Clutch, drive device and motorcycle

Abstract

The present invention discloses a clutch, a drive device, and a motorcycle, comprising a driving component and a driven component, wherein the driving component comprises a driving housing and a plurality of driving plates; the driven component comprises a pressure plate, a driven hub, a reset member, and a driven plate, wherein the pressure plate, the driven hub, and the driving housing are coaxially arranged, and the driven plates and the driving plates are alternately arranged. The pressure plate can move axially along the driving housing to maintain or release the friction between the driving plates and the driven plates, and the reset member is used to reset the pressure plate; the pressure plate is provided with a first mating portion, and the driven hub is provided with a second mating portion, wherein the projected outer contour of the first mating portion is located within the projected outer contour of the second mating portion when projected along the axial direction of the driving housing. The driving plate that contacts and rubs against the pressure plate does not need to be reduced in design to avoid the first mating portion, and can be designed to the same specifications as other driving plates, thereby ensuring the normal unit surface pressure and normal wear of the driving plate during transmission, and avoiding failure and ablation problems caused thereby.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycles, and in particular to a clutch, a drive device and a motorcycle. Background Art

[0002] The clutch is used to achieve transmission or separation between the driving device and the driven device. The clutch usually includes an active housing, a driven hub, and a pressure plate. The active housing is equipped with an active plate, and the driven hub and pressure plate are equipped with a driven plate. Under normal conditions, the active plate and the driven plate are in contact and pressed against each other. When the driving device transmits power and drives the active housing to rotate, friction between the active plate and the driven plate drives the driven hub and pressure plate to rotate, achieving transmission. When external force is applied to the pressure plate or the driven hub, the squeezing force between the driven plate and the active plate is released, eliminating friction and preventing the driven hub and pressure plate from rotating with the active housing, achieving separation.

[0003] However, in traditional clutch structures, the root circle diameter of the pressure plate spline is usually designed to be larger than the top circle diameter of the driven hub spline, and the inner diameter of the active plate in contact with the pressure plate is made larger, so the active plate in contact and friction with the pressure plate is usually smaller in area. Because this results in a greater unit surface pressure on the active plate and more severe wear, it is prone to wear and failure, or even ablation, after long-term use. Summary of the Invention

[0004] Based on this, a clutch, a drive device and a motorcycle are provided to address the problem that the active plate in the traditional clutch that contacts and rubs against the pressure plate has a high unit surface pressure, is easily worn and even ablated.

[0005] The technical solution is as follows:

[0006] In one aspect, the present application provides a clutch, comprising:

[0007] An active component, the active component comprising an active housing and a plurality of active plates, the active housing having a main body and an annular portion disposed on the main body, the active plates being annularly arranged and spaced apart on the inner side of the annular portion, the active plates being capable of rotating with the active housing and also capable of moving axially along the active housing;

[0008] A driven assembly, the driven assembly comprising a pressure plate, a driven hub, a reset member and a driven plate, the pressure plate, the driven hub and the active housing being coaxially arranged, a plurality of driven plates being provided and arranged in an annular shape, the driven plates and the active plates being alternately arranged, the projected contour of the active plate and the projected contour of the driven plate at least partially overlapping when projected along the axial direction of the active housing, the pressure plate being able to move along the axial direction of the active housing to maintain or release the friction between the active plate and the driven plate, and the reset member being used to reset the pressure plate;

[0009] The pressure plate is provided with a first matching portion, and the driven hub is provided with a second matching portion. The second matching portion and the first matching portion are both located on the inner side of the annular portion. When projected along the axial direction of the active housing, the projected outer contour of the first matching portion is located within the projected outer contour of the second matching portion. A part of the driven plates is provided on the first matching portion and can rotate with the pressure plate, and another part of the driven plates is provided on the second matching portion and can rotate with the driven hub, and all of the driven plates can move along the axial direction of the active housing.

