WO2019062864A1 - Ensemble d'essieu d'entraînement de direction intégré et véhicule - Google Patents

Ensemble d'essieu d'entraînement de direction intégré et véhicule Download PDF

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Publication number
WO2019062864A1
WO2019062864A1 PCT/CN2018/108364 CN2018108364W WO2019062864A1 WO 2019062864 A1 WO2019062864 A1 WO 2019062864A1 CN 2018108364 W CN2018108364 W CN 2018108364W WO 2019062864 A1 WO2019062864 A1 WO 2019062864A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
axle
shaft
gear
steering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/108364
Other languages
English (en)
Chinese (zh)
Inventor
刘辉跃
刘广
韦佳
李双喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2019062864A1 publication Critical patent/WO2019062864A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • 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
    • 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
    • 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
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
    • 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
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/18—Steering knuckles; King pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/20—Links, e.g. track rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/22—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system

Definitions

  • the present disclosure relates to the field of vehicle technology, and in particular, to an integrated steering axle assembly and a vehicle.
  • the drive axle assembly belongs to a general fuel drive axle assembly, and the power source of the axle is the fuel power provided by the engine, and the power needs to pass through a power transmission structure of a transmission shaft, a universal joint, etc., which reduces the mechanical transmission.
  • Efficiency is not conducive to the economic efficiency of energy use.
  • the present disclosure aims to solve at least one of the technical problems in the related art to some extent.
  • an object of the present disclosure is to provide an integrated steering axle assembly that can effectively improve the energy efficiency of the vehicle and reduce the loss of power during transmission.
  • Another object of the present disclosure is to provide a vehicle having the above-described integrated steering axle assembly.
  • An integrated steering axle assembly includes: a transaxle; an electric powertrain including: a motor and a transmission, the electric machine having a motor output, the transmission having a transmission input and a transmission output, the motor output being coupled to the transmission input; a differential, a left axle and a right axle, the outer casing of the differential being coupled to the transmission output, and the differential Connected to the left and right halves respectively; a steering assembly, wherein the electric power assembly, the differential, and the steering assembly are all integrated on the transaxle.
  • the differential is disposed inside the axle housing section 111 and cannot be shown. In Fig. 1, the differential is located between the axle housing rear cover 114 and the motor 120)
  • the integrated steering axle assembly of the present disclosure by integrating components such as an electric power assembly and a differential on the transaxle, the loss of power during transmission can be greatly reduced, and the energy utilization rate of the vehicle is improved. This in turn reduces the cost of using the vehicle.
  • the transaxle includes: a middle portion of the axle housing and a left axle housing and a right axle housing fork on the left and right sides of the middle portion of the axle housing.
  • the middle portion of the axle housing includes: an upper half axle shell and a lower half axle shell, the upper half axle shell and the lower half axle shell are both stamped parts, and the upper half axle shell And the lower half axle shell is welded and fixed.
  • the front side of the middle portion of the axle housing is welded and fixed with a front pad
  • the rear side of the middle portion of the axle housing is welded and fixed with a rear pad
  • the front pad is adapted to fix the electric power
  • the rear pad is adapted to fix the axle housing back cover.
  • the electric power assembly further includes: an electric oil pump for the electric oil pump that cools the motor.
  • the electric power assembly further includes: a case adapted to mount the motor and the transmission.
  • the motor output is a motor output shaft
  • the transmission input is a gearbox input shaft
  • the motor output shaft and the transmission input shaft are splined.
  • the transmission input shaft is rotatably mounted on the case.
  • the transmission input shaft is provided with a first transmission gear;
  • the transmission further includes: a first transmission shaft and a second transmission shaft, and the second transmission shaft is fixedly disposed on the first transmission shaft a gear and a plurality of spaced apart third transmission gears, the second transmission gear meshing with the first transmission gear, and the second transmission shaft is provided with a plurality of spaced apart fourth transmission gears, a plurality of The fourth transmission gear is in one-to-one correspondence with the plurality of the third transmission gears and meshes with each other, and the second transmission shaft is further provided with a synchronizer for synchronously rotating the fourth transmission gear and the second transmission shaft.
