Stepless speed change device based on slider-crank mechanism

Abstract

The invention relates to a stepless speed change device based on a crank sliding block mechanism, and belongs to the field of mechanical transmission. The stepless speed change device comprises at least n sets of crank connecting rod sliding block mechanisms. Each crank connecting rod sliding block mechanism comprises an input shaft (1), a driving wheel (2), a variable torque adjusting mechanism (3), a crank sliding block mechanism (4), a driving rack set (5), a driven gear set (6), a single-phase grooved wheel mechanism (7), an output shaft (8) and a flywheel mechanism (9). The stepless speed change device is high in transmission precision, small in power loss and high in response speed, and the stepless speed changer achieves large-speed-ratio, high-efficiency and constant-speed output within the limited structural size.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical transmission, and particularly relates to a stepless speed change device based on a slider-crank mechanism. BACKGROUND

[0002] There are two forms of the existing mechanical stepless speed changer, one is an automatic speed changer (AT), which realizes stepless speed change by mechanical energy-fluid energy-mechanical energy conversion, and is mainly composed of a hydraulic torque converter and a planetary gear speed change mechanism in series, and is widely applied to various aspects of vehicles, engineering machinery and ships, etc. involving speed change transmission, and has the characteristics of a large speed ratio range and high transmission efficiency, but has the problems of low transmission efficiency and poor constant speed output due to the use of the hydraulic torque converter device which relies on fluid to transmit energy.

[0003] The other is a continuously variable speed changer (CVT), which uses steel belts, chains and steel balls as transmission media to change the transmission ratio and transmit motion (widely used in the current precision transmission field), and has the characteristics of high transmission precision and stable output speed, but is limited by the structure (relying on friction to transmit motion) and has low transmission power and a small transmission range, which limits its use range.

[0004] In summary, the transmission field needs a stepless speed change device with high transmission precision, small power loss and fast response speed. SUMMARY (I) Technical problem to be solved The technical problem to be solved by the present application is how to provide a stepless speed change device based on a slider-crank mechanism to solve the problems of low transmission power, small transmission range and limited use range of the existing stepless speed changer.

[0005] (II) Technical scheme In order to solve the above technical problems, the present application provides a stepless speed change device based on a slider-crank mechanism, which comprises: at least n sets of slider-crank mechanisms, n is a positive integer, n>=1, the slider-crank mechanism comprises: an input shaft (1), a driving wheel (2), a torque adjusting mechanism (3), a slider-crank mechanism (4), a driving rack set (5), a driven gear set (6), a single-phase groove wheel mechanism (7), an output shaft (8) and a flywheel mechanism (9); The input shaft (1) is fixed by rolling bearings on the shaft shoulders at both ends embedded in the bearing holes in the inner wall of the speed change device box, and the driving wheel (2) is fixed on the input shaft (1); The variable torque adjusting mechanism (3) is sleeved with a linear motor inside a radial spoke guide rail of the driving wheel (2); a control signal is transmitted to the linear motor inside the variable torque adjusting mechanism (3) through a slip ring, and the variable torque adjusting mechanism (3) is controlled to move along the radial spoke guide rail, so as to change the driving fulcrum position of the crank slider mechanism (4) and change the movement speed of the slider of the crank slider mechanism (4); The crank of the crank slider mechanism (4) is connected with the variable torque adjusting mechanism (3) through a joint bearing; the crank of the crank slider mechanism (4) is also connected with the slider through a joint bearing; the slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5); The rack of the driving rack set (5) is meshed with the gear of the driven gear set (6), so as to convert the reciprocating linear motion of the rack into the reciprocating rotary motion of the gear; The inner ring of the gear of the driven gear set (6) is fixedly connected with the single-phase groove wheel mechanism (7), the outer ring of the single-phase groove wheel mechanism (7) rotates synchronously with the gear of the driven gear set (6); the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected with the output shaft (8); when the gear of the driven gear set (6) reciprocates, the single-phase groove wheel mechanism (7) only transmits the unidirectional rotation to the output shaft (8) to make the output shaft (8) only rotate in one direction, and the output shaft (8) is fixedly embedded in the bearing hole of the inner wall of the transmission device box through the rolling bearings on the shaft shoulders; The flywheel mechanism (9) is sleeved on the middle segment of the output shaft (8) and is fixedly connected with the output shaft (8) through a cylindrical pin.

