Continuously variable transmission and motorcycle

Abstract

The invention relates to the field of motorcycle speed change, and discloses a stepless speed changer and a motorcycle. The stepless speed changer comprises an executing mechanism installed on the outer side of a stepless speed change mechanism, the stepless speed change mechanism comprises a crankshaft coaxially connected with the crankshaft, and a driving wheel is coaxially connected to the crankshaft; an inner side cone disc, close to the vehicle body, of the driving wheel is coaxially fixed to the crankshaft, an outer side cone disc and the crankshaft are arranged in a relative sliding mode, the executing mechanism comprises a mounting frame, a coaxial sliding structure arranged on the mounting frame and a driving structure used for driving the coaxial sliding structure, and the coaxial sliding structure is used for coaxially pushing the outer side cone disc of the driving wheel to slide on the crankshaft. The conical discs on the two sides of the driving wheel are inverted, only the executing mechanism needs to be installed on the side, away from the vehicle body, of the stepless speed change mechanism, namely the executing mechanism is connected to the outer portion of the vehicle body, when a product is damaged or aged and needs to be replaced or maintained, the stepless speed change mechanism does not need to be overall disassembled, the manual workload is reduced, and the maintenance cost of consumers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of motorcycle speed change, and particularly to a continuously variable transmission and a motorcycle. Background Art

[0002] A continuously variable transmission is an automatic transmission system that can continuously change the transmission ratio. Its core feature is that it does not require fixed gears, and it realizes a smooth acceleration and deceleration process by adjusting the contact radius of the drive belt or chain. This type of transmission is widely used in vehicles such as cars and motorcycles, and has the advantages of simple structure, small size, good fuel economy, and high driving comfort.

[0003] In the continuously variable transmission mechanism used in existing scooters, the continuously variable transmission mechanism is installed outside the vehicle body and connected to the engine crankshaft inside the vehicle body. The continuously variable transmission mechanism includes a drive wheel and a driven wheel, and the drive wheel and the driven wheel are connected by a drive belt. The rotating shaft of the drive wheel is connected to the crankshaft. The drive wheel is composed of two conical disks. The outer conical disk is fixed, and the inner conical disk can slide back and forth on the shaft. In the prior art, the inner conical disk is often set as a pulley disk. The driven wheel is also composed of two conical disks, and a clutch is provided between one conical disk of the driven wheel and its rotating shaft.

[0004] However, in the pulley disk structure adopted in the prior art, it mainly relies on the centrifugal force during rotation to squeeze the inner conical disk of the drive wheel through the pulley beads to adjust the gap between the two conical disks on both sides of the drive wheel, and the inclined housing and the pulley beads squeeze the sliding conical disk to realize the movement of the conical disk. In this process, the friction between the pulley beads and the housing and the conical disk is relatively large. Prolonged use will cause serious wear and ultimately lead to failure. Therefore, it needs to be maintained frequently. However, since the continuously variable transmission mechanism is connected to the crankshaft of the engine or the power structure inside the vehicle body, and the pulley disk is located between the drive wheel and the inside of the vehicle body, the disassembly and installation are relatively cumbersome. Summary of the Invention

[0005] The present invention aims to provide a continuously variable transmission and a motorcycle to solve the problems of serious wear of the continuously variable transmission mechanism and cumbersome disassembly, installation, and maintenance.

[0006] To achieve the above object, the present invention adopts the following technical solution: A continuously variable transmission, comprising a continuously variable transmission mechanism and an actuator installed outside the continuously variable transmission mechanism. The drive wheel is coaxially connected to the crankshaft. The inner conical disk of the drive wheel close to the vehicle body is coaxially fixed to the crankshaft, and the outer conical disk is slidably arranged relative to the crankshaft. The actuator includes a mounting bracket for fixedly connecting to the continuously variable transmission mechanism, a coaxial sliding structure arranged on the mounting bracket, and a driving structure for driving the coaxial sliding structure. The coaxial sliding structure is used to coaxially push the outer conical disk of the drive wheel to slide on the crankshaft.

[0007] The beneficial effects of this solution are as follows: By inverting the conical discs on both sides of the driving wheel, the conical discs on both sides of the driven wheel also need to be inverted. At this time, only the actuator needs to be installed on the side of the stepless speed change mechanism away from the vehicle body, that is, connected outside the vehicle body. When the product is damaged or aged and needs to be replaced or repaired, it is not necessary to disassemble the entire stepless speed change mechanism, reducing the workload of labor and also reducing the maintenance cost for consumers.

