CN111677832A - A rolling type continuously variable transmission - Google Patents

Abstract

The present invention is a rolling type stepless transmission, which mainly includes a driving disc, which can rotate around its own axis and move horizontally as a whole; two transmission wheels are vertically arranged above the driving disc, and are respectively arranged at the distance drive The center of the wheel is at different positions, and it contacts with the drive disc to generate static friction; the wheel disc of the transmission wheel is a split type, and each includes a number of fan-shaped discs; the input shaft A and the input shaft B are respectively connected with the two transmission wheels. The differential gear, the input shaft of which is connected with the input shaft A and the input shaft B respectively; the drive disk drive device, which is connected with the drive disk and provides power for the rotation and horizontal movement of the drive disk. 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. It realizes stepless speed regulation and is not easy to slip.

Description

A rolling type continuously variable transmission

The present invention is a divisional application of the invention patent with the application number of "a rolling type continuously variable transmission" and the application number of "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 stepless transmission includes two pulleys and a transmission belt. It does not have the gear transmission structure of the traditional transmission, but uses two transmission wheels with variable diameters. The transmission belt is placed in the middle for transmission. Winding on the tapered pulley, the outer diameter of the pulley is steplessly changed according to the size of the oil pressure. The advantage of the transmission is that the shifting is very smooth, there is no jitter, 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 frictional force of the transmission belt, slippage is prone to occur during the shifting process, which in turn will lose energy, and the shifting range is limited.

SUMMARY OF THE INVENTION

A rolling type continuously variable transmission, comprising,

a drive disc, 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. The first transmission wheel and the second transmission wheel are vertically arranged above the driving disc, and are respectively arranged at different positions from the center of the driving wheel, and are connected with the driving wheel. The discs are in contact to generate static friction; the discs of the transmission wheel are of a split type, each including a number of fan-shaped discs;

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

Differential, the input shafts of which are connected with input shaft A and input shaft B respectively;

A drive disk drive device, connected with the drive disk, provides power for the rotation and horizontal movement of the drive disk; the drive disk drive device includes,

a drive wheel, connected with the drive disc through a connecting shaft A;

a moving wheel, meshing with the driving wheel;

a fixed wheel, meshing with the moving wheel, and its position is fixed;

a connecting rod, fixedly connecting the driving wheel and the moving wheel, so that the two can move at the same time; and fixedly connecting the moving wheel and the fixed wheel, so that the two can move at the same time;

a power device, connected with the driving wheel, for driving the driving wheel to move horizontally;

The differential includes,

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

two planetary gears, meshing with the two sun gears;

a frame, connected with the two planetary gears;

a bevel gear, fixedly connected with the frame;

a side bevel gear meshing with the bevel gear;

an output shaft, connected with 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 drive plate through the connecting shaft B;

a driving bevel gear, meshing 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 the two can move at the same time;

a 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 splines, and the input shaft of the driving wheel can slide in the rotating sleeve along the axial direction and rotate together with the rotating sleeve.

Preferably, the outer circumferential surface of the transmission wheel is a spherical surface, so that the contact between the transmission wheel and the drive disk is static friction.

Preferably, the transfer wheel includes,

The installation plate is installed in the middle of the transmission wheel, and a shaft hole is arranged in the middle position, and grooves are arranged on all surfaces around it;

A plurality of shafts are respectively installed in the grooves of the mounting plate and are used for connecting the sector-shaped wheels. 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 disc, which can rotate around its own axis and move horizontally as a whole; a transmission wheel, including a first transmission wheel and a second transmission wheel, the first transmission wheel and the second transmission wheel. The wheels are arranged vertically above the drive disc, respectively at different positions from the center of the drive wheel, and are in contact with the drive disc to generate static friction. The technical means such as "plate" have solved the technical problem of "the current continuously variable transmission has slipping phenomenon and limited speed change range"; it has achieved "the first transmission wheel and the second transmission wheel at the same time by driving the disc, without the need for the two input terminals. The effect of adjustment; at the same time, the transmission wheel adopts a split type, which can prevent the sliding friction of the driving disc during the translation process, avoid affecting the operation of the transmission, and without changing the pressure between the transmission wheel and the driving wheel, directly move the driving wheel, change The position where the transmission wheel is in contact with the driving wheel can change the speed" technical effect.

