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, the driving component comprising an active housing and an active plate, the active plate being capable of rotating with the active housing, and the active plate being capable of also moving axially along the active housing, the driven component comprising a pressure plate, a driven hub, a reset member and a driven plate; at least one driven plate is provided on the pressure plate and is capable of rotating with the pressure plate, and the driven plate is also capable of moving relative to the pressure plate along the axial direction of the active housing; at least one driven plate is provided on the driven hub and is capable of rotating with the driven hub, and the driven plate is also capable of moving relative to the driven hub along the axial direction of the active housing; the pressure plate is capable of moving axially along the active housing to maintain or release the friction between the driven plate and the active plate, and the reset member is used to reset the pressure plate; the inner ring of the active plate is a circular ring, and the inner ring diameter of the active plate abutting the pressure plate is not larger than the inner ring diameter of other active plates, thereby ensuring that the active plate will not wear out or ablate prematurely.

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 provided with an active plate, and the driven hub and pressure plate are provided with a driven plate. When the active housing rotates, the active plate and the driven plate contact and rub against each other, thereby driving the driven hub and the pressure plate to rotate, thereby achieving transmission; and when external force is applied to the pressure plate or the driven hub, the conflict between the driven plate and the active plate is weakened, releasing the friction so that the driven hub and the pressure plate no longer rotate with the active housing, thereby achieving separation. At the same time, the clutch also has an auxiliary function. When the vehicle accelerates sharply, the active plate on the pressure plate side causes a speed difference between the pressure plate and the driven hub, and with the help of the spiral surface between the driven hub and the pressure plate, the two are pressed together and obtain additional contact pressure.

[0003] However, due to the greater friction on the pressure plate side, the active plate wears faster than the other active plates. The root diameter of the pressure plate splines is typically designed to be larger than the tip diameter of the driven hub splines, resulting in a larger inner diameter of the active plate in contact with the pressure plate. Consequently, the active plate on the pressure plate side is typically smaller than the other active plates, resulting in greater surface pressure during friction. Excessive wear not only degrades clutch performance but can also lead to wear and erosion of the active plate, compromising driving safety. Summary of the Invention

[0004] Based on this, it is necessary to provide a clutch, a drive device and a motorcycle to address the problem that the active plate on the side of the traditional clutch close to the pressure plate wears more seriously.

[0005] A clutch comprising:

[0006] An active component, comprising an active housing and active plates, wherein the active plates are arranged in an annular shape and are provided with at least two, the active plates being capable of rotating with the active housing and also capable of moving axially along the active housing;

[0007] 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; at least one driven plate being arranged on the pressure plate and being capable of rotating with the pressure plate, and the driven plate being capable of moving relative to the pressure plate along the axial direction of the active housing; at least one driven plate being arranged on the driven hub and being capable of rotating with the driven hub, and the driven plate being capable of moving relative to the driven hub along the axial direction of the active housing; the driven plates and the active plates being alternately arranged, and when projected along the thickness direction of the active plates, the projected contour of the driven plates at least partially overlaps with the projected contour of the active plates;

[0008] The pressure plate can move along the axial direction of the active housing to maintain or release the friction between the driven plate and the active plate, and the reset member is used to reset the pressure plate; the inner ring of the active plate is a circular ring, and the inner ring diameter of the active plate abutting the pressure plate is not larger than the inner ring diameter of the other active plates.

[0009] In the above-mentioned clutch, when the active housing rotates, the active plate and the driven plate contact and rub, thereby driving the pressure plate and the driven hub to rotate, thereby realizing transmission; when external force is applied to the pressure plate to make it move along the axial direction of the active housing, the friction between the driven plate and the active plate is released, thereby causing the driven hub to no longer rotate with the active housing, thereby realizing clutch. When the external force is removed, the reset member resets the pressure plate; since the inner ring diameter of the active plate (i.e. the active plate on the pressure plate side) abutting the pressure plate is smaller than or equal to the inner ring diameter of other active plates, the surface pressure of the active plate, the driven plate and the pressure plate will be roughly the same or smaller than that of other active plates, thereby ensuring that the active plate will not wear or burn out prematurely compared to other active plates, thereby ensuring the normal performance of the clutch and ensuring driving safety.

[0010] In one embodiment, the active housing includes a main body and an annular portion, the annular portion is arranged around the outer circumference of the main body and is located on the side of the main body facing the pressure plate, the active plate is arranged on the inner side of the ring of the annular portion, and the active plate can move relative to the annular portion along the axial direction of the main body.

