CN111677832B - Rolling type stepless speed changer - Google Patents

Abstract

The present invention is a rolling type continuously variable transmission, which mainly includes a driving disc, which can rotate around its own rotating shaft and move horizontally as a whole; two transmission wheels are vertically arranged above the driving disc, respectively arranged at The center of the driving wheel is in a different position, and contacts with the driving disc to generate static friction; the disc of the transmission wheel is split, and both include a number of fan-shaped wheels; the input shaft A and the input shaft B are connected to the two transmission wheels respectively. The wheels are connected; the input shafts of the differential are respectively connected with the input shaft A and the input shaft B; the drive disc drive device is connected with the drive disc to provide power for the rotation and horizontal movement of the drive disc. In the present invention, the two transmission wheels are driven by the same driving wheel. Since the linear speeds at different positions of the rotating disk are different, the input speeds of the two input shafts are different, and the speed difference is amplified and output through the differential without coordination and adjustment of the driving device. Stepless speed regulation is realized and slipping is not easy to occur.

Description

A rolling type continuously variable transmission

The present invention is a divisional application of the invention patent with the application number "a rolling type continuously variable transmission" and the application number "2018114665687".

technical field

The invention belongs to the field of transmissions, in particular to a rolling type continuously variable transmission.

Background technique

The currently commonly used continuously variable transmission includes two pulleys and a transmission belt. It does not have the gear rotation structure of the traditional gearbox inside, but uses two transmission wheels whose diameter can be changed, and the transmission belt is placed in the middle to drive the transmission belt. The end is wound on the tapered pulley, and the outer diameter of the pulley can be changed steplessly by the oil pressure. The advantage of the transmission is that it is very smooth when shifting, without shaking, and it also saves fuel. However, when the transmission is shifting, it is necessary to coordinate and adjust the pulleys on both sides at the same time, and because it relies on the friction transmission of the transmission belt, it is very prone to slipping during the shifting process, which will cause energy loss, and the shifting range is limited.

Contents of the invention

A rolling type continuously variable transmission, comprising,

a driving disk, the driving disk can rotate around its own shaft and move horizontally as a whole;

The transfer wheel includes a first transfer wheel and a second transfer wheel, the first transfer wheel and the second transfer wheel are vertically arranged above the drive disc, are respectively arranged at different positions from the center of the drive wheel, and are connected to the drive wheel The disks are in contact with each other to generate static friction; the disks of the transfer wheel are split, and each includes a number of fan-shaped wheels;

Input shaft A and input shaft B are respectively connected with two transmission wheels;

A differential, the input shafts of which are respectively connected to the input shaft A and the input shaft B;

The drive disk drive device is connected with the drive disk to provide power for the rotation and horizontal movement of the drive disk; the drive disk drive device includes,

The driving wheel is connected with the driving disc through the connecting shaft A;

a moving wheel meshed with said drive wheel;

The fixed wheel is meshed with the moving wheel, and its position is fixed;

A connecting rod, fixedly connecting the driving wheel with the moving wheel, so that both can move simultaneously; and fixedly connecting the moving wheel with the fixed wheel, so that both can move simultaneously;

a power device connected to the drive wheel and used to drive the drive wheel to move horizontally;

The differential includes,

Two sun gears, set opposite to each other, are respectively connected with input shaft A and input shaft B;

two planetary gears meshing with the two sun gears;

a frame connected to the two planetary wheels;

a bevel gear fixedly connected with the frame;

a side bevel gear meshing with said bevel gear;

an output shaft connected to the side bevel gear;

It also includes limit wheels, which are arranged on both sides of the first transmission wheel and the second transmission wheel, and are used to limit the swing of the first transmission wheel and the second transmission wheel;

The structure of the drive disk drive device can also be:

The driven bevel gear is connected with the driving disc through the connecting shaft B;

a driving bevel gear meshed with the driven bevel gear for driving the driven bevel gear;

a fixing frame for fixing the driven bevel gear and the driving bevel gear so that both can move simultaneously;

The driving wheel input shaft, one end of which is connected with the driving bevel gear;

The rotating sleeve is connected with the input shaft of the driving wheel through a spline, and the input shaft of the driving wheel can slide axially on the rotating sleeve and rotate together with the rotating sleeve.

Preferably, the outer peripheral surface of the transmission wheel is a spherical surface, so that the contact between the transmission wheel and the driving disc is static friction.

