Continuously variable transmission and bicycle

Abstract

The utility model provides a continuously variable transmission and a bicycle. The continuously variable transmission comprises a base, a first power wheel, a variable speed generation wheel, an adjusting assembly and a first locking piece. The adjusting assembly comprises a driving source and a speed adjusting wheel, the driving source is arranged on the base, the speed adjusting wheel is rotationally arranged on the base and connected to the driving source and the speed changing generation wheel, the driving source is used for driving the speed adjusting wheel to rotate relative to the base, and the speed adjusting wheel is arranged on the base. The speed regulation wheel is used for driving the speed change generation wheel to slide, so that the speed change generation wheel is eccentrically arranged relative to the first power wheel; under the condition that the speed of the first power wheel is constant, the driving source is controlled to change the eccentric distance of the speed change generation wheel relative to the first power wheel, so that the rotating speed of the speed change generation wheel is changed, automatic adjustment of stepless speed change is achieved, the adjustment mode of stepless speed change can be simplified, and the personalized adjustment requirement for treading force during riding is met.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a continuously variable transmission and a bicycle. Background Art

[0002] In the related art, a stepped transmission is adopted on a bicycle or a power-assisted bicycle, which is divided into two types: internal transmission and external transmission. Both of these two transmissions have only a limited number of fixed gears, and there are often situations where the pedaling force is too large when shifting up one gear and too small when shifting down one gear, which cannot meet the personalized adjustment requirements of people for the pedaling force during riding; moreover, the speed adjustment of the transmission is usually manually adjusted by toggling, and the adjustment method is relatively inconvenient, resulting in defects in the continuously variable transmission. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a continuously variable transmission and a bicycle, aiming to solve the problem that the continuously variable transmission adopted by the bicycle in the related art still has defects.

[0004] To solve the above technical problem, the first aspect of the utility model provides a continuously variable transmission, including:

[0005] A base;

[0006] A first driving wheel, rotatably arranged on the outside of the base, and the first driving wheel is coaxially arranged with the base;

[0007] A variable speed generating wheel, rotatably arranged on the outside of the base and located on one side of the first driving wheel, the variable speed generating wheel is slidably assembled on the base along the radial direction of the base, and the rotating shaft between the variable speed generating wheel and the base is parallel or coaxial with the central axis of the base;

[0008] An adjusting assembly, including a driving source and a speed regulating wheel, the driving source is arranged on the base, the speed regulating wheel is rotatably arranged on the base, the speed regulating wheel is respectively connected to the driving source and the variable speed generating wheel, the driving source is used to drive the speed regulating wheel to rotate relative to the base, and the speed regulating wheel is used to drive the variable speed generating wheel to slide, so that the variable speed generating wheel is eccentrically arranged relative to the first driving wheel; and,

[0009] A first locking member, slidably assembled on the variable speed generating wheel along the circumferential direction of the base and slidably connected to the first driving wheel along the radial direction of the base, the first locking member is fixed to the variable speed generating wheel in the radial direction of the base and fixed to the first driving wheel in the circumferential direction of the base, there are a plurality of the first locking members, and the plurality of first locking members are distributed in the circumferential direction of the variable speed generating wheel and enclose a concentric circle coaxially arranged with the variable speed generating wheel;

[0010] Wherein, the first locking member has a locking state in which it can be fixed to the speed change generating wheel along a first direction, and an unlocking state in which it can slide relative to the speed change generating wheel along a second direction. The first direction is opposite to the second direction. When the speed change generating wheel is eccentric to the first power wheel and each of the first locking members slides along the first direction, only the first locking member with the maximum linear velocity is fixed to the speed change generating wheel.

[0011] Optionally, the adjusting assembly further includes a transmission mechanism. The transmission mechanism includes a first transmission member and a second transmission member. The first transmission member is arranged on the drive source, and the second transmission member is arranged on the speed regulating wheel. The first transmission member and the second transmission member are engaged and matched to enable the drive source to drive the speed regulating wheel to rotate.

[0012] Optionally, the transmission mechanism further includes a third transmission member. The third transmission member is rotatably arranged on the base. The rotating shaft between the third transmission member and the base and the rotating shaft between the speed regulating wheel and the base are parallel to each other. The third transmission member is engaged and matched with the first transmission member and the second transmission member respectively.

[0013] Optionally, the transmission mechanism further includes:

[0014] A rotating shaft, rotatably arranged on the base. The rotating shaft is parallel to the central axis of the base. The third transmission member is fixed to the end of the rotating shaft away from the base; and,

[0015] A fourth transmission member, fixed to the end of the rotating shaft close to the base. The fourth transmission member is engaged and matched with the second transmission member.

[0016] Optionally, the adjusting assembly further includes a mounting seat. The mounting seat is fixed to the base and is provided with a receiving cavity. The rotating shaft, the first transmission member, the second transmission member, the third transmission member and the fourth transmission member are all received in the receiving cavity;

[0017] The transmission mechanism further includes a first bearing and a second bearing. The first bearing is respectively connected to the mounting seat and the end of the rotating shaft away from the base, and the second bearing is respectively connected to the mounting seat and the end of the rotating shaft close to the base.

[0018] Optionally, the drive source includes a driving part and an output shaft. The driving part is fixed to the base and is arranged outside the mounting seat. One end of the output shaft is connected to the driving part and the other end penetrates through the mounting seat. The first transmission member is sleeved outside the output shaft;

[0019] The adjusting assembly further includes a first limiting ring and a second limiting ring. The first limiting ring and the second limiting ring are respectively sleeved at two ends of the output shaft and received in the receiving cavity. The first transmission member is disposed between the first limiting ring and the second limiting ring. One ends of the first limiting ring and the second limiting ring away from the first transmission member respectively abut against opposite side walls of the receiving cavity.

[0020] Optionally, the continuously variable transmission further includes an eccentric seat. The eccentric seat is sleeved outside the base and is slidably assembled with the base along the radial direction of the base. The variable speed generating wheel is rotatably disposed outside the eccentric seat, and the variable speed generating wheel is fixed to the eccentric seat in the radial direction of the base.

[0021] Wherein, a fifth transmission member is provided on the eccentric seat, and a sixth transmission member is provided on the speed regulating wheel. The fifth transmission member is engaged with the sixth transmission member to enable the speed regulating wheel to drive the eccentric seat to slide relative to the base.

[0022] Optionally, a relief through hole is provided on the eccentric seat, and the length of the relief through hole extends along the radial direction of the base.

[0023] A notch is provided on the circumferential surface of the base. The base is slidably assembled in the relief through hole, and at least part of the notch is located in the relief through hole.

