between the two second bearings 216 .
- the second bearing 216 includes a second bearing stator 2161 and a second bearing rotor 2162 , and the second bearing rotor 2162 can rotate within the second bearing stator 2161 .
- Each second bearing stator 2161 is respectively fixedly connected with the case of the gearbox 200, and each second bearing rotor 2162 is fixedly connected with the second gear shaft 214, so that the second gear shaft 214 can pass through the two second bearing rotors
- the rotation of 2162 relative to the second bearing stator 2161 realizes the rotational connection with the box.
- the second gear 212 is fixedly connected to the second gear shaft 214 , that is, the second gear 212 is rotationally connected to the case of the gearbox 200 through the cooperation of the second gear shaft 214 and the second bearing 216 .
- the meshing transmission between the first gear 211 and the second gear 212 will cause friction between the first gear 211 and the second gear 212 .
- the first bearing stator 2151, the first bearing rotor 2152, and the second bearing stator 2161 The frictional force between the rotor 2162 and the second bearing rotor 2162 also increases synchronously, which will cause the heat generated by the first bearing 215 and the second bearing 216 to increase.
- the lubricating oil delivered by the oil feeder 100 to the gear set 210 can be targeted to act on the above-mentioned parts with friction phenomenon and high temperature rise, and then the lubricating oil can be delivered to the meshing part of the first gear 211 and the second gear 212 through the lubricating oil.
- a stable oil film is formed at the position (defined as the first meshing position), inside the first bearing 215 and inside the second bearing 216 to slow down the wear caused by metal friction, thereby improving the transmission efficiency of the gear set 210, thereby improving the transmission efficiency of the gearbox 200. reliability and longevity.
- the oil feeder 100 provides lubricating oil to the gear set 210 , that is, the oil feeder 100 provides lubricating oil to the parts to be lubricated of the gear 210 .
- the gear set 210 further includes the third gear and the fourth gear
- the third gear and the fourth gear are engaged at the second meshing position
- the oil feeder 100 can also deliver lubricating oil corresponding to the second meshing position
- the gear set 210 further includes a third bearing (not shown in the figure) and a fourth bearing (not shown in the figure)
- the oil feeder 100 can also deliver lubricating oil corresponding to the third bearing and the fourth bearing.
- other parts of the gear set 210 where friction is present can also be defined as parts to be lubricated
- the parts to be lubricated of the gear set 210 can include the above-mentioned parts with frictional temperature rise, but are not limited to the above-mentioned parts.
- the parts to be lubricated in the gear set 210 can be arbitrarily set according to actual requirements, and the oil supplier 100 provides lubrication and cooling to the set parts to be lubricated.
- the lubricating oil supply 100 can lubricate the inside of the first bearing 215 and the inside of the second bearing 216 by feeding lubricating oil from the side of the joint part of the first bearing stator 2151 and the first bearing rotor 2152, and from the first bearing stator 2151 and the first bearing rotor 2152. Lubricating oil is sent to the side of the joint part of the two bearing stators 2161 and the second bearing rotor 2162 to achieve lubrication inside the first bearing 215 and the inside of the second bearing 216 respectively.
- the oil feeder 100 can also feed lubricating oil to the top of the first bearing 215 and the top of the second bearing 216 respectively, and through the opening of the top of the first bearing stator 2151 (not shown in the figure) shown), and a hole (not shown in the figure) is opened at the top of the second bearing stator 2152 to realize the penetration of lubricating oil into the first bearing rotor 2152 and the second bearing rotor 2162, so as to realize the penetration of the first bearing 215 inside and Lubrication inside the second bearing 216 .
- the oil feeder 100 of the present application can realize the active lubrication function of the gear set 210 through the connection between the sealing chamber 110 and the oil delivery assembly 230 .
- the oil collecting groove 120 in the oil feeder 100 can realize the passive lubricating function of the gear set 210 .
- the first gear 211 is also spaced apart from the inner cavity 240 of the casing to form an oil churning channel 250 .
- the inner cavity 240 of the box body includes a first side wall 241 and a top wall 242 .
- the first side wall 241 is located on the side of the first gear 211 away from the second gear 212 , and the first side wall 241 and the first gear 211 are spaced from each other.
- the top wall 242 is located above the first side wall 241 and is connected to the first side wall 241 .
- the top wall 242 is also spaced apart from the first gear 211 .
- the connected first side wall 241 and the top wall 242 are spaced from the first gear 211 together to form an oil churning channel 250 .
- the bottom of the first gear 211 is also located in the oil storage tank 243, and the liquid level of the lubricating oil carried in the oil storage tank 243 is higher than the bottom of the first gear 211, so that the bottom of the first gear 211 is immersed in the lubricating oil. in oil.
- the first gear 211 is away from the rotation direction of the side of the second gear 212 , and rotates along the bottom of the first gear 211 to the top of the first gear 211 . Therefore, during the working process of the first gear 211 , the lubricating oil in the oil storage tank 243 can be continuously brought into the oil stirring channel 250 .
- a certain threshold for example, 1000 rpm
- the oil feeder 100 is located on the side of the gear set 210 away from the oil storage tank 243 , and the oil collecting tank 120 of the oil feeder 100 is disposed at the end of the oil churning channel 250 , that is, the oil feeder 100 is arranged corresponding to the oil churning channel 250 , so that the The oil sump 120 faces the churning passage 250 and collects lubricating oil.
- the lubricating oil stirred by the first gear 211 through the oil stirring channel 250 can fall into the oil collecting tank 120, and then the lubricating oil is guided to flow to the lower gear set through the pipeline connected to the oil collecting tank 120.
- 210 realizing the passive lubrication function of the gear set 210 .
- the churning passage 250 extends over the top of the first gear 211 and toward the second gear 212 side.