Preferably, the transfer wheel includes,

The mounting plate is installed in the middle of the transfer wheel, and the middle position is provided with a shaft hole, and grooves are provided on all sides around it;

A plurality of shafts are respectively installed in the grooves of the mounting plate, and are used for connecting the sector wheel pieces. The technical solution provided by this application has at least the following technical effects:

1. The embodiment of the present application adopts "comprising a drive plate, which can rotate around its own axis and move horizontally as a whole; the transmission wheel includes a first transmission wheel and a second transmission wheel, and the first transmission wheel and the second transmission wheel The wheels are vertically arranged above the driving disc, and are respectively arranged at different positions from the center of the driving wheel, and contact with the driving disc to generate static friction; the discs of the transmission wheels are split, and each includes a number of sector wheels "Slice" and other technical means have solved the technical problem of "currently there is slipping phenomenon and the speed range is limited when the continuously variable transmission is used"; it has achieved "the first transmission wheel and the second transmission wheel are driven by the disc at the same time, without the need for two input ends The effect of adjustment; at the same time, the transfer wheel adopts a split type, which can prevent the sliding friction of the drive disc during translation, avoid affecting the operation of the transmission, and directly move the drive wheel without changing the pressure between the transfer wheel and the drive wheel. The technical effect of "speed change" can be achieved by the position where the transmission wheel contacts the drive wheel.

2. The embodiment of the present application adopts "the transfer wheel includes a mounting plate, which is installed in the middle of the transfer wheel, and the middle position is provided with a shaft hole, and grooves are provided on each surface around it; several shafts are installed separately. In the groove of the mounting plate, the technical means for connecting the segmented wheels solves the technical problem of "the overall translation of the transmission wheel will cause sliding friction"; it achieves the "segmented wheel can be wound around The shaft on the mounting plate rotates to a certain extent, so as to offset a certain range with the translation of the driving plate, and return to its position through its own centrifugal force, so as to avoid the technical effect of “sliding friction” between the transmission wheel and the mounting plate.

3. The embodiment of the present application adopts "the drive disc drive device includes a drive wheel, which is connected to the drive disc through a connecting shaft A; a moving wheel, which is meshed with the drive wheel; a fixed wheel, which is meshed with the moving wheel , its position is fixed; the connecting rod is fixedly connecting the driving wheel with the moving wheel so that both can move at the same time; and the technology of fixing the moving wheel with the fixed wheel so that both can move at the same time The method solves the technical problem of "how to ensure the input of rotation motion while translating when the device needs to change speed"; it achieves that "the driving device transmits power through the movable moving wheel, and the moving wheel can drive the wheel to move together, so that Adjust the transmission angle to achieve the technical effect of "the driving disc does not lose the power of rotation while translating."

Description of drawings

Fig. 1 is the schematic diagram of an embodiment of the rolling type continuously variable transmission of the present application;

Fig. 2 is a schematic diagram of direction B in Fig. 1;

Fig. 3 is the structural representation of transfer wheel;

Fig. 4 is the enlarged schematic view of A-A section in Fig. 3;

5 is a schematic diagram of an embodiment of another structure of the drive disk drive device;

In the figure, 10 driving disc, 20 transfer wheel, 21 sector wheel, 22 mounting disc, 221 groove, 222 shaft; 30 differential, 31 bevel gear, 32 side bevel gear, 33 sun gear, 34 planetary gear , 35 frame; 40 input shaft A, 50 input shaft B, 60 output shaft, 70 limit wheel, 80 driving disk drive device, 81 connecting shaft A, 82 driving wheel, 83 moving wheel, 84 fixed wheel, 85 fixed shaft, 86 connecting rod, 87 power unit; 90 driving disc driving device structure two, 91 connecting shaft B, 92 driven bevel gear, 93 driving bevel gear, 94 driving wheel input shaft, 95 fixed frame, 96 rotating sleeve.

Detailed ways

The embodiment of the present invention provides a rolling type continuously variable transmission, the purpose of which is to solve the problem of slippage and limited speed range when the current transmission is in use, through the rotation of the drive plate, and then drive the two transmissions perpendicular to the drive plate by static friction. Wheels, the discs of the two transmission wheels are made of several sector parts, the purpose is to avoid sliding friction with the drive wheel. The two transmission wheels are respectively mounted on two fixed shafts, and the two fixed shafts are respectively connected with two opposite gears on the differential to input power.

The drive disk is driven to rotate and translate by the drive disk driving device. Since the contact positions of the two transmission wheels and the drive disk are different, and the linear speeds of the two transmission wheels are different, the angular velocity of the transmission wheels is different, and the rotational speed of the fixed shaft is different. , amplify this speed gap through the differential to make the differential range larger. The technical effects of stepless speed regulation without coordinated adjustment of the driving device and less slippage phenomenon can be realized.

In order to better understand the technical solution of the present invention, the technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments:

Example 1

The embodiment of the present invention provides a rolling type continuously variable transmission, as shown in FIG. 1 , which mainly includes a driving disc 10 , which can rotate around its own rotating shaft and move horizontally as a whole.

