Stepless speed change device and vehicle

Abstract

The invention relates to a stepless speed change device and a vehicle, the stepless speed change device comprises a driving disc and a driven disc, a plurality of mounting hole groups are sequentially distributed on the driving disc along the radial direction of the driving disc, each mounting hole group comprises a plurality of mounting hole channels which are sequentially arranged along the circumferential direction, and each mounting hole channel is internally provided with a top tooth; a plurality of joint hole sets are sequentially distributed in the driven disc in the radial direction of the driven disc, and each joint hole set comprises a plurality of joint notches sequentially formed in the circumferential direction. And the operation assembly can selectively act on one or two or more top teeth of the mounting hole groups in different radial positions on the driving disc, so that the corresponding top teeth are inserted into the joint notches of the driven disc to drive the driven disc to rotate. The invention has the advantages of simple structure, low processing cost, capability of bearing high torque, rigid connection in meshing mode and stable power transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of continuously variable transmission devices, and in particular to a continuously variable transmission device and a vehicle. Background Art

[0002] The transmission is a mechanism used to change the speed and torque from the power output device, and can fix or change the transmission ratio of the output shaft and the input shaft, such as the gearbox device of a motor vehicle, the sprocket chain transmission device of a bicycle, and the transmission device used in other mechanical equipment.

[0003] Motor vehicle gearboxes have the functions of achieving reverse, changing the transmission ratio to adapt to different driving conditions, and cutting off the power transmission by neutral gear without stalling. They are widely used in the field of internal combustion engines. According to the number of transmission ratios, gearboxes can be divided into three types: stepped, stepless and comprehensive. According to the number of transmission shafts, they can be divided into two-shaft and three-shaft types; according to the operation mode, they can be divided into manual transmission (MT) and automatic transmission, and automatic transmission can be divided into AT, AMT, DCT (DSG), CVT, etc. Manual transmissions are mainly composed of gears and shafts, and speed and torque are changed through different gear combinations; while automatic transmissions are mainly composed of torque converters, planetary gears, hydraulic pitch systems and hydraulic control systems, and speed and torque are changed through hydraulic transmission and gear combinations. Manual MT transmissions have the advantages of direct and reliable power transmission, durability, fuel saving and low price, but they have slow shifting speed, strong shifting frustration, complex operation and easy stalling. Automatic transmissions, such as the existing CVT (Continuously Variable Transmission) transmissions, replace traditional gears with a pair of pulleys (driving wheel and driven wheel) and a steel belt. Each pulley is a V-shaped structure composed of two conical discs. One pulley is connected to the engine crankshaft as the driving wheel, and the other pulley is the driven wheel, which is connected to the differential shaft to drive the wheels. The power output from the engine output shaft is first transmitted to the driving wheel of the CVT, and then transmitted to the driven wheel through the V-shaped transmission belt; for cars, it is finally transmitted to the wheels through the reducer and differential to drive the car. During operation, the working radius of the driving wheel and the driven wheel cone surface meshing with the V-shaped transmission belt is changed by axial movement of the movable disc of the driving wheel and the driven wheel, thereby changing the transmission ratio. Since the working radius of the driving wheel and the driven wheel can be adjusted continuously, stepless speed change is achieved. For example, the Chinese utility model patent application with application number CN201620381386.X (authorization announcement number: CN205578649U) discloses a continuously variable transmission of this structure. However, the existing CVT continuously variable transmission mechanism also has certain shortcomings. Since the CVT continuously variable transmission mechanism uses a steel belt or steel chain to transmit power through friction, it will inevitably slip, and it cannot withstand high torque and cannot be driven vigorously. For example, when the accelerator is deeply stepped on, the steel belt and steel chain transmission will slip more seriously when the torque is suddenly increased, and may even break.

[0004] The speed change device of a bicycle changes the speed by changing the coordination between the chain and the front and rear gear plates of different sizes. The size of the front and rear gear plates determines the force of the bicycle when the pedals are rotated. The larger the front gear plate and the smaller the rear gear plate, the more effort it feels to pedal. The smaller the front gear plate and the larger the rear gear plate, the easier it feels to pedal. According to the ability of different riders, the speed of the bicycle can be adjusted by adjusting the size of the front and rear gear plates, or to cope with different road sections and road conditions. However, this type of bicycle can only change speed when the sprocket and chain are moving during riding. Forcing the speed change when stationary will damage the speed change device, and there will be obvious frustration when changing speed. Sometimes, shifting the gear too fast or too slow will cause the sprocket and the wheel to not be well connected, resulting in the chain falling off.

[0005] The speed change devices used in mechanical equipment mostly adopt multi-gear meshing mode for graded speed regulation or electric motor stepless speed regulation. It is relatively difficult to use mechanical stepless speed regulation with stable power output and high torque in special circumstances such as when there is no power facility or the stepless speed regulation of the electric motor cannot be used.

[0006] Therefore, the existing continuously variable transmission device also needs further improvement. Summary of the invention

[0007] The first technical problem to be solved by the present invention is to provide a continuously variable transmission device that can withstand high torque, has a rigid connection in meshing mode and has stable power transmission in view of the current status of the prior art.

[0008] The second technical problem to be solved by the present invention is to provide a vehicle using the above-mentioned continuously variable transmission device in view of the current status of the prior art.

[0009] The technical solution adopted by the present invention to solve the first technical problem is:

[0010] A continuously variable transmission device, comprising:

[0011] A driving disk, the driving disk can rotate around its own axis under the drive of an external power source, and the driving disk is provided with a plurality of mounting hole groups arranged in sequence along its radial direction, each mounting hole group includes a plurality of mounting channels arranged in sequence along a circumferential direction with the center of the driving disk as the center of the circle, and each mounting channel penetrates the driving disk in a direction parallel to the axial direction of the driving disk;

[0012] The driven disk is arranged adjacent to the driving disk, and the axes of the two are parallel. The driven disk is provided with a plurality of engagement hole groups arranged in sequence along the radial direction on one side facing the driving disk, and each engagement hole group includes a plurality of engagement notches arranged in sequence along the circumferential direction with the center of the driven disk as the center of the circle;

[0013] A plurality of top teeth are provided in the mounting holes, and can reciprocate along the extending direction of the mounting holes. Each top tooth has a first state of being inserted into the engaging recess of the driven disk and a second state of being disengaged from the engaging recess of the driven disk as its position in the mounting holes changes.

[0014] The operating assembly can selectively act on one or two or more top teeth of the mounting hole groups located at different radial positions on the driving disc, so that the corresponding top teeth are inserted into the engaging recesses of the driven disc to drive the driven disc to rotate.

[0015] As an improvement, it also includes a reset member, which can act on the top tooth and make the top tooth always have a tendency to move away from the driven disk and escape from the engagement notch of the driven disk;

[0016] The reset member is a magnetic member arranged on the driving disk, and the top teeth are magnetic conductive members that can be attracted by the magnetic member; or the reset member is an elastic member arranged in each installation channel of the driving disk. The magnetic member can be a permanent magnet or an electromagnet arranged on the driving disk.

[0017] In order to facilitate the installation of components such as the reset member and the top gear, the driving disk includes a disk body and a cover body correspondingly covered in the axial direction of the driving disk. The disk body is also provided with an annular groove located at the periphery of the mounting hole and connected to the mounting hole at a position corresponding to each mounting hole. The annular groove forms a limiting step at a position where it connects with the mounting hole portion on the disk body. The outer peripheral wall of the top gear has a limiting convex portion protruding outward in its radial direction. The elastic member can adopt various existing technologies and can include various elastic elements such as compression springs, torsion springs, and spring leaves. However, in order to better cooperate with the top gear, the elastic member is a spring, which is sleeved on the top gear, and one end of the spring abuts against the limiting convex portion, and the other end abuts against the limiting step.