  • the second transmission shaft is provided with a fifth transmission gear
  • the differential is provided with a sixth transmission gear
  • the sixth transmission gear meshes with the fifth transmission gear
  • the first transmission gear, the second transmission gear, the third transmission gear, the fourth transmission gear, the fifth transmission gear, and the sixth transmission gear are both It is a helical gear.
  • the integrated steering axle assembly further includes: a wheel reducer, the wheel reducer is two, and one of the wheel reducers is adapted to be connected to the left A half axle and a left side hub, wherein the other wheel side reducer is adapted to connect the right and right side hubs.
  • the wheel reducer includes: a sun gear adapted to cooperate with the left half shaft or the right half shaft; a ring gear, the ring gear and the sun gear pass The planet wheels are connected and the ring gear is fixed to the hub.
  • the steering assembly includes:
  • a left wheel yoke and a right wheel yoke the left wheel yoke being rotatably disposed on the left axle yoke, the right wheel yoke being rotatably disposed on the right axle yoke on;
  • a left knuckle arm and a right knuckle arm fixedly disposed on an upper side of the left knuckle yoke, the right knuckle arm being fixedly disposed on an upper side of the right knuckle yoke;
  • the left steering trapezoidal arm is fixedly disposed on a lower side of the left wheel yoke
  • the right steering trapezoidal arm is fixedly disposed at a lower side of the right steering yoke
  • the vehicle according to the present disclosure includes the above-described integrated steering axle assembly, and since the vehicle according to the present disclosure is provided with the above-described integrated steering axle assembly, the energy consumption and the use cost of the vehicle are low, and the use of the occupant is improved. Feel.
  • FIG. 1 is a schematic view of a transaxle assembly in accordance with an embodiment of the present disclosure
  • FIG. 2 is a schematic illustration of a transaxle assembly in accordance with an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an electric powertrain assembly in accordance with an embodiment of the present disclosure.
  • FIG. 4 is a schematic view of a drive axle mating with a steering assembly in accordance with an embodiment of the present disclosure
  • FIG. 5 is a schematic view of a transaxle mating with a steering assembly in accordance with an embodiment of the present disclosure
  • FIG. 6 is a schematic view of a wheel reducer in accordance with an embodiment of the present disclosure.
  • FIG. 7 is a cross-sectional view of a steering assembly in accordance with an embodiment of the present disclosure.
  • Figure 8 is a schematic illustration of a brake assembly in accordance with one embodiment of the present disclosure.
  • FIG. 9 is a cross-sectional view of a wheel reducer in accordance with an embodiment of the present disclosure.
  • Figure 10 is a schematic illustration of a transmission in accordance with one embodiment of the present disclosure.
  • FIG. 11 is an exploded view of a wheel reducer in accordance with an embodiment of the present disclosure.
  • Figure 12 is a schematic illustration of a vehicle in accordance with one embodiment of the present disclosure.
  • axle housing middle section 111 upper half axle housing 111a, lower half axle housing 111b, front pad 111c, rear pad 111d, left axle housing fork 112, right axle housing fork 113, axle housing rear cover 114 ,
  • Electric oil pump 140 housing 150,
  • Steering assembly 180 left wheel yoke 181, right wheel yoke 182, left knuckle arm 183, right knuckle arm 184, left steering trapezoidal arm 185, right steering trapezoidal arm 186, left half shaft sleeve 187, right Half shaft sleeve 188,
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed”, and the like, are to be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated or defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. The specific meanings of the above terms in the present disclosure can be understood by those skilled in the art on a case-by-case basis.
  • An integrated box drive axle assembly 100 of some embodiments of the present disclosure is described in detail below with respect to Figures 1-11.
  • the integrated box drive axle assembly 100 in accordance with the present disclosure includes a drive axle 110, an electric powertrain, a differential 161, a left axle half 162, and a right axle axle 163.
  • the transaxle 110 is disposed at the end of the force transmission system, and the torque output by the electric power assembly can be transmitted to the driving wheel.
  • the electric power assembly includes the motor 120 and the transmission 130.
  • the motor 120 has a motor output end
  • the transmission 130 has The transmission input end and the transmission output end are connected to the transmission input end
  • the outer casing of the differential 161 is connected to the transmission output end
  • the differential 161 is respectively connected to the left half shaft 162 and the right half shaft 163, wherein the electric power
  • the assembly and differential 161 are all integrated on the transaxle 110.