[0011] In one embodiment, the pressure plate is provided with a first toothed plate, which is arranged around the circumference of the pressure plate and located on the inner side of the annular portion, and at least one driven plate is arranged on the pressure plate through the first toothed plate; the driven hub is provided with a second toothed plate, which is arranged around the circumference of the driven hub and located on the inner side of the annular portion, and at least one driven plate is arranged on the driven hub through the second toothed plate; in the axial direction along the main body, the first toothed plate is located between the main body and the second toothed plate; the diameter of the tooth top circle of the first toothed plate is smaller than the diameter of the tooth root circle of the second toothed plate.

[0012] In one embodiment, the inner ring diameter of the active plate abutting against the pressure plate is smaller than the inner ring diameters of the other active plates.

[0013] In one embodiment, the pressure plate is further provided with a fixing post, at least two of which are provided and extend toward a side away from the main body; the driven hub is provided with an avoidance hole, which passes through the driven hub, at least two of which are provided and correspond one-to-one to the fixing post; the clutch further includes a fixing seat, which is located on a side of the driven hub away from the pressure plate; the fixing post passes through the avoidance hole and is fixed to the fixing seat;

[0014] The driven hub is also provided with a positioning groove, the notch of the positioning groove is opened toward one side of the fixed seat, at least two positioning grooves are provided and are arranged at intervals along the circumference of the driven hub, at least two reset members are provided and correspond one to one to the positioning grooves; 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 fixed seat.

[0015] In one embodiment, the inner ring diameters of all the active plates are equal; the reset member is a reset spring, and the clutch also includes a washer, which is sleeved on the first gear plate. The washer is located at one end of the first gear plate facing the main body, and the direction in which the washer applies force to the pressure plate is opposite to the direction in which the reset spring applies force to the pressure plate.

[0016] In one embodiment, the pressure plate is further provided with a first abutting portion, and the driven hub is further provided with a second abutting portion, and all the active plates are located between the first abutting portion and the second abutting portion; the first abutting portion abuts against the active plate on the side closest to the pressure plate, and the second abutting portion abuts against the active plate on the side farthest from the pressure plate;

[0017] The washer is a butterfly washer, and the butterfly washer is located between the first abutting portion and the driven piece closest to the first abutting portion.

[0018] In one embodiment, the driving component further includes a driving gear fixed to the driving housing. The driving gear is located on a side of the driving housing away from the driven component. The driving gear can rotate and drive the driving housing to rotate.

[0019] A driving device comprises a clutch as described in any of the above technical solutions.

[0020] A motorcycle comprises the driving device as described in the above technical solution.

[0021] The above-mentioned drive device and motorcycle adopt the aforementioned clutch. When the active housing rotates, the active plate and the driven plate contact and rub against each other, thereby driving the pressure plate and the driven hub to rotate, thereby realizing transmission; when external force is applied to the pressure plate to make it move along the axial direction of the active housing, the friction between the driven plate and the active plate is released, thereby causing the driven hub to no longer rotate with the active housing, thereby realizing clutch. When the external force is removed, the reset member resets the pressure plate; since the inner ring diameter of the active plate abutting the pressure plate (i.e., the active plate on the pressure plate side) is less than or equal to the inner ring diameter of other active plates, the surface pressure of the active plate, the driven plate and the pressure plate will be roughly the same or smaller than that of other active plates, thereby ensuring that the active plate will not wear or burn out prematurely compared to other active plates, thereby ensuring the normal performance of the clutch and ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the clutch in the embodiment of the present application.

[0023] Figure 2 This is an exploded view of the overall structure of the clutch in the embodiment of the present application.

[0024] Figure 3 Schematic diagram of the overall structure of the pressure plate in the embodiment of the present application.

[0025] Figure 4 This is a schematic diagram of a driven hub from one perspective in an embodiment of the present application.

[0026] Figure 5 for Figure 4 Schematic diagram of the driven hub from another perspective in the embodiment.

[0027] Figure 6 This is a cross-sectional view of the overall structure of the clutch in one embodiment of the present application.

[0028] Figure 7 for Figure 6 A partially enlarged structural diagram of the clutch in the embodiment.

[0029] Figure 8 for Figure 6 Schematic diagram of the structure of multiple active sheets in an embodiment.