2. The embodiment of the present application adopts "the transmission wheel includes a mounting plate, which is installed in the middle of the transmission wheel, a shaft hole is arranged in the middle position, and grooves are arranged on all sides; several shafts are installed separately. In the groove of the mounting plate, the technical means used to connect the fan-shaped wheel piece solves the technical problem of "the problem of sliding friction caused by the overall translation of the transmission wheel"; The shaft on the mounting plate rotates to a certain extent to offset a certain range with the translation of the drive plate, and returns to the position through its own centrifugal force to avoid the technical effect of sliding friction between the transmission wheel and the mounting plate.

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

Description of drawings

FIG. 1 is a schematic diagram of an embodiment of a 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 diagram of section A-A in Fig. 3;

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

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

Detailed ways

The embodiment of the present invention provides a rolling type continuously variable transmission, which aims to solve the problem of slippage and limited speed change range in the current transmission. The wheels of the two transmission wheels are composed of several sector-shaped parts, the purpose is to avoid sliding friction with the driving wheel. The two transmission wheels are respectively installed on two fixed shafts, and the two fixed shafts are respectively connected with two opposite gears on the differential, and input power.

The drive disc is driven to rotate and translate by the drive disc drive device. Since the contact positions of the two transmission wheels and the drive disc are different, the linear speeds of the two transmission wheels are different, so 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 wider. The technical effect of no need to coordinately adjust the driving device, stepless speed regulation and less slippage can be achieved.

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

Example 1

An embodiment of the present invention provides a rolling type continuously variable transmission, as shown in FIG. 1 , which mainly includes a drive plate 10 that can rotate around its own axis and move horizontally as a whole.

It also includes a transmission wheel 20, including a first transmission wheel and a second transmission wheel with the same structure. Above, they are disposed at different positions from the center of the drive disk 10 . And the first transmission wheel and the second transmission wheel are in point contact with the driving disc 10 through a certain pressure to generate static friction. When the driving disc 10 rotates, the transmission wheel 20 is 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 the first transmission wheel and the second transmission wheel are different, so that the first transmission wheel and the second transmission wheel are driven at different linear speeds. The transfer wheel speed is different.

As shown in FIG. 3 and FIG. 4 , the wheel disc of the transmission wheel 20 is of a split type, a mounting disc 22 is provided in the middle of the transmission wheel 20 , and a shaft hole is provided at the center of the mounting disc 22 for transmission The axles of the wheels are connected; the mounting plate 22 has a certain thickness, and its sides are provided with grooves 221 along the circumferential direction; a number of shafts 222 are respectively installed in the grooves 221 of the mounting plate 22, and the wheels are divided into There are several fan-shaped wheels 21 , one end of the fan-shaped wheels 21 is connected to the shaft 222 and can rotate around the shaft 222 at a certain angle. This arrangement can make the sector wheel 21 of the transmission wheel 20 in contact with the driving disc 10 to be offset to a certain extent when the drive disc 10 is moving, and reset due to the centrifugal force during the subsequent rotation of the transmission wheel 20 , Therefore, sliding friction will not 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 position where the transmission wheel contacts the drive wheel. In actual use, in order to limit the offset of the sector wheel pieces 21 , limit wheels 70 may 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 gear 30 is a conventional differential gear structure, including two oppositely arranged sun gears 33; and two oppositely arranged planetary gears 34 meshing with the two sun gears, and connecting the two planetary gears 34 The frame 35 is also 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 side bevel gears 32 are connected to each other, and the speed difference input by the input shaft A40 and the input shaft B50 is converted by the conversion of the differential gear 30 , and the output is output by the output shaft 60 .