  • the differential is disposed inside the axle housing midsection 111, as in Fig. 1 the differential is located between the axle housing back cover 114 and the motor 120.
  • the motor 120 can be connected to the battery to convert electrical energy into mechanical energy, the motor output can output torque, the motor output transmits torque to the transmission input, and the transmission 130 transmits torque through the gears.
  • the torque is increased, the speed is reduced, and the torque is transmitted to the differential 161 through the transmission output, and the differential 161 transmits the torque to the left and right axles 163, 162, respectively.
  • the right half shaft 163 transmits torque to the wheels to rotate the wheels to advance or retreat the wheels.
  • the electric power assembly and the differential 161 are both integrated on the transaxle 110, and the electric power assembly and the differential 161 assembly are fixed together, and can be fixed on the transaxle 110 by a fixing device, through the gear of the electric power assembly. Directly connected to the differential 161, the power loss during the force transmission process is reduced, and the dynamic performance of the vehicle 10 is effectively improved.
  • the electric powertrain and the differential 161 are integrated on the transaxle 110, the transmission assembly is reduced in the force transmission structure, and the electric powertrain and the transaxle 110 are The transmission efficiency between the two is higher, and the weight of the whole vehicle is effectively reduced, and the performance of the whole vehicle is improved while saving the cost.
  • the transaxle 110 includes a left axle housing yoke 112 and a right axle housing yoke 113 on the left and right sides of the axle housing midsection 111 and the axle housing middle section 111.
  • the left axle housing section fork 112 is disposed at the left end of the axle housing middle section 111
  • the right axle housing section fork 113 is disposed at the right end of the axle housing middle section 111
  • the left axle housing section fork 112 and the right axle housing The joint between the fork 113 and the middle portion 111 of the axle housing is provided with a groove, a washer is arranged in the groove, the washer and the middle portion 111 of the axle shell are fixed by welding, and the washer at the left end is respectively connected with the middle portion 111 of the axle shell and the fork portion 112 of the left axle housing.
  • the right end washers are respectively matched with the axle housing middle section 111 and the right axle housing yoke 113, and the gasket is arranged to improve the connection strength between the left axle housing yoke 112 and the right axle housing yoke 113, and the entire process is adjusted to enhance the whole
  • the structural strength of the drive axle 110 helps to increase the load of the transaxle 110, and the left axle housing fork 112 and the right axle housing fork 113 are disposed on both sides of the axle housing mid section 111 to facilitate the rotation of other assemblies.
  • the efficiency of mounting the transaxle 110 can be improved during the final assembly process.
  • the axle housing midsection 111 includes an upper half axle housing 111a and a lower half axle housing 111b, the upper half axle housing 111a and the lower half axle housing 111b are stamped and the upper half axle housing 111a and the lower half axle The shell 111b welder is fixed.
  • the upper half axle shell 111a and the lower half axle shell 111b may be formed by stamping steel sheets. Since the upper half axle shell 111a and the lower half axle shell 111b are symmetrically arranged, they have the same structure, and the same mold can be used in the stamping process to reduce development. Cost, and by the stamped axle housing, the weight of the axle shell is lower than that of the cast cast axle shell with the same strength, and the upper half axle shell 111a and the lower half axle shell 111b are fixed by welding so that the entire axle shell mid section 111 The strength fully satisfies the strength requirements of the vehicle 10 for the transaxle 110.
  • a front pad 111c is welded and fixed on the front side of the intermediate portion 111 of the axle housing, and a rear pad 111d is welded to the rear side of the middle portion 111 of the axle housing, and the front pad 111c is adapted to fix the total electric power.
  • the rear pad 111d is adapted to fix the axle housing back cover 114.
  • an installation space for connecting the electric power assembly to the left half shaft 162 and the right half shaft 163 is reserved at the intermediate position, and the front pad 111c may be configured as a ring. And the front pad 111c is provided with a threaded hole for connecting the electric power assembly.