- the oil feeder 100 is still located on the side of the first gear 211 close to the second gear 212 , and the height of the oil feeder 100 is lower than the height of the top of the first gear 211 .
- the rotation direction of the side of the first gear 211 away from the second gear 212 is from the bottom to the top of the first gear 211
- the rotation direction of the side of the first gear 211 close to the second gear 212 is from top to bottom.
- the movement direction of the lubricating oil in the oil churning channel 250 moves from the oil reservoir 243 to the top wall 242; as the first gear 211 approaches the second gear
- the rotation direction of one side of 212 is downward, and the movement direction of the lubricating oil in the oil churning channel 250 moves from the top wall 242 to the oil storage pool 243 .
- the height of the oil feeder 100 is lower than the height of the top of the first gear 211 , which can ensure that the oil collecting tank 120 receives the lubricating oil sent through the oil stirring channel 250 .
- the top wall 242 further includes a first end surface 2421 close to the first side wall 241 , and a second end surface 2422 opposite to the first end surface 2421 . It can be understood that, on the path of the oil churning channel 250 , the lubricating oil moves from the side of the first end surface 2421 to the side of the second end surface 2422 . That is, the second end surface 2422 is closer to the end of the oil churning channel 250 than the first end surface 2421 , or it is described that the second end surface 2422 is closer to the oil collecting sump 120 than the first end surface 2421 .
- setting the second end surface 2422 to be located below the first end surface 2421 in the vertical direction can further guide the lubricating oil in the oil churning channel 250 and ensure that the lubricating oil in the oil churning channel 250 flows into the oil churning channel 250 . in the oil sump 120.
- the distance h0 between the liquid level of the lubricating oil in the oil storage tank 243 and the center of rotation of the first gear 211 is defined, which is less than or equal to the first gear 211.
- the radius a1 of the root circle A of a gear 211 is defined, which is less than or equal to the first gear 211.
- the root portions 2111 a of any two transmission teeth 2111 are aligned with the root circle A of the first gear 211 .
- the distance h0 between the liquid level of the lubricating oil in the oil storage tank 243 and the center of rotation of the first gear 211 is set to be less than or equal to the radius a1 of the root circle A of the first gear 211, which can ensure the lubricating oil carried in the oil storage tank 243.
- At least the transmission teeth 2111 located at the bottom of the first gear 211 are completely submerged, thereby ensuring the depth of the first gear 211 extending into the lubricating oil, and ensuring that the first gear 211 can stir enough lubricating oil to supply oil after the rotational speed reaches a certain threshold.
- a reliable passive lubrication effect is formed on the gear set 210.
- the oil feeder 100 can receive the lubricating oil provided by the oil delivery assembly 230 and the lubricating oil sent by the first gear 211 through the oil churning channel 250 , so as to realize the respective realization of the gear set 210 .
- the vehicle powertrain 500 of the present application drives the vehicle to travel by outputting the rotational speed. And the speed of the car will change in the process of traveling, and the speed output of the corresponding car powertrain 500 will also change.
- the automotive powertrain 500 has a working condition of high-speed rotation and a working condition of low-speed rotation, and the amount of lubricating oil required by the generator 300 and the gearbox 200 is different under the two working conditions.
- the first gear 211 with a higher rotational speed can send the lubricating oil in the oil storage tank 243 into the oil feeder 100 through the oil stirring channel 250 to achieve the effect of passive lubrication.
- the low-speed rotation condition and the high-speed rotation condition of the gearbox 200 of the present application are only a comparison with respect to the speed of the same gearbox 200 itself.
- the automotive powertrain using the solution of the present application can adjust the passive lubrication intervention timing and oil amount of the gearbox 200, thereby meeting the working requirements of different automotive powertrains 500.
- the corresponding Adjusting the amount of lubricating oil sent by the first gear 211 into the oil feeder 100 through the oil churning channel 250, or adjusting the rotational speed threshold of the first gear 211 to realize the oil churning function, etc. can achieve the intervention timing for adjusting the passive lubrication, and The effect of adjusting the amount of passive lube oil.
- the automotive powertrain 500 of the present application can also adjust the amount of lubricating oil for active lubrication by adjusting the power of the oil delivery pump 232 in the oil delivery assembly 230, so as to meet the requirements of different automotive powertrains 500. work demands.
- the speed of the gear set 210 also has a high speed and a low speed.
- the oil pump 232 can also adjust its own power, so that the oil feeder 100 is in the gear set 210.
- the oil quantity of the delivered lubricating oil can also be adjusted correspondingly at low rotation speed, so as to match the synchronous lubrication requirement of the gear set 210 under the low rotation speed condition.
- the gearbox 200 of the present application also has the capability of passive lubrication adaptation. That is, the rotational speed of the first gear 211 is positively correlated with the amount of lubricating oil received by the gear set 210 .
- the automotive powertrain 500 using the solution of the present application can control the oil pump 232 so that the oil feeder 100 can only actively lubricate the gear set 210, or the oil feeder 100 only passively lubricates the gear set 210, and even achieves the effect that the oil feeder 100 simultaneously performs active lubrication and passive lubrication on the gear set 210, so as to meet the lubrication and cooling requirements of the gear set 210 at different rotational speeds.
- the rotational speed of the motor 300 controlled by the automotive powertrain 500 is within 2000 rpm, only the oil delivery pump 232 is controlled to deliver lubricating oil to the oil feeder 100 to actively lubricate the gear set 210 .
- the rotational speed output by the gearbox 200 can be within 1000 rpm; and when the rotational speed of the motor 300 is equal to or higher than 2000 rpm, the lubricating oil stirred by the first gear 211 can enter the collector through the oil stirring channel 250.