[0006] (Three) beneficial effects The application provides a stepless transmission device based on a crank slider mechanism, and realizes the stepless transmission device with high transmission precision, small power loss and fast response speed, which is the striving goal of mechanical engineers in the transmission field for several generations, but has not been broken through due to the limitation of the existing design idea, and the stepless transmission device is designed by integrating a crank connecting rod, a slider, a guide rail and a gear pair structure into a servo control system according to the working principle of the crank connecting rod mechanism, so that the problem is solved. DRAWINGS

[0007] Figure 1 It is a side view of the stepless transmission device. Figure 2 It is a structure schematic view (side view) of a multi-head crank connecting rod slider mechanism parallel output. Figure 3 It is a structure schematic view (top view) of a multi-head crank connecting rod slider mechanism parallel output. Figure 4 It is a structure schematic view (3D) of a multi-head crank connecting rod slider mechanism parallel output. Figure 5 It is a structure schematic view (projection) of a multi-head crank connecting rod slider mechanism parallel output. DETAILED DESCRIPTION

[0008] In order to make the purpose, content and advantages of the present application more clear, the specific embodiments of the present application are described in further detail below in combination with the drawings and examples.

[0009] The application discloses a kind of based on slider-crank mechanism's continuously variable transmission, and the device can be through adjusting crank driving arm control slider linear velocity's motion characteristics by application slider-crank mechanism, and continuously variable transmission of integrated crank connecting rod, slider, guide rail, gear pair structure and integrated servo control system is designed.It realizes large speed ratio continuously variable transmission, and the characteristics are that transmission ratio is large, output precision is high, transmission power is large, response speed is fast.It can realize the conversion of larger range input speed to constant speed output.And according to different working conditions, a series of products can be developed.The device includes: input shaft (1) is fixed by embedding the bearing hole of the inner wall of the transmission device through the rolling bearing of the shaft shoulder of both ends of shaft, driving wheel (2) is fixed in input shaft (1);Torque adjusting mechanism (3) is sleeved on the radial spoke guide rail of driving wheel (2) by built-in linear motor;Control signal is transmitted to the built-in linear motor of torque adjusting mechanism (3) through slip ring, and torque adjusting mechanism (3) is controlled to move along radial spoke guide rail;The crank of slider-crank mechanism (4) is connected with torque adjusting mechanism (3) by joint bearing;The crank of slider-crank mechanism (4) is also connected with slider by joint bearing;The slider of slider-crank mechanism (4) is connected with rack of driving rack group (5);The gear inner ring of driven gear set (6) is fixedly connected with single-phase groove wheel mechanism (7);The inner ring of single-phase groove wheel mechanism (7) is fixedly connected with output shaft (8);Flywheel mechanism (9) is sleeved on the middle segment of output shaft (8) and is fixedly connected with output shaft (8) by cylindrical pin.

[0010] The purpose of the present application is to provide a kind of based on slider-crank mechanism's continuously variable transmission, which can realize large speed ratio high efficiency high precision constant speed output continuously variable transmission.