  • the outer casing of the electric power assembly is in contact with the front pad 111c, and is passed through the bolt
  • the housing of the electric power assembly is fixed on the front pad 111c to stabilize the connection between the electric power assembly and the transaxle 110, and the front pad 111c can improve the mounting stability of the electric power assembly, so that the electric power The assembly is more securely installed.
  • the installation space formed by the upper half axle shell 111a and the lower half axle shell 111b may be connected and closed to the electric power assembly, as shown in the figure.
  • the other side of the installation space may be exposed to the operator's field of view when the axle housing back cover 114 is not installed, and the electric power assembly and the transaxle 110 may be disposed from the side of the axle housing rear cover 114 from the side of the assembly.
  • the rear pad 111d extends rearward, and the rear pad 111d is provided with a threaded hole, and the axle housing rear cover 114 is correspondingly provided with a threaded hole, and the axle housing rear cover 114 can be fixed on the rear pad 111d.
  • the axle housing rear cover 114 will close the middle portion 111 of the axle housing to seal the connection between the electric power assembly and the transaxle 110 to protect the transmission assembly between the electric power assembly and the transaxle 110.
  • the electric power assembly further includes an electric oil pump 140 for cooling the electric motor 120, and a cooling water passage for cooling liquid circulation may be disposed on the outer casing of the electric motor 120, and the cooling water passage has a cooling water passage opening and a cooling water passage.
  • an electric oil pump 140 is further disposed on the casing of the motor 120, and the electric oil pump 140 is used to power the flow of the coolant.
  • a cooling oil may be employed as the cooling liquid, and the electric oil pump 140 may be connected to the battery, and the battery may provide a voltage required for the electric oil pump 140 to operate.
  • the electric power assembly further includes a case 150 adapted to mount the motor 120 and the transmission 130, and the case 150 provides mounting controls for the installation of the motor 120 and the transmission 130, and can be used To protect the motor 120 and the transmission 130, the motor 120 and the transmission 130 can be better coupled to other components via the housing 150.
  • the motor output end is the motor 120 output shaft
  • the transmission input end is the transmission input shaft
  • the motor 120 output shaft and the transmission input shaft 131 are spline-connected, and the power output from the output shaft of the electric motor is transmitted to the transmission through the spline.
  • the input shaft 131 makes the transfer process between the engine and the transmission 130 simple, and the torque that can be transmitted is larger, and the spline makes the connection manner of the output shaft of the motor 120 and the transmission input shaft 131 stable and reliable, and the vehicle 10 is reinforced.
  • the integration rate enables more efficient production of the integrated steering axle assembly 100 in the production process.
  • the spline on the output shaft of the motor 120 can be provided with an internal spline, and the transmission input shaft 131 can be provided with an external spline.
  • the internal spline and the external spline can improve the stability of the electric power assembly.
  • the transmission input shaft 131 is rotatably mounted on the casing 150, and the transmission input shaft 131 is fixed relative to the casing 150.
  • the casing 150 may be provided with a needle bearing adapted to mount the transmission input shaft 131, and the rolling bearing The axis of the transmission input shaft 131 can be fixed and the transmission input shaft 131 can be rotated on the needle bearing to transmit torque to the other gear and force transmitting components.
  • the transmission input shaft 131 is provided with a first transmission gear 131a.
  • the transmission 130 further includes a first transmission shaft 132 and a second transmission shaft 133.
  • the first transmission shaft 132 is fixedly disposed with a second transmission gear 132a and a plurality of spaced apart portions.
  • the third transmission gear 132b, the second transmission gear 132a is meshed with the first transmission gear 131a, and the second transmission shaft 133 is provided with a plurality of spaced apart fourth transmission gears 133a, a plurality of fourth transmission gears 133a and a plurality of third transmissions
  • the gears 132b are in one-to-one correspondence and mesh with each other, and the second transmission shaft 133 is further provided with a synchronizer 133c for rotating the fourth transmission gear 133a and the second transmission shaft 133 in synchronization.
  • the first transmission gear 131a meshes with the second transmission gear 132a to transmit torque from the transmission input shaft 131 to the first transmission shaft 132, and the torque on the first transmission shaft 132 can pass through the third transmission gear 132b and the fourth transmission gear.