- the oil feeder 100 uses the lubricating oil sent from the oil churning channel 250 to lubricate the gear set 210 at this time.
- the oil pump 232 can continue to work and continuously provide active lubrication to the gear set 210; lubricating.
- the gear set 210 there may be other parts of the gear set 210 , which only need to provide passive lubrication or active lubrication when the gearbox 200 is working to meet the working requirements.
- the gearbox 200 when the gearbox 200 is in a high-speed condition or a low-speed condition, only the oil amount of active lubrication needs to be provided to meet the working needs; or there are other parts of the gear set 210, in The gearbox 200 does not require lubrication when the gearbox 200 is in a low speed operating condition, while passive lubrication is provided when the gearbox 200 is in a high speed operating condition to meet working needs.
- the oil feeder 100 may also be configured with an oil delivery route correspondingly, so as to individually meet the working requirements of the above-mentioned parts.
- the oil feeder 100 includes an oil sump 120 and a sealing chamber 110 .
- the oil collecting tank 120 is fixedly connected with the sealing chamber 110 , and the oil collecting groove 120 is located above the sealing chamber 110 .
- the interior of the sealing chamber 110 is a sealing structure, and an oil inlet 111 and a plurality of fuel injection pipes 112 are also provided outside the sealing chamber 110 .
- the fuel inlet 111 and several fuel injection pipes 112 are all communicated with the inner sealing structure of the sealing chamber 110 .
- the oil inlet 111 is used to communicate with the oil delivery pipeline 231 of the oil delivery component 230 , and the oil delivery component 230 delivers the lubricating oil in the oil storage pool 243 to the sealing chamber 110 through the oil delivery pipeline 231 .
- the fuel injection pipes 112 also connected to the sealing chamber 110 respectively extend in a direction away from the sealing chamber 110 .
- the lubricating oil fed into the sealing chamber 110 from the oil inlet 111 forms a certain pressure in the closed sealing chamber 110 , and is sprayed out of the sealing chamber 110 through the various fuel injection pipes 112 , and then acts on each part of the gear set 210 At the part to be lubricated, the purpose of delivering lubricating oil to the part to be lubricated is achieved.
- each fuel injection pipe 112 can be matched with the number of the parts to be lubricated in the gear set 210, that is, each fuel injection pipe 112 extends toward one of the parts to be lubricated in the gear set 210, so as to reach the gear set 210.
- 210 The effect of active lubrication of all parts to be lubricated in an all-round way.
- the oil collecting tank 120 includes a bottom plate 121 and a side plate 122 , wherein the bottom plate 121 is fixedly connected with the sealing chamber 110 .
- the upper opening 123 is the opening of the oil collecting tank 120 , and the lubricating oil conveyed from the oil stirring channel 250 enters the oil collecting tank 120 through the upper opening 123 .
- the oil collecting tank 120 is also communicated with an oil conveying groove 124 , and the number of the oil conveying grooves 124 in the oil feeder 100 is the same as that of the fuel injection pipes 112 .
- Each oil transport groove 124 also extends in a direction away from the oil collecting groove 120 , and each oil feeding groove 124 extends toward a part to be lubricated in the gear set 210 , so as to transport the lubricating oil collected in the oil collecting groove 120 to the gear set 210 at each part to be lubricated.
- each oil injection pipe 112 extends toward a part to be lubricated in the gear set 210, and each oil delivery groove 124 also extends toward a part to be lubricated in the gear set 210, each oil delivery groove 124 can be provided. Both extend parallel to one fuel injection pipe 112 to act on a portion to be lubricated in the gear set 210 . That is, in the fuel feeder 100 of the present application, each fuel injection pipe 112 and its corresponding fuel delivery groove 124 are set as a group, and the fuel injection pipes 112 and the fuel delivery groove 124 of the same group extend in the same direction and act on the gears. A part to be lubricated in the group 210, used to deliver lubricating oil.
- the oil injection pipe 112 extending from the sealing chamber 110 to the part to be lubricated can deliver the lubricating oil delivered by the oil delivery assembly 230 ;
- the oil conveying groove 124 extending from the oil collecting groove 120 to the part to be lubricated can convey the lubricating oil conveyed by the first gear 211 .
- the oil feeder 100 of the present application can provide lubricating oil to each to-be-lubricated part of the gear set 210 through the arrangement of multiple sets of oil-injection pipes 112 and oil-conveying grooves 124, and realizes active lubrication for each to-be-lubricated part Combined with the effect of passive lubrication, the gear set 210 can be reliably lubricated under both high-speed and low-speed conditions, thereby improving the transmission efficiency and reliability of the gear set 210 and prolonging the service life of the gear set 210 .
- the fuel injection pipe 112 includes a lateral fuel injection pipe 1121 .
- the lateral fuel injection pipe 1121 extends away from the sealing chamber 110 in the horizontal direction;
- the oil conveying groove 124 includes a lateral oil conveying groove 1241 which also extends away from the oil conveying groove 222 in the horizontal direction.
- One side fuel delivery groove 1241 extends parallel to one side fuel injection pipe 1121, and because the oil collecting groove 120 is located above the sealing chamber 110, the side fuel delivery groove 1241 is also simultaneously located above the side fuel injection pipe 1121, and the two are parallel to each other extends toward a portion to be lubricated in the gear set 210 .
- the volume of the oil feeder 100 is small, and the volume of the gear set 210 is relatively large. Therefore, when the oil feeder 100 with a small volume is disposed on the side of the gear set 210 away from the oil storage tank 243 , the gear set 210 has a relatively large volume.
- Some of the parts to be lubricated may be located at the lateral positions of the oil collecting groove 120 and the sealing chamber 110 . The provision of the lateral fuel injection pipe 1121 and the lateral fuel delivery groove 1241 extending in the horizontal direction can achieve the lubricating effect of the fuel feeder 100 on the parts to be lubricated partially located in the lateral direction.