[0010] In the above-mentioned clutch, the active housing can rotate and drive the active plate to rotate, and the driven plate and the active plate are alternately arranged. The driven plate and the active plate are at least partially in contact, and friction is generated between the active plate and the driven plate and power is transmitted to the driven plate, so that the driven plate drives the pressure plate and the driven hub to rotate, thereby realizing power transmission; when external force is applied to the pressure plate to make the pressure plate move along the axial direction of the active housing, the driven plate moves with the pressure plate and the driven hub, releasing the friction between the active plate and the driven plate, thereby making the driven hub and the pressure plate no longer rotate with the active housing, thereby realizing separation; since the projected outer contour of the first matching part is located within the projected outer contour of the second matching part, the active plate in contact and friction with the pressure plate does not need to be reduced in design to avoid the first matching part, so that it can be designed to the same specifications as other active plates, ensuring the normal unit surface pressure size and normal wear of the active plate during transmission, and avoiding failure and ablation problems caused thereby.

[0011] The technical solution is further described below:

[0012] In one embodiment, the pressure plate is further provided with a first pressing portion, and the driven hub is further provided with a second pressing portion, the second pressing portion and the first pressing portion are both located on the inner side of the annular portion, and the first pressing portion is located between the second pressing portion and the main body; the active plate closest to the main body abuts against the first pressing portion, and the active plate farthest from the main body abuts against the second pressing portion.

[0013] In one embodiment, the first mating portion includes a first key tooth, a plurality of the first key teeth are provided and are arranged around the circumference of the pressure plate, the tooth grooves between adjacent first key teeth extend along the axial direction of the active housing, and a portion of the edge of the driven plate is provided with a first key groove, a plurality of the first key grooves are provided and match the first key teeth;

[0014] The second mating portion includes a second key tooth, which is provided in plurality and arranged circumferentially around the driven hub, and the tooth grooves between adjacent second key teeth extend along the axial direction of the active housing, and the edge of another part of the driven plate is provided with a second key groove, which is provided in plurality and matches the second key teeth.

[0015] In one embodiment, the inner ring diameters of all the active plates are the same; or / and the diameter of the tooth top circle of the first key tooth is smaller than the diameter of the tooth root circle of the second key tooth.

[0016] In one embodiment, the pressure plate is further provided with a fixing column, at least two of which are provided and spaced apart along the circumference of the pressure plate; the driven hub is provided with an avoidance through-hole, at least two of which are provided and correspond one-to-one to the fixing column; the clutch further includes a fixing seat, which is located on the side of the driven hub away from the pressure plate; the fixing column is passed through the avoidance through-hole and is fixed to the fixing seat.

[0017] In one embodiment, the driven hub is provided with a positioning groove, the notch of the positioning groove faces the fixing seat, one end of the reset member abuts against the bottom wall of the positioning groove, and the other end of the reset member abuts against the fixing seat.

[0018] In one embodiment, there are at least two positioning grooves and they are spaced apart along the circumference of the driven hub, and there are at least two reset members and they correspond one-to-one to the positioning grooves.

[0019] In one embodiment, the active component further includes a driving gear, which is fixed to the active housing and located on a side of the active housing away from the driven component. The driving gear is coaxially arranged with the active housing and can drive the active housing to rotate.

[0020] On the other hand, the present application also provides a driving device, comprising a clutch as described in any of the above technical solutions.

[0021] In addition, the present application also provides a motorcycle, comprising a driving device as described in the above technical solution.

[0022] The above-mentioned drive device and motorcycle both adopt the aforementioned clutch, the active housing can rotate and drive the active plate to rotate, the driven plate and the active plate are arranged alternately, the driven plate and the active plate are at least partially in contact, friction is generated between the active plate and the driven plate and power is transmitted to the driven plate, so that the driven plate drives the pressure plate and the driven hub to rotate, thereby realizing power transmission; when external force is applied to the pressure plate to make the pressure plate move along the axial direction of the active housing, the driven plate moves with the pressure plate and the driven hub, releasing the friction between the active plate and the driven plate, thereby making the driven hub and the pressure plate no longer rotate with the active housing, thereby realizing separation; since the projected outer contour of the first matching portion is located within the projected outer contour of the second matching portion, the active plate that is in contact and friction with the pressure plate does not need to be reduced in design to avoid the first matching portion, so that it can be designed to the same specifications as other active plates, ensuring the normal unit surface pressure size and normal wear of the active plate during transmission, and solving the failure and ablation problems of the active plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of various elements are drawn only as examples in the drawings and are not necessarily drawn to true scale.