  • the engagement of 133a is transmitted, the radii of the plurality of third transfer gears 132b on the first drive shaft 132 are different, and the radii of the plurality of fourth transfer gears 133a on the second drive shaft 133 are different to achieve different gear ratios.
  • the synchronizer 133c can fix any one of the fourth transmission gears 133a and the second transmission shaft 133 to transmit the torque to the second transmission shaft 133 through the first transmission shaft, wherein the transmission process can be from the first transmission shaft.
  • the transmission to any of the third transmission gears 132b to the corresponding fourth transmission gears 133a is again transmitted to the second transmission shaft 133 through the synchronizer 133c.
  • the transmission 130 has a plurality of different transmission ratios, which can satisfy the different torques and rotational speeds of the vehicle 10.
  • a fifth transmission gear 133b is disposed on the second transmission shaft 133
  • a sixth transmission gear 161a is disposed on the differential 161
  • the sixth transmission gear 161a is meshed with the fifth transmission gear 133b.
  • the second transmission shaft 133 fixes any one of the fourth transmission gears 133a by the synchronizer 133c to obtain a corresponding torque
  • the fifth transmission gear 133b is fixed to the second transmission shaft 133
  • the fifth transmission gear transmits the torque to the sixth.
  • the transmission gear 161a that is, the torque after shifting through the transmission 130, is transmitted to the differential 161
  • the engagement between the fifth transmission gear 133b and the sixth transmission gear 161a reduces the relationship between the transmission 130 and the differential 161.
  • the force transmission component avoids the loss of power during the transmission process, further reduces the weight of the integrated steering axle assembly 100, can reduce the weight of the whole vehicle, and saves the cost and improves the dynamic performance of the vehicle 10.
  • the first transmission gear 131a, the second transmission gear 132a, the third transmission gear 132b, the fourth transmission gear 133a, the fifth transmission gear 133b, and the sixth transmission gear 161a are all helical gears, and the helical gears can be integrated.
  • the steering axle assembly 100 has better meshing performance, and the helical gear can make the transmission smooth and the noise is small, and the helical gear has a large carrying capacity and a long service life compared with the ordinary gear.
  • the integrated steering axle assembly 100 further includes a wheel reducer 170 having two wheel reducers 170, one of which is adapted to connect the left axle 162 and the left side a hub, wherein the other wheel reducer 170 is adapted to connect the right half shaft 163 and the right side hub, and the wheel reducer 170 can reduce the rotational speed of the left half shaft 162 or the right half shaft 163 and increase the torque to make the speed reducer The connected wheels have sufficient torque.
  • the wheel reducer 170 includes a sun gear 171 and a ring gear 174, the sun gear 171 is adapted to cooperate with the left half shaft 162 or the right half shaft 163, and the ring gear 174 is coupled to the sun gear 171 via the planet gear 172, the ring gear 174 Fixed to the hub.
  • the sun gear 171 transmits power from the left half shaft 162 or the right half shaft 163 to the plurality of planet gears 172, the planetary gears 172 mesh with the ring gear 174, and the plurality of planet wheels 172 can be rotatably disposed on the planets through the needle bearings
  • the carrier 173 can be fixed on the transaxle 110, and the planetary gear 172 transmits power to the ring gear 174.
  • the outer side of the ring gear 174 is provided with a reducer housing, and the reducer housing is fixed on the hub, so that the power can be transmitted.
  • the reducer housing has a lower rotational speed relative to the left half shaft 162 or the right half shaft 163 and a higher torque.
  • the wheel reducer 170 may have a wheel reducer housing 175, and the wheel reducer housing 175 may be coupled to the ring gear 174 by bolts.
  • the ring gear 174 may be loosened by a lock washer, and the wheel reducer housing 175 may be
  • the hub is connected by bolts, and the torque is transmitted from the electric powertrain through the transaxle 110, the left half shaft 162 or the right half shaft 163, and the wheel reducer 170 to the hub, so that the wheel has a forward driving torque.
  • the integrated steering axle assembly 100 further includes a steering assembly 180 that includes a left wheel yoke 181 and a right wheel yoke 182, a left knuckle arm 183 and a right knuckle Arm 184, left half shaft sleeve 187 and right half shaft sleeve 188.