[0018] or

[0019] A groove is provided on the inner wall of the mounting hole of the driving disk, and an elastic retaining ring or a snap ring is installed in the groove to cooperate with the driving disk to limit the moving path range of the top gear.

[0020] As an improvement, the top teeth are spherical or quasi-spherical in structure as a whole; or

[0021] The top teeth are rod-shaped as a whole, and have a first end and a second end relative to each other in the length direction, wherein the second end is adjacent to the driven disk, and the first end is away from the driven disk, and the first end of each top tooth is configured as an outwardly convex arc surface structure, and the second end of each top tooth is configured as a cone head structure or a ball head structure that can adapt to the engagement recess on the driven disk to transmit power in the circumferential direction.

[0022] As an improvement, each top tooth located in the same mounting hole group has at least two top teeth connected together, thereby forming a top tooth group that can move synchronously along the mounting hole channel.

[0023] As a further improvement, each top tooth in the same mounting hole group is rod-shaped and is fixed together by a connecting ring at the end away from the driven disc.

[0024] As an improvement, the driving disk and the driven disk are circular disks, square disks, semicircular disks or elliptical disks, and the relative joint surfaces of the driving disk and the driven disk are both parallel plane structures; or

[0025] The driving disc and the driven disc are both of conical structure, and the relative joint surfaces of the driving disc and the driven disc are both of conical surfaces.

[0026] As an improvement, the driving disk and the driven disk are both conical structures, the relative mating surfaces of the driving disk and the driven disk are both conical surfaces, there are two driven disks arranged at intervals, and the axes of the two driven disks are parallel, the driving disk is located between the two driven disks, and can form a transmission fit with the two driven disks.

[0027] As an improvement, the operating assembly includes an operating block, which is located on the side of the driving disk away from the driven disk and can be moved to a position corresponding to a mounting hole group located at different radial positions on the driving disk, and acts on one or two or more top teeth in each mounting hole channel of the same mounting hole group, so that the corresponding parts of each top tooth are inserted into the corresponding engagement recess of the driven disk in turn to drive the driven disk to rotate.

[0028] The operating block can be selected in a suitable structural form according to actual needs. Specifically, the operating block includes a first fixed seat and a spherical roller rotatably arranged on the first fixed seat through a first pin shaft; or

[0029] The operating block includes a second fixed seat and a rolling ball which is limited in rolling position on the second fixed seat; or

[0030] The operating block includes a third fixed seat and a top block arranged on the third fixed seat, and the portion of the top block used to abut against the top tooth is correspondingly constructed as a curved surface structure suitable for generating sliding contact or rolling cooperation with the top tooth in the radial and circumferential directions of the driving disk.

[0031] As an improvement, the driving disk and the driven disk are each one of a circular disk, a square disk, a semicircular disk, and an elliptical disk, and the relative engagement surfaces of the driving disk and the driven disk are both parallel plane structures; or, the driving disk and the driven disk are both conical structures, and the relative engagement surfaces of the driving disk and the driven disk are both conical surfaces; or, the driving disk and the driven disk are both conical structures, and the relative engagement surfaces of the driving disk and the driven disk are both conical surfaces, and the driven disk has at least two spaced apart arrangements, and the driving disk is located between the driven disks and can form a transmission fit with the driven disks;

[0032] The driving disc and the driven disc that cooperate with each other constitute a transmission disc group, and the transmission disc group has two symmetrically arranged ones, the driving discs of the two transmission disc groups are driven by the same driving source, and the driven discs of the two transmission disc groups are connected to the same motion load;

[0033] The operating assembly is located between the two transmission disc groups and acts on the top teeth of the two transmission disc groups synchronously; or there are two groups of operating assemblies, which are respectively arranged on two sides of the two transmission disc groups that are far away from each other.

[0034] It is understandable that the above-mentioned driving disk, driven disk, and operating assembly can be one or more, and can be arranged in a horizontal arrangement, a longitudinal arrangement, or a circumferential arrangement. When both the driving disk and the driven disk adopt a conical structure, one driving disk can be matched with one driven disk, or it can be matched with two or more (such as four) driven disks, wherein each driven disk is sequentially arranged on the periphery of the driving disk along the circumferential direction. Of course, when the driving disk adopts one of a circular disk, a square disk, a semicircular disk, and an elliptical disk, the driven disk can also adopt a conical structure, that is, one of the mating surfaces of the driving disk and the driven disk is a plane, and the other is a conical surface. Conversely, it is also possible: when the driven disk adopts one of a circular disk, a square disk, a semicircular disk, and an elliptical disk, the driving disk can also adopt a conical structure.

[0035] The input end of the driving disk and the output end of the driven disk are interchangeable, that is, the driving disk and the driven disk both receive external kinetic energy and output kinetic energy to the outside.

[0036] In order to facilitate the connection with the external speed-shifting mechanism to drive the operating block to move stably, an operating rod connected to the operating block is also included, and the operating rod is used to connect with the external speed-shifting mechanism to drive the operating block to move. The external speed-shifting mechanism can be a manual shifting lever of a manual transmission motor vehicle, a shifting actuator of an automatic transmission vehicle, or a "finger shifting structure" for executing a shifting operation of a bicycle.

[0037] As another structural form of the operating component, the operating component includes multiple driving rods corresponding to different mounting hole groups and a driving mechanism that can selectively drive one of the driving rods to act on one or two or more top teeth in the corresponding mounting hole group on the driving disk, and the driving mechanism is an electric driving mechanism or a hydraulic driving mechanism.

[0038] Generally speaking, a drive disc and a driven disc that cooperate with each other to form a transmission disc group can meet the requirements. However, in order to ensure the stability and reliability of the speed change operation of the speed change device, the drive disc and the driven disc that cooperate with each other form a transmission disc group. The transmission disc group has two symmetrically arranged drive discs of the two transmission disc groups. The drive discs of the two transmission disc groups are driven by the same driving source, and the driven discs of the two transmission disc groups are connected to the same motion load.

[0039] The operating assembly is located between the two transmission disc groups and acts on the top teeth of the two transmission disc groups synchronously; or there are two groups of operating assemblies, which are respectively arranged on two sides of the two transmission disc groups that are far away from each other.

[0040] In order to ensure the stability of power transmission and reduce the wear between the components during the transmission process, lubricating oil holes or lubricating oil grooves are opened on the driving plate, the driven plate and the top gear. Lubrication is performed by splash lubrication, pressure lubrication, wet lubrication, oil seal lubrication and the like.

[0041] As an improvement, the outer peripheral wall of the driving disc is also provided with a circle of first transmission teeth for transmission cooperation with an external driving source, and the outer peripheral wall of the driven disc is also provided with a circle of second transmission teeth for transmission connection with an external motion load. Of course, it is conceivable that the transmission cooperation with an external driving source can be achieved by providing a power input shaft coaxially connected to the driving disc and providing corresponding gears on the power input shaft, and the transmission cooperation with an external motion load can be achieved by providing a power output shaft coaxially connected to the driving disc and providing corresponding gears on the power output shaft.

[0042] The driven disc may be an integral piece of an integral design, but in order to facilitate the processing of the driven disc and reduce costs, the driven disc includes a plurality of coaxially connected and sequentially sleeved gear rings, and each gear ring has a corresponding set of engagement holes on the side wall facing the driving disc; or

[0043] The driven plate comprises a plurality of coaxially connected gears with different radial sizes arranged in a stepped manner, and the tooth grooves on the outer peripheral wall of each gear constitute a group of engaging holes.

[0044] As an improvement, the driving disc, the driven disc and the top gear are provided with lubricating oil holes or lubricating oil grooves or weight-reducing hole grooves, and lubrication is performed by at least one of splash lubrication, pressure lubrication, wet lubrication and oil seal lubrication. In order to facilitate the assembly and lubrication of the driving disc, the driven disc, the top gear and the operating assembly, at least one of the driving disc, the driven disc, the top gear and the operating assembly is a combined component that can be disassembled into multiple parts.