It also includes a transfer wheel 20, including a first transfer wheel and a second transfer wheel with the same structure. The outer peripheral surface of the transfer wheel is a spherical surface, and the first transfer wheel and the second transfer wheel are vertically arranged on the drive plate 10. On the upper side, they are arranged at different positions from the center of the drive disk 10 . In addition, the first transmission wheel and the second transmission wheel are in point contact with the drive plate 10 under a certain pressure to generate static friction. When the drive plate 10 rotates, the transmission wheel 20 is further driven to rotate. Since the first transmission wheel and the second transmission wheel are respectively arranged at different positions from the center of the driving disc 10, the linear speeds of driving the first transmission wheel and the second transmission wheel are different, so that the first transmission wheel and the second transmission wheel The transfer wheel rotates at different speeds.

As shown in Figures 3 and 4, the disc of the transfer wheel 20 is a split type, the middle part of the transfer wheel 20 is provided with a mounting plate 22, and the center of the mounting plate 22 is provided with a shaft hole for transmitting The shaft connection of the wheel; the mounting plate 22 has a certain thickness, and its side is provided with grooves 221 along the circumferential direction; several shafts 222 are installed in the grooves 221 of the mounting plate 22 respectively, and the wheel disc is divided into It is a plurality of sector-shaped wheels 21, one end of which is connected to the shaft 222, and can rotate around the shaft 222 at a certain angle. Such setting can make the sector wheel 21 of the transmission wheel 20 that is in contact with the drive disk 10 shift to a certain extent when the drive disk 10 is moving, and reset due to the centrifugal force during the subsequent rotation of the transmission wheel 20. Thereby, no sliding friction will occur on the transmission wheel 20 as a whole, so that the speed change of the transmission is more stable, and the wear and tear of the equipment is reduced. Just change the contact position of the transfer wheel and the drive wheel. In actual use, in order to limit the offset of the sector wheel 21 , limit wheels 70 can be fixedly arranged on both sides of each transmission wheel 20 .

It also includes an input shaft A40 and an input shaft B50, the two input shafts are respectively connected with the first transmission wheel and the second transmission wheel, and the input shaft A40 and the input shaft B50 are also connected with a differential. The structure of the differential 30 is a conventional differential structure, including two oppositely arranged sun gears 33; it also includes two oppositely arranged planetary gears 34 meshed with the two sun gears, and the two planetary gears 34 are connected The frame 35 is connected with a bevel gear 31, and the bevel gear 31 is meshed with a side bevel gear 32. The input shaft A and the input shaft B are connected to one of the two sun gears respectively, so the power of the transmission wheel is input to the input shaft of the differential through this connection; the output shaft of the embodiment of the application is connected to the The side bevel gears 32 are connected, and the speed difference input by the input shaft A40 and the input shaft B50 is converted through the conversion of the differential 30 and output through the output shaft 60 .

The embodiment of the present application further includes a drive disk drive device 80 connected with the drive disk 10 to provide power for the rotation and horizontal movement of the drive disk 10 . As shown in Figure 2, the drive wheel drive device includes a drive wheel 82, which is connected to the drive plate 10 through a connecting shaft A81; a moving wheel 83, which is meshed with the drive wheel 82; a fixed wheel 84, which is connected to the moving wheel 82; The wheels 83 are engaged, and the position of the fixed wheel 84 is fixed; wherein the driving wheel 82 is fixedly connected with the moving wheel 83 through a connecting rod 86, so that both can move simultaneously; The wheels 84 are fixedly connected so that they can move simultaneously. The fixed wheels 84 provide rotational power for the driving wheels 82 to drive the driving disc 10 to rotate. The driving wheel 82 is also connected with a power unit 87, which is used to drive the driving wheel 82 to move horizontally. Since the moving wheel 83 can move, when the power unit 87 drives the driving wheel 82 to move horizontally to make the speed changer, The moving wheel 83 can move along with the driving wheel 82 while still being engaged with the fixed wheel 84 , so that the driving disc 10 can simultaneously rotate and move horizontally.

When in use, the action process of the embodiment of the present invention is to drive the drive wheel 82 to rotate by the fixed wheel 84, and then drive the drive plate 10 to rotate, adjust the position of the two transmission wheels 20 on the drive plate 10, and drive The disc 10 inputs different speeds to the transmission wheel 20 , and further inputs different speed differences to the input shaft of the differential 30 , and outputs power through the output shaft 60 after passing through the differential 30 . When the output speed needs to be changed during operation, the drive wheel 82 can be driven horizontally by the power device 87 . In the embodiment of the present invention, the two transmission wheels are driven by the same drive disc, so there will be no slippage caused by mismatching of the two adjustment ends.