- the lateral oil conveying groove 1241 communicates with the side plate 122 of the oil collecting groove 120 .
- a notch 1225 is formed on the side plate 122
- the lateral oil conveying groove 1241 includes a groove bottom 1242 and a groove wall 1243 .
- the groove bottom 1242 of the lateral oil feeding groove 1241 is connected to the bottom plate 121 of the oil collecting groove 120 and extends toward a position to be oiled in the gear set 210 in the horizontal direction.
- the number of groove walls 1243 of the lateral oil conveying groove 1241 is two.
- the two groove walls 1243 are respectively connected with the side plates 122 on the opposite sides of the notch 1225.
- the two groove walls 1243 also extend synchronously with the groove bottom 1242 towards the part to be supplied with oil.
- the two groove walls 1243 and the groove bottom 1242 work together to
- the lubricating oil flowing out from the notch 1225 of the oil collecting tank 120 is drained to the part to be supplied with oil, and flows down from the end of the oil conveying tank 124 away from the oil collecting tank 120 to realize the lubrication of the part to be supplied oil.
- the groove bottom 1242 includes a first end 1242 a on a side close to the notch 1225 , and a second end 1242 b on a side away from the oil collecting groove 120 .
- the second end 1242b is located below the first end 1242a, or disposed flush with the first end 1242a. Therefore, in the process of extending toward the part to be lubricated, the groove bottom 1242 of the oil conveying groove 124 extends toward the part to be lubricated in an inclined downward or horizontal direction, thereby ensuring the flow direction of the lubricating oil in the oil conveying groove 124, so that the oil conveying groove 124
- the lubricating oil in the lubricating oil can smoothly flow from the side of the first end 1242a to the side of the second end 1242b under the action of gravity.
- the lateral fuel injection pipe 1121 located under the lateral oil delivery groove 1241 can also be inclined and inclined synchronously with the lateral fuel delivery groove 1241 , that is, the side fuel injection pipe 1121 faces away from the sealing chamber 110 and is located on the side in the vertical direction.
- the fuel injection pipe 1121 is located below one end of the sealing chamber 110, or the two are flush. It can also ensure that the lubricating oil in the side fuel injection pipe 1121 flows toward the part to be lubricated.
- a plurality of notches 1225 need to be started on the side plate 122 .
- the number of the multi-channel lateral oil delivery grooves 1241 is the same as the number of the plurality of notches 1225 , and each side oil delivery groove 1241 is fixed corresponding to a notch 1225 and communicates with the oil collecting sump 120 through the notch 1225 .
- the groove bottoms 1242 of the multi-way lateral oil transfer grooves 1241 each have its corresponding first end 1242a.
- a plurality of first ends 1242a should be arranged flush in the horizontal direction, so that the lubricating oil in the oil collecting tank 120 can be evenly distributed to the side oil conveying grooves 1241 of each road, and the plurality of waiting for the gear set 210 Lubricating parts are evenly supplied with lubricating oil.
- FIG. 14 Please refer to the cross-sectional structural diagram of a group of side fuel injection pipes 1121 and side fuel delivery grooves 1241 that are parallel to each other shown in FIG. 14 .
- the lateral fuel injection pipe 1121 and the lateral fuel delivery groove 1241 both extend along the first horizontal direction 001 .
- the extension length of the lateral fuel injection pipe 1121 is shorter than the extension length of the lateral fuel delivery groove 1241 .
- the lateral fuel injection pipe 1121 is connected to the sealing chamber 110, and under the action of the oil delivery assembly 230, the lubricating oil inside the sealing chamber 110 has a certain pressure, so the side fuel injection pipe 1121
- the outflowing lubricating oil has a certain initial velocity under the action of pressure.
- the direction of the initial velocity is parallel to the first horizontal direction 001 .
- the upper opening 123 is provided in the oil collecting tank 120, the lubricating oil in the oil collecting tank 120 only flows to the part to be lubricated through the lateral oil conveying groove 1241 under the action of gravity, so the lubricating oil flowing out from the lateral oil conveying groove 1241 is in the first
- the initial velocity in the horizontal direction 001 is relatively small.
- the lubricating oil with a large initial velocity output from the side fuel injection pipe 1121 can act on the part to be lubricated, and at the same time to ensure that the lubricating oil with a small initial velocity output from the side oil conveying groove 1241 can also act on the part to be lubricated
- properly shortening the extension length of the lateral fuel injection pipe 1121 along the first horizontal direction 001 can ensure that the lubricating oil output from the lateral fuel injection pipe 1121 falls, and the lubricating oil output from the lateral oil conveying groove 1241 falls.
- the landing points are coincident, and all can accurately act on the parts to be lubricated.
- the lateral fuel injection pipe 1121 and the lateral fuel delivery groove 1241 both extend along the first horizontal direction 001 .
- the extension directions of the side fuel injection pipe 1121 and the side fuel delivery groove 1241 can also be the other extension directions other than the first horizontal direction 001, or the side fuel injection pipe 1121 and the side fuel delivery groove 1241.
- the path extends in two or more different directions successively.
- the length of the extension structure of the lateral fuel injection pipe 1121 at the farthest end of the sealing chamber 110 can be defined, compared with the distance set of the lateral fuel tank 1241.
- the length of the extension structure at the farthest end of the oil groove 120 is shorter, so as to achieve the above-mentioned effect of ensuring that the landing point of the lubricating oil output by the lateral fuel injection pipe 1121 coincides with the landing point of the lubricating oil output by the lateral oil conveying groove 1241 .
- the lateral fuel injection pipe 1121 and the lateral fuel delivery groove 1241 also extend along the first horizontal direction 001.