[0008] In the prior art, the driving wheel is connected to the crankshaft. At the same time, the conical disc inside the driving wheel is set as a pulley disc. The centrifugal force of the pulley beads and the friction of the housing are used to pressurize the conical disc to achieve the sliding of the conical disc. This transmission efficiency is relatively low. In addition, the pulley bead stepless speed change system is usually used for small-displacement models, and the application range is relatively narrow. Compared with the prior art, in this solution, the actuator is installed outside the stepless speed change mechanism, connected to the slidable conical disc outside the driving wheel through a coaxial sliding structure and the driving structure to achieve the coaxial sliding of the outer conical disc. Therefore, the drive of the speed change system and the drive of the engine are completely separated, which can effectively reduce additional fuel consumption and is more suitable for motorcycles with high torque and high output performance.

[0009] In addition, for manufacturers, the produced stepless speed changers are mass-produced, including two complete structures: the stepless speed change structure and the actuator structure. Therefore, for consumers or operators, they can directly purchase and assemble and sell the two complete structures of the stepless speed change structure and the actuator structure together. For manufacturers, it increases sales and can increase product prices. For operators, it reduces the number of wholesale manufacturers and reduces various procedures and costs. Therefore, it is a product beneficial to the market. For users, the reduction of maintenance costs is also a kind of benefit. Therefore, it plays a positive role in promoting the entire market.

[0010] On the other hand, for the stepless speed change systems involved in the prior art that have been batch-produced, due to the centralized placement of the mass-produced stepless speed change systems in preparation for the next production, there are usually large inventories of the produced speed change systems. The actuator of this solution can be adapted to a large number of such existing produced speed change systems. If operators have a demand, when installing and selling in batches, they only need to separately purchase from the manufacturer the actuator of the adapted model, remove the pulley disc and put it into the production of other models, install the conical discs on both sides of the driving wheel and the driven wheel in the reverse direction, and then install the actuator structure on the outside of the stepless speed change system.

[0011] Furthermore, the stepless speed change mechanism includes a housing fixedly connected to the vehicle body. A driven shaft is also rotatably connected inside the housing. The driven wheel is coaxially arranged on the driven shaft. The driving wheel includes a primary movable conical disc and a primary fixed conical disc. The driven wheel includes a secondary movable conical disc and a secondary fixed conical disc. The primary fixed conical disc and the primary movable conical disc are respectively located on the inner side and the outer side of the crankshaft close to the vehicle body.

[0012] Further, the coaxial sliding structure includes a guiding cylinder opened on the mounting bracket, the guiding cylinder is coaxially opened with the crankshaft, and further includes a release bearing slidably connected to the outer ring of the guiding cylinder near the housing, the driving structure is connected to the release bearing, and the driving structure is used to drive the release bearing to abut against the driving wheel.

[0013] The beneficial effect of this solution is that the inner ring of the release bearing is slidably connected to the guiding cylinder, and the outer ring abuts against the primary moving cone plate under the extrusion of the driving structure. After the primary moving cone plate contacts the release bearing, the primary moving cone plate drives the primary moving cone plate to rotate coaxially through dynamic friction. There is no relative movement between the two, so there is no wear and the service life is high.

[0014] Further, the diameter of the guiding cylinder is larger than the diameter of the crankshaft, and the crankshaft is provided to pass through the guiding cylinder.

[0015] The beneficial effect of this solution is that the guiding cylinder provides support for the release bearing and does not interfere with the rotation of the crankshaft. The two do not contact each other. For installation, disassembly and replacement, the engine system and the transmission system are completely separated and do not interfere with each other, further ensuring the improvement of the replacement and maintenance efficiency and the reduction of the maintenance cost.

[0016] Further, the driving structure includes a driving cavity axially opened at one end of the guiding cylinder away from the housing. A first piston is slidably connected between one end of the driving cavity close to the housing and the outer ring of the guiding cylinder. Further includes a driving cylinder communicated with the driving cavity. There is a fluid in the driving cylinder and the driving cavity. The driving cylinder is provided with a driving member, and the driving member is used to drive the first piston to abut against the release bearing through the fluid, so that the release bearing abuts against the driving wheel.

[0017] Further, the fluid is set as hydraulic oil, the driving member is set as a motor, a second piston is slidably connected in the driving cylinder, a lead screw is coaxially arranged at the output end of the motor, and the lead screw is threadedly connected to the second piston.