  • the left wheel yoke 181 is rotatably disposed on the left axle housing yoke 112, and the right wheel yoke 182 is rotatably disposed on the right axle housing yoke 113; the left knuckle arm 183 is fixedly disposed on the left wheel yoke 181 Upper right knuckle arm 184 is fixedly disposed on right knuckle fork; left half shaft sleeve 187 is fixed on left wheel yoke 181, and right half shaft sleeve 188 is fixed on right wheel yoke 182, left half shaft The 162 and right half shafts 163 are rotatably disposed on the left and right side sleeves 187, 188, respectively.
  • the left wheel yoke 181 is disposed on the left side of the transaxle 110, and the left wheel yoke 181 is rotatable relative to the transaxle 110, and the upper side of the left rim 181 is provided with a left knuckle arm 183 for The steering rod is connected, and the steering rod can transmit the power of the steering to the left wheel yoke 181 to rotate the left wheel yoke 181.
  • the lower side of the left wheel yoke 181 is provided with a left steering trapezoidal arm 185, and the left steering trapezoidal arm 185 can be Connected to the tie rod to synchronize the left steering fork with the right steering fork.
  • the upper side of the left knuckle arm 183 may be provided with a fixing block for reinforcing the connection portion of the left knuckle arm 186 and the steering rod, and adding the strength of the left knuckle arm 183 to improve the steering of the wheel. sexually, the life of the left knuckle arm 183 is effectively extended.
  • the right knuckle arm 184 of the right side of the transaxle 110 is fixed in a manner similar to the above-described fixing.
  • the end of the left half shaft sleeve 187 may be provided with a spline, and the left half shaft sleeve 187 may be coupled to the sun gear on the wheel reducer 170 by splines to transmit the torque from the left half shaft 162 to the wheel side. Reducer 170.
  • the fixing manner of the right half shaft sleeve 188 is similar to the above fixing manner, and details are not described herein again.
  • the right wheel yoke 182 is disposed on the right side of the transaxle 110, and the right wheel yoke 182 is rotatable relative to the transaxle 110, and the upper side of the right wheel yoke 182 is provided with a right knuckle arm 184 for
  • the steering rod is connected, and the steering rod can transmit the power of the steering to the right wheel yoke 182 to rotate the right wheel yoke 182.
  • the lower side of the right wheel yoke 182 is provided with a right steering trapezoidal arm 186 and a right steering trapezoid
  • the arm 186 can be coupled to the tie rod to synchronize the right steering fork with the left steering fork.
  • the transaxle 110 is mainly welded, and the middle portion 111 of the axle housing is mainly an upper half axle shell 111a stamped by two steel plates, and the lower half axle shell 111b is first welded, the front gasket 111c The rear pad 111d and the four leaf spring mounting limiting seats are also welded and fixed on the middle portion 111 of the axle housing.
  • the middle portion 111 of the axle housing using the steel plate stamping and welding structure is much lighter than the cast axle housing.
  • the joint between the left axle shell fork 112 and the right axle shell fork 113 and the middle portion 111 of the axle shell is over-tilted, and is welded through the middle washer and the middle portion 111 of the axle shell.
  • This welding method has high strength and good rigidity after welding. Can withstand large loads.
  • the left half shaft 162 and the right half shaft 163 pass through the needle bearing, the rim for the hole, and the two rubber oil seals respectively mounted on the left axle housing yoke 112 and the right axle housing yoke 113, thereby the left half shaft 162.
  • the right half shaft 163 is fixed to the left axle housing fork 112 and the right axle housing fork 113 for support, and the sealing performance is good.
  • the upper and lower sides of the left axle housing fork 112 and the right axle housing fork 113 are press-fitted with an upper kingpin, a lower kingpin, and an upper kingpin that are interference-fitted with the left axle housing fork 112 and the right axle housing fork 113.
  • the sleeve is placed over the copper sleeve and the upper sleeve is passed through the copper sleeve, the thrust roller bearing and the combined oil seal.
  • the left wheel yoke 181 and the right wheel yoke 182 are respectively fixed up and down by bolts, and a plurality of long bolts may be respectively passed through the left knuckle arm 183 and the right knuckle arm 184, the fixed block and the left wheel yoke 181 or right.