[0024] Optionally, the continuously variable transmission further includes:

[0025] A second power wheel, which is rotatably disposed outside the base and on a side of the variable speed generating wheel away from the first power wheel. The second power wheel is coaxially disposed with the base; and,

[0026] A second locking member, which is slidably assembled with the variable speed generating wheel along the circumferential direction of the base and slidably connected to the second power wheel along the radial direction of the base. The second locking member is fixed to the variable speed generating wheel in the radial direction of the base and fixed to the second power wheel in the circumferential direction of the base. A plurality of the second locking members are provided, and the plurality of second locking members are distributed in the circumferential direction of the variable speed generating wheel and enclose a concentric circle coaxially disposed with the variable speed generating wheel.

[0027] Wherein, the second locking member has a locking state in which it can be fixed to the variable speed generating wheel along the first direction and an unlocking state in which it can slide relative to the variable speed generating wheel along the second direction. When the variable speed generating wheel is eccentric relative to the second power wheel and each of the second locking members slides along the first direction, only one of the second locking members with the maximum linear velocity is fixed to the variable speed generating wheel.

[0028] In a second aspect of the present utility model, a bicycle is provided, which includes the continuously variable transmission as described in any one of the above.

[0029] Compared with the related art, a continuously variable transmission and a bicycle in the present utility model have the beneficial effects that: when the speed of the first driving wheel is constant, the driving source can be controlled to change the eccentric distance between the variable-speed generating wheel and the first driving wheel, so as to change the rotation speed of the variable-speed generating wheel, realize the automatic adjustment of stepless speed change, thereby simplifying the adjustment method of stepless speed change and meeting the personalized adjustment requirements of the pedaling force during riding. In addition, the continuously variable transmission can achieve non-frictional continuous stepless speed change, with large transmitted torque and high transmission efficiency; it can be shifted in a stationary state, a rotating state, and a riding state, is convenient for speed regulation, and is light in weight and small in size. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 is a schematic structural diagram of the continuously variable transmission provided by the embodiment of the present utility model;

[0032] Figure 2 is a schematic assembly relationship diagram among the driving source, the speed regulating wheel, and the transmission mechanism provided by the embodiment of the present utility model;

[0033] Figure 3 is an exploded view of the adjusting assembly provided by the embodiment of the present utility model;

[0034] Figure 4 is an exploded view of a partial structure of the continuously variable transmission provided by the embodiment of the present utility model;

[0035] Figure 5 is Figure 4 an exploded view of detail A in

[0036] Figure 6 is a schematic distribution diagram of each first locking member when the variable-speed generating wheel is offset provided by the embodiment of the present utility model;

[0037] Figure 7 is a schematic distribution diagram of each first locking member when the variable-speed generating wheel is not offset provided by the embodiment of the present utility model;

[0038] Figure 8 is a schematic structural diagram of the first locking member provided by the embodiment of the present utility model;

[0039] Figure 9 It is a cross-sectional view of the first locking member provided by an embodiment of the present utility model;

[0040] Figure 10 It is a schematic structural diagram of the second locking member provided by an embodiment of the present utility model;

[0041] Figure 11 It is a cross-sectional view of the second locking member provided by an embodiment of the present utility model.

[0042] In the drawings, each reference numeral represents: 1, base; 11, notch; 12, support plate; 2, first driving wheel; 21, first connecting groove; 3, speed change generating wheel; 31, first mounting groove; 311, first inner side wall; 312, first outer side wall; 32, second mounting groove; 321, second inner side wall; 322, second outer side wall; 4, adjusting assembly; 41, driving source; 411, driving part; 412, output shaft; 413, protective sleeve; 42, speed regulating wheel; 421, sixth transmission member; 43, transmission mechanism; 431, first transmission member; 432, second transmission member; 433, third transmission member; 434, fourth transmission member; 435, rotating shaft; 436, first bearing; 437, second bearing; 438, third bearing; 439, fourth bearing; 44, mounting seat; 441, housing; 4411, receiving cavity; 4412, locking hole; 4413, first mounting hole; 4414, second mounting hole; 442, upper cover plate; 443, lower cover plate; 45, first limiting ring; 46, second limiting ring; 5, first locking member; 51, first sliding seat; 511, first accommodating groove; 52, first guiding part; 521, first guiding inclined surface; 53, first locking part; 54, first elastic member; 55, first connecting part; 56, first protective sleeve; 57, first friction block; 6, eccentric seat; 61, fifth transmission member; 62, relief through hole; 7, second driving wheel; 71, second connecting groove; 8, second locking member; 81, second sliding seat; 811, second accommodating groove; 82, second guiding part; 821, second guiding inclined surface; 83, second locking part; 84, second elastic member; 85, second connecting part; 86, second protective sleeve; 87, second friction block; 9, first inner friction ring; 10, first outer friction ring; 20, third limiting ring; 30, second inner friction ring; 40, second outer friction ring; 50, fourth limiting ring; 60, fifth bearing; 70, sixth bearing; 80, seventh bearing; 90, eighth bearing. Detailed implementation manners

[0043] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0046] Embodiment:

[0047] An embodiment of the present utility model provides a bicycle, which includes a vehicle body and a continuously variable transmission. The continuously variable transmission is disposed on the vehicle body. By adjusting the continuously variable transmission, the speed ratio required within the variable speed range can be quickly adjusted when the bicycle is in a stopped state, a riding state, and a coasting state. Among them, the continuously variable transmission is fixed to the vehicle body by a barrel shaft, and the bicycle is further provided with connecting plates respectively fixed to the vehicle body and the continuously variable transmission, and the connecting plates can assist in fixing and prevent the continuously variable transmission from rotating relative to the vehicle body.