Example 2

The difference between this embodiment and Embodiment 1 is that the structure of the drive disk drive device has been changed. In this embodiment, as shown in FIG. The driving disc 10 is connected through the connecting shaft B91; the driven bevel gear 92 is meshed with a driving bevel gear 93 for driving the driven bevel gear 92, and the driven bevel gear 92 is connected to the driving bevel gear. The gears 93 are all installed in the fixed frame 95, so that both can move simultaneously. The driving bevel gear 93 is connected with a driving wheel input shaft 94, the driving wheel input shaft 94 stretches out from the fixed frame 95, is connected with a rotating sleeve 96, and passes through the driving wheel input shaft 94 and the rotating sleeve 96. The drive wheel input shaft 94 can slide axially in the rotating sleeve 96 and rotate together with the rotating sleeve 96. The rotating sleeve 96 is connected with a power source, which is the driving wheel. The input shaft 94 inputs power, and the driving bevel gear 93 drives the driven bevel gear 92 to rotate, and then drives the driving disc 10 to rotate. The fixed frame 95 is connected with a power device that drives it to move horizontally.

During specific use, the principle is the same as described in the above-mentioned embodiment 1. When the power drives the fixed frame 95 to move horizontally, the driven bevel gear 92 and the driving bevel gear 93 move together with the fixed frame 95, and simultaneously drive the Drive plate 10 is translated, because driving wheel input shaft 94 can slide in rotating sleeve 96, so while realizing translation, driving wheel input shaft 94 can still rotate with rotating sleeve 96, provides rotation for driven bevel gear 92 Power, and then drive the drive plate 10 to rotate.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (3)

1. A rolling type stepless speed variator is composed of a main body consisting of a main body and a rolling type stepless speed variator,

the driving disc can rotate around the rotating shaft of the driving disc and integrally and horizontally move;

the transmission wheels comprise a first transmission wheel and a second transmission wheel, the first transmission wheel and the second transmission wheel are vertically arranged above the driving disc, are respectively arranged at different positions away from the center of the driving wheel, and are in contact with the driving disc to generate static friction; the wheel disc of the transfer wheel is split and comprises a plurality of sector wheel pieces;

the input shaft A and the input shaft B are respectively connected with two transmission wheels;

the input shaft of the differential mechanism is connected with the input shaft A and the input shaft B respectively;

the driving disc driving device is connected with the driving disc and used for providing power for the rotation and horizontal movement of the driving disc; the drive disc drive apparatus includes a drive unit,

the driving wheel is connected with the driving disc through a connecting shaft A;

a moving wheel meshed with the driving wheel;

the fixed wheel is meshed with the movable wheel and is fixedly arranged at the position;

the connecting rod fixedly connects the driving wheel with the moving wheel so that the driving wheel and the moving wheel can move simultaneously; the movable wheel is fixedly connected with the fixed wheel, so that the movable wheel and the fixed wheel can move simultaneously;

the power device is connected with the driving wheel and used for driving the driving wheel to horizontally move;

the differential mechanism includes a differential gear mechanism that is configured to rotate about a rotational axis,

the two sun gears are oppositely arranged and are respectively connected with the input shaft A and the input shaft B;

two planetary gears meshed with the two sun gears;

the frame is connected with the two planetary gears;

the bevel gear is fixedly connected with the frame;

a side bevel gear engaged with the bevel gear;

an output shaft connected with the side bevel gear;

the limiting wheels are arranged on two sides of the first transmission wheel and the second transmission wheel and used for limiting the swing of the first transmission wheel and the second transmission wheel;

the drive disc drive apparatus may also be configured such that,

the driven bevel gear is connected with the driving disc through a connecting shaft B;

a drive bevel gear engaged with the driven bevel gear for driving the driven bevel gear;

the fixed mount is used for fixing the driven bevel gear and the driving bevel gear so that the driven bevel gear and the driving bevel gear can move simultaneously;

one end of the driving wheel input shaft is connected with the driving bevel gear;

the rotating sleeve is connected with the driving wheel input shaft through a spline, and the driving wheel input shaft can axially slide in the rotating sleeve and rotate together with the rotating sleeve.

2. The roll-to continuously variable transmission of claim 1, wherein the outer circumferential surface of the transfer wheel is spherical such that the transfer wheel is in static friction contact with the drive plate.

3. The roll-to-roll continuously variable transmission of claim 1, wherein the transfer wheel comprises,

the mounting disc is mounted in the middle of the transfer wheel, a shaft hole is formed in the middle of the transfer wheel, and grooves are formed in all the peripheral surfaces of the mounting disc;

and the shafts are respectively arranged in the grooves of the mounting plate and are used for connecting the sector wheel plates.