- the difference from the embodiment in FIG. 14 is that, in this embodiment, the extension length of the side fuel injection pipe 1121 exceeds the extension length of the side fuel oil groove 1241 .
- the lateral fuel injection pipe 1121 has an extension section 1122 extending beyond the extension length of the lateral fuel delivery groove 1241 , and an open opening 1123 is provided at the top of the extension section 1122 .
- the lubricating oil delivered by the lateral oil groove 1241 can flow into the extension section 1122 through the open opening 1123, and continue to flow along the extension section 1122 to the part to be lubricated.
- the side fuel injection pipes 1121 and side fuel delivery grooves 1241 extend in the same direction, and the side fuel injection pipes 1121 are located above the side fuel delivery grooves 1241, the side fuel injection pipes are used in the
- the upper part of 1121 is provided with an open opening 1123, which can make the lubricating oil in the lateral oil feeding groove 1241 flow into the extension section 1122 along the opening 1123, and then extend the extension section 1122 toward the part to be lubricated, so that the lubricating oil in the lateral oil feeding groove 1241 can be lubricated.
- the oil is delivered to the part to be lubricated.
- the extension section 1122 in the side fuel injection pipe 1121 is arranged, so that the lubricating oil in the side fuel injection groove 1241 is condensed into the side fuel injection pipe 1121 in advance, and then the oil in the side fuel injection pipe 1121 is used.
- the extension 1122 enables the delivery of lubricating oil.
- the extended section 1122 of the side fuel injection pipe 1121 is used to simultaneously realize the lubricating oil delivery function during active lubrication and passive lubrication.
- the present embodiment also shortens the length of the lateral oil supply groove 1241 , simplifies the structure of the oil supply device 100 , and reduces the overall volume of the oil supply device 100 .
- the fuel injection pipe 112 further includes a vertical fuel injection pipe 1124 (see also FIG. 11 and FIG. 12 ).
- the vertical fuel injection pipe 1124 extends away from the sealing chamber 110 in the vertical direction;
- the oil conveying groove 124 includes a vertical oil conveying groove 1244 which also extends away from the oil conveying groove 222 in the vertical direction.
- One vertical oil tank 1244 extends parallel to one vertical fuel injection pipe 1124, and because the oil collecting tank 120 is located above the sealing chamber 110, the vertical oil tank 1244 is located on one side of the vertical fuel injection pipe 1124, and the two are parallel to each other extends toward a portion to be lubricated in the gear set 210 .
- the oil feeder 100 can deliver lubricating oil to the parts to be lubricated below the oil feeder 100 through the vertical fuel injection pipe 1124 and the vertical oil delivery groove 1244 .
- the oil feeder 100 is disposed on the side of the gear set 210 away from the oil storage tank 243 , some parts of the gear set 210 to be lubricated may also be located below the oil collecting tank 120 and the sealing chamber 110 .
- the vertical oil injection pipe 1124 and the lateral oil delivery groove 1241 extending in the vertical direction are provided, so that the oil feeder 100 can lubricate the parts to be lubricated partially located at the lower position.
- the vertical fuel injection pipe 1124 is configured as an opening at the bottom of the sealing chamber 110
- the vertical fuel delivery groove 1244 is configured as a through groove penetrating the sealing chamber.
- the vertical oil tank 1244 is also communicated with the bottom plate 121 of the oil collection tank 120 . That is, the bottom plate 121 of the oil collecting tank 120 is connected to a vertical oil conveying tank 1244 with a through-slot structure. The oil flows downward to the oil delivery groove 1244, and flows through the sealing chamber 110 to its corresponding lubricated part.
- the oil collecting tank 120 and the sealing chamber 110 can be constructed as two independent components as shown in FIGS. In other embodiments, the oil collecting tank 120 and the sealing chamber 110 may also be provided as an integral structure as shown in FIG. 16 .
- the bottom plate 121 of the oil collecting tank 120 can be used to form the top structure of the sealing chamber 110
- the side plate 122 of the oil collecting tank 120 can also extend to the bottom of the bottom plate 121 to form the side structure of the sealing chamber 110 .
- the integrated oil collecting tank 120 and the sealing chamber 110 can reduce the overall volume of the oil feeder 100 , thereby adapting to the miniaturization of the gearbox 200 .
- the oil feeder 100 may also be provided with an auxiliary oil transmission groove independent of the oil transmission groove 124 or the fuel injection pipe 112 . (not shown in the figure) and auxiliary fuel injection pipe (not shown in the figure), to provide lubricating oil to the above-mentioned parts separately.
- auxiliary oil transmission groove independent of the oil transmission groove 124 or the fuel injection pipe 112 .
- auxiliary fuel injection pipe not shown in the figure
- the auxiliary fuel injection pipe extends toward the part that only needs active lubrication, so as to provide only active lubrication to the part; or no lubrication is required when the gearbox 200 is in a low-speed operating condition, and when the gearbox 200 is in a high-speed operating condition
- the oil feeder 100 may be provided with an auxiliary oil delivery groove connected to the oil collecting sump 120 , and the auxiliary oil delivery groove extends toward the part that only needs passive lubrication, so as to provide passive lubrication to the part.
- the auxiliary oil delivery groove and the auxiliary fuel injection pipe are respectively provided independently of the oil delivery groove 124 and the fuel injection pipe 112 , which further expands the application scope of the oil feeder 100 of the present application.
- the side plate 122 includes a first side plate 1221 adjacent to the first gear 211 , and a second side plate 1222 opposite to the first side plate 1221 .