[0030] Figure 9 This is a cross-sectional view of the overall structure of a clutch in another embodiment of the present application.

[0031] Figure 10 for Figure 9 A partially enlarged structural diagram of the clutch in the embodiment.

[0032] Figure 11 for Figure 9 Exploded view of the structure of the active component and gasket in the embodiment.

[0033] Description of the accompanying drawings:

[0034] 110. Active housing; 111. Main body; 112. Annular portion; 120. Active plate; 130. Active gear; 140. Fixed plate; 210. Pressure plate; 211. First gear plate; 212. First abutting portion; 213. Fixed column; 220. Driven hub; 221. Second gear plate; 222. Second abutting portion; 223. Avoidance hole; 224. Positioning groove; 230. Resetting member; 240. Driven plate; 250. Fixed seat; 251. Fixing bolt; 300. Washer. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this 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 intermediate medium. Furthermore, when a first feature is described as being "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 described as being "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.

[0040] It should be noted that if 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. If 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. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0041] Please refer to Figure 1 and Figure 2 One embodiment of the present application provides a clutch, comprising a driving component and a driven component.

[0042] like Figure 2 As shown, the active component includes an active housing 110 and active plates 120 . The active plates 120 are arranged in an annular shape and are provided with at least two. The active plates 120 can rotate with the active housing 110 and can also move along the axial direction of the active housing 110 .

[0043] like Figure 2As shown, the driven assembly includes a pressure plate 210, a driven hub 220, a reset member 230 and a driven plate 240, and the pressure plate 210, the driven hub 220 and the active housing 110 are coaxially arranged; at least one driven plate 240 is arranged on the pressure plate 210 and can rotate with the pressure plate 210, and the driven plate 240 can also move relative to the pressure plate 210 along the axial direction of the active housing 110; at least one driven plate 240 is arranged on the driven hub 220 and can rotate with the driven hub 220, and the driven plate 240 can also move relative to the driven hub 220 along the axial direction of the active housing 110; the driven plates 240 and the active plates 120 are alternately arranged, and when projected along the thickness direction of the active plate 120, the projection contour of the driven plate 240 at least partially overlaps with the projection contour of the active plate 120.

[0044] The pressure plate 210 can move along the axial direction of the active housing 110 to maintain or release the friction between the driven plate 240 and the active plate 120. The reset member 230 is used to reset the pressure plate 210. Figure 8 and Figure 11 As shown, the inner ring of the active plate 120 is a circular ring, and the diameter of the inner ring of the active plate 120 abutting against the pressure plate 210 is not larger than the inner ring diameters of other active plates 120 .

[0045] Figure 8 In the illustrated embodiment, the inner ring diameter of the active plate 120 in contact with the pressure plate 210 is smaller than the inner ring diameters of the other active plates 120 . Figure 11 In the illustrated embodiment, the inner ring diameter of the active plate 120 in contact with the pressure plate 210 is equal to the inner ring diameters of the other active plates 120 .

[0046] The driven plates 240 and the driving plates 120 are arranged alternately, that is, there is a driving plate 120 between two adjacent driven plates 240, and there is a driven plate 240 between two adjacent driving plates 120. At the same time, because the driving plates 120 and the driven plates 240 partially overlap when projected along the axial direction of the active housing 110, under normal conditions, the pressure plate 210 presses against the driven plates 240 so that the driven plates 240 and the active plates 120 overlap and contact each other. If the active plates 120 rotate, the friction force generated by the contact will drive the driven plates 240 to rotate, and then the driven plates 240 will drive the pressure plate 210 and the driven hub 220 to rotate, thus achieving transmission. When an external force is applied to the pressure plate 210, the pressure plate 210 releases the pressing force, so that the active plates 120 and the driven plates 240 no longer press against each other, thereby eliminating the friction force and causing the pressure plate 210 and the driven hub 220 to no longer rotate with the active housing 110, thus achieving clutch.