[0018] The beneficial effect of this solution is that the motor drives the second piston to push the hydraulic oil into the driving cavity and push the first piston to slide. Compared with the prior art, the force loss of hydraulic drive is smaller, and there is no fuel consumption caused by speed change, further improving the transmission efficiency.

[0019] Further, the mounting bracket is further provided with a sensing system. The sensing system includes a resistance member fixed on the mounting bracket and coaxially arranged with the guiding cylinder, and a sensor connected to the resistance member. The resistance member is slidably arranged relative to the release bearing, and the sensor detects the displacement of the release bearing by detecting the voltage change of the circuit.

[0020] The beneficial effect of this solution is that whether the primary moving cone plate is pushed forward or pushed out, the sensor can measure the voltage change through the resistance member, convert it into a corresponding value and send it to the TCU for processing, improving the controllability and flexibility of speed regulation.

[0021] Further, a first elastic member is disposed between the secondary moving conical disc and the housing. The clutch includes a brake hub fixed to the housing and a brake shoe hinged to the secondary moving conical disc, and a second elastic member is connected between the brake shoe and the secondary moving conical disc.

[0022] Further, a third elastic member is disposed between the mounting bracket and the release bearing, and a fourth elastic member is disposed between the second piston and the driving cylinder.

[0023] A motorcycle includes the continuously variable transmission described above. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the continuously variable transmission mechanism and the actuator cooperating with each other according to an embodiment of the present invention; Figure 2 It is a schematic sectional structure diagram of the actuator and the continuously variable transmission mechanism cooperating with each other according to an embodiment of the present invention; Figure 3 It is a schematic sectional structure diagram of the actuator according to an embodiment of the present invention; Figure 4 It is Figure 2 A partial structure diagram of the coaxial sliding structure at A in Figure 5 It is Figure 3 A partial structure diagram of the sensing system, the coaxial sliding structure, and the driving structure cooperating with each other at B in Detailed Description of the Invention

[0025] The following is a further detailed description through specific embodiments: The reference numerals in the accompanying drawings of the specification include: actuator 1, mounting bracket 11, third elastic member 111, coaxial sliding structure 12, driving structure 13, guiding cylinder 14, release bearing 141, driving ring 142, driving cavity 15, first piston 151, driving cylinder 131, second piston 1311, fourth elastic member 1312, motor 132, lead screw 1321, sensing system 2, resistance member 21, sensor 22, displacement slider 23, continuously variable transmission mechanism 3, housing 31, crankshaft 311, driven shaft 312, driving wheel 4, primary moving conical disc 41, primary fixed conical disc 42, driven wheel 5, secondary moving conical disc 51, first elastic member 511, secondary fixed conical disc 52, brake disc 53, brake shoe 54.

[0026] Embodiment The embodiment is basically as shown in the attached Figures 1-5 as Figures 1-2The continuously variable transmission shown includes a continuously variable mechanism 3 for connecting to the vehicle body. The continuously variable mechanism 3 includes a housing 31 fixedly connected to the vehicle body. At both ends inside the housing 31, a crankshaft 311 and a driven shaft 312 are rotatably provided respectively. A driving wheel 4 and a driven wheel 5 are coaxially provided on the crankshaft 311 and the driven shaft 312 respectively. A conveyor belt is drivingly connected between the driving wheel 4 and the driven wheel 5. The driving wheel 4 includes an inner primary fixed cone disk 42 close to the vehicle body and an outer primary movable cone disk 41 away from the vehicle body. The primary fixed cone disk 42 is coaxially fixed to the crankshaft 311, and the primary movable cone disk 41 is coaxially slidably connected to the crankshaft 311. The primary movable cone disk 41 is coaxially fixedly welded with a sleeve. The inner diameter of the sleeve is equal to the cross-sectional circle diameter of the crankshaft 311. Axial sliding connection is achieved between the crankshaft 311 and the inner circle of the sleeve through the cooperation of a chute and an axial slider, so as to realize the sliding connection between the primary movable cone disk 41 and the crankshaft 311.