- the first side plate 1221 has a first height h1 relative to the bottom plate 121
- the second side plate 1222 has a second height h2 relative to the bottom plate 121
- the second height h2 is higher than the first height h1 . It can be understood that because the first side plate 1221 is closer to the first gear 211 than the second side plate 1222 , when the gear set 210 rotates, the first gear 211 agitates the lubricating oil from the oil stirring channel 250 into the oil collecting tank 120 .
- the oil collecting tank 120 is sent into the oil collecting tank 120 from the side of the upper opening 123 close to the first side plate 1221 .
- Setting the height of the first side plate 1221 is relatively low, which can ensure that the lubricating oil can smoothly pass over the first side plate 1221 and enter the oil collecting tank 120 .
- the height of the second side plate 1222 is relatively high, so that more lubricating oil can be intercepted at a position far from the first gear 211, so that it falls into the oil collecting tank 120, thereby ensuring that the amount of lubricating oil in the oil collecting tank 120 meets the Working demands of gear set 210 .
- the height of the first side plate 1221 relative to the bottom plate 121 and the height of the second side plate 1222 relative to the bottom plate 121 are both relative to the bottom plate 121 on the same horizontal plane as a reference. That is, the heights of the first side plate 1221 and the second side plate 1222 can be understood as absolute heights in the vertical direction, and the reference starting point of the absolute heights is the horizontal plane where the bottom plate 121 is located. Therefore, in some embodiments, when the bottom plate 121 may be set to an inclined or stepped structure, it can also ensure that the height of the second side plate 1222 is higher than that of the first side plate 1221 to achieve better lubrication Oil collection effect.
- the side plate 122 also includes a first side plate 1221 adjacent to the first gear 211 , and a second side plate 1222 opposite to the first side plate 1221 .
- the side panel 122 further includes a third side panel 1223 located between the first side panel 1221 and the second side panel 1222 .
- the third side plate 1223 is protruded from the bottom plate 121 , and the third side plate 1223 has a third height h3 relative to the bottom plate 121 , and the third height h3 is also higher than the first height h1 .
- the third side plate 1223 by setting the third side plate 1223 to intercept the lubricating oil sent by the first gear 211 , it can also ensure that the amount of lubricating oil in the oil collecting tank 120 can meet the working requirements of the gear set 210 .
- the height of the third side plate 1223 relative to the bottom plate 121 is also the same horizontal plane as the height of the first side plate 1221 relative to the bottom plate 121 as a reference. That is, the third height h3 of the third side plate 1223 and the first height h1 of the first side plate 1221 can also be understood as absolute heights in the vertical direction.
- the bottom plate 121 includes a first side 1211 and a second side 1212 opposite to each other.
- the first side 1211 is located close to the first gear 211
- the second side 1212 is located relatively far from the first gear 211 .
- the second side 1212 is flush with the first side 1211 in the vertical direction, or higher than the first side 1211 . That is, the oil collecting groove 120 is fixed in the casing in a relatively inclined posture, and the side of the inclined oil collecting groove 120 close to the first gear 211 is relatively lower. Similar to the embodiments of FIGS.
- the bottom plate 121 can be configured as a flat plate-like structure as shown in FIG. 19 . At this time, the bottom plate 121 needs to be inclined so that the first side 1211 is lower than the second side 1212 so as to realize the collection of more lubricating oil. ;
- the bottom plate 121 can also be shown in FIG. 18 , consisting of a first plate body 1213 and a second plate body 1214 that are fixedly connected to each other.
- the first side 1211 is formed on the side of the first board 1213 away from the second board 1214
- the second side 1212 is formed on the side of the second board 1214 away from the first board 1213 .
- the first plate body 1213 is fixed in the box body in a horizontal attitude, so that the lubricating oil in the oil collecting tank 120 can flow relatively uniformly to the side oil conveying grooves 1241; the second plate body 1214 is opposite to the first plate body 1213 is inclined and arranged to elevate the second side 1212 to achieve more lubricating oil collection effect.
- a plurality of oil guide plates 125 are also provided on the bottom plate 121 (see also FIG. 14 and FIG. 10 synchronously), and the plurality of oil guide plates 125 are protruded on the bottom plate 121 at intervals, and many oil guide plates 125 are provided on the bottom plate 121.
- the block oil guide plate 125 divides the inner space of the oil collecting tank 120 into a plurality of oil collecting areas 126 .
- Some of the oil collecting areas 126 are also respectively connected to different parts of the side plate 122, and the side plate 122 has a gap 1225 corresponding to each oil collecting area at the position connected to each oil collecting area 126;
- the areas 126 are respectively connected to different vertical oil grooves 1244 on the bottom plate 121 .
- FIG. 20 For ease of expression, only part of the oil collecting areas 126 are shown in FIG. 20 . In fact, there are more oil collecting areas 126 in FIG. 20 , and each oil conveying groove 124 is connected to one oil collecting area 126 respectively.
- each notch 1225 of the side plate 122 is connected to a lateral oil conveying groove 1241, so part of the oil collecting areas 126 connected to the side plate 122 is actually connected to a lateral oil conveying groove 1241, while the rest of the oil collecting areas Oil field 126 communicates to vertical oil sump 1244 .
- Each oil collecting area 126 divided by the oil guide plate 125 is connected to one oil conveying groove 124 respectively, that is, each oil conveying groove 124 is used to convey the lubricating oil in one oil collecting area 126 to its corresponding oil supply to be supplied part.
- each oil collecting area 126 can be adjusted, and on the premise that the lubricating oil level in the oil collecting tank 120 tends to be the same, the larger the area is.
- the amount of lubricating oil carried by the oil collecting area 126 is larger, and the flow rate of the lubricating oil conveyed by the oil conveying groove 124 connected to the oil collecting area 126 is correspondingly increased.
- the oil quantity of the lubricating oil required by each part to be lubricated may be different. In some parts to be lubricated with a larger meshing area of the gears, more lubricating oil may be required for lubrication.