[0047] The clutch can be applied to a driving device of a vehicle, such as a driving device of a fuel vehicle, a gas vehicle or an electric vehicle. When the active housing 110 rotates, the active plate 120 contacts and rubs against the driven plate 240, thereby driving the pressure plate 210 and the driven hub 220 to rotate, thereby realizing transmission; when an external force is applied to the pressure plate 210 to make it move axially along the active housing 110, the friction between the driven plate 240 and the active plate 120 is released, thereby causing the driven hub 220 to no longer rotate with the active housing 110, thereby realizing clutch. When the external force is removed, the reset member 230 resets the pressure plate 210; since the inner ring diameter of the active plate 120 abutting the pressure plate 210 (i.e., the active plate 120 on the pressure plate 210 side) is smaller than or equal to the inner ring diameter of the other active plates 120, the surface pressure between the active plate 120 and the driven plate 240 and the pressure plate 210 is roughly the same or smaller than that of the other active plates 120, thereby ensuring that the active plate 120 will not wear or burn out prematurely compared to the other active plates 120, ensuring the normal performance of the clutch and ensuring driving safety.

[0048] In one embodiment, please refer to Figure 2 、 Figure 7 、 Figure 10 and Figure 11 The active housing 110 includes a main body 111 and an annular portion 112. The annular portion 112 is arranged around the outer periphery of the main body 111 and is located on the side of the main body 111 facing the pressure plate 210. The active plate 120 is arranged on the inner side of the ring 112. The active plate 120 can move relative to the annular portion 112 along the axial direction of the main body 111.

[0049] The main body 111 is used to connect to the output part of the engine to receive power and transmit it to the driven hub 220. The annular portion 112 is used to mount the active plate 120 so that the active plate 120 can rotate with the active housing 110 and move axially along the active housing 110.

[0050] like Figure 11 As shown, an annular portion 112 is provided on the outer periphery of the main body 111, and the annular portion 112 is provided with a plurality of notches so that the active plate 120 can be fitted into the annular portion 112 through the notches. When the active housing 110 rotates, the notches limit the circumferential freedom of the active plate 120, thereby causing the annular portion 112 to drive the active plate 120 to rotate synchronously with the active housing 110; and when the active plate 120 moves along the axial direction of the active housing 110 driven by the driven plate 240, since the notches cannot limit the axial freedom of the active plate 120, the active plate 120 can move along the axial direction of the active housing 110 to rub or not rub against the driven plate 240.

[0051] In one embodiment, please combine Figure 3 、 Figure 7 and Figure 10The pressure plate 210 is provided with a first toothed disc 211, which is arranged around the circumference of the pressure plate 210 and is located inside the annular portion 112. At least one driven piece 240 is arranged on the pressure plate 210 through the first toothed disc 211. Figure 4 、 Figure 7 and Figure 10 The driven hub 220 is provided with a second toothed disc 221, which is arranged around the circumference of the driven hub 220 and located inside the annular portion 112. At least one driven piece 240 is arranged on the driven hub 220 through the second toothed disc 221. Figure 7 and Figure 10 In the axial direction of the main body 111 , the first toothed disc 211 is located between the main body 111 and the second toothed disc 221 ; the diameter of the tooth top circle of the first toothed disc 211 is smaller than the diameter of the tooth root circle of the second toothed disc 221 .

[0052] like Figure 7 and Figure 10 As shown, the diameter of the top circle of the first gear disc 211 is smaller than the diameter of the root circle of the second gear disc 221. This arrangement allows the active plate 120 on the pressure plate 210 side to avoid the first gear disc 211 and be reduced in size, so that the active plate 120 on the pressure plate 210 side can be designed to be the same size as other active plates 120, or the inner ring diameter of the active plate 120 is smaller than the inner ring diameter of other active plates 120, thereby making the contact area between the active plate 120 and the pressure plate 210 and the adjacent driven plate 240 larger, reducing the surface pressure of the active plate 120, and ensuring that it will not wear out and fail prematurely.

[0053] In one embodiment, please refer to Figure 7 and Figure 8 The inner ring diameter of the active plate 120 that contacts the pressure plate 210 is smaller than the inner ring diameters of the other active plates 120 .

[0054] like Figure 7 In the embodiment shown, the inner ring diameter of the active plate 120 abutting against the pressure plate 210 is smaller than the inner ring diameters of the other active plates 120, which makes the effective friction area of the active plate 120 larger than that of the other active plates 120, so as to meet the situation that the active plate 120 at this location has higher wear intensity than other active plates 120, thereby ensuring the normal function of the active plate 120.

[0055] Of course, it should be noted that the inner ring diameter of the active plate 120 abutting against the pressure plate 210 is larger than the tooth top circle diameter of the first gear plate 211 , which will not be elaborated any further.