[0027] As Figures 2-3 shown, it further includes an actuator 1 installed on the outer side of the housing 31 of the vehicle body. The actuator 1 includes a mounting bracket 11 for fixedly connecting to the housing 31. The mounting bracket 11 is fixedly connected to the housing 31 by bolts. The actuator 1 further includes a coaxial sliding structure 12 provided on the mounting bracket 11. The coaxial sliding structure 12 includes a guide cylinder 14 fixedly opened on the mounting bracket 11. The guide cylinder 14 is located on the side of the mounting bracket 11 close to the housing 31, and the inner diameter of the cross-sectional circle of the guide cylinder 14 is larger than the cross-sectional circle diameter of the crankshaft 311. When the mounting bracket 11 is installed on the housing 31, the end of the crankshaft 311 inside the housing 31 passes through the guide cylinder 14. Neither the guide cylinder 14 nor the mounting bracket 11 contacts the crankshaft 311. The coaxial sliding structure 12 further includes a thrust bearing 141 slidably connected to the end of the guide cylinder 14 close to the primary movable cone disk 41. The inner diameter of the cross-sectional circle of the thrust bearing 141 is equal to the outer diameter of the cross-sectional circle of the guide cylinder 14. A chute and a slider structure are also provided between the outer circle of the guide cylinder 14 and the inner circle of the thrust bearing 141 to realize the sliding connection between the thrust bearing 141 and the guide cylinder 14.

[0028] As Figures 2-5As shown in the figure, the actuator 1 further includes a driving structure 13 connected to the mounting bracket 11 and used to drive the release bearing 141 to slide on the guide cylinder 14. The driving structure 13 includes a driving cavity 15 axially opened on the outer ring of the guide cylinder 14. The driving cavity 15 is arranged at one end of the guide cylinder 14 away from the housing 31. The driving cavity 15 is set as an annular space coaxial with the guide cylinder 14. A first piston 151 is slidably connected between the driving cavity 15 and the outer wall of the guide cylinder 14. The first piston 151 is annular and embedded in the annular space of the driving cavity 15. The top of the driving cavity 15 forms a sealed space through the first piston 151. A driving ring 142 is also slidably connected to the outer ring of the guide cylinder 14. The driving ring 142 is fixedly connected to the release bearing 141. A third elastic member 111 is connected between the driving ring 142 and the mounting bracket 11. The third elastic member 111 is set as a tension spring. Under normal circumstances, the third elastic member 111 pulls the release bearing 141 away from the housing 31 through the driving ring 142. The diameters of the cross-sectional circles of the inner ring of the driving ring 142 and the outer ring of the guide cylinder 14 are equal. A structure of a chute and a slider is also arranged between the inner wall of the driving ring 142 and the outer wall of the guide cylinder 14, so as to realize the sliding connection between the driving ring 142 and the guide cylinder 14. The radial thickness of the driving ring 142 along the guide cylinder 14 is not greater than the radial thickness of the driving cavity 15 along the guide cylinder 14.

[0029] As Figures 2-5 shown in the figure, the driving structure 13 further includes a driving cylinder 131. The driving cylinder 131 is set as a hydraulic cylinder. A hydraulic pipe is connected between the driving cylinder 131 and the driving cavity 15. The driving cavity 15 and the driving cylinder 131 are communicated through the hydraulic pipe. The inner cavity of the driving cylinder 131 is set as a columnar space. The driving cylinder 131 is sequentially provided with an oil pot connected to the driving cylinder 131, a second piston 1311 slidably connected to the inner cavity of the driving cylinder 131, a connecting block fixedly connected to the second piston 1311, and a motor 132 installed at the bottom end of the driving cylinder 131 from the cylinder opening to the cylinder bottom. A lead screw 1321 is coaxially arranged at the output end of the motor 132. The lead screw 1321 is threadedly connected to the connecting block. When the driving cylinder 131 is installed, it is placed horizontally. An oil flow port for connecting the oil pot is vertically opened at the top of the driving cylinder 131. The oil pot is communicated with the inside of the cylinder body of the driving cylinder 131 through the oil flow port. A fourth elastic member 1312 is connected between the second piston 1311 and the opening of the driving cylinder 131. The fourth elastic member 1312 is set as a spring. When the motor 132 rotates, it drives the lead screw 1321 to rotate coaxially. Since the lead screw 1321 is threadedly connected to the connecting block, when the lead screw 1321 rotates, the connecting block also has a tendency to rotate. However, since an axial chute and a slider are arranged between the second piston 1311 and the inner wall of the driving cylinder 131 to achieve axial sliding connection, the lead screw 1321 will not drive the second piston 1311 to rotate when it rotates. The second piston 1311 can be smoothly driven to slide horizontally in the driving cylinder 131 by the rotation of the motor 132.