[0045] The technical solution adopted by the present invention to solve the second technical problem is: a vehicle, including a transmission device, wherein the transmission device adopts the above-mentioned continuously variable transmission device. The above-mentioned vehicle can be a motor vehicle or a bicycle.

[0046] Compared with the prior art, the advantages of the present invention are as follows: by controlling the operating assembly, the top teeth at different radial positions on the driving disc can be matched with the corresponding engagement notches on the driven disc, and the transmission radius of the driving disc and the driven disc can be changed to realize stepless speed change. The stepless speed change device has a simple structure, a small volume, convenient processing, repair and maintenance, direct and reliable power transmission, can withstand high torque, and can realize stepless speed change. Unlike the steel belt / steel chain of the CVT gearbox structure technology in the prior art, which transmits power through friction and is prone to breakage and slipping during "violent driving", the present invention can realize multi-stage and stepless speed change when transmitting power through a rigid connection (simulating gear meshing mode, especially simulating spur gear meshing mode), which can meet the needs of "intense driving". For example, when the accelerator is deeply stepped on and the torque suddenly increases, its power transmission can also maintain the same stability as the gear meshing. On the other hand, the speed change device can realize stepless speed change in a fairly wide range, so that there is no sense of frustration during driving, and it is easier to achieve a balance between the gear ratio, speed ratio, performance, fuel consumption, and exhaust emissions in the transmission system, thereby improving the fuel economy of the whole vehicle. Compared with traditional manual transmission, automatic transmission and CVT transmission, the continuously variable transmission mechanism of the present application combines the advantages of the manual transmission gear meshing rigid connection and the CVT transmission stepless speed change without frustration, and has lower processing and manufacturing costs, and can be better applied to the speed adjustment of motor vehicles. The speed change device is also applicable to bicycles, and can be flexibly adjusted during riding and when stationary, without frustration and chain falling problems, meeting the user's needs for a comfortable riding experience. Of course, for other mechanical equipment that needs speed adjustment, the speed change device can provide an optional solution for special circumstances such as the absence of power facilities or the inability to use multi-stage and stepless speed regulation of motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the three-dimensional structure of the continuously variable transmission device according to the first embodiment of the present invention;

[0048] Figure 2 A top view of a continuously variable transmission device according to embodiment 1 of the present invention;

[0049] Figure 3 It is a rear view of the continuously variable transmission device of embodiment 1 of the present invention;

[0050] Figure 4 It is a right side view of the continuously variable transmission device of embodiment 1 of the present invention;

[0051] Figure 5 for Figure 2 Sectional view at AA in the middle;

[0052] Figure 6 for Figure 2 Sectional view at the middle BB;

[0053] Figure 7 for Figure 3 Sectional view at CC;

[0054] Figure 8a It is a three-dimensional structural schematic diagram of the operating member of the continuously variable transmission device according to the first embodiment of the present invention;

[0055] Figure 8b A front view of an operating member of a continuously variable transmission device according to embodiment 1 of the present invention;

[0056] Fig. 9 It is a schematic diagram of the three-dimensional structure of the top gear of the continuously variable transmission device according to Example 1 of the present invention;

[0057] Fig.10 It is a schematic diagram of the three-dimensional structure of another optional top gear of the continuously variable transmission device according to embodiment 1 of the present invention;

[0058] Fig.11 It is a schematic diagram of the three-dimensional structure of the driven disc of the continuously variable transmission device according to the first embodiment of the present invention;

[0059] Fig.12 It is a schematic three-dimensional structure diagram of another optional driven disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0060] Fig.13a It is a schematic three-dimensional structure diagram of another optional driven disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0061] Fig.13b A front view of another optional driven disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0062] Fig.13c It is a left side view of another optional driven disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0063] Fig.13d for Fig.13c Sectional view at AA in the middle;

[0064] Fig.14 It is a schematic diagram of the three-dimensional structure of the driving disc of the continuously variable transmission device according to Embodiment 1 of the present invention;

[0065] Fig.15 It is a schematic diagram of the three-dimensional structure of another optional driving disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0066] Fig.16 It is a schematic diagram of the three-dimensional structure of another optional driving disc of the continuously variable transmission device of embodiment 1 of the present invention;

[0067] Fig.17 This is a schematic diagram of a three-dimensional structure in which the main body of the continuously variable transmission device according to Embodiment 1 of the present invention is arranged in a transmission housing;

[0068] Fig.18 It is a schematic diagram of the three-dimensional structure of a continuously variable transmission device according to Embodiment 2 of the present invention;

[0069] Fig.19 It is a schematic diagram of the three-dimensional structure of a continuously variable transmission device according to Embodiment 3 of the present invention;

[0070] Fig. 20 It is a schematic diagram of the three-dimensional structure of a continuously variable transmission device according to Embodiment 4 of the present invention;

[0071] Fig.21 The schematic diagram of the structure of the continuously variable transmission device of the present invention in combination with the hydraulic torque converter and the existing CVT reverse gear mechanism (equipped with Fig. 20 Continuously variable transmission in

[0072] Fig. 22 Schematic diagram of the three-dimensional structure of the continuously variable transmission device of embodiment 5 of the present invention (with a group of spherical rollers);

[0073] Fig.23 Schematic diagram of the three-dimensional structure of the continuously variable transmission device of embodiment 5 of the present invention (with two sets of spherical rollers);

[0074] Fig.24 It is a schematic diagram of the three-dimensional structure of a continuously variable transmission device according to Embodiment 6 of the present invention;

[0075] Fig.25 It is a schematic diagram of the three-dimensional structure of a continuously variable transmission device according to Embodiment 7 of the present invention;

[0076] Fig.26 It is a schematic diagram of the three-dimensional structure of the driving disc of the continuously variable transmission device in embodiments 5, 6 and 7 of the present invention;

[0077] Fig. 27 It is a schematic diagram of the three-dimensional structure of the driven disc of the continuously variable transmission device in embodiments 5, 6 and 7 of the present invention;

[0078] Fig.28aIt is a schematic diagram of the three-dimensional structure of another optional driven disc of the continuously variable transmission device in embodiments 5, 6 and 7 of the present invention;

[0079] Fig.28b A front view of another optional driven disc of the continuously variable transmission in embodiments 5, 6 and 7 of the present invention;

[0080] Fig.28c It is a left side view of another optional driven disc of the continuously variable transmission device in embodiments 5, 6 and 7 of the present invention;

[0081] Fig.28d for Fig.28b Sectional view at AA in the middle;

[0082] Fig.29 It is a schematic diagram of the three-dimensional structure of the top gear group of the continuously variable transmission device in embodiments 5, 6 and 7 of the present invention;

[0083] Fig.30 It is a schematic diagram of the three-dimensional structure of another top gear group of the continuously variable transmission in embodiments 5, 6 and 7 of the present invention;

[0084] Fig.31a is a schematic diagram of the three-dimensional structure of another optional operating member of the continuously variable transmission device of the present invention;

[0085] Fig.31b A front view of another optional operating member of the continuously variable transmission device of the present invention;

[0086] Fig.31c for Fig.31b Sectional view at AA in the middle;

[0087] Fig.31d for Fig.31b Sectional view at the middle BB;

[0088] Fig.32 It is a three-dimensional structural schematic diagram of another optional operating member of the continuously variable transmission device of the present invention;

[0089] Fig.33a It is a three-dimensional structural schematic diagram of another optional operating member of the continuously variable transmission device of the present invention;

[0090] Figure 33b A front view of another optional operating member of the continuously variable transmission device of the present invention;

[0091] Fig.34a It is a three-dimensional structural schematic diagram of another optional operating member of the continuously variable transmission device of the present invention;

[0092] Fig.34b A front view of another optional operating member of the continuously variable transmission device of the present invention;

[0093] Fig.34c for Fig.34b Sectional view at AA in the middle;

[0094] Fig.35 It is a three-dimensional structural schematic diagram of the continuously variable transmission device of the present invention installed on a bicycle;

[0095] Fig.36 The figure is another three-dimensional structural schematic diagram of the continuously variable transmission device of the present invention installed on a bicycle. DETAILED DESCRIPTION

[0096] The present invention is further described in detail below with reference to the accompanying drawings.