[0048] Please refer to Figures 1 to 11, the continuously variable transmission includes a base 1, a first driving wheel 2, a speed-changing generating wheel 3, an adjusting assembly 4, and a first locking member 5. The first driving wheel 2 is rotatably arranged on the outside of the base 1, and the first driving wheel 2 is coaxially arranged with the base 1, that is, the first driving wheel 2 is sleeved on the outside of the base 1 and can rotate around the central axis of the base 1. The speed-changing generating wheel 3 is rotatably arranged on the outside of the base 1 and is located on one side of the first driving wheel 2. The speed-changing generating wheel 3 is slidably assembled on the base 1 in the radial direction of the base 1. The rotating shaft between the speed-changing generating wheel 3 and the base 1 is parallel or coaxial with the central axis of the base 1, that is, the speed-changing generating wheel 3 is sleeved on the outside of the base 1, and the speed-changing generating wheel 3 can not only rotate around the central axis of the base 1, but also slide relative to the base 1 in the radial direction of the base 1. The adjusting assembly 4 includes a driving source 41 and a speed-regulating wheel 42. The driving source 41 is arranged on the base 1, the speed-regulating wheel 42 is rotatably arranged on the base 1, the speed-regulating wheel 42 is respectively connected to the driving source 41 and the speed-changing generating wheel 3. The driving source 41 is used to drive the speed-regulating wheel 42 to rotate relative to the base 1, and the speed-regulating wheel 42 is used to drive the speed-changing generating wheel 3 to slide, so that the speed-changing generating wheel 3 is eccentrically arranged relative to the first driving wheel 2. The first locking member 5 is slidably assembled on the speed-changing generating wheel 3 in the circumferential direction of the base 1 and is slidably connected to the first driving wheel 2 in the radial direction of the base 1. The first locking member 5 is fixed to the speed-changing generating wheel 3 in the radial direction of the base 1 and is fixed to the first driving wheel 2 in the circumferential direction of the base 1. There are a plurality of first locking members 5, and the plurality of first locking members 5 are distributed in the circumferential direction of the speed-changing generating wheel 3 and enclose a concentric circle coaxially arranged with the speed-changing generating wheel 3; wherein, the first locking member 5 has a locking state in which it can be fixed to the speed-changing generating wheel 3 along a first direction, and an unlocking state in which it can slide relative to the speed-changing generating wheel 3 along a second direction. The first direction and the second direction are opposite. When the speed-changing generating wheel 3 is eccentric relative to the first driving wheel 2 and each first locking member 5 slides along the first direction, only the first locking member 5 with the maximum linear velocity is fixed to the speed-changing generating wheel 3.

[0049] The driving source 41 drives the speed regulating wheel 42 to rotate. When the variable speed generating wheel 3 moves a certain distance in the radial direction of the base 1 under the drive of the speed regulating wheel 42, the variable speed generating wheel 3 is eccentrically arranged relative to the first driving wheel 2, and the concentric circle formed by enclosing each first locking member 5 and coaxially arranged with the variable speed generating wheel 3 is eccentrically arranged relative to the first driving wheel 2. At this time, the first driving wheel 2 is driven to rotate in the first direction. The first locking member 5 rotates in the first direction following the first driving wheel 2 and drives the variable speed generating wheel 3 to rotate in the first direction. Moreover, the first locking member 5 can have continuous changes in linear velocity and angular velocity on the variable speed generating wheel 3. Only the first locking member 5 with the maximum linear velocity is fixed to the variable speed generating wheel 3, and the remaining first locking members 5 follow on the variable speed generating wheel 3. The variable speed generating wheel 3 rotates synchronously with the first locking member 5 with the maximum linear velocity. Thus, the speed regulating wheel 42 can be adjusted by controlling the driving source 41. By adjusting the speed regulating wheel 42, the eccentric distance of the variable speed generating wheel 3 relative to the first driving wheel 2 is changed, and the maximum linear velocity of the first locking member 5 is changed, so that the rotation speed of the variable speed generating wheel 3 is changed, completing the adjustment of the rotation speed of the variable speed generating wheel 3. Therefore, when the speed of the first driving wheel 2 is constant, the driving source 41 can be controlled to change the eccentric distance of the variable speed generating wheel 3 relative to the first driving wheel 2 to change the rotation speed of the variable speed generating wheel 3, realizing the automatic adjustment of stepless speed change. Thereby, the adjustment method of stepless speed change can be simplified to meet the personalized adjustment requirements for the pedaling force during riding. In addition, this stepless speed changer can achieve non-frictional continuous stepless speed change, with large torque transmission and high transmission efficiency; it can be shifted in a stationary state, a rotating state, and a riding state, is convenient for speed regulation, and is light in weight and small in size.

[0050] It should be noted that the driving source 41 can be a motor. The motor is controlled to drive the speed regulating wheel 42 to rotate, thereby driving the variable speed generating wheel 3 to slide. The first direction can be the clockwise direction, and the second direction can be the counterclockwise direction. One of the first driving wheel 2 and the variable speed generating wheel 3 is a speed input wheel, and the other is a speed output wheel. For example, the first driving wheel 2 is the input wheel, and the variable speed generating wheel 3 is the output wheel.

[0051] It should be understood that the first driving wheel 2, the first locking member 5, and the variable speed generating wheel 3 constitute an overrunning clutch; among them, taking the first driving wheel 2 as the speed input wheel as an example, when the first driving wheel 2 rotates clockwise, all the first locking members 5 rotate clockwise following the first driving wheel 2, and all the first locking members 5 are fixed to the variable speed generating wheel 3. At this time, the variable speed generating wheel 3 rotates clockwise; when the first driving wheel 2 rotates counterclockwise, all the first locking members 5 rotate counterclockwise following the first driving wheel 2, and all the first locking members 5 can slide relative to the variable speed generating wheel 3. At this time, the variable speed generating wheel 3 remains stationary.

[0052] Please refer to Figure 2 and Figure 3, in some embodiments, the adjusting assembly 4 further includes a transmission mechanism 43. The transmission mechanism 43 includes a first transmission member 431 and a second transmission member 432. The first transmission member 431 is disposed on the driving source 41, and the second transmission member 432 is disposed on the speed regulating wheel 42. The first transmission member 431 and the second transmission member 432 are engaged with each other so that the driving source 41 drives the speed regulating wheel 42 to rotate. Among them, the driving source 41 can be a rotary motor. The rotary motor drives the first transmission member 431 to rotate, and the first transmission member 431 and the second transmission member 432 are engaged with each other so that the rotary motor can drive the speed regulating wheel 42 to rotate. Among them, the first transmission member 431 and the second transmission member 432 can be either gear transmission or worm and worm gear transmission.

[0053] It should be noted that, in some other embodiments, the driving source 41 can also be a linear motor. The linear motor drives the first transmission member 431 to move, and the first transmission member 431 and the second transmission member 432 are engaged with each other so that the linear motor can drive the speed regulating wheel 42 to rotate. Among them, the first transmission member 431 can be a rack, and the second transmission member 432 can be a gear. The driving source 41 can also directly drive the speed regulating wheel 42 to rotate. For example, the rotary motor directly drives the speed regulating wheel 42 to rotate. There can also be belt drive, chain drive, etc. between the driving source 41 and the speed regulating wheel 42.