[0026] Figure 1 This is a schematic diagram of the overall structure of the clutch in the embodiment of the present application;

[0027] Figure 2 for Figure 1 A cross-sectional view of the overall structure of the clutch in the embodiment;

[0028] Figure 3 for Figure 2 An enlarged cross-sectional view of the active plate, driven plate, active housing, pressure plate, and driven hub in the embodiment;

[0029] Figure 4 for Figure 1 An exploded view of the overall structure of the clutch in the embodiment;

[0030] Figure 5 for Figure 4 Schematic diagram of the overall structure of the pressure plate in the embodiment;

[0031] Figure 6 for Figure 4 A schematic diagram of a driven hub from one perspective in an embodiment;

[0032] Figure 7 for Figure 4 Another perspective schematic diagram of the driven hub in the embodiment;

[0033] Figure 8 for Figure 4 Exploded view of the structure of the active component in the embodiment.

[0034] Description of the accompanying drawings:

[0035] 110. Active housing; 111. Main body; 112. Annular portion; 120. Active plate; 130. Active gear; 140. Fixed plate; 210. Pressure plate; 211. First mating portion; 212. First pressing portion; 213. Fixed column; 220. Driven hub; 221. Second mating portion; 222. Second pressing portion; 223. Avoidance through hole; 224. Positioning groove; 230. Resetting member; 240. Driven plate; 250. Fixed seat; 251. Fixing bolt. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0037] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] One embodiment provides a clutch that can be used in a drive device to transmit or cut off power, and the drive device can be used in a motorcycle. Figures 1 to 4 The clutch includes an active component and a passive component. The active component is connected to the engine through transmission, for example, by coupling with the engine's output shaft to receive the power output by the engine; the passive component is used to receive the power transmitted by the active component and output the power to the corresponding device, such as the wheels, through the drive shaft. Of course, the passive component can also stop coupling with the active component to stop providing power to the corresponding device, thus achieving clutch. Specifically:

[0039] Combine Figures 2 to 4The active component includes an active housing 110 and multiple active plates 120. The active housing 110 has a main body 111 and an annular portion 112 provided on the main body 111. The active plates 120 are arranged in an annular shape and are spaced apart on the inner side of the annular portion 112. The active plates 120 can rotate with the active housing 110, and the active plates 120 can also move along the axial direction of the active housing 110.

[0040] like Figure 2 and Figure 3 As shown, the active housing 110 includes a main body 111 and an annular portion 112. The annular portion 112 is located on one side of the main body 111 and is arranged in an annular shape. The active plate 120 is located on the inner side of the annular portion 112. The active plate 120 cannot rotate in the circumferential direction of the active housing 110, but the active plate 120 can move relative to the active housing 110 along the axial direction of the active housing 110 to cooperate with the driven component to transmit or separate.

[0041] The main body 111 is provided with a hole that mates with the engine's output shaft to achieve support and transmission. The annular portion 112 may include multiple plate structures spaced along the circumferential edge of the main body 111. Adjacent plate structures form gaps to facilitate the installation of the active plate 120, allowing the active plate 120 to rotate with the active housing 110 and also move axially along the active housing 110. This will not be further described.

[0042] Combine Figures 2 to 4 The driven assembly includes a pressure plate 210, a driven hub 220, a reset member 230 and a driven plate 240. The pressure plate 210, the driven hub 220 and the active housing 110 are coaxially arranged. There are multiple driven plates 240 and they are arranged in a ring shape. The driven plates 240 and the active plates 120 are arranged alternately. When projected along the axial direction of the active housing 110, the projection outline of the active plate 120 at least partially overlaps with the projection outline of the driven plate 240. The pressure plate 210 can move along the axial direction of the active housing 110 to maintain or release the friction between the active plate 120 and the driven plate 240. The reset member 230 is used to reset the pressure plate 210.

[0043] like Figure 3 As shown, the active plates 120 and the driven plates 240 are arranged alternately, that is, one driven plate 240 is spaced between adjacent active plates 120, and one active plate 120 is spaced between adjacent driven plates 240. The pressure plate 210 can move along the axial direction of the active housing 110 to maintain or release the friction between the active plates 120 and the driven plates 240. For example Figure 3From the perspective shown, if the pressure plate 210 moves toward the right, the friction force between the active plate 120 and the driven plate 240 can be maintained, thereby realizing the transmission between the active component and the driven component. If the pressure plate 210 moves toward the left, the friction force between the active plate 120 and the driven plate 240 is released, and the driven component no longer rotates with the active component.