[0097] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0098] Example 1

[0099] Figure 1-Figure 17 A preferred embodiment of the continuously variable transmission device and vehicle of the present invention is shown. The continuously variable transmission device comprises a support frame 16, a power input shaft 1, a power output shaft 2, a driving disc 3, a driven disc 7 and an operating assembly.

[0100] The support frame 16 is a square frame structure, which includes a first frame bar 161 and a second frame bar 162 arranged oppositely, and a third frame bar 163 and a fourth frame bar 164 arranged oppositely. The extension direction of the first frame bar 161 and the second frame bar 162 is parallel to the axis of the drive disk 3, and the extension direction of the third frame bar 163 and the fourth frame bar 164 is perpendicular to the axis of the drive disk 3. A support rod 11 is connected between the middle of the first frame bar 161 and the middle of the second frame bar 162, and the support rod 11 is used to install an operating component, and the specific structure of the operating component is described below.

[0101] The power input shaft 1 is rotatably disposed on the third frame bar 163 and the fourth frame bar 164 through the first bearing 151, and one end thereof extends out of the support frame 16 to be connected to an external power source. The power output shaft 2 is rotatably disposed on the third frame bar 163 and the fourth frame bar 164 through the second bearing 152, and one end thereof extends out of the support frame 16 to be connected to a moving load. The power input shaft 1 is parallel to the power output shaft 2, and the two are spaced apart in the extension direction of the third frame bar 163 (or the fourth frame bar 164).

[0102] The power input shaft 1 passes through the middle of the driving disc 3, and the two are connected by a key. The driving disc 3 can rotate around its own axis driven by the power output shaft 2. The power output shaft 2 passes through the middle of the driven disc 7, and the two are also connected by a key. The driven disc 7 can be driven to rotate by the driving disc 3, and then the driven disc 7 drives the power output shaft 2 to rotate, transmitting power to the external motion load. In an optional embodiment, it is not necessary to set the power input shaft 1 and the power output shaft 2. For example, a first transmission tooth portion 35 is provided on the driving disc 3, and the first transmission tooth portion 35 is directly used to cooperate with the external power source for transmission. For details, see Fig.15 A second transmission tooth portion 71 is provided on the driven disk 7, and the second transmission tooth portion 71 is directly matched with the external motion load transmission, see Fig.12 .

[0103] The driving disk 3 and the driven disk 7 of this embodiment are both circular disks, and the relative joint surfaces of the two are both parallel plane structures. It can be imagined that the driving disk 3 and the driven disk 7 are not limited to circular disks, and disk structures such as square disks, semicircular disks or elliptical disks can also be used. The driving disk 3 and the driven disk 7 are adjacent to each other, thereby forming a transmission disk group. There are two transmission disk groups, which are respectively arranged adjacent to the third frame bar 163 and the fourth frame bar 164 of the support frame 16, and the two are arranged symmetrically. The driving disks 3 of the two transmission disk groups are connected to the same power input shaft 1, and the driven disks 7 of the two transmission disk groups are connected to the same power output shaft 2. Take one of the transmission disk groups for illustration, the driving disk 3 of the transmission disk group is parallel to the axis of the driven disk 7, that is, it matches the arrangement of the power input shaft 1 and the power output shaft 2. The above-mentioned "the axis of the driven disk is parallel to the axis of the driving disk" should be understood as the axis of the driven disk is not on the same straight line as the axis of the driving disk.

[0104] The driving disk 3 is provided with a plurality of mounting hole groups arranged in sequence along its radial direction, and each mounting hole group includes a plurality of mounting channels 30 arranged in sequence along the circumferential direction with the center of the driving disk 3 as the center of the circle, and each mounting channel 30 penetrates the driving disk 3 in a direction parallel to the axial direction of the driving disk 3. Each mounting channel 30 of the driving disk 3 is provided with a top tooth 6 that can reciprocate along the extension direction of the mounting channel 30. The top tooth 6 is in the shape of an elongated strip, and each top tooth 6 has a first end 61 and a second end 62 relative to each other in the length direction thereof, wherein the second end 62 of the top tooth 6 is adjacent to the driven disk 7, and the first end 61 is away from the driven disk 7. The top tooth 6 can reciprocate along the length direction of the mounting channel 30, and can also rotate around its own axis. The top tooth 6 can be provided with an oil hole 601 and an oil groove 602 for lubrication, such as Figure 1 As shown, an oil groove can be provided on the outer wall surface of the top tooth 6, and an oil hole can be provided inside the top tooth 6. Of course, the driving plate 3 and the driven plate 7 can also be provided with oil holes, oil grooves or weight-reducing hole grooves.

[0105] Corresponding to each mounting hole group on the driving disk 3, a plurality of engagement hole groups are sequentially arranged along the radial direction of the driven disk 7, and each engagement hole group includes a plurality of engagement recesses 70 sequentially arranged along the circumferential direction with the center of the driven disk 7 as the center. The number of the engagement hole groups on the driven disk 7 is consistent with the number of the mounting hole groups on the driving disk 3, and each engagement recess 70 on the driven disk 7 corresponds to each mounting channel 30 on the driving disk 3 in a direction parallel to the axis of the driving disk 3. Each engagement recess 70 on the driven disk 7 corresponds to the side facing the driving disk 3, and the second end 62 of the corresponding top tooth 6 can be inserted. Each top tooth 6 has a first state in which its second end 62 is inserted into the engagement recess 70 of the driven disk 7 and a second state in which its second end 62 is disengaged from the engagement recess 70 of the driven disk 7 as its position changes in the mounting channel 30.

[0106] See also Fig.11 The driven disk 7 is an integral part, and the above-mentioned engagement hole groups are formed on the side wall facing the driving disk 3. Of course, it is conceivable that the driven disk 7 can also be composed of a plurality of coaxially connected and sequentially sleeved gear rings 73, wherein each gear ring 73 has a corresponding set of engagement hole groups on the side wall facing the driving disk 3. The gear rings 73 sleeved together in the radial direction can be assembled by welding, keyway connection, riveting, etc., such as Figure 13a-13d, shows a structure of a driven disk 7 formed by combining the gear rings 73 by keyway connection, wherein the gear ring 73 located radially inside of the two adjacent gear rings 73 is recorded as an inner gear ring, and the gear ring 73 located radially outside is recorded as an outer gear ring. A first positioning convex key 732 is provided on one of the outer peripheral wall of the inner gear ring and the inner peripheral wall of the outer gear ring, and a first positioning groove 731 is correspondingly provided on the other, wherein two first springs 733 are provided in the first positioning groove 731, respectively corresponding to the left and right sides of the first positioning convex key 732, so that the corresponding gear disk has a certain floating space in the circumferential direction, so as to more smoothly receive the top teeth 6 on the driving disk 3. In a preferred embodiment, a plurality of first positioning convex keys 732 extending inwardly are arranged on the inner peripheral wall of the outer gear ring located radially outside, and a plurality of first positioning grooves 731 recessed inwardly are arranged on the outer peripheral wall of the inner gear ring located radially inside.

[0107] Elastic retaining rings or snap rings can be installed on the axial sides of the driving plate 3 and the driven plate 7, thereby setting the axial distance between the driving plate 3 and the driven plate 7 to limit the moving path range of the top gear 6.