[0054] Please refer to Figure 2 and Figure 3 , limited by the setting manner of the driving source 41 and the speed regulating wheel 42. For example, there is a large height difference between the driving source 41 and the speed regulating wheel 42. The transmission mechanism 43 further includes a third transmission member 433. The third transmission member 433 is rotatably disposed on the base 1. The rotating shaft between the third transmission member 433 and the base 1 and the rotating shaft between the speed regulating wheel 42 and the base 1 are parallel to each other. The third transmission member 433 is respectively engaged with the first transmission member 431 and the second transmission member 432. The height difference between the driving source 41 and the speed regulating wheel 42 is eliminated through the third transmission member 433, so as to transmit the power of the driving source 41 to the speed regulating wheel 42. According to actual needs, both between the first transmission member 431 and the third transmission member 433 and between the second transmission member 432 and the third transmission member 433 can be worm and worm gear transmission to prevent the offset distance of the speed change wheel 3 from being difficult to adjust due to the too fast rotation speed of the rotary motor. For example, the first transmission member 431 can be a worm, the second transmission member 432 can be a worm, and the third transmission member 433 can be a worm wheel.

[0055] Please refer to Figure 2 and Figure 3, the transmission mechanism 43 further includes a rotating shaft 435 and a fourth transmission member 434. The rotating shaft 435 is rotatably arranged on the base 1, and the central axis of the rotating shaft 435 is parallel to that of the base 1. The third transmission member 433 is fixed to one end of the rotating shaft 435 away from the base 1; the fourth transmission member 434 is fixed to one end of the rotating shaft 435 close to the base 1, and the fourth transmission member 434 is in meshing engagement with the second transmission member 432; wherein, the first transmission member 431 can be a worm, the second transmission member 432 can be a gear, the third transmission member 433 can be a turbine, and the fourth transmission member 434 can be a gear. Setting the turbine on the rotating shaft 435 can reduce the load weight of the drive source 41 compared with setting it on the drive source 41; the gear transmission between the second transmission member 432 and the fourth transmission member 434 can improve the rotational stability of the speed regulating wheel 42.

[0056] It should be noted that the fourth transmission member 434 can be integrally provided with the rotating shaft 435, and the second transmission member 432 can be integrally provided with the speed regulating wheel 42, which is convenient for processing and forming and is also beneficial to improving the transmission stability between the second transmission member 432 and the fourth transmission member 434.

[0057] Please refer to Figure 1 、 Figure 2 and Figure 3 , the adjusting assembly 4 further includes a mounting seat 44. The mounting seat 44 is fixed to the base 1 and is provided with a receiving cavity 4411. The rotating shaft 435, the first transmission member 431, the second transmission member 432, the third transmission member 433 and the fourth transmission member 434 are all received in the receiving cavity 4411, which can prevent sundries from falling on the first transmission member 431, the second transmission member 432, the third transmission member 433 and the fourth transmission member 434 and improve the smoothness and stability of the transmission. The transmission mechanism 43 further includes a first bearing 436 and a second bearing 437. The first bearing 436 is respectively connected to the mounting seat 44 and one end of the rotating shaft 435 away from the base 1, and the second bearing 437 is respectively connected to the mounting seat 44 and one end of the rotating shaft 435 close to the base 1. The rotating shaft 435 is rotatably arranged on the mounting seat 44 through the first bearing 436 and the second bearing 437, which is beneficial to improving the smoothness of the rotation of the rotating shaft 435. According to actual needs, both the first bearing 436 and the second bearing 437 can be ball bearings. The outer ring of the ball bearing is mounted on the mounting seat 44, and the inner ring is sleeved on the rotating shaft 435.

[0058] Please refer to Figure 2 and Figure 3, the driving source 41 includes a driving part 411 and an output shaft 412. The driving part 411 is fixed to the base 1 and is arranged outside the mounting seat 44. One end of the output shaft 412 is connected to the driving part 411 and the other end penetrates through the mounting seat 44. The first transmission member 431 is sleeved outside the output shaft 412. The driving part 411 drives the output shaft 412 to rotate, and the first transmission member 431 rotates following the output shaft 412. Among them, the first transmission member 431 can be attached to the output shaft 412 by screws. The adjusting assembly 4 further includes a first limiting ring 45 and a second limiting ring 46. The first limiting ring 45 and the second limiting ring 46 are respectively sleeved at both ends of the output shaft 412 and are received in the receiving cavity 4411. The first transmission member 431 is arranged between the first limiting ring 45 and the second limiting ring 46. The ends of the first limiting ring 45 and the second limiting ring 46 away from the first transmission member 431 respectively abut against the opposite side walls of the receiving cavity 4411. The first limiting ring 45 and the second limiting ring 46 can prevent the first transmission member 431 from axially moving, and improve the transmission stability between the first transmission member 431 and the third transmission member 433.

[0059] Please refer to Figure 2 and Figure 3 , the mounting seat 44 is provided with a first mounting hole 4413 and a second mounting hole 4414. The transmission mechanism 43 further includes a third bearing 438 and a fourth bearing 439. The third bearing 438 and the fourth bearing 439 are respectively assembled in the first mounting hole 4413 and the second mounting hole 4414, and the third bearing 438 and the fourth bearing 439 are respectively sleeved at both ends of the output shaft 412, improving the smoothness of the rotation of the output shaft 412. One end of the output shaft 412 away from the driving part 411 extends outside the mounting seat 44, and a protective sleeve 413 is fixed to the end of the output shaft 412 extending outside the mounting seat 44. The protective sleeve 413 can prevent the output shaft 412 from being exposed to the outside. According to actual needs, both the third bearing 438 and the fourth bearing 439 can be ball bearings. The inner rings of the third bearing 438 and the fourth bearing 439 are sleeved outside the output shaft 412, and the outer rings are assembled on the mounting seat 44. The mounting seat 44 is further provided with a locking hole 4412, and the connecting plate is locked in the locking hole 4412 by screws, thereby connecting the connecting plate and the mounting seat 44.

[0060] Please refer to Figure 2 and Figure 3, the mounting base 44 includes a housing 441, an upper cover plate 442 and a lower cover plate 443. The upper cover plate 442 and the lower cover plate 443 are detachably connected to both ends of the housing 441, and the upper cover plate 442, the lower cover plate 443 and the housing 441 together enclose a receiving cavity 4411. The first transmission member 431 and the third transmission member 433 are disposed opposite to the upper cover plate 442, and the fourth transmission member 434 and the lower cover plate 443 are disposed opposite to each other. When the upper cover plate 442 and the lower cover plate 443 are removed, it is convenient to repair the first transmission member 431, the third transmission member 433 and the fourth transmission member 434.