- the inner space of the oil collecting tank 120 is divided by the oil guide plate 125 to form the oil collecting areas 126 of different sizes, which can distribute the lubricating oil according to the needs of each part to be lubricated, and further improve the oil supply 100 to the gear set 210. Lubrication effect.
- each of the plurality of oil guide plates 125 is provided with a straight section 1251 , and the straight sections 1251 of the plurality of oil guide plates 125 all extend to the bottom plate 121 near the second side 1212 , and the plurality of straight sections 1251 are The segments 1251 are parallel to each other and at regular intervals.
- the straight sections 1251 of the plurality of oil guide plates 125 are fixed at the second side 1212 in parallel and spaced apart from each other, so that a plurality of channels for guiding the flow of lubricating oil can be formed on the second side 1212 of the bottom plate 121 .
- each channel is connected to an oil collecting area 126, that is, a plurality of mutually parallel and fixedly spaced straight sections 1251 realize the diversion of the lubricating oil at the second side 1212, and allow the lubricating oil to enter from this side
- the lubricating oil of the sump 120 can be drained into the various sump areas 126 .
- the lubricating oil sent by the first gear 211 into the oil collecting tank 120 through the oil stirring channel 250 needs to pass over the side plate 122 at the first side 1211 and then fall into the oil collecting tank 120 . Therefore, the lubricating oil collected in the oil collecting sump 120 mostly enters the oil collecting sump 120 from a position close to the second side 1212 .
- the straight sections 1251 are arranged on each oil guide plate 125, and each straight section 1251 is extended to a position close to the second side 1212, which is beneficial to realize the diversion of the lubricating oil when most of the lubricating oil enters the oil collecting tank 120, The divided lubricating oil is guided into each oil collecting area 126 .
- the diverting area of each channel can also be adjusted correspondingly, so that the lubricating oil entering the oil collecting tank 120 on the second side 1212 can be realized.
- the distribution of the oil quantity can also meet the different lubricating oil quantity requirements of the parts to be lubricated in the gear set 210 .
- the straight section 1251 may also extend toward the second side plate 1222 or the third side plate 1223 , and the second side plate 1222 is close to the first gear 211 side, or the third side
- the side of the plate 1223 close to the first gear 211 also forms an oil separation channel (see FIG. 18 ), so as to realize the distribution effect of the amount of lubricating oil while the first side plate 1221 or the third side plate 1223 intercepts the lubricating oil.
- Such an embodiment can further strengthen the oil guide plate 125 to guide the flow of lubricating oil in the oil collecting tank 120, and ensure that the lubricating oil collected in each oil collecting area 126 meets the working requirements of the corresponding parts to be lubricated.
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Abstract
Description
Claims (15)
- 一种变速箱,其特征在于,包括具有内腔的箱体,以及收容于所述箱体内的齿轮组和供油器;所述内腔底部设有承载润滑油的储油池;所述供油器固定于所述齿轮组背离所述储油池一侧,所述供油器包括固定连接的密封仓和集油槽,所述集油槽位于所述密封仓的上方;所述密封仓设有进油口以及至少一路喷油管,所述至少一路喷油管朝向不同的方向延伸;所述密封仓用于接收从所述进油口送入的所述储油池中的润滑油,并经所述至少一路喷油管朝向所述齿轮组的至少一个待润滑部位喷射润滑油;所述集油槽具有上部开口,所述集油槽用于在所述齿轮组转动时,通过所述上部开口接收所述齿轮组搅动送入的所述储油池中的润滑油,所述集油槽还设有至少一路输油槽,所述输油槽的数量与所述喷油管的数量相同,任一路所述输油槽均对应于其中一路所述喷油管设置,用于与对应的所述喷油管润滑同一所述待润滑部位。
- 如权利要求1所述的变速箱,其特征在于,所述齿轮组包括相互啮合的第一齿轮和第二齿轮,且所述第一齿轮和所述第二齿轮分别与所述箱体转动连接;所述第一齿轮的底部位于所述储油池内并浸没于润滑油中,所述第一齿轮背离所述第二齿轮一侧由下至上转动,并与所述箱体的内壁相互间隔以形成搅油通道,所述第一齿轮转动时,可带动所述储油池中的润滑油经所述搅油通道进入所述集油槽。