[0011] The application discloses a kind of based on slider-crank mechanism's continuously variable transmission, and the device can be through adjusting crank driving arm control slider linear velocity's motion characteristics by application slider-crank mechanism, and continuously variable transmission of integrated crank connecting rod, slider, guide rail, gear pair structure and integrated servo control system is designed.It realizes large speed ratio continuously variable transmission, and the characteristics are that transmission ratio is large, output precision is high, transmission power is large, response speed is fast.It can realize the conversion of larger range input speed to constant speed output.And according to different working conditions, a series of products can be developed.The device includes: input shaft (1) is fixed by embedding the bearing hole of the inner wall of the transmission device through the rolling bearing of the shaft shoulder of both ends of shaft, driving wheel (2) is fixed in input shaft (1);

[0012] Input shaft (1) is fixed by embedding the bearing hole of the inner wall of the transmission device box through the rolling bearing of the shaft shoulder of both ends of shaft, driving wheel (2) is fixed in input shaft (1); The variable torque adjusting mechanism (3) is sleeved on the radial spoke guide rail of the driving wheel (2) by a linear motor; the control signal is transmitted to the linear motor in the variable torque adjusting mechanism (3) through a slip ring, and the variable torque adjusting mechanism (3) is controlled to move along the radial spoke guide rail, so that the driving fulcrum position of the crank slider mechanism (4) is changed, and the movement speed of the slider of the crank slider mechanism (4) is changed; The crank of the crank slider mechanism (4) is connected with the variable torque adjusting mechanism (3) through a joint bearing; the crank of the crank slider mechanism (4) is also connected with the slider through a joint bearing; the slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5); The rack of the driving rack set (5) is engaged with the gear of the driven gear set (6), so that the reciprocating linear motion of the rack is converted into the reciprocating rotary motion of the gear; The inner ring of the gear of the driven gear set (6) is fixedly connected with the single-phase groove wheel mechanism (7), the outer ring of the single-phase groove wheel mechanism (7) rotates synchronously with the gear of the driven gear set (6); the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected with the output shaft (8); when the gear of the driven gear set (6) reciprocates, the single-phase groove wheel mechanism (7) only transmits unidirectional rotation to the output shaft (8) to make the output shaft (8) rotate unidirectionally; the output shaft (8) is fixedly embedded in the bearing hole of the inner wall of the transmission device box through the rolling bearings on the shaft shoulders; The flywheel mechanism (9) is sleeved on the middle segment of the output shaft (8) and is fixedly connected with the output shaft (8) through a cylindrical pin.

[0013] According to an embodiment of the continuously variable transmission device, the continuously variable transmission device is installed in the inner wall of the transmission device box, and the inner wall of the transmission device box is provided with a pressure regulating mechanism and a lubricating system.

[0014] According to an embodiment of the continuously variable transmission device, the energy outside the transmission device box is input in the form of rotary motion, is converted into torque by the actuating mechanism, and is transmitted to the input shaft (1).

[0015] According to an embodiment of the continuously variable transmission device, the driving wheel (2) is fixed to the input shaft (1) in a key connection manner.

[0016] According to an embodiment of the continuously variable transmission device, the continuously variable transmission device further comprises a control feedback system for outputting corresponding control signals according to the set output rotation speed and different working conditions.

[0017] According to an embodiment of the continuously variable transmission device, the slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5) through a bolt.

[0018] According to an embodiment of the continuously variable transmission of the application, the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected to the output shaft (8) by a key.

[0019] According to an embodiment of the continuously variable transmission of the application, the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected to the output shaft (8) by a key.

[0020] According to an embodiment of the continuously variable transmission of the application, the n crank-link slider mechanisms have a phase difference of 360 degrees divided by 2n between the 2n variable-torque adjusting mechanisms (3).

[0021] According to an embodiment of the continuously variable transmission of the application, the control feedback system senses the change in input rotational speed through a speed sensor installed on the input shaft (1) and drives the variable-torque adjusting mechanism (3) installed on the driving wheel (2) to change the position of the crank driving fulcrum of the crank slider mechanism (4) on the radial spoke of the driving wheel (2) according to the output signal of the control program. The change in the position of the crank driving fulcrum on the spoke of the driving wheel (2) causes the distance between the crank driving fulcrum and the center of the driving wheel (2) to change, thereby changing the crank length of the mechanism, which in turn changes the linear speed of the slider and is transmitted to the output shaft (8) to be converted into angular velocity output through the gear-rack conversion, thereby achieving variable-speed transmission.