[0061] Please refer to Figure 4 , Figure 6 and Figure 7 , the continuously variable transmission further includes an eccentric seat 6. The eccentric seat 6 is sleeved outside the base 1 and is slidably assembled on the base 1 along the radial direction of the base 1. The variable speed driving wheel 3 is rotatably disposed outside the eccentric seat 6, and the variable speed driving wheel 3 is fixed to the eccentric seat 6 in the radial direction of the base 1, so that the variable speed driving wheel 3 can move along the radial direction of the base 1 following the eccentric seat 6. Wherein, the eccentric seat 6 is provided with a fifth transmission member 61, and the speed regulating wheel 42 is provided with a sixth transmission member 421. The fifth transmission member 61 is engaged with the sixth transmission member 421, so that the speed regulating wheel 42 drives the eccentric seat 6 to slide relative to the base 1, and the eccentric seat 6 drives the variable speed driving wheel 3 to move to be eccentric relative to the first power wheel 2. According to actual needs, the fifth transmission member 61 can be a rack, and the length of the rack extends along the radial direction of the base 1; the sixth transmission member 421 and the second transmission member 432 are respectively disposed at both ends of the speed regulating wheel 42, and the sixth transmission member 421 can be a gear, and the gear is integrally provided with the speed regulating wheel 42.

[0062] Please refer to Figure 5 and Figure 6 , the eccentric seat 6 is provided with a relief through hole 62, the length of the relief through hole 62 extends along the radial direction of the base 1, the circumferential surface of the base 1 is provided with a notch 11, the base 1 is slidably assembled in the relief through hole 62, and the notch 11 is at least partially located in the relief through hole 62, so as to provide sufficient space for the eccentric seat 6 to slide relative to the base 1 along the radial direction of the base 1.

[0063] Please refer to Figures 4 to 7, on one side of the variable-speed driving wheel 3 close to the first driving wheel 2, there is an annular first installation groove 31 coaxially arranged with the variable-speed driving wheel 3, and a plurality of first locking members 5 are slidably assembled in the first installation groove 31; wherein, arranging the first locking members 5 in the first installation groove 31 can not only ensure that the first locking members 5 slide along the circumferential direction of the base 1, but also ensure that the first locking members 5 are fixed to the variable-speed driving wheel 3 in the radial direction of the base 1. On one side of the first driving wheel 2 close to the variable-speed driving wheel 3, there are a plurality of first connecting grooves 21 extending along the radial direction of the base 1. The plurality of first connecting grooves 21 are distributed at intervals around the central axis of the first driving wheel 2, and the plurality of first locking members 5 are slidably connected to the plurality of first connecting grooves 21 in a one-to-one correspondence; wherein, arranging the first locking members 5 in the first connecting grooves 21 can not only ensure that the first locking members 5 slide along the radial direction of the base 1, but also ensure that the first locking members 5 are fixed to the first driving wheel 2 in the circumferential direction of the base 1.

[0064] Please refer to Figure 5 and Figure 6 , in a specific example, there may be eight first locking members 5, and there are eight first connecting grooves 21 evenly distributed on the first driving wheel 2. The eight first locking members 5 are distributed in the first installation groove 31, and the eight first locking members 5 are slidably assembled in the eight first connecting grooves 21 in a one-to-one correspondence. The included angles between any two adjacent first locking members 5 are different, and there are countless included angle degrees between two adjacent first locking members 5. When the variable-speed driving wheel 3 and the first driving wheel 2 are eccentrically arranged, when the first driving wheel 2 is rotated clockwise, the first driving wheel 2 drives the first locking members 5 to rotate. The eight first locking members 5 have continuous linear velocity changes and angular velocity changes in the first installation groove 31, and only the first locking member 5 with the maximum linear velocity is fixed to the variable-speed driving wheel 3, and the remaining seven first locking members 5 follow in the first installation groove 31. When the first driving wheel 2 is continuously rotated, the linear velocities of the respective first locking members 5 continuously change, and the first locking member 5 with the maximum linear velocity will automatically lock the variable-speed driving wheel 3 to drive the variable-speed driving wheel 3 to rotate in relay, thereby completing speed change.

[0065] The principle of stepless speed change is described below:

[0066] Please refer to Figure 6 and Figure 7 , the minimum included angle between two adjacent first locking members 5 is N, and the maximum included angle is M (M is greater than N). The numerical result of M divided by N is the maximum speed change range, and the eccentric distance between the variable-speed driving wheel 3 and the first driving wheel 2 determines the maximum speed ratio. During the process of two adjacent first locking members 5 sliding counterclockwise from the minimum included angle N to the maximum included angle M, the included angle between the two adjacent first locking members 5 will continuously increase from N to M, thus forming countless included angle degrees, thereby forming stepless speed change.

[0067] Please refer to Figure 5 、 Figure 8 and Figure 9 , the first locking member 5 includes a first sliding seat 51, a first locking portion 53, a first elastic member 54 and a first guiding portion 52. The first sliding seat 51 is slidably assembled in the first mounting groove 31. The first sliding seat 51 is provided with a first accommodating groove 511. The first mounting groove 31 is provided with a first inner side wall 311 and a first outer side wall 312 which are distributed oppositely. The notch of the first accommodating groove 511 is arranged opposite to the first outer side wall 312. The two sides of the first sliding seat 51 are adapted to the first inner side wall 311 and the first outer side wall 312, which is beneficial to the sliding of the first sliding seat 51 in the first mounting groove 31, and the first sliding seat 51 abuts against the first inner side wall 311. The first guiding portion 52 is fixed to the bottom wall of the first sliding seat 51 opposite to the notch of the first accommodating groove 511. One side of the first guiding portion 52 opposite to the notch of the first accommodating groove 511 is provided with a first guiding inclined surface 521. The first guiding inclined surface 521 inclines in the first direction from the top end to the bottom end; wherein, the distance between the top end of the first guiding inclined surface 521 and the first outer side wall 312 is less than the distance between the bottom end of the first guiding inclined surface 521 and the first outer side wall 312. The first locking portion 53 is received in the first accommodating groove 511. One side of the first locking portion 53 is slidably assembled on the first guiding inclined surface 521, and the other side abuts against the first outer side wall 312. The side of the first locking portion 53 in contact with the first outer side wall 312 is adapted to the first outer side wall 312. The first locking portion 53 and the first sliding seat 51 jointly lock the first locking member 5 on the speed change generating wheel 3. The first elastic member 54 is received in the first accommodating groove 511. One end of the first elastic member 54 is connected to the first locking portion 53, and the other end is connected to the first sliding seat 51. The first elastic member 54 is used to provide an elastic force for driving the first locking portion 53 to move towards the top end of the first guiding inclined surface 521.

[0068] According to actual needs, the widths of the two sides of the first sliding seat 51 are less than the groove width of the first mounting groove 31. The two sides of the first sliding seat 51 are both arc surfaces. The arc surface of the side of the first sliding seat 51 abutting against the first inner side wall 311 is concave, and the arc surface of the other side is convex; the first guiding portion 52 can be integrally provided or separately provided with the first sliding seat 51. The first guiding portion 52 can be a wedge-shaped block; the first locking portion 53 can be a cylinder; the first elastic member 54 can be a spring.