[0044] Combine Figure 3 The pressure plate 210 is provided with a first matching portion 211, and the driven hub 220 is provided with a second matching portion 221. The second matching portion 221 and the first matching portion 211 are both located on the inner side of the annular portion 112. When projected along the axial direction of the active housing 110, the projected outer contour of the first matching portion 211 is located within the projected outer contour of the second matching portion 221; a part of the driven plate 240 is provided on the first matching portion 211 and can rotate with the pressure plate 210, and another part of the driven plate 240 is provided on the second matching portion 221 and can rotate with the driven hub 220, and all the driven plates 240 can move along the axial direction of the active housing 110.

[0045] like Figure 3 As shown, when projected along the axial direction of the active housing 110, the outer edge of the first matching portion 211 roughly falls within the outer edge of the second matching portion 221. At the same time, the first matching portion 211 and the second matching portion 221 are roughly staggered along the axial direction of the active housing 110, so that the driven plate 240 is respectively set on the first matching portion 211 and the second matching portion 221.

[0046] like Figure 3 In the viewing angle area shown, the upper side of the first matching portion 211 is lower than the upper side of the second matching portion 221, and the inner edge of the ring of the active plate 120 (ie, Figure 3 The lower edge of the leftmost active plate 120 in the viewing area does not need to avoid the first mating portion 211, so the active plate 120 can be designed to have the same specifications as other active plates 120, and the contact friction area between the active plate 120 and the pressure plate 210 will not be significantly different from the contact friction area between other active plates 120 and the driven plates 240, thereby ensuring that the active plate 120 will not be excessively worn compared to other active plates 120, resulting in failure or even ablation.

[0047] The clutch can be used for a driving device. The active housing 110 can rotate and drive the active plate 120 to rotate. The driven plate 240 and the active plate 120 are alternately arranged. The driven plate 240 and the active plate 120 are at least partially in contact. Friction is generated between the active plate 120 and the driven plate 240 and power is transmitted to the driven plate 240, so that the driven plate 240 drives the pressure plate 210 and the driven hub 220 to rotate, thereby realizing power transmission. When an external force is applied to the pressure plate 210 to move the pressure plate 210 along the axial direction of the active housing 110, the driven plate 240 moves with the pressure plate 210 and the driven hub 220. The friction between the active plate 120 and the driven plate 240 is released, so that the driven hub 220 and the pressure plate 210 no longer rotate with the active housing 110, and separation is achieved; since the projected outer contour of the first mating portion 211 is located within the projected outer contour of the second mating portion 221, the active plate 120 that is in contact and friction with the pressure plate 210 does not need to be reduced in design to avoid the first mating portion 211, and can be designed to the same specifications as other active plates 120, ensuring the normal unit surface pressure and normal wear of the active plate 120 during transmission, and avoiding failure and ablation problems caused thereby.

[0048] In one embodiment, please refer to Figure 3 and Figure 4 The pressure plate 210 is also provided with a first pressing portion 212, and the driven hub 220 is also provided with a second pressing portion 222. The second pressing portion 222 and the first pressing portion 212 are both located on the inner side of the annular portion 112, and the first pressing portion 212 is located between the second pressing portion 222 and the main body 111; the active plate 120 closest to the main body 111 abuts against the first pressing portion 212, and the active plate 120 farthest from the main body 111 abuts against the second pressing portion 222.

[0049] like Figure 5 As shown, the first pressing portion 212 of the pressure plate 210 is generally an edge structure arranged around the outer periphery of the pressure plate 210 to press, contact and rub against the annular active plate 120. Figure 6 As shown, the second pressing portion 222 of the driven hub 220 is generally an edge structure provided around the outer circumference of the driven hub 220 to press, contact and rub against the annular active plate 120 .

[0050] like Figure 2 and Figure 3 As shown, the first pressing portion 212 and the second pressing portion 222 are both located on the inner side of the annular portion 112 , and the first pressing portion 212 is located between the active portion and the second pressing portion 222 to make the structure more compact.