[0030] As Figures 2-5 shown, when the second piston 1311 slides horizontally towards the opening of the drive cylinder 131 under the drive of the motor 132, the second piston 1311 squeezes the hydraulic oil in the drive cylinder 131 into the drive chamber 15 through the oil pipe. The oil drives the first piston 151 to press against the drive ring 142, thereby driving the release bearing 141 to slide towards the housing 31, so that the release bearing 141 presses against the primary driving cone disc 41. When it is necessary for the release bearing 141 to slide away from the housing 31, the motor 132 drives the second piston 1311 to slide towards the motor 132. When the second piston 1311 slides in the reverse direction, the hydraulic oil in the drive chamber 15 is drawn back into the drive cylinder 131 under the action of pressure. At this time, the third elastic member 111 pulls the drive ring 142 to slide in the reverse direction, so that the release bearing 141 and the primary driving cone disc 41 are disengaged from contact.

[0031] The secondary driving cone disc 51 is located on the side of the housing 31 close to the vehicle body. A first elastic member 511 is connected between the secondary driving cone disc 51 and the housing 31. The first elastic member 511 is arranged as a spring. The clutch includes a circular brake disc 53 fixedly arranged on the transmission. The brake disc 53 and the driven shaft 312 are coaxially arranged. The clutch further includes a plurality of brake shoes 54 symmetrically arranged around the outer circumference of the driven shaft 312. A second elastic member is connected between the brake shoes 54 and the driven shaft 312. The second elastic member is arranged as a tension spring.

[0032] When the actuator 1 uses the hydraulic oil in the drive cylinder 131 to make the release bearing 141 press against the primary driving cone disc 41, at this time the primary driving cone disc 41 slides towards the primary fixed cone disc 42, and at the same time the primary driving cone disc 41 and the primary fixed cone disc 42 rotate coaxially together. As the primary driving cone disc 41 moves, the distance between the centers of the driving wheels 4 decreases. At this time, the transmission belt is squeezed by the inclined surface of the cone disc, so that the circumferential radius of the transmission belt around the driving wheel 4 increases, and at the same time the total length of the transmission belt remains unchanged. Therefore, at one end of the driven wheel 5, the tension of the transmission belt on the driven shaft 312 becomes larger, and the cone discs on both sides of the driven wheel 5 are squeezed. During the whole process, the first elastic member 511 always squeezes the secondary driving cone disc 51 towards the secondary fixed cone disc 52, so that the circumferential radius of the transmission belt at the driven wheel 5 always remains the largest. When the elastic force of the first elastic member 511 is less than the squeezing force of the transmission belt, the circumferential radius of the transmission belt at the driven wheel 5 changes, resulting in a change in the transmission ratio and realizing speed change. When the rotational speed of the crankshaft is very low, it will naturally cause the rotational speeds of the crankshaft 311 and the driven shaft 312 to be low. At this time, the plurality of brake shoes 54 approach the driven shaft 312 under the tension of the second spring. Therefore, the brake shoes 54 will not contact the brake disc 53 at this time. The brake disc 53 is coaxially arranged with the vehicle body roller, so the roller will not rotate. When the rotational speeds of the crankshaft 311 and the driven shaft 312 are relatively large, the centrifugal force of the plurality of brake shoes 54 is greater than the tension of the second elastic member. At this time, the centrifugal force gets rid of the tension of the second elastic member, so that the plurality of brake shoes 54 press against the brake disc 53 to realize the transmission connection.

[0033] As Figure 3 , Figure 5 shown, it further includes a sensing system 2 disposed on the mounting bracket 11. The sensing system 2 includes a displacement slider 23 fixedly connected to the driving ring 142. Since the driving ring 142 and the release bearing 141 are coaxially connected, the movement amount of the release bearing 141 can be directly measured by detecting the movement amount of the driving ring 142. A resistance member 21 is fixedly disposed on the mounting bracket 11. The resistance member 21 is arranged in a rod shape and is axially arranged with the guiding cylinder 14. The resistance member 21 is parallel to the guiding cylinder 14. The mounting bracket 11 is further provided with a processor, and the processor is connected to the resistance member 21. A closed loop is formed between the processor and the resistance member 21. The displacement slider is made of a conductive material. When the driving ring 142 drives the displacement slider to slide on the resistance member 21, the processor detects the change in voltage in the closed loop and makes a judgment according to the program written in the processor. In the written judgment program, the movement of the primary moving cone disk 41 and the transmission ratio of the corresponding transmission belt are associated. In this written judgment program, relevant experiments need to be done in advance. The experiment is to calculate the transmission ratio by pushing the primary moving cone disk 41 and detecting the rotational speeds of the driving wheel 4 and the driven wheel 5 respectively. The transmission ratio, the movement of the primary moving cone disk 41, and the rotational speed are listed as data respectively, and a structure tree is established according to the test data. The judgment program detects the speed change according to the structure tree.