[0108] Each mounting hole 30 of the driving disk 3 is also provided with an elastic member 4, which acts on the corresponding top teeth 6 and makes the top teeth 6 always have a tendency to move away from the driven disk 7, so that the second end 62 thereof is disengaged from the engagement notch 70 of the driven disk 7. In order to facilitate the installation of the elastic member 4, the top teeth 6 and other components, the driving disk 3 of this embodiment includes a disk body 31 and a cover body 32 correspondingly covering the driving disk 3 in the axial direction, and the disk body 31 and the cover body 32 can be connected by bolts 19. The disk body 31 is also provided with an annular groove 34 located at the periphery of the mounting hole 30 and connected with the mounting hole 30 at a position corresponding to each mounting hole 30. A limiting step 33 is formed at the position where the annular groove 34 is connected to the mounting hole 30 on the disk body 31, and a limiting convex portion 63 protruding outward along its radial direction is provided on the outer peripheral wall of the top teeth 6. The elastic member 4 is a spring, which is sleeved on a section of the main body of the top tooth 6 adjacent to the driven disk 7 with the limiting protrusion 63 as the boundary. One end of the spring abuts against the limiting protrusion 63, and the other end abuts against the limiting step 33. The above-mentioned annular groove 34 also provides a storage space for the spring. When the top tooth 6 is not squeezed by external force, the first end 61 of the top tooth 6 is always exposed under the elastic force of the spring, and the second end 62 is correspondingly hidden in the installation channel 30 (of course, the second end 62 can also be slightly exposed without interfering with the driven disk 7). When the top tooth 6 is pressed by external force (such as pressure applied by the operating block 80 of the operating assembly), the top tooth 6 will overcome the elastic force of the spring, and the second end 62 of the top tooth 6 will be inserted into the engagement recess 70 of the driven disk 7, thereby transmitting power between the driving disk 3 and the driven disk 7.

[0109] The disk body 31 and the cover body 32 of the driving disk 3 may be added with friction reducing components, such as spherical balls, cylindrical rollers, lubricating pads and other components to reduce friction.

[0110] There are two support rods 11 arranged side by side on the support frame 16. The operating assembly includes an operating block 80 and an operating rod 12. The operating block 80 is located on the side of the driving disk 3 away from the driven disk 7, and is slidably arranged on the two support rods 11, and can be moved roughly along the radial direction of the driving disk 3. The operating rod 12 is connected to the operating block 80, and is used to drive the operating block 80 to move along the support rod 11, wherein a guide hole 800 is opened on the first frame bar 161 of the support frame 16, and the operating rod 12 is passed through the guide hole 800 and extends outward to be connected to an external speed control mechanism. The external speed control mechanism can be a manual shift lever for manual shifting operation of a manual transmission motor vehicle, a shift actuator for an automatic transmission vehicle, or a "finger shift structure" for performing shifting operation of a bicycle.

[0111] The top teeth 6 in the mounting holes 30 of the driving disk 3 of this embodiment are independent of each other (that is, they are not connected by a connecting piece to form an integral part). Driven by the external speed control mechanism, the operating block 80 can be moved to a position corresponding to the mounting hole group located at different radial positions on the driving disk 3. After the operating rod 12 is moved to a position, as the driving disk 3 continues to rotate, the operating block 80 can sequentially act on the first end 61 of the top teeth 6 in each mounting hole 30 of the same mounting hole group, so that the second end 62 of each top tooth 6 is sequentially inserted into the corresponding engagement notch 70 of the driven disk 7 to drive the driven disk 7 to rotate.

[0112] In the present embodiment, at least the first end portion 61 of each top tooth 6 is constructed as an outwardly convex arc surface structure, such as a structure similar to a hemispherical surface. The portion of the operating block 80 used to abut against the first end portion 61 of the top tooth 6 can be correspondingly constructed as a curved surface structure suitable for generating sliding contact or rolling cooperation with the first end portion 61 of the top tooth 6 in the radial and circumferential directions of the drive disk 3, thereby avoiding the problem of jamming between the top tooth 6 and the operating block 80 during relative movement, thereby ensuring the flexibility of speed adjustment. Generally speaking, in some embodiments, the portion or component of the operating block 80 used to cooperate with the end portion of the top tooth 6 can directly adopt a freely rotatable universal ball or a top column structure with a hemispherical end or a spherical roller 82 structure. Specifically, as Figure 5As shown, the operation block 80 includes a first fixed seat 81 and a spherical roller 82 rotatably arranged on the first fixed seat 81 through a first pin shaft 83, and the extension direction of the first pin shaft 83 can be in the radial direction of the driving disk 3. When the driving disk 3 rotates, the spherical roller 82 can rotate accordingly and apply pressure to the first end 61 of the top tooth 6 in the corresponding mounting hole group. The operation block 80 adopts a rolling spherical roller 82, which has a smaller friction force and will not cause a large blockage problem to the rotation of the driving disk 3, thereby ensuring the flexibility and reliability of power transmission between the driving disk 3 and the driven disk 7 through the top tooth 6. In addition, since the outer contour wall surface of the spherical roller 82 is a curved surface structure, when the operation block 80 moves along the support rod 11 in the radial direction of the driving disk 3, the outer contour wall surface of the spherical roller 82 can slide in contact with the arc surface of the first end 61 of the top tooth 6, and the spherical roller 82 can smoothly move to different radial positions of the driving disk 3, and it is not easy to cause a stuck problem. The outer contour wall surface of the spherical roller 82 constitutes the curved surface structure of the operating block 80. The spherical roller 82 may also be provided with oil holes and oil grooves for lubrication.

[0113] like Fig. 9 and Fig.10 As shown, the second end 62 of each top tooth 6 of this embodiment is configured as a cone head structure or a ball head structure that can be matched with the engagement recess 70 on the driven plate 7 to transmit power in the circumferential direction. Fig. 9 The second end 62 of the top tooth 6 shown is a pyramid head structure. Fig.10 The second end 62 of the top tooth 6 shown is a conical head structure. More specifically, the overall shape of the top tooth 6 can be a semicircular body-polygonal body-cylinder-gear tooth head, a semicircular body-cylinder-conical head, a semicircular body-polygonal body-cylinder-conical head, a semicircular body-polygonal body-cylinder-semicircular body. Of course, it is conceivable that the top tooth 6 can also be selected as a sphere or other irregular shapes.

[0114] The first fixing seat 81 is provided with a first placement groove 810 with an opening on the side facing the driving disc 3. The spherical roller 82 is placed in the first placement groove 810, and part of the outer contour surface of the spherical roller 82 is exposed through the opening of the first placement groove 810. Since there are two groups of transmission disc groups composed of the driving disc 3 and the driven disc 7, and they are respectively arranged adjacent to the third frame bar 163 and the fourth frame bar 164 of the support frame 16, there are also two corresponding spherical rollers 82, wherein the operating component is located between the two transmission disc groups, and the two spherical rollers 82 are arranged on the same fixing seat. When the operating member moves, the two spherical rollers 82 act on the top teeth 6 of the two transmission disc groups respectively to realize the synchronous action of the two transmission disc groups, see Figure 5 .

[0115] The operation process of the continuously variable transmission device of this embodiment is as follows:

[0116] The power input shaft 1 is used to connect with an external power source. It passes through the support frame 16 and is connected to the middle of the driving disc 3 through a key, so as to input power to the driving disc 3 to make it rotate. The operating assembly is controlled by the operating rod 12 to make the operating block 80 relatively stationary or moving on the supporting rod 11. At the same time, the spherical roller 82 of the operating block 80 presses one or more top teeth 6 in the driving disc 3 to move along the mounting channel 30 inside the driving disc 3 and enter the engagement recess 70 of the driven disc 7, thereby driving the driven disc 7 to rotate. The top teeth 6 that are not pressed by the spherical roller 82 return to their original position and do not mesh with the driven disc 7 under the action of the spring sleeved on the outside. While the driven disc 7 is running, the power output shaft 2 is driven by the key to transmit kinetic energy outward. When the operating rod 12 controls the spherical roller 82 to move on the support rod 11, the spherical roller can continuously press one or more top teeth 6 in one or more groups of circles with the same diameter installed on the driving disc 3, so that the driving disc 3 and the top teeth 6 continuously mesh with the driven disc 7 in a simulated gear meshing manner. The spherical roller 82 is controlled by the operating rod 12, so that the spherical roller 82 presses the top teeth 6 to change the meshing radius of the driving disc 3 and the driven disc 7, thereby achieving the purpose of stepless speed regulation. When the spherical roller 82 no longer presses the top teeth 6, the driving disc 3 and the driven disc 7 are no longer driven by the meshing of the top teeth 6, and the neutral gear idling is achieved.