[0051] In one embodiment, please refer to Figure 5The first matching portion 211 includes a first key tooth, and the first key teeth are provided in plurality and are arranged circumferentially around the pressure plate 210. The tooth grooves between adjacent first key teeth extend axially along the active housing 110. A first key groove is provided on the edge of a portion of the driven plate 240. The first key groove is provided in plurality and matches the first key teeth.

[0052] Please refer to Figure 6 The second mating portion 221 includes a second key tooth, and the second key teeth are provided in plurality and are arranged circumferentially around the driven hub 220. The tooth grooves between adjacent second key teeth extend axially along the active housing 110. Another part of the edge of the driven plate 240 is provided with a second key groove, and the second key grooves are provided in plurality and match the second key teeth.

[0053] like Figure 5 As shown, the pressure plate 210 is provided with first key teeth, and the first key teeth are arranged at intervals along the circumference of the pressure plate 210, and the tooth grooves between adjacent first key teeth extend along the axial direction of the active housing 110; Figure 4 As shown, the first key groove of a portion of the driven plate 240 roughly matches the first key tooth, so that the driven plate 240 is sleeved on the pressure plate 210, and the driven plate 240 can move along the extension direction of the tooth groove.

[0054] like Figure 6 As shown, the driven hub 220 is provided with second key teeth, and the second key teeth are arranged at intervals along the circumference of the driven hub 220, and the tooth grooves between adjacent second key teeth extend along the axial direction of the active housing 110; Figure 4 As shown, the second keyway of another part of the driven plate 240 roughly matches the second key tooth, so that the driven plate 240 is sleeved on the driven hub 220, and the driven plate 240 can move along the extension direction of the tooth groove.

[0055] In this arrangement, the teeth act as both a limiter for the key and a tooth groove to enable movement of the driven plate 240. The driven plate 240 on the pressure plate 210 can rotate with the pressure plate 210 and can move axially along the driving housing 110. Simultaneously, the driven plate 240 on the driven hub 220 can rotate with the driven hub 220 and can move axially along the driving housing 110.

[0056] Optionally, the driven piece 240 on the pressure plate 210 is the same as the driven piece 240 on the driven hub 220 , that is, the specifications of the first key teeth and the second key teeth are the same, and the specifications of the first key groove and the second key groove are the same.

[0057] In one embodiment, please refer to Figure 4 and Figure 8All active plates 120 have the same inner ring diameter. With this arrangement, all active plates 120, whether in contact with the pressure plate 210 or the driven hub 220, have the same specifications and are subject to roughly equivalent friction during transmission. This prevents individual active plates 120 from prematurely wearing out, failing, or even ablating.

[0058] In one embodiment, please refer to Figure 3 , the diameter of the top circle of the first key tooth is smaller than the diameter of the root circle of the second key tooth.

[0059] like Figure 3 As shown, when projected in the axial direction of the active housing 110, the projected outer contour of the first mating portion 211 is located within the projected outer contour of the second mating portion 221. Therefore, the diameter of the top circle of the first key tooth is smaller than the diameter of the root circle of the second key tooth, so as to assemble the driven plate 240 on the pressure plate 210.

[0060] like Figure 3 As shown, the tooth top circle diameter of the driven piece 240 on the pressure plate 210 is smaller than the tooth top circle diameter of the driven piece 240 on the driven hub 220. Figure 3 and Figure 4 As shown, the outer diameter of the driven plate 240 on the pressure plate 210 is the same as the outer diameter of the driven plate 240 on the driven hub 220. This arrangement can roughly ensure that the friction area between the driving plate 120 and the driven plate 240 is basically the same, ensuring balanced friction force and avoiding excessive wear of individual driving plates 120 or driven plates 240.

[0061] In one embodiment, please refer to Figure 4 、 Figure 5 and Figure 7 The pressure plate 210 is also provided with a fixing column 213, which has at least two fixing columns 213 and is arranged at intervals along the circumference of the pressure plate 210; the driven hub 220 is provided with an avoidance through-hole 223, which has at least two avoidance through-holes 223 and corresponds one-to-one to the fixing columns 213; the clutch also includes a fixing seat 250, which is located on the side of the driven hub 220 away from the pressure plate 210; the fixing column 213 is passed through the avoidance through-hole 223 and is fixed to the fixing seat 250.