[0022] The application achieves a continuously variable transmission with high transmission accuracy, small power loss, and fast response speed, which is the goal of mechanical engineers in the field of transmission for several generations. However, due to the limitations of existing design ideas, there has been no breakthrough. The application applies the working principle of the crank-link mechanism to design a continuously variable transmission by integrating the crank-link, slider, guide rail, and gear pair structure into a servo control system, thereby solving this problem.

[0023] Embodiment 1: Figure 1 As shown in the side view of the large-speed-ratio continuously variable transmission of the application, Figure 1 As shown in the side view of the large-speed-ratio continuously variable transmission of the application,

[0024] As shown in the side view of the large-speed-ratio continuously variable transmission of the application, Figure 1As shown in the figure, the structure assembly of the large speed ratio continuously variable transmission device is installed in a closed transmission device box (the pressure regulating mechanism and lubrication system are arranged in the box), the energy from outside is input in the form of rotary motion through the actuator and is converted into torque to be transmitted to the input shaft (1), the specific structure form is that the input torque from outside (such as the wind vane shaft of a wind turbine) is transmitted to the input shaft (1) through gear transmission, the input shaft (1) is fixed by rolling bearings on the shaft shoulders at both ends embedded in the bearing holes in the inner wall of the transmission device box, the driving wheel (2) is fixed on the input shaft (1) in a keyed manner. The variable torque adjusting mechanism (3) is sleeved on the radial spoke guide rail of the driving wheel (2) with a built-in linear motor. The control feedback system outputs corresponding control signals according to the calculation results of the control program according to the set output speed and different working conditions, the control signals are transmitted to the built-in linear motor of the variable torque adjusting mechanism (3) through a slip ring and control the movement of the linear motor along the radial spoke guide rail of the driving wheel (2), which changes the crank driving fulcrum position of the crank slider mechanism (4) and changes the movement speed of the slider. The crank of the crank slider mechanism (4) is connected with the variable torque adjusting mechanism (3) through a joint bearing; the crank of the crank slider mechanism (4) is also connected with the slider through a joint bearing. The slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5) through a bolt. The rack of the driving rack set (5) is engaged with the gear of the driven gear set (6) to convert the reciprocating linear motion of the rack into the reciprocating rotary motion of the gear. The inner ring of the gear of the driven gear set (6) is connected with the single-phase geneva mechanism (7) through a key to ensure that the outer ring of the single-phase geneva mechanism (7) rotates synchronously with the gear of the driven gear set (6); the inner ring of the single-phase geneva mechanism (7) is connected with the output shaft (8) through a key. When the gear of the driven gear set (6) reciprocates, the single-phase geneva mechanism (7) only transmits unidirectional rotation to the output shaft (8) to make it rotate in one direction. The output shaft (8) is fixed by rolling bearings on the shaft shoulders at both ends embedded in the bearing holes in the inner wall of the transmission device box. The flywheel mechanism (9) is sleeved on the middle segment of the output shaft (8) and is connected with the output shaft (8) through a cylindrical pin.