[0117] The continuously variable transmission device of this embodiment can make the top teeth 6 at different radial positions on the driving disk 3 cooperate with the corresponding engaging recesses 70 on the driven disk 7 by changing the position of the operating block 80, thereby changing the transmission radius of the driving disk 3 and the driven disk 7 to achieve continuously variable transmission. This continuously variable transmission device has a simple structure, a small size, and is easy to process, repair and maintain. The power transmission is direct and reliable, and it can withstand high torque and achieve continuously variable transmission. Unlike the steel belt / steel chain of the CVT transmission structure technology in the prior art that transmits power through friction and is prone to breakage and slipping during "violent driving", it can achieve multi-stage, continuously variable transmission while transmitting power through a rigid connection (simulating gear meshing, especially simulating spur gear tooth meshing), which can meet the needs of "intense driving". For example, when the accelerator is deeply stepped on and the torque suddenly increases, its power transmission can also maintain the same stability as gear meshing. On the other hand, this speed change device can achieve stepless speed change within a fairly wide range, so that there is no sense of frustration during driving, and it is easier to achieve the balance of gear ratio, speed ratio, performance, fuel consumption, and exhaust emissions in the transmission system, thereby improving the fuel economy of the whole vehicle. Compared with traditional manual transmission, automatic transmission, and CVT transmission, this stepless speed change mechanism combines the advantages of manual transmission gear meshing rigid connection and CVT transmission stepless speed change without frustration, and has lower processing and manufacturing costs, and can be better applied to the speed adjustment of motor vehicles. The above-mentioned speed change device is also applicable to bicycles, and flexible speed adjustment can be performed during riding and when stationary, without frustration and chain drop problems, meeting the user's needs for a comfortable riding experience. Of course, for other mechanical equipment that needs speed adjustment, this speed change device can provide an optional solution for special circumstances such as no power facilities or the inability to use multi-stage and stepless speed regulation of motors.

[0118] Example 2

[0119] See also Fig.18 The difference between this embodiment and the first embodiment is that only one transmission disc set consisting of the driving disc 3 and the driven disc 7 is provided, and the corresponding overall frame of the support frame 16 can be reduced to a size that matches one transmission disc set. Only one spherical roller of the operating block 80 can also be provided.

[0120] In addition, in order to prevent the driving disc 3 and the driven disc 7 from being deformed due to the radial force during long-term operation, a planar thrust bearing 165 is added to the side of the driven disc 7 away from the driving disc 3, that is, the driven disc 7 is supported on the support frame 16 through the planar thrust bearing.

[0121] Example 3

[0122] See also Fig.19The difference between this embodiment and the first embodiment is that only one transmission disc group consisting of the driving disc 3 and the driven disc 7 is provided, and the corresponding support frame 16 can be reduced to a size that matches one transmission disc group.

[0123] The operating components of this embodiment have two groups symmetrically arranged on the left and right sides, and the two groups of operating components are respectively located on both sides of the transmission disc group composed of the driving disc 3 and the driven disc 7, that is, one of them is opposite to the driving disc 3 and plays a role in applying pressure to the top teeth 6, and the other is opposite to the driven disc 7 and plays a role in providing support for the driven disc 7, thereby preventing the driving disc 3 and the driven disc 7 from being deformed due to the radial force during long-term operation.

[0124] Example 4

[0125] See also Fig. 20 The difference between this embodiment and embodiment 1 is that there are two transmission disc groups consisting of a driving disc 3 and a driven disc 7, and the two transmission disc groups are arranged closely. Specifically, the driven discs 7 of the two transmission disc groups are close to each other (there may be a slight gap or they may be directly close to each other), while the driving discs 3 are far away from each other.

[0126] The operating components of this embodiment have two groups that are symmetrically arranged on the left and right. The two groups of operating components are respectively on the outside of the two transmission disk groups, that is, the operating block 80 of one operating component is opposite to one of the drive disks 3, and the operating block 80 of the other operating component is opposite to the other drive disk 3.

[0127] In addition, the operation block 80 of this embodiment is also different from that of the first embodiment. Specifically, the operation block 80 of this embodiment includes a third fixed seat 86 and a top block 87 disposed on the third fixed seat 86. The portion of the top block 87 used to abut against the top tooth 6 is correspondingly constructed as a curved surface structure suitable for generating sliding contact or rolling cooperation with the top tooth 6 in the radial direction and circumferential direction of the driving disk 3. Specifically, the top block 87 can adopt a top rod structure, and the two ends of the top rod (i.e., the positions corresponding to the abutment with the first end 61 of the top tooth 6) are correspondingly designed as convex arc surface structures. The specific structure of the top block 87 can be seen in Fig.32 .

[0128] Example 5

[0129] See also Fig. 22 and Fig.23 The difference between this embodiment and the first embodiment is that the driving disk 3 and the driven disk 7 of this embodiment are both conical structures, and the opposing joint surfaces of the driving disk 3 and the driven disk 7 (i.e., the sides of the two cones) are both conical surfaces, and the slopes of the conical surfaces of the two are basically the same. Correspondingly, each mounting channel 30 on the driving disk 3 axially penetrates from the bottom surface of the driving disk 3 to its side surface (conical surface), and the first end portions 61 of each top tooth 6 are connected together by a connecting ring 64 to form a top tooth 6 group, see Fig.29 and Fig.30 .in, Fig.29 The top teeth 6 in the embodiment are fixedly connected to the connecting ring 64, and Fig.30 The top teeth 6 in the top teeth 6 group are movably connected to the connecting ring 64. Specifically, a movable groove is provided on the side wall of the connecting ring 64. The first end 61 of the top teeth 6 is provided with a limit stop edge that can be inserted into the movable groove. After the limit stop edge of the first end 61 of the top teeth 6 is inserted into place, it can rotate around its own axis relative to the connecting ring 64. After each top tooth 6 of the top teeth 6 group is inserted into each mounting channel 30 of the driving disk 3, a spring sleeved on the outside of the top teeth 6 can be provided as in the first embodiment to achieve the purpose of resetting the top teeth 6. Among them, the spring can be sleeved on each top tooth 6 of the top teeth 6 group, or on several of the top teeth 6, as long as they are evenly arranged in the circumferential direction to ensure that the top teeth 6 group is evenly stressed.

[0130] The outer peripheral wall (of the largest radius) of the driving disk 3 of this embodiment may also be provided with a first transmission tooth portion 35, which is directly coupled with the external power source through the first transmission tooth portion 35. Fig.26 .