[0062] like Figure 5 As shown, the pressure plate 210 is provided with three fixing posts 213; Figure 7 As shown, the driven hub 220 is provided with three avoidance through holes 223 so that the fixing columns 213 can pass through them one by one. Figure 3 and Figure 4As shown, the fixing column 213 of the pressure plate 210 extends toward one side of the fixing seat 250 . During assembly, the end of the fixing column 213 passes through the avoidance through hole 223 and is fixed to the fixing seat 250 .

[0063] Optionally, the fixing column 213 is provided with a screw hole, and the fixing seat 250 is equipped with a fixing bolt 251. There are three fixing bolts 251 and they correspond one to one with the fixing column 213. The fixing bolt 251 can be passed through the fixing seat 250 and fixed to the fixing column 213 through the screw hole, which will not be repeated.

[0064] In one embodiment, please combine Figure 2 、 Figure 4 and Figure 7 The driven hub 220 is provided with a positioning groove 224 , the notch of the positioning groove 224 faces the fixing seat 250 , one end of the reset member 230 abuts against the bottom wall of the positioning groove 224 , and the other end of the reset member 230 abuts against the fixing seat 250 .

[0065] like Figure 2 As shown, the positioning groove 224 is used to position and abut one end of the reset member 230. When the pressure plate 210 is moved away from the fixing seat 250 by an external force, the friction between the active plate 120 and the driven plate 240 is released, and the reset member 230 is also pulled. When the external force is removed, the pressure plate 210 is reset under the reset force of the reset member 230.

[0066] In one embodiment, please refer to Figure 2 、 Figure 4 and Figure 7 There are at least two positioning grooves 224 and they are spaced apart along the circumference of the driven hub 220 , and there are at least two reset members 230 and they correspond one to one with the positioning grooves 224 .

[0067] like Figure 4 As shown, there are three reset members 230; Figure 7 As shown, there are three positioning slots 224, corresponding to the reset members 230 one by one. Figure 7 As shown, the positioning grooves 224 are evenly spaced along the circumference of the driven hub 220 so that the restoring forces applied to different areas of the pressure plate 210 are roughly equivalent.

[0068] Optionally, the reset member 230 is a spring.

[0069] like Figure 3 As shown, there are five active plates 120 and four driven plates 240 , wherein one driven plate 240 is provided on the pressure plate 210 and the other three driven plates 240 are provided on the driven hub 220 .

[0070] In one embodiment, please refer to Figure 3 、 Figure 4 and Figure 8 The active component also includes a driving gear 130, which is fixed to the active housing 110 and located on a side of the active housing 110 away from the driven component. The driving gear 130 is coaxially arranged with the active housing 110 and can drive the active housing 110 to rotate.

[0071] The driving gear 130 is fixed to the driving housing 110 . The driving gear 130 rotates and transmits power to the driving housing 110 , and further transmits power to the driven hub 220 through the cooperation between the driving plate 120 and the driven plate 240 .

[0072] Optionally, the active component further includes a fixing plate 140 , which is provided with bolts. The bolts pass through the fixing plate 140 and the active gear 130 and are screwed and fixed to the active housing 110 , thereby fixing the active gear 130 to the active housing 110 .

[0073] This embodiment also provides a driving device, comprising the clutch as described in any of the above embodiments.

[0074] In addition, this embodiment also provides a motorcycle, comprising the driving device as described in the above embodiment.

[0075] The driving device and the motorcycle both adopt the aforementioned clutch. The active housing 110 can rotate and drive the active plate 120 to rotate. The driven plate 240 and the active plate 120 are alternately arranged. The driven plate 240 and the active plate 120 are at least partially in contact. Friction is generated between the active plate 120 and the driven plate 240 and power is transmitted to the driven plate 240, so that the driven plate 240 drives the pressure plate 210 and the driven hub 220 to rotate, thereby realizing power transmission. When an external force is applied to the pressure plate 210 to make the pressure plate 210 move along the axial direction of the active housing 110, the driven plate 240 moves along with the pressure plate 210 and the driven hub 220. The first engaging portion 211 is located within the projected outer contour of the second engaging portion 221, and the active plate 120 in contact with the pressure plate 210 does not need to be reduced in size to avoid the first engaging portion 211, so that it can be designed to have the same specifications as other active plates 120, thereby ensuring the normal unit surface pressure and normal wear of the active plate 120 during transmission, and solving the failure and ablation problems of the active plate 120.