[0069] It should be noted that when the first driving wheel 2 rotates clockwise, the first sliding seat 51 abuts against the first inner wall 311, the first locking portion 53 is located at the top of the first guiding portion 52, and the first locking portion 53 abuts against the first outer wall 312, so that the first locking member 5 is in a locked state fixed to the variable-speed generating wheel 3; when the first driving wheel 2 rotates counterclockwise, the first locking portion 53 is located at the bottom of the first guiding portion 52, and there is a gap between the first locking portion 53 and the first outer wall 312, so that the first locking member 5 can slide relative to the variable-speed generating wheel 3.

[0070] Please refer to Figure 8 and Figure 9 As shown in FIGS. and, the first locking member 5 further includes a first connecting portion 55, a first protective sleeve 56 and a first friction block 57. The first connecting portion 55 is fixed to one end of the first sliding seat 51 away from the variable-speed generating wheel 3, and the first connecting portion 55 is slidably assembled in the first connecting groove 21; the first protective sleeve 56 is sleeved outside the first connecting portion 55, and the first protective sleeve 56 and the first connecting portion 55 are detachably connected. The first protective sleeve 56 can protect the first connecting portion 55, and at the same time, it is convenient to replace after the first protective sleeve 56 is worn, reducing the maintenance cost. The first friction block 57 is detachably arranged on one side of the first sliding seat 51 close to the variable-speed generating wheel 3, and the first friction block 57 is in contact with the bottom wall of the first mounting groove 31. The arrangement of the first friction block 57 can protect the first sliding seat 51, and at the same time, it is convenient to replace after the first friction block 57 is worn, reducing the maintenance cost. According to actual needs, the first protective sleeve 56 can be made of wear-resistant material, the first protective sleeve 56 and the first connecting portion 55 can be in an insertion connection, and the first friction block 57 and the first sliding seat 51 can be in an insertion connection.

[0071] Please refer to Figure 4 and Figure 5 As shown in FIGS.,, and, the continuously variable transmission further includes a first inner friction ring 9, a first outer friction ring 10 and a third limiting ring 20. The first inner friction ring 9 is fixed on the first inner wall 311, and the first outer friction ring 10 is fixed on the first outer wall 312. The arrangement of the first inner friction ring 9 and the first outer friction ring 10 can prevent the variable-speed generating wheel 3 from being worn. The third limiting ring 20 is fixed on the variable-speed generating wheel 3 and is arranged above the first mounting groove 31. The third limiting ring 20 is used to prevent the first locking member 5 from shaking up and down in the first mounting groove 31.

[0072] Please refer to Figure 1 、 Figure 5 and Figure 6, the continuously variable transmission further includes a second driving wheel 7 and a second locking member 8. The second driving wheel 7 is rotatably disposed outside the base 1 and on the side of the variable speed generating wheel 3 away from the first driving wheel 2, and the second driving wheel 7 is coaxially disposed with the base 1; the second locking member 8 is slidably assembled to the variable speed generating wheel 3 along the circumferential direction of the base 1 and slidably connected to the second driving wheel 7 along the radial direction of the base 1. The second locking member 8 is fixed to the variable speed generating wheel 3 in the radial direction of the base 1 and fixed to the second driving wheel 7 in the circumferential direction of the base 1, so that when the variable speed generating wheel 3 rotates, the second driving wheel 7 can be driven to rotate through the second locking member 8, and the variable speed generating wheel 3 can drive the second locking member 8 to move to be eccentrically disposed relative to the second driving wheel 7; there are a plurality of second locking members 8, and the plurality of second locking members 8 are distributed in the circumferential direction of the variable speed generating wheel 3 and enclose a concentric circle coaxially disposed with the variable speed generating wheel 3; wherein, the second locking member 8 has a locking state in which it can be fixed to the variable speed generating wheel 3 along the first direction and an unlocking state in which it can slide relative to the variable speed generating wheel 3 along the second direction. When the variable speed generating wheel 3 is eccentric relative to the second driving wheel 7 and each second locking member 8 slides along the first direction, only the second locking member 8 with the maximum linear velocity is fixed to the variable speed generating wheel 3.

[0073] The drive source 41 drives the speed regulating wheel 42 to rotate. When the variable speed generating wheel 3 moves a certain distance along the radial direction of the base 1 under the drive of the speed regulating wheel 42, the variable speed generating wheel 3 is eccentrically disposed relative to the second driving wheel 7, and the concentric circle coaxially disposed with the variable speed generating wheel 3 formed by enclosing each second locking member 8 is eccentrically disposed relative to the second driving wheel 7. When the variable speed generating wheel 3 rotates in the first direction, each second locking member 8 can undergo continuous linear velocity changes and angular velocity changes on the variable speed generating wheel 3. Only the second locking member 8 with the maximum linear velocity is fixed to the variable speed generating wheel 3, and the remaining second locking members 8 follow on the variable speed generating wheel 3. The second driving wheel 7 rotates synchronously with the second locking member 8 with the maximum linear velocity. Thus, the eccentric distance between the variable speed generating wheel 3 and the second driving wheel 7 can be changed by adjusting the speed regulating wheel 42, and the maximum linear velocity of the second locking member 8 can be changed, so that the rotational speed of the second driving wheel 7 changes, completing the adjustment of the rotational speed of the second driving wheel 7 and realizing stepless speed change.

[0074] It should be noted that a continuously variable transmission mechanism is formed among the first driving wheel 2, the variable speed generating wheel 3 and the first locking member 5, and another continuously variable transmission mechanism is formed among the second driving wheel 7, the variable speed generating wheel 3 and the second locking member 8, so that the continuously variable transmission in the present invention is a two-stage speed change. Among them, the first driving wheel 2 can be used as a speed input wheel, and the second driving wheel 7 can be used as a speed output wheel.

[0075] It should be understood that the second driving wheel 7, the second locking member 8 and the speed-changing driving wheel 3 form an overrunning clutch. Taking the speed-changing driving wheel 3 as the speed input wheel as an example, when the speed-changing driving wheel 3 rotates clockwise, the second locking member 8 is fixed to the speed-changing driving wheel 3, and all the second locking members 8 rotate clockwise following the speed-changing driving wheel 3, and all the second locking members 8 drive the second driving wheel 7 to rotate clockwise. When the speed-changing driving wheel 3 rotates counterclockwise, all the second locking members 8 can slide relative to the speed-changing driving wheel 3, and at this time, the second driving wheel 7 remains stationary.