[0025] As Figure 1 shown in the figure, the working principle of the large speed ratio constant speed output continuously variable transmission device is briefly described as follows: The random change of the external input energy causes the change of the torque and is embodied as the change of the input shaft (1) rotating speed. The control feedback system senses the change of the input rotating speed through the speed sensor installed on the input shaft (1) and drives the variable torque adjusting mechanism (3) installed on the driving wheel (2) to change the position of the crank driving fulcrum of the crank slider mechanism (4) on the radial spoke of the driving wheel (2) according to the output signal of the control program, the change of the position of the crank driving fulcrum on the radial spoke of the driving wheel (2) causes the change of the distance between the crank driving fulcrum and the center of the driving wheel (2), i.e. the change of the diameter, the change of the diameter causes the change of the linear speed of the crank driving fulcrum and transmits the motion along the crank to the driving rack of the driving rack set (5), the rack of the driving rack set (5) is engaged with the gear of the driven gear set (6) to convert the reciprocating linear motion of the rack into the reciprocating rotary motion of the gear and convert the speed change of the rack into the rotating speed change of the gear of the driven gear set (6) so as to realize the stepless speed change of the mechanism. According to the mechanical principle, the motion track of the driving rack of the driving rack set (5) is an oval curve; the speed change is a sine curve. The single-phase slot wheel mechanism (7) can only transmit the maximum linear speed of the driving rack set (5) to the gear of the driven gear set (6) and output through the output shaft (8) connected by the key.

[0026] Figures 1-5 As shown in the structural schematic view of the multi-head crank connecting rod slider mechanism parallel output, Figures 1-5 In order to ensure the smoothness of the output rotating speed, the large speed ratio constant speed output stepless speed changer adopts the parallel output of the 2n-head crank connecting rod slider mechanism, two sets of driving wheels (2) are arranged at an angle of 180° and two groups of variable torque adjusting mechanisms (3) are arranged in each set, and the phase difference of the four groups of variable torque adjusting mechanisms (3) is 90°, in order to improve the smoothness of the output rotating speed, the number of the driving wheels (2) can be increased, such as three driving wheels (2) and six sets of executing mechanisms or four driving wheels (2) and eight sets of executing mechanisms. In this way, the maximum speed output point of the output shaft (8) can be increased along the 360-degree division of the output shaft to improve the smoothness of the rotating speed output. For n driving wheels and 2n variable torque adjusting mechanisms (3), the corresponding phase difference is 360 degrees divided by 2n.

[0027] As shown in the structural schematic view of the multi-head crank connecting rod slider mechanism parallel output, Figures 1-5 In the working process of the above large speed ratio constant speed output stepless speed changer, the control feedback system senses the input rotating speed in real time and controls the output rotating speed to ensure the specified output rotating speed. In order to further ensure the stability of the speed output, the flywheel mechanism (9) is sleeved on the output shaft (8) to reduce the speed fluctuation of the output rotating speed by using the gyro effect of the inertia of the flywheel and improve the smoothness of the output rotating speed.

[0028] Example 2: A large speed ratio continuously variable transmission device, comprising: at least one crank slider mechanism, the crank slider mechanism comprising: an input shaft (1), a driving wheel (2), a torque adjustment mechanism (3), a crank slider mechanism (4), a driving rack set (5), a driven gear set (6), a single-phase groove wheel mechanism (7), an output shaft (8), and a flywheel mechanism (9); the input shaft (1) is fixed by rolling bearings on the shaft shoulders at both ends of the shaft into the bearing holes in the inner wall of the transmission device box, the driving wheel (2) is fixed on the input shaft (1); the torque adjustment mechanism (3) is sleeved on the radial spoke guide rail of the driving wheel (2) with a built-in linear motor; the control signal is transmitted to the built-in linear motor of the torque adjustment mechanism (3) through a slip ring, and the torque adjustment mechanism (3) is controlled to move along the radial spoke guide rail to change the crank driving fulcrum position of the crank slider mechanism (4) and change the movement speed of the slider of the crank slider mechanism (4); the crank of the crank slider mechanism (4) is connected with the torque adjustment mechanism (3) through a joint bearing; the crank of the crank slider mechanism (4) is also connected with the slider through a joint bearing; the slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5); the rack of the driving rack set (5) is engaged with the gear of the driven gear set (6) to convert the reciprocating linear motion of the rack into the reciprocating rotary motion of the gear; the inner ring of the gear of the driven gear set (6) is fixedly connected with the single-phase groove wheel mechanism (7), the outer ring of the single-phase groove wheel mechanism (7) rotates synchronously with the gear of the driven gear set (6); the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected with the output shaft (8); when the gear of the driven gear set (6) reciprocates, the single-phase groove wheel mechanism (7) only transmits unidirectional rotation to the output shaft (8) to make it rotate unidirectionally, the output shaft (8) is fixed by rolling bearings on the shaft shoulders at both ends of the shaft into the bearing holes in the inner wall of the transmission device box, and the flywheel mechanism (9) is sleeved on the middle segment of the output shaft (8) and fixedly connected with the output shaft (8) through a cylindrical pin.