[0131] The engagement hole groups on the driven disk 7 are also distributed in a stepped manner. Different from the cylindrical channels on the driven disk 7 in the first embodiment, the engagement recesses 70 on the driven disk 7 of the present embodiment are grooves, pits, etc. that can receive the second end 62 of the top teeth 6 to transmit power in the circumferential direction. Fig. 27 The conical driven plate 7 can be an integral piece, and the side wall thereof is processed to form the above-mentioned engagement hole groups. Of course, it is conceivable that the driven plate 7 can also be composed of a plurality of coaxially connected gears with different radial dimensions arranged in a stepped manner, and each tooth groove (the gap between two adjacent teeth) on the outer peripheral wall of each gear is the engagement notch 70, and together constitutes a group of engagement hole groups. The gears that are sequentially sleeved together in the radial direction can be assembled by welding, keyway connection, riveting, etc., such as Figure 28a-28d, shows a structure of a driven plate 7 formed by combining gears through keyway connection, wherein the gear located radially inward of two adjacent gears is recorded as an inner gear, and the gear located radially outward is recorded as an outer gear. A second positioning convex key 742 is provided on one of the outer circumferential wall of the gear shaft of the inner gear and the inner circumferential wall of the gear shaft of the outer gear, and a second positioning groove 741 is correspondingly provided on the other, wherein two second springs 743 corresponding to the left and right sides of the second positioning convex key 742 are also provided in the second positioning groove 741, so that the corresponding gear has a certain floating space in the circumferential direction, so as to more smoothly receive the top teeth 6 on the driving plate 3. In a preferred embodiment, two or more second positioning convex keys 742 extending inwardly are arranged along the circumferential direction on the inner circumferential wall of the gear shaft of the outer gear, and two or more second positioning grooves 741 recessed inwardly are arranged along the circumferential direction on the outer circumferential wall of the gear shaft of the inner gear.

[0132] The operating block 80 of the operating assembly of this embodiment can be directly slidably arranged on the support frame 16. Specifically, a strip-shaped slide groove 160 is provided on a frame plate on the support frame 16 opposite to the bottom surface of the driving disk 3 along its length direction, and one end of the operating block 80 is slidably constrained in the strip-shaped slide groove 160. The structure of the operating block 80 in the embodiment 1 is basically the same, and the operating block 80 includes a first fixed seat 81 and a spherical roller 82 rotatably arranged in a first placement groove 810 of the first fixed seat 81 through a first pin shaft 83. In order to ensure that the top gear 6 groups are evenly stressed, the operating block 80 has two symmetrically arranged about the power input shaft 1. Correspondingly, two strip-shaped slide grooves 160 are also provided on the support frame 16. More specifically, a support sleeve 121 is provided on the power input shaft 1 to enable its axial sliding, and an operating rod 12 is connected to the support sleeve 121. The left and right sides of the support sleeve 121 are respectively hinged to the first fixed seat 81 of the operating block 80 through two connecting rods 120. When the support sleeve 121 is driven by the operating rod 12 to move axially along the power input shaft 1, the two operating blocks 80 can also be driven by the connecting rod 120 to approach or move away, thereby moving to different radial positions of the drive disk 3 and applying pressure to the top tooth 6 group at the corresponding position.

[0133] Example 6

[0134] See also Fig.24 The difference between this embodiment and the embodiment 5 is that: there are two driven disks 7 arranged at intervals, and there is one driving disk 3, which is located between the two driven disks 7, wherein the driving disk 3 is in transmission cooperation with the two driven disks 7 located on both sides, that is, the two driven disks 7 are driven to rotate simultaneously by one driving disk 3. The axes of the two driven disks 7 are parallel to each other and are respectively connected to the two power output shafts 2, and the two power output shafts 2 are also connected to the power output gears 55. The power input shaft 1 connected to the driving disk 3 is connected to the power input gear 54.

[0135] Example 7

[0136] See also Fig.25 The difference between this embodiment and the fifth embodiment is that the operating components are different. The operating components of this embodiment include a plurality of driving rods 88 and a driving mechanism 89 for driving the driving rods 88 to telescopically move. The plurality of driving rods 88 correspond to different mounting holes 30 on the driving disk 3, respectively. The driving mechanism 89 is an electric driving mechanism 89 or a hydraulic driving mechanism 89. The driving mechanism 89 can selectively drive one of the driving rods 88 to act on the top teeth 6 group in the corresponding mounting hole group on the driving disk 3 to move along the mounting hole 30. More specifically, in order to ensure the stability of the movement of the top teeth 6 group, two groups of driving rods 88 can be arranged correspondingly relative to the axis of the driving disk 3, that is, there are two symmetrically arranged driving rods 88 corresponding to the connecting ring 64 of each top teeth 6 group.

[0137] The present invention also relates to a vehicle, which can adopt the continuously variable transmission device in the above embodiments, and the vehicle can be a motor vehicle or a bicycle. Fig.21 The corresponding matching structure of a motor vehicle using the continuously variable transmission device in Example 4 is shown, wherein only the torque converter 51 and the reverse gear mechanism 52 (such as the existing CVT reverse gear mechanism 52) connected to the continuously variable transmission mechanism are shown. The torque converter 51 and the reverse gear mechanism 52 are connected to the power input shaft 1 of the continuously variable transmission device. The transmission matching structure of the above-mentioned components is basically the same as the transmission matching structure of the conventional continuously variable transmission device in the prior art, and will not be repeated here. Fig.35 and Fig.36 Two bicycle structures using the continuously variable transmission device of the present invention are shown respectively. Fig.35The support frame 16 of the continuously variable transmission device is provided with a first gear 93 connected to the power output shaft 2 and a second gear 94 meshing with the first gear 93. The second gear 94 and the first ratchet 91 are arranged on the same welding shaft, and the first ratchet 91 can be connected to the bicycle chain 53. The power output shaft 2 is connected to the wheel shaft of the bicycle. In actual operation, the chain 53 inputs power to the first ratchet 91, the first ratchet 91 and the second gear 94 are fixed together by spline connection and sleeved on the welding shaft of the support frame 16, the first ratchet 91 inputs power to the second gear 94, the second gear 94 drives the first gear 93 to rotate by gear meshing, the first gear 93 transmits power to the power input shaft 1 by key connection, and drives the driving disk 3 to rotate by key connection after the power input; the operating block 80 is controlled by the operating rod 12 to be relatively still or move on the support rod 11, and at the same time, the spherical roller 82 on the sliding block presses one or more top teeth 66 in the mounting hole 30 of the driving disk 3 to move along the mounting hole 30 and enter the engaging notch 70 of the driven disk 7, thereby driving the driven disk 7 to rotate. Because the driven disk 7 is directly and rigidly connected to the wheel shaft, it drives it to rotate. When the operating rod 12 controls the operating block 80 to move on the support rod 11, the operating block 80 continuously presses one or more top teeth 6 in one or more groups of circles with the same diameter installed on the driving disc 3, so that the top teeth 6 in the driving disc 3 continuously mesh with the driven disc 7 in a simulated gear meshing manner. By controlling the position of the operating block 80 through the operating rod 12, the operating block 80 presses the top teeth 6 to change the meshing radius of the driving disc 3 and the driven disc 7, thereby achieving the purpose of stepless speed regulation. Fig.36 The power output shaft 2 of the continuously variable transmission device is sleeved with a second ratchet 92 and a third gear 95, and the second ratchet 92 and the third gear 95 are fixed together by a spline connection and can rotate freely relative to the power output shaft 2. The second ratchet 92 and the third gear 95 are located in the support frame 16. The outer peripheral wall of the driving disk 3 is arranged with a first transmission tooth portion 35, wherein the third gear 95 meshes with the first transmission tooth portion 35. In actual operation, the chain 53 inputs power to the second ratchet 92, and the second ratchet 92 inputs power to the third gear 95, and the third gear 95 drives the driving disk 3 to rotate through gear meshing.