The embodiment of the present application further includes a drive disk drive device 80 , which is connected to the drive disk 10 and provides power for the rotation and horizontal movement of the drive disk 10 . As shown in FIG. 2 , the drive disk drive device includes a drive wheel 82, which is connected with the drive disk 10 through a connecting shaft A81; a moving wheel 83, which is engaged with the driving wheel 82; a fixed wheel 84, which is connected with the moving wheel 82. The wheel 83 is engaged, and the position of the fixed wheel 84 is fixed; wherein the driving wheel 82 and the moving wheel 83 are fixedly connected by the connecting rod 86, so that the two can move at the same time; the moving wheel 83 is simultaneously fixed with the fixed wheel 83 The wheels 84 are fixedly connected so that the two can move at the same time. The fixed wheels 84 provide rotational power for the driving wheels 82 to drive the driving disk 10 to rotate. The driving wheel 82 is also connected with a power device 87 for driving the driving wheel 82 to move horizontally. Since the moving wheel 83 can move, when the power device 87 drives the driving wheel 82 to move horizontally to change the speed of the transmission, The moving wheel 83 can move along with the driving wheel 82 while still maintaining an engaged state with the fixed wheel 84 , so that the driving disk 10 can rotate and move horizontally at the same time.

When in use, the action process of the embodiment of the present invention is that the fixed wheel 84 drives the driving wheel 82 to rotate, and then drives the driving disc 10 to rotate, and adjusts the positions of the two transmission wheels 20 on the driving disc 10. 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 . After passing through the differential 30 , the power is output through the output shaft 60 . When the output speed needs to be changed during operation, the driving wheel 82 can be driven by the power device 87 to move horizontally. In the embodiment of the present invention, the two transmission wheels are driven by the same drive disk, and the situation of slippage caused by mismatch of the two adjustment ends will not occur.

Example 2

The difference between this embodiment and Embodiment 1 is that the structure of the drive disk drive device is changed. In this embodiment, as shown in FIG. 5 , the structure mainly includes a driven bevel gear 92 , which is different from the driven bevel gear 92 . The drive plate 10 is connected by a 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 92. The gears 93 are installed in the fixed frame 95 so that the two can move at the same time. The driving bevel gear 93 is connected with a driving wheel input shaft 94, the driving wheel input shaft 94 extends out of the fixing frame 95, is connected with a rotating sleeve 96, and passes through the driving wheel input shaft 94 and the rotating sleeve 96. Connected by splines, the driving wheel input shaft 94 can slide in the axial direction in the rotating sleeve 96 and rotate together with the rotating sleeve 96. The rotating sleeve 96 is connected with a power source and is the driving wheel The input shaft 94 inputs power, and the driven bevel gear 92 is driven by the driving bevel gear 93 to rotate, thereby driving the drive disk 10 to rotate. The fixed frame 95 is connected with a power device for driving it to move horizontally.

In specific use, the principle is the same as that 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 The drive plate 10 translates, and since the drive wheel input shaft 94 can slide in the rotating sleeve 96 , the drive wheel input shaft 94 can still rotate with the rotating sleeve 96 while the translation is realized, providing rotation for the driven bevel gear 92 power, and then drive the drive disk 10 to rotate.

Although preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (3)

1. A rolling type continuously variable transmission is characterized by comprising,

the driving disc can rotate around a rotating shaft of the driving disc and can 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 contacted with the driving disc to generate static friction; the wheel discs of the transmission wheel are split and respectively comprise a plurality of fan-shaped wheel sheets;

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

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

the driving disc driving device is connected with the driving disc and provides power for the rotation and the horizontal movement of the driving disc; the drive disk drive device comprises a drive disk drive,

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

a moving wheel engaged with the driving wheel;

the fixed wheel is meshed with the moving wheel and is fixedly arranged;

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

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

the differential mechanism comprises a differential mechanism and a differential mechanism,

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

two planetary wheels meshed with the two sun wheels;

the frame is connected with the two planetary wheels;

the conical gear is fixedly connected with the frame;

the side bevel gear is meshed with the bevel gear;

the output shaft is 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 means may also be constructed such that,

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

the driving bevel gear is meshed with the driven bevel gear and is used for driving the driven bevel gear;

the fixing frame 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 along with the rotating sleeve.

2. The roll-pressed continuously variable transmission of claim 1, wherein the outer circumferential surface of the transfer wheel is spherical such that the transfer wheel contacts the drive plate as static friction.

3. The rolled 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 mounting disc, 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 disc and are used for connecting the fan-shaped wheel sheets.

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