[0076] Please refer to Figure 4 and Figure 5 , on one side of the speed-changing driving wheel 3 close to the second driving wheel 7, there is a ring-shaped second installation groove 32, and the second installation groove 32 is coaxially arranged with the speed-changing driving wheel 3. A plurality of second locking members 8 are slidably assembled in the second installation groove 32. Among them, arranging the second locking members 8 in the second installation groove 32 can not only ensure that the second locking members 8 slide along the circumferential direction of the base 1, but also ensure that the second locking members 8 are fixed to the speed-changing driving wheel 3 in the radial direction of the base 1. On the side of the second driving wheel 7 close to the speed-changing driving wheel 3, there are a plurality of second connection grooves 71 extending along the radial direction of the base 1. A plurality of second connection grooves 71 are distributed at intervals around the central axis of the second driving wheel 7, and a plurality of second locking members 8 are slidably connected to the plurality of second connection grooves 71 in a one-to-one correspondence. Among them, arranging the second locking members 8 in the second connection grooves 71 can not only ensure that the second locking members 8 slide along the radial direction of the base 1, but also ensure that the second locking members 8 are fixed to the second driving wheel 7 in the circumferential direction of the base 1.

[0077] Please refer to Figure 4 and Figure 5 , in a specific example, there can be eight second locking members 8. There are eight second connection grooves 71 evenly distributed on the second driving wheel 7. The eight second locking members 8 are distributed in the second installation groove 32, and the eight second locking members 8 are slidably assembled in the eight second connection grooves 71 in a one-to-one correspondence. The included angle between any two adjacent second locking members 8 is different, and there are countless included angle angles between any two adjacent second locking members 8. When the speed-changing driving wheel 3 and the second driving wheel 7 are eccentrically arranged, when the speed-changing driving wheel 3 rotates clockwise, only the second locking member 8 with the maximum linear velocity is fixed to the speed-changing driving wheel 3, and the remaining seven second locking members 8 follow in the second installation groove 32. Continuously rotating the speed-changing driving wheel 3, the linear velocity of each second locking member 8 continuously changes, and the second locking member 8 with the maximum linear velocity will automatically lock the speed-changing driving wheel 3 to drive the second driving wheel 7 to rotate by relay, so as to complete the speed change.

[0078] Please refer to Figure 5 , Figure 10 and Figure 11, the second locking member 8 includes a second sliding seat 81, a second guiding portion 82, a second locking portion 83 and a second elastic portion. The second sliding seat 81 is slidably assembled in the second installation groove 32. The second sliding seat 81 is provided with a second accommodating groove 811. The second installation groove 32 is provided with a second inner side wall 321 and a second outer side wall 322 which are oppositely distributed. The notch of the second accommodating groove 811 is arranged opposite to the second outer side wall 322. The two sides of the second sliding seat 81 are adapted to the second inner side wall 321 and the second outer side wall 322, which is beneficial to the sliding of the second sliding seat 81 in the second installation groove 32, and the second sliding seat 81 abuts against the second inner side wall 321. The second guiding portion 82 is fixed to the bottom wall of the second sliding seat 81 opposite to the notch of the second accommodating groove 811. One side of the second guiding portion 82 opposite to the notch of the second accommodating groove 811 is provided with a second guiding inclined surface 821, and the second guiding inclined surface 821 inclines in the second direction from the top end to the bottom end; wherein, the distance between the top end of the second guiding inclined surface 821 and the second outer side wall 322 is less than the distance between the bottom end of the second guiding inclined surface 821 and the second outer side wall 322. The second locking portion 83 is received in the second accommodating groove 811. One side of the second locking portion 83 is slidably assembled on the second guiding inclined surface 821, and the other side abuts against the second outer side wall 322. The side of the second locking portion 83 in contact with the second outer side wall 322 is adapted to the second outer side wall 322. The second locking portion 83 and the second sliding seat 81 jointly lock the second locking member 8 on the speed change generating wheel 3. The second elastic member 84 is received in the second accommodating groove 811. One end of the second elastic member 84 is connected to the second locking portion 83, and the other end is connected to the second sliding seat 81. The second elastic member 84 is used to provide an elastic force for driving the second locking portion 83 to move towards the top end of the second guiding inclined surface 821.

[0079] According to actual needs, the widths of the two sides of the second sliding seat 81 are less than the groove width of the second installation groove 32. The two sides of the second sliding seat 81 are both arc surfaces, and the two arc surfaces of the second sliding seat 81 in contact with the second inner side wall 321 are concave, and the other arc surface is convex; the second guiding portion 82 can be integrally or separately provided with the second sliding seat 81, and the second guiding portion 82 can be a wedge-shaped block; the second locking portion 83 can be a cylinder; the second elastic member 84 can be a spring.

[0080] It should be noted that when the speed change generating wheel 3 is rotated clockwise, the second sliding seat 81 abuts against the second inner side wall 321, the second locking portion 83 is located at the top end of the second guiding portion 82, and the second locking portion 83 abuts against the second outer side wall 322, so that the second locking member 8 is in a locked state fixed to the speed change generating wheel 3; when the speed change generating wheel 3 is rotated counterclockwise, the second locking portion 83 is located at the bottom end of the second guiding portion 82, and there is a gap between the second locking portion 83 and the second outer side wall 322, so that the second locking member 8 can slide relative to the speed change generating wheel 3.

[0081] Please refer to Figure 10 and Figure 11 The second locking member 8 further includes a second connecting portion 85, a second protective sleeve 86 and a second friction block 87. The arrangement of the second connecting portion 85, the second protective sleeve 86 and the second friction block 87 in the second locking member 8 is the same as that of the first connecting portion 55, the first protective sleeve 56 and the first friction block 57 in the first locking member 5, and will not be described repeatedly here.

[0082] It should be noted that the first locking member 5 and the second locking member 8 in the embodiments of the present invention do not require an external triggering structure to trigger so that they are fixed to the variable speed generating wheel 3 or can slide relative to the variable speed generating wheel 3, so that the components that cooperate with the triggering structure can be removed from the first locking member 5 and the second locking member 8, greatly simplifying the structures of the first locking member 5 and the second locking member 8.

[0083] Please refer to Figure 4 and Figure 5 The continuously variable transmission further includes a second inner friction ring 30, a second outer friction ring 40 and a fourth limiting ring 50. The second inner friction ring 30 is fixed on the second inner wall 321, and the second outer friction ring 40 is fixed on the second outer wall 322. The arrangement of the second inner friction ring 30 and the second outer friction ring 40 can prevent the variable speed generating wheel 3 from being worn. The fourth limiting ring 50 is fixed on the variable speed generating wheel 3 and is arranged above the second installation groove 32. The fourth limiting ring 50 is used to prevent the second locking member 8 from shaking up and down in the second installation groove 32.