[0029] Further, the large speed ratio continuously variable transmission device is installed in a closed transmission device box, a pressure regulating mechanism and a lubrication system are arranged in the transmission device box.

[0030] Further, the energy outside the transmission device box is input in the form of rotary motion through an actuator to be converted into torque and transmitted to the input shaft (1).

[0031] Further, the driving wheel (2) is fixed on the input shaft (1) in a key connection manner.

[0032] Further, it further comprises a control feedback system for outputting corresponding control signals according to the set output rotation speed and different working conditions.

[0033] Further, the slider of the crank slider mechanism (4) is connected with the rack of the driving rack set (5) through a bolt.

[0034] Further, the gear inner ring of the driven gear set (6) is fixedly connected with the single-phase groove wheel mechanism (7) through a key.

[0035] Further, the inner ring of the single-phase groove wheel mechanism (7) is fixedly connected with the output shaft (8) through a key.

[0036] Further, the n crank connecting rod slider mechanisms are provided, and the phase difference of the 2n variable torque adjusting mechanisms (3) of the n crank connecting rod slider mechanisms is 360 degrees divided by 2n.

[0037] Further, the control feedback system senses the change of the input rotating speed through the speed sensor installed on the input shaft (1) and drives the variable torque adjusting mechanism (3) installed on the driving wheel (2) to change the position of the crank driving fulcrum of the crank slider mechanism (4) on the driving wheel (2) along the radial spoke according to the output signal of the control program, and the change of the position of the crank driving fulcrum on the spoke of the driving wheel (2) causes the change of the distance between the crank driving fulcrum and the axis of the driving wheel (2), so that the crank length of the mechanism is changed, and then the linear speed of the slider is changed and transmitted to the output shaft (8) to realize the variable speed transmission by converting the linear speed into the angular speed output through the gear and rack.

[0038] The continuously variable transmission with large speed ratio and high efficiency constant speed output in a limited structure volume is the goal of mechanical engineers in the transmission field for several generations, but there is no breakthrough due to the existing design idea, and the continuously variable transmission is solved by the continuously variable transmission device designed by integrating the crank connecting rod, slider, guide rail and gear pair structure into a servo control system according to the working principle of the crank connecting rod mechanism.

[0039] Advantages: The continuously variable transmission device with high transmission precision, small power loss and fast response speed realizes the continuously variable transmission with large speed ratio and high efficiency constant speed output in a limited structure volume, which is the goal of mechanical engineers in the transmission field for several generations, but there is no breakthrough due to the existing design idea, and the continuously variable transmission is solved by the continuously variable transmission device designed by integrating the crank connecting rod, slider, guide rail and gear pair structure into a servo control system according to the working principle of the crank connecting rod mechanism.