[0076] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore should not be understood as limiting the present invention.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0078] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0079] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0080] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0081] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A clutch, characterized in that: include: An active component, the active component comprising an active housing and a plurality of active plates, the active housing having a main body and an annular portion disposed on the main body, the active plates being annularly arranged and spaced apart on the inner side of the annular portion, the active plates being capable of rotating with the active housing and also capable of moving axially along the active housing; A driven assembly, the driven assembly comprising a pressure plate, a driven hub, a reset member and a driven plate, the pressure plate, the driven hub and the active housing being coaxially arranged, a plurality of driven plates being provided and arranged in an annular shape, the driven plates and the active plates being alternately arranged, the projected contour of the active plate and the projected contour of the driven plate at least partially overlapping when projected along the axial direction of the active housing, the pressure plate being able to move along the axial direction of the active housing to maintain or release the friction between the active plate and the driven plate, and the reset member being used to reset the pressure plate; The pressure plate is provided with a first matching portion, and the driven hub is provided with a second matching portion. The second matching portion and the first matching portion are both located on the inner side of the annular portion. When projected along the axial direction of the active housing, the projected outer contour of the first matching portion is located within the projected outer contour of the second matching portion. A part of the driven plates is provided on the first matching portion and can rotate with the pressure plate, and another part of the driven plates is provided on the second matching portion and can rotate with the driven hub, and all of the driven plates can move along the axial direction of the active housing.

2. The clutch according to claim 1, characterized in that: The pressure plate is also provided with a first pressing portion, and the driven hub is also provided with a second pressing portion. The second pressing portion and the first pressing portion are both located on the inner side of the annular portion, and the first pressing portion is located between the second pressing portion and the main body; the active plate closest to the main body abuts against the first pressing portion, and the active plate farthest from the main body abuts against the second pressing portion.

3. The clutch according to claim 2, characterized in that: The first mating portion includes a first key tooth, a plurality of the first key teeth are provided and are arranged around the circumference of the pressure plate, the tooth grooves between adjacent first key teeth extend along the axial direction of the active housing, and a first key groove is provided on the edge of a portion of the driven plate, a plurality of the first key grooves are provided and match the first key teeth; The second mating portion includes a second key tooth, which is provided in plurality and arranged circumferentially around the driven hub, and the tooth grooves between adjacent second key teeth extend along the axial direction of the active housing, and the edge of another part of the driven plate is provided with a second key groove, which is provided in plurality and matches the second key teeth.

4. The clutch according to claim 3, characterized in that: The inner ring diameters of all the active plates are the same; or / and the diameter of the tooth top circle of the first key tooth is smaller than the diameter of the tooth root circle of the second key tooth.

5. The clutch according to any one of claims 1 to 4, characterized in that: The pressure plate is also provided with a fixing column, which is provided with at least two fixing columns and is arranged at intervals along the circumference of the pressure plate; the driven hub is provided with an avoidance through-hole, which is provided with at least two avoidance through-holes and corresponds one-to-one to the fixing columns; the clutch also includes a fixing seat, which is located on the side of the driven hub away from the pressure plate; the fixing column is passed through the avoidance through-hole and is fixed to the fixing seat.

6. The clutch according to claim 5, characterized in that: The driven hub is provided with a positioning groove, the notch of the positioning groove faces the fixing seat, one end of the reset member abuts against the bottom wall of the positioning groove, and the other end of the reset member abuts against the fixing seat.

7. The clutch according to claim 6, characterized in that: There are at least two positioning grooves and they are spaced apart along the circumference of the driven hub. There are at least two reset members and they correspond to the positioning grooves one by one.

8. The clutch according to claim 5, characterized in that: The driving assembly further includes a driving gear, which is fixed to the driving housing and located on a side of the driving housing away from the driven assembly. The driving gear is coaxially arranged with the driving housing and can drive the driving housing to rotate.

9. A driving device, characterized in that: Comprising a clutch as described in any one of claims 1-8.

10. A motorcycle, characterized in that: Comprising the driving device as claimed in claim 9.

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