[0034] This application also proposes a motorcycle, which includes the above-mentioned continuously variable transmission, and of course also includes other necessary components that make up the motorcycle, which will not be elaborated here and can be referred to the prior art.

[0035] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as well-known characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, and these should also be regarded as the protection scope of the present invention, which will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. Continuously variable transmission, characterized in that: It includes a continuously variable transmission mechanism and an actuator installed outside the continuously variable transmission mechanism. The drive wheel is coaxially connected to the crankshaft. The inner conical disk of the drive wheel close to the vehicle body is coaxially fixed to the crankshaft, and the outer conical disk is slidably arranged relative to the crankshaft. The actuator includes a mounting bracket for fixedly connecting to the continuously variable transmission mechanism, a coaxial sliding structure arranged on the mounting bracket, and a driving structure for driving the coaxial sliding structure. The coaxial sliding structure is used to coaxially push the outer conical disk of the drive wheel to slide on the crankshaft.

2. The continuously variable transmission according to claim 1, wherein: The continuously variable transmission mechanism includes a housing fixedly connected to the vehicle body. A driven shaft is also rotatably connected inside the housing. A driven wheel is coaxially arranged on the driven shaft. The drive wheel includes a primary driving conical disk and a primary stationary conical disk. The driven wheel includes a secondary driving conical disk and a secondary stationary conical disk. The primary stationary conical disk and the primary driving conical disk are respectively located on the inner side and the outer side of the crankshaft close to the vehicle body.

3. The continuously variable transmission according to claim 1, characterized in that: The coaxial sliding structure includes a guiding cylinder opened on the mounting bracket. The guiding cylinder is coaxially opened with the crankshaft. It also includes a separating bearing slidably connected to the outer ring of the guiding cylinder close to the housing. The driving structure is connected to the separating bearing, and the driving structure is used to drive the separating bearing to abut against the drive wheel.

4. The continuously variable transmission according to claim 3, characterized in that: The diameter of the guiding cylinder is larger than that of the crankshaft, and the crankshaft is passed through the guiding cylinder.

5. The continuously variable transmission according to claim 3, characterized in that: The driving structure includes a driving cavity axially opened at one end of the guiding cylinder away from the housing. A first piston is slidably connected between one end of the driving cavity close to the housing and the outer ring of the guiding cylinder. It also includes a driving cylinder communicated with the driving cavity. There is a fluid in the driving cylinder and the driving cavity. A driving member is installed on the driving cylinder. The driving member is used to drive the first piston to abut against the separating bearing through the fluid, so that the separating bearing abuts against the drive wheel.

6. The continuously variable transmission according to claim 5, wherein: The fluid is set as hydraulic oil, the driving member is set as a motor. A second piston is slidably connected in the driving cylinder. The output end of the motor is coaxially provided with a lead screw, and the lead screw is threadedly connected to the second piston.

7. The continuously variable transmission according to claim 5, characterized in that: The mounting bracket is also provided with a sensing system. The sensing system includes a resistance member fixedly arranged on the mounting bracket and coaxially with the guiding cylinder, and a sensor connected to the resistance member. The resistance member is slidably arranged relative to the separating bearing. The sensor detects the displacement of the separating bearing by detecting the voltage change of the circuit.

8. The continuously variable transmission according to claim 2, characterized in that: A first elastic member is arranged between the secondary driving conical disk and the housing. The clutch includes a brake hub fixed to the housing and a brake shoe hinged to the secondary driving conical disk. A second elastic member is connected between the brake shoe and the secondary driving conical disk.

9. The continuously variable transmission according to claim 6, wherein: A third elastic member is arranged between the mounting bracket and the separating bearing. A fourth elastic member is arranged between the second piston and the driving cylinder.

10. A motorcycle, characterized in that: It includes the continuously variable transmission according to any one of claims 1-9.

Images