[0040] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A continuously variable transmission device based on a crank-slider mechanism, characterized in that, The continuously variable transmission includes at least n sets of crank-connecting rod-slider mechanisms, where n is a positive integer and n≥1. The crank-connecting rod-slider mechanism includes: input shaft (1), drive wheel (2), torque adjustment mechanism (3), crank-slider mechanism (4), drive rack group (5), driven gear group (6), single-phase slotted wheel mechanism (7), output shaft (8), and flywheel mechanism (9). The input shaft (1) is fixed by the rolling bearings of the shaft shoulders at both ends of the shaft embedded in the bearing holes in the inner wall of the gearbox, and the drive wheel (2) is fixed on the input shaft (1). The torque adjustment mechanism (3) has a built-in linear motor that is sleeved on the radial spoke guide rail of the drive wheel (2). The control signal is transmitted to the built-in linear motor of the torque adjustment mechanism (3) through the slip ring and controls the torque adjustment mechanism (3) to move along the radial spoke guide rail to change the position of the crank drive fulcrum of the crank slider mechanism (4) and change the movement speed of the slider of the crank slider mechanism (4). The crank of the crank-slider mechanism (4) is connected to the torque adjustment mechanism (3) via a joint bearing; the crank and slider of the crank-slider mechanism (4) are also connected via a joint bearing; the slider of the crank-slider mechanism (4) is connected to the rack of the drive rack assembly (5); The rack of the drive rack assembly (5) meshes with the gear of the driven gear assembly (6) to convert the reciprocating linear motion of the rack into the reciprocating rotational motion of the gear; The inner ring of the driven gear set (6) is fixedly connected to the single-phase Geneva mechanism (7), and the outer ring of the single-phase Geneva mechanism (7) rotates synchronously with the gear of the driven gear set (6); the inner ring of the single-phase Geneva mechanism (7) is fixedly connected to the output shaft (8); when the gear of the driven gear set (6) reciprocates, the single-phase Geneva mechanism (7) only transmits unidirectional rotation to the output shaft (8) so that it can only rotate in one direction, and the output shaft (8) is fixed by the rolling bearings of the shaft shoulders at both ends of the shaft embedded in the bearing holes of the gearbox. The flywheel mechanism (9) is sleeved on the middle section of the output shaft (8) and fixedly connected to the output shaft (8) by a cylindrical pin.

2. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The continuously variable transmission (CVT) is installed on the inner wall of the transmission housing, and the inner wall of the transmission housing is equipped with a pressure regulating mechanism and a lubrication system.

3. The continuously variable transmission device based on a crank-slider mechanism as described in claim 2, characterized in that, The energy from the outside of the gearbox is input in the form of rotational motion and converted into torque by the actuator, which is then transmitted to the input shaft (1).

4. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The drive wheel (2) is fixed to the input shaft (1) by a key connection.

5. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The slider of the crank-slider mechanism (4) is connected to the rack of the drive rack assembly (5) by bolts.

6. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The inner ring of the driven gear set (6) is fixedly connected to the single-phase grooved wheel mechanism (7) by a key.

7. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The inner ring of the single-phase grooved wheel mechanism (7) is fixedly connected to the output shaft (8) by a key.

8. The continuously variable transmission device based on a crank-slider mechanism as described in claim 1, characterized in that, The phase difference between the n crank-connecting rod-slider mechanism and the 2n torque adjustment mechanism (3) of the n crank-connecting rod-slider mechanism is 360 degrees divided by 2n.

9. The continuously variable transmission device based on a crank-slider mechanism as described in any one of claims 1-8, characterized in that, The continuously variable transmission (CVT) also includes a control feedback system, which outputs corresponding control signals based on the set output speed and different operating conditions.

10. The continuously variable transmission device based on a crank-slider mechanism as described in claim 9, characterized in that, The control feedback system senses the change in input speed through the speed sensor installed on the input shaft (1) and drives the torque adjustment mechanism (3) installed on the drive wheel (2) according to the output signal of the control program to change the position of the crank drive fulcrum of the crank-slider mechanism (4) on the radial spokes of the drive wheel (2). The change in the position of the crank drive fulcrum on the spokes of the drive wheel (2) causes the distance from the crank drive fulcrum to the axis of the drive wheel (2) to change, thereby changing the crank length of the mechanism, and thus realizing the change of the linear velocity of the slider and transmitting it to the output shaft (8) to convert it into angular velocity output through gear and rack to realize speed change transmission.

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