[0084] Please refer to Figure 1 、 Figure 4 and Figure 6 The continuously variable transmission further includes a fifth bearing 60, a sixth bearing 70, a seventh bearing 80 and an eighth bearing 90. The speed regulating wheel 42 is rotatably arranged in the base 1 through the fifth bearing 60, the first power wheel 2 is rotatably arranged outside the base 1 through the sixth bearing 70, the variable speed generating wheel 3 is rotatably arranged outside the eccentric seat 6 through the seventh bearing 80, and the second power wheel 7 is rotatably arranged outside the base 1 through the eighth bearing 90. A support plate 12 is further arranged on the base 1, and the eccentric seat 6 is slidably assembled on the support plate 12.

[0085] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuously variable transmission, characterized in that, Comprising: A base; A first driving wheel rotatably arranged outside the base, and the first driving wheel is coaxially arranged with the base; A speed-changing generating wheel rotatably arranged outside the base and located on one side of the first driving wheel. The speed-changing generating wheel is slidably assembled on the base along the radial direction of the base. The rotating shaft between the speed-changing generating wheel and the base is parallel or coaxial with the central axis of the base; An adjusting assembly including a driving source and a speed-regulating wheel. The driving source is arranged on the base, the speed-regulating wheel is rotatably arranged on the base, the speed-regulating wheel is respectively connected to the driving source and the speed-changing generating wheel. The driving source is used to drive the speed-regulating wheel to rotate relative to the base, and the speed-regulating wheel is used to drive the speed-changing generating wheel to slide, so that the speed-changing generating wheel is eccentrically arranged relative to the first driving wheel; and, A first locking member slidably assembled on the speed-changing generating wheel along the circumferential direction of the base and slidably connected to the first driving wheel along the radial direction of the base. The first locking member is fixed to the speed-changing generating wheel in the radial direction of the base and fixed to the first driving wheel in the circumferential direction of the base. There are a plurality of first locking members, and the plurality of first locking members are distributed in the circumferential direction of the speed-changing generating wheel and enclose a concentric circle coaxially arranged with the speed-changing generating wheel; Wherein, the first locking member has a locking state in which it can be fixed to the speed-changing generating wheel along a first direction and an unlocking state in which it can slide relative to the speed-changing generating wheel along a second direction. The first direction is opposite to the second direction. When the speed-changing generating wheel is eccentric relative to the first driving wheel and each of the first locking members slides along the first direction, only the first locking member with the maximum linear velocity is fixed to the speed-changing generating wheel.

2. The continuously variable transmission according to claim 1, wherein, The adjusting assembly further includes a transmission mechanism. The transmission mechanism includes a first transmission member and a second transmission member. The first transmission member is arranged on the driving source, the second transmission member is arranged on the speed-regulating wheel, and the first transmission member is meshed and cooperated with the second transmission member, so that the driving source drives the speed-regulating wheel to rotate.

3. The continuously variable transmission according to claim 2, characterized in that, The transmission mechanism further includes a third transmission member rotatably arranged on the base. The rotating shaft between the third transmission member and the base and the rotating shaft between the speed-regulating wheel and the base are parallel to each other. The third transmission member is meshed and cooperated with the first transmission member and the second transmission member respectively.

4. The continuously variable transmission according to claim 3, characterized in that, The transmission mechanism further includes: A rotating shaft rotatably arranged on the base. The rotating shaft is parallel to the central axis of the base. The third transmission member is fixed to the end of the rotating shaft far from the base; and, A fourth transmission member fixed to the end of the rotating shaft close to the base. The fourth transmission member is meshed and cooperated with the second transmission member.

5. The continuously variable transmission according to claim 4, wherein, The adjusting assembly further includes a mounting seat fixed to the base and provided with a receiving cavity. The rotating shaft, the first transmission member, the second transmission member, the third transmission member and the fourth transmission member are all received in the receiving cavity; The transmission mechanism further includes a first bearing and a second bearing. The first bearing is respectively connected to the mounting seat and the end of the rotating shaft away from the base, and the second bearing is respectively connected to the mounting seat and the end of the rotating shaft close to the base.

6. The continuously variable transmission according to claim 5, characterized in that, The drive source includes a drive part and an output shaft. The drive part is fixed to the base and is disposed outside the mounting seat. One end of the output shaft is connected to the drive part and the other end penetrates through the mounting seat. The first transmission member is sleeved outside the output shaft; The adjusting assembly further includes a first limiting ring and a second limiting ring. The first limiting ring and the second limiting ring are respectively sleeved at both ends of the output shaft and are received in the receiving cavity. The first transmission member is disposed between the first limiting ring and the second limiting ring. One ends of the first limiting ring and the second limiting ring away from the first transmission member respectively abut against the opposite side walls of the receiving cavity.

7. The continuously variable transmission according to claim 1, characterized in that, The continuously variable transmission further includes an eccentric seat. The eccentric seat is sleeved outside the base and is slidably assembled on the base in the radial direction of the base. The variable speed generating wheel is rotatably disposed outside the eccentric seat, and the variable speed generating wheel is fixed to the eccentric seat in the radial direction of the base; Wherein, the eccentric seat is provided with a fifth transmission member, and the speed regulating wheel is provided with a sixth transmission member. The fifth transmission member is engaged with the sixth transmission member to enable the speed regulating wheel to drive the eccentric seat to slide relative to the base.

8. The continuously variable transmission according to claim 7, characterized in that, The eccentric seat is provided with a relief through hole, and the length of the relief through hole extends along the radial direction of the base; A notch is provided on the circumferential surface of the base. The base is slidably assembled in the relief through hole, and at least part of the notch is located in the relief through hole.

9. The continuously variable transmission according to claim 1, wherein The continuously variable transmission further includes: A second driving wheel, rotatably disposed outside the base and located on the side of the variable speed generating wheel away from the first driving wheel. The second driving wheel is coaxially arranged with the base; and, A second locking member, slidably assembled on the variable speed generating wheel in the circumferential direction of the base and slidably connected to the second driving wheel in the radial direction of the base. The second locking member is fixed to the variable speed generating wheel in the radial direction of the base and is fixed to the second driving wheel in the circumferential direction of the base. There are a plurality of second locking members, and the plurality of second locking members are distributed in the circumferential direction of the variable speed generating wheel and enclose a concentric circle coaxially arranged with the variable speed generating wheel; Wherein, the second locking member has a locking state in which it can be fixed to the variable speed generating wheel along the first direction and an unlocking state in which it can slide relative to the variable speed generating wheel along the second direction. When the variable speed generating wheel is eccentric relative to the second driving wheel and each of the second locking members slides along the first direction, only one of the second locking members with the maximum linear velocity is fixed to the variable speed generating wheel.

10. A bicycle, characterized in that, Including the continuously variable transmission according to any one of claims 1-9.

Images