- 如权利要求2所述的变速箱,其特征在于,所述供油器设置于所述第一齿轮靠近所述第二齿轮一侧,所述箱体的所述内壁包括第一侧壁和顶壁,所述第一侧壁位于所述第一齿轮背离所述第二齿轮一侧,所述顶壁位于所述第一侧壁之上,所述第一侧壁和所述顶壁共同与第一齿轮形成搅油通道。
- 如权利要求2或3所述的变速箱,其特征在于,所述储油池中润滑油的液面高度与所述第一齿轮回转中心的距离,小于或等于所述第一齿轮的齿根圆半径。
- 如权利要求2-4任一项所述的变速箱,其特征在于,所述变速箱还包括输油组件,所述输油组件包括输油管路和输油泵,所述输油管路的一端连通至所述供油器的所述进油口,另一端连通至所述储油池,所述输油泵用于将所述储油池中的润滑油通过所述输油管路泵入所述密封仓。
- 如权利要求2-5任一项所述的变速箱,其特征在于,所述第一齿轮与所述第二齿轮在第一啮合位处相互啮合,所述至少一个待润滑部位包括所述第一啮合位。
- 如权利要求2-6任一项所述的变速箱,其特征在于,所述齿轮组还包括第一齿轮轴、第二齿轮轴、第一轴承和第二轴承,所述第一齿轮轴与所述第一齿轮固定连接,所述第二齿轮轴与所述第二齿轮固定连接,所述第一轴承用于实现所述第一齿轮轴与所述箱体的转动连接,所述第二轴承用于实现所述第二齿轮轴与所述箱体的转动连接,所述待润滑部位还包括所述第一轴承的位置和所述第二轴承的位置。
- 如权利要求2-7任一项所述的变速箱,其特征在于,所述侧板包括靠近所述第一齿轮的第一侧板,以及与所述第一侧板相对置的第二侧板,所述第一侧板距离所述底板具有 第一高度,所述第二侧板距离所述底板具有第二高度,且所述第一高度低于所述第二高度。
- 如权利要求1-8任一项所述的变速箱,其特征在于,所述至少一路喷油管包括侧向喷油管,所述侧向喷油管沿水平方向且沿背离所述密封仓的方向延伸;所述至少一路输油槽包括侧向输油槽,所述侧板上开设有连通所述侧向输油槽的缺口,所述侧向输油槽的延伸方向与对应的所述侧向喷油管的延伸方向相同,并位于对应的所述侧向喷油管的上方。
- 如权利要求1-9任一项所述的变速箱,其特征在于,所述至少一路喷油管包括竖向喷油管,所述竖向喷油管沿竖直方向向背离所述密封仓的方向延伸;所述至少一路输油槽包括竖向输油槽,所述竖向输油槽与所述集油槽的所述底板固定连接,且构造为贯穿所述密封仓的通槽,所述竖向输油槽的延伸方向与对应的所述竖向喷油管的延伸方向相同,并位于对应的所述竖向喷油管的一侧。
- 如权利要求1-10任一项所述的变速箱,其特征在于,所述至少一路输油槽的数量为多路,所述底板上还设有至少一块导油板,所述至少一块导油板将所述集油槽的内部空间划分为至少两个集油区,所述集油区的数量与所述输油槽的数量相同,且每一路所述输油槽连通一个所述集油区。
- 一种汽车动力总成,其特征在于,包括电机和如权利要求1-11任一项所述的变速箱,所述电机与所述变速箱固定连接,且所述电机用于驱动所述变速箱中的所述齿轮组转动。
- 如权利要求12所述的汽车动力总成,其特征在于,所述汽车动力总成还设有冷却系统,所述冷却系统用于将所述储油池中的润滑油输送至所述电机中,以对所述电机进行冷却降温。
- 如权利要求13所述的汽车动力总成,其特征在于,所述冷却系统包括进油管、回油管和换热器,所述进油管和所述回油管均连通于所述储油池和所述电机之间,润滑油从所述进油管流入所述电机中完成冷却降温后,经所述回油管流回所述储油池中;所述换热器串联于所述进油管或所述回油管上,用于对润滑油冷却降温。
- 一种汽车,其特征在于,所述汽车包括车轮和如权利要求12-14任一项所述汽车动力总成,所述汽车动力总成用于驱动所述车轮转动。
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| CN202511327288.8A CN121111966A (zh) | 2020-11-27 | 2020-11-27 | 变速箱、汽车动力总成及汽车 |
| EP25160836.0A EP4632251A1 (en) | 2020-11-27 | 2020-11-27 | Transmission, vehicle powertrain, and vehicle |
| CN202080006846.XA CN114829805B (zh) | 2020-11-27 | 2020-11-27 | 变速箱、汽车动力总成及汽车 |
| EP20962950.0A EP4249774B1 (en) | 2020-11-27 | 2020-11-27 | Transmission, vehicle power assembly, and vehicle |
| PCT/CN2020/132435 WO2022110060A1 (zh) | 2020-11-27 | 2020-11-27 | 变速箱、汽车动力总成及汽车 |
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| PCT/CN2020/132435 WO2022110060A1 (zh) | 2020-11-27 | 2020-11-27 | 变速箱、汽车动力总成及汽车 |
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| EP (2) | EP4249774B1 (zh) |
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| JP7816193B2 (ja) | 2023-01-20 | 2026-02-18 | トヨタ自動車株式会社 | 動力伝達装置とそれを備える動力ユニット |
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| CN117239977B (zh) * | 2023-11-14 | 2024-03-26 | 广汽埃安新能源汽车股份有限公司 | 电驱系统壳体和电驱系统 |
| CN121013951A (zh) * | 2023-11-30 | 2025-11-25 | 华为数字能源技术有限公司 | 双路油冷润滑的动力总成及电动车 |
| FR3156869A1 (fr) * | 2023-12-18 | 2025-06-20 | Valeo Embrayages | Mécanisme de transmission à lubrification interne et ensemble de propulsion électrique associé |
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| CN115614460A (zh) * | 2022-10-27 | 2023-01-17 | 东风汽车集团股份有限公司 | 一种变速箱和车辆 |
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| DE102024125759B3 (de) * | 2024-09-09 | 2025-08-28 | Magna powertrain gmbh & co kg | Elektrischer Traktionsantrieb mit speziell ausgebildetem Ölreservoir und Verfahren zum Betrieb eines elektrischen Traktionssystems |
| CN119594172A (zh) * | 2024-12-03 | 2025-03-11 | 一汽解放汽车有限公司 | 变速器润滑结构及车辆 |
| CN120720390A (zh) * | 2025-08-26 | 2025-09-30 | 成都鑫泽机械有限公司 | 一种减速器轴承自动润滑系统、减速器和抽油机 |
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| EP4249774A4 (en) | 2024-02-07 |
| CN121111966A (zh) | 2025-12-12 |
| EP4632251A1 (en) | 2025-10-15 |
| EP4249774A1 (en) | 2023-09-27 |
| CN114829805A (zh) | 2022-07-29 |
| EP4249774B1 (en) | 2025-04-02 |
| CN114829805B (zh) | 2025-10-03 |
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