  • the wheel yoke 182 reinforces the unitary structure, and the lower side may employ a plurality of bolts through the left turn trapezoidal arm 185 and the right turn trapezoidal arm 186 to secure it to the left and right wheel yokes 181, 182.
  • FIG. 12 is a schematic illustration of a vehicle in accordance with one embodiment of the present disclosure.
  • the vehicle 10 includes an integrated steering axle assembly 100.
  • the integrated steering axle assembly 100 can be referred to the drawings and descriptions of FIGS. 1 to 11 . To avoid repetition, details are not described herein again.
  • An integrated steering axle assembly 100 according to the present disclosure is provided on a vehicle according to the present disclosure, since the integrated steering axle assembly 100 according to the present disclosure is provided on a vehicle according to the present disclosure, the vehicle weight of the vehicle Light, high transmission efficiency and high degree of integration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne un ensemble d'essieu d'entraînement de direction intégré (100), comprenant : un axe d'entraînement (110); un ensemble d'alimentation électrique, l'ensemble d'alimentation électrique comprenant : un moteur (120) et une transmission (130), le moteur (120) ayant une extrémité de sortie de moteur, la transmission (130) ayant une extrémité d'entrée de transmission et une extrémité de sortie de transmission, l'extrémité de sortie de moteur étant reliée à l'extrémité d'entrée de transmission; un différentiel (161), un demi-arbre gauche (162) et un demi-arbre droit (163), un boîtier du différentiel (161) étant relié à l'extrémité de sortie de transmission, le différentiel (161) étant relié au demi-arbre gauche (162) et au demi-arbre droit (163); l'ensemble d'alimentation électrique et le différentiel (161) étant tous deux intégrés sur l'axe d'entraînement. L'invention concerne également un véhicule équipé de l'ensemble d'essieu d'entraînement de direction intégré (100). L'utilisation de l'ensemble d'essieu d'entraînement de direction intégré permet d'obtenir une faible consommation d'énergie et un faible coût d'utilisation du véhicule, et améliore l'expérience d'utilisation des passagers.
PCT/CN2018/108364 2017-09-30 2018-09-28 Ensemble d'essieu d'entraînement de direction intégré et véhicule Ceased WO2019062864A1 (fr)

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CN201710922697.1A CN109591514A (zh) 2017-09-30 2017-09-30 集成式转向驱动桥总成和车辆

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CN113427950A (zh) * 2021-08-05 2021-09-24 山东家源农业装备有限公司 一种车桥安装在发动机下面的连接结构
US20210323604A1 (en) * 2020-04-18 2021-10-21 Ryan Nathaniel Combs Coaxial co-located vehicle drive power and steering system
EP4046845A1 (fr) * 2021-02-18 2022-08-24 Volkswagen Ag Groupe motopropulseur pour véhicule
CN116100990A (zh) * 2023-02-23 2023-05-12 安徽华菱汽车有限公司 一种轮边可分离的转向电驱桥及车辆

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CN112026442A (zh) * 2020-08-21 2020-12-04 烟台腾野机械有限公司 一种转向驱动车桥及叉车
CN112590988B (zh) * 2020-11-30 2022-02-11 徐州耀武机车有限公司 电动三轮同向转向控制机构
CN118107365B (zh) * 2020-11-30 2025-04-08 比亚迪股份有限公司 轮边驱动总成和车辆
CN116160853A (zh) * 2023-03-28 2023-05-26 陕西法士特汽车传动集团有限责任公司 一种匹配独立悬架的半轴输出式电驱桥系统

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US11634174B2 (en) * 2020-04-18 2023-04-25 Ryan Nathaniel Combs Coaxial co-located vehicle drive power and steering system
EP4046845A1 (fr) * 2021-02-18 2022-08-24 Volkswagen Ag Groupe motopropulseur pour véhicule
CN113427950A (zh) * 2021-08-05 2021-09-24 山东家源农业装备有限公司 一种车桥安装在发动机下面的连接结构
CN116100990A (zh) * 2023-02-23 2023-05-12 安徽华菱汽车有限公司 一种轮边可分离的转向电驱桥及车辆

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