[0138] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. Figure 31a-Figure 31d As shown, the two spherical rollers 82 in the first embodiment can be replaced by two freely rotatable balls 85. Specifically, the second fixed seat 84 includes a first clamping block 841 and a second clamping block 842 connected together by bolts 19. The two clamping blocks have arc-shaped recesses on their opposite side walls that match the balls 85. After the two balls 85 are placed in the second fixed seat 84, the sides that are far from each other can be exposed from the two sides of the second fixed seat 84. Fig.32 As shown, the operating block 80 may also adopt the following structure: the operating block 80 includes a third fixed seat 86 and a top block 87 fixed on the third fixed seat 86, and the portion of the top block 87 used to abut against the top tooth 6 is correspondingly constructed as a curved surface structure suitable for generating sliding contact or rolling cooperation with the top tooth 6 in the radial and circumferential directions of the driving disk 3. For example, the top block 87 may adopt a top rod structure, and the two ends of the top rod (i.e., the positions corresponding to the abutment with the first end 61 of the top tooth 6) are correspondingly designed as convex arc structures. As shown in FIG. 33 again, the two spherical rollers 82 in Example 1 can be replaced by a single spherical roller 82, wherein the left and right dimensions of the first fixed seat 81 are made small so that the outer peripheral wall of the roller is exposed at the left and right openings of the first fixed seat 81. Figure 34a-Figure 34c As shown. For another example, the disk body 31 of the drive disk 3 and the cover body 32 can be fixed by riveting, clamping or welding in addition to being fixed by bolts 19. For another example, the support rod 11 used to provide sliding guide support for the operating block 80 is also limited to being set on the support frame 16. The support rod 11 can be connected between the power output shaft 2 and the power input shaft 1 through the corresponding support block sleeve. Of course, the support rod 11 can also be omitted, such as Fig. 22 As shown, the operating block 80 is directly slidably disposed in the strip slide groove 160 of the support frame 16, and the movement of the operating block 80 can be controlled by a linkage mechanism, gears, forks, wire ropes, screws, motors, hydraulics, etc., to apply pressure to the top teeth 6 so that the top teeth 6 engage with the driven disk 7. For another example, the reset member is not limited to the elastic member 4 disposed on the driving disk 3, and can be replaced by a magnetic member disposed on the driving disk 3, and the magnetic member can be a permanent magnet or an electromagnet disposed on the driving disk 3. The top teeth 6 are correspondingly made of a magnetic conductive material that can be attracted by the magnetic member. When the top teeth 6 are not pressed by the operating block 80, they can be pulled out of the engagement recess 70 of the driven disk 7 under the attraction of the magnetic member and reset to the initial position.

Claims

1. A continuously variable transmission device, Features include: A driving disk, the driving disk can rotate around its own axis under the drive of an external power source, and the driving disk is provided with a plurality of mounting hole groups arranged in sequence along its radial direction, each mounting hole group includes a plurality of mounting channels arranged in sequence along a circumferential direction with the center of the driving disk as the center of the circle, and each mounting channel penetrates the driving disk in a direction parallel to the axial direction of the driving disk; A driven disc is arranged adjacent to the driving disc, and a plurality of engagement hole groups are arranged in sequence along the radial direction of the driven disc on one side of the driven disc facing the driving disc, and each engagement hole group includes a plurality of engagement notches arranged in sequence along the circumferential direction with the center of the driven disc as the center of the circle; A plurality of top teeth are provided in the mounting holes, and can reciprocate along the extending direction of the mounting holes. Each top tooth has a first state of being inserted into the engaging recess of the driven disk and a second state of being disengaged from the engaging recess of the driven disk as its position in the mounting holes changes. The operating assembly can selectively act on one or two or more top teeth of the mounting hole groups located at different radial positions on the driving disc, so that the corresponding top teeth are inserted into the engaging recesses of the driven disc to drive the driven disc to rotate.

2. The continuously variable transmission according to claim 1, characterized in that: Also included is a reset member, which can act on the top tooth and make the top tooth always have a tendency to move away from the driven disk and escape from the engagement notch of the driven disk; The reset member is a magnetic member arranged on the driving disk, and the top teeth are magnetic conductive members that can be attracted by the magnetic member; or the reset member is an elastic member arranged in each mounting hole of the driving disk.

3. The continuously variable transmission according to claim 2, characterized in that: The driving disk comprises a disk body and a cover body correspondingly covering the driving disk in the axial direction, the disk body is further provided with an annular groove located at the periphery of the mounting hole and connected with the mounting hole at a position corresponding to each mounting hole, a limiting step is formed at a position where the annular groove and the mounting hole on the disk body are connected, the outer peripheral wall of the top tooth is provided with a limiting convex portion protruding outward in the radial direction thereof, the elastic member is a spring, the spring is sleeved on the top tooth, one end of the spring is against the limiting convex portion, and the other end is against the limiting step; or A groove is provided on the inner wall of the mounting hole of the driving disk, and an elastic retaining ring or a snap ring is installed in the groove to cooperate with the driving disk to limit the moving path range of the top gear.

4. The continuously variable transmission according to claim 1, characterized in that: The top teeth are spherical or quasi-spherical in structure as a whole; or The top teeth are rod-shaped as a whole, and have a first end and a second end relative to each other in the length direction, wherein the second end is adjacent to the driven disk, and the first end is away from the driven disk, and the first end of each top tooth is configured as an outwardly convex arc surface structure, and the second end of each top tooth is configured as a cone head structure or a ball head structure that can adapt to the engagement recess on the driven disk to transmit power in the circumferential direction.

5. The continuously variable transmission according to claim 1, characterized in that: Each top tooth located in the same mounting hole group has at least two top teeth connected together, thereby forming a top tooth group that can move synchronously along the mounting hole channel.

6. The continuously variable transmission according to claim 1, characterized in that: The operating assembly includes an operating block, which is located on a side of the driving disk away from the driven disk and can be moved to a position corresponding to a mounting hole group located at different radial positions on the driving disk, and acts on one or two or more top teeth in each mounting hole channel of the same mounting hole group, so that the corresponding part of each top tooth is sequentially inserted into the corresponding engagement notch of the driven disk to drive the driven disk to rotate; The operating block includes a first fixed seat and a spherical roller rotatably arranged on the first fixed seat through a first pin shaft; or, the operating block includes a second fixed seat and a rolling ball limited by rolling on the second fixed seat; or, the operating block includes a third fixed seat and a top block arranged on the third fixed seat, and the portion of the top block used to abut against the top tooth is correspondingly constructed as a curved surface structure suitable for generating sliding contact or rolling cooperation with the top tooth in the radial direction and circumferential direction of the driving disk.

7. The continuously variable transmission according to any one of claims 1 to 6, characterized in that: The driving disk and the driven disk are each one of a circular disk, a square disk, a semicircular disk, and an elliptical disk, and the opposing joint surfaces of the driving disk and the driven disk are both parallel plane structures; or, the driving disk and the driven disk are both conical structures, and the opposing joint surfaces of the driving disk and the driven disk are both conical surfaces; or, the driving disk and the driven disk are both conical structures, and the opposing joint surfaces of the driving disk and the driven disk are both conical surfaces, and the driven disk has at least two spaced apart surfaces, and the driving disk is located between the driven disks and can form a transmission fit with each driven disk; The driving disc and the driven disc that cooperate with each other constitute a transmission disc group, and the transmission disc group has two symmetrically arranged ones, the driving discs of the two transmission disc groups are driven by the same driving source, and the driven discs of the two transmission disc groups are connected to the same motion load; The operating assembly is located between the two transmission disc groups and acts on the top teeth of the two transmission disc groups synchronously; or there are two groups of operating assemblies, which are respectively arranged on two sides of the two transmission disc groups that are far away from each other.

8. The continuously variable transmission according to any one of claims 1 to 6, characterized in that: The outer peripheral wall of the driving disc is also provided with a circle of first transmission teeth for transmission cooperation with an external driving source, and the outer peripheral wall of the driven disc is also provided with a circle of second transmission teeth for transmission connection with an external motion load; The driven plate includes a plurality of coaxially connected gear rings which are sequentially sleeved together, and a group of engaging holes is correspondingly opened on the side wall of each gear ring facing the driving plate; or, the driven plate includes a plurality of coaxially connected gears which are arranged in a step manner with different radial sizes, and the tooth grooves on the outer peripheral wall of each gear constitute a group of engaging holes.

9. The continuously variable transmission according to any one of claims 1 to 6, characterized in that: The driving plate, the driven plate and the top teeth are provided with lubricating oil holes or lubricating oil grooves or weight-reducing hole grooves.

10. A vehicle, comprising a transmission, characterized in that: The transmission device adopts the continuously variable transmission device according to any one of claims 1 to 9.

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