[0056] In one embodiment, please refer to Figure 2 and Figure 3 The pressure plate 210 is further provided with a fixing post 213. The fixing post 213 is provided with at least two and extends toward a side away from the main body 111. Figure 2 and Figure 3 The driven hub 220 is provided with an avoidance hole 223, which is set through the driven hub 220. There are at least two avoidance holes 223 and they correspond to the fixing columns 213 one by one. Figure 2 and Figure 7 The clutch further includes a fixing seat 250 , which is located on a side of the driven hub 220 away from the pressure plate 210 ; the fixing column 213 passes through the avoidance hole 223 and is fixed to the fixing seat 250 .

[0057] The fixing column 213 passes through the avoidance hole 223 and is fixed to the fixing seat 250 to achieve the connection between the pressure plate 210, the driven hub 220 and the fixing seat 250. Figure 3 and Figure 5 As shown, three fixing posts 213 are provided and are evenly spaced along the circumference of the pressure plate 210 , and three avoidance holes 223 are provided and correspond one-to-one to the fixing posts 213 .

[0058] Optionally, the fixing of the fixing column 213 and the fixing seat 250 can be achieved by fixing screws.

[0059] Please refer to Figure 2 and Figure 5 The driven hub 220 is also provided with a positioning groove 224, the notch of the positioning groove 224 is opened toward one side of the fixed seat 250, and there are at least two positioning grooves 224 and they are arranged at intervals along the circumference of the driven hub 220. There are at least two reset members 230 and they correspond one to one with the positioning grooves 224; 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 fixed seat 250.

[0060] like Figure 2 As shown, if a downward force is applied to the pressure plate 210, the pressure plate 210 stretches the reset member 230, and at the same time the friction between the driven plate 240 and the active plate 120 is released, and the pressure plate 210 and the driven hub 220 no longer rotate with the active housing 110; and if the external force of the pressure plate 210 is removed, the reset member 230 drives the pressure plate 210 upward through the reset force, thereby causing the driven plate 240 and the active plate 120 to return to contact and generate friction, thereby restoring the state in which the driven hub 220 and the pressure plate 210 rotate with the active housing 110.

[0061] Combine Figure 2 and Figure 5 As shown, there are three reset members 230 and three positioning slots 224 respectively, and they correspond one to one.

[0062] and Figures 6 to 8 The difference between the embodiments shown is that Figures 9 to 11In the illustrated embodiment, the inner ring diameters of all active plates 120 are equal. The return member 230 is a return spring. The clutch further includes a washer 300, which is sleeved on the first sprocket 211. The washer 300 is located at the end of the first sprocket 211 facing the main body 111. The direction in which the washer 300 applies a force to the pressure plate 210 is opposite to the direction in which the return spring applies the force to the pressure plate 210.

[0063] Figures 9 to 11 In the illustrated embodiment, the specifications of the active plate 120 in contact with the pressure plate 210 are the same as those of the other active plates 120. Because the direction in which the washer 300 applies the force on the pressure plate 210 is opposite to the direction in which the return spring applies the force on the pressure plate 210, the washer 300 weakens the pressure of the pressure plate 210 on the active plate 120 on the pressure plate 210 side, thereby weakening the wear of the pressure plate 210 on the active plate 120 on the pressure plate 210 side, thereby preventing the active plate 120 on the pressure plate 210 side from premature wear and preventing the active plate 120 on the pressure plate 210 side from excessive wear, resulting in failure or ablation.

[0064] In one embodiment, please combine Figure 3 、 Figure 4 and Figure 9 The pressure plate 210 is further provided with a first abutting portion 212, and the driven hub 220 is further provided with a second abutting portion 222. All the active plates 120 are located between the first abutting portion 212 and the second abutting portion 222. The first abutting portion 212 abuts against the active plate 120 on the side closest to the pressure plate 210, and the second abutting portion 222 abuts against the active plate 120 on the side farthest from the pressure plate 210.

[0065] Please refer to Figure 10 The washer 300 is a butterfly washer 300 , and the butterfly washer 300 is located between the first abutting portion 212 and the driven piece 240 closest to the first abutting portion 212 .

[0066] like Figure 10 As shown, the first abutting portion 212 is located between the main body portion 111 and the second abutting portion 222 . Figure 10 In the perspective shown, the right side wall of the first abutting portion 212 abuts against the active plate 120 on the pressure plate 210 side, and the left side wall of the second abutting portion 222 abuts against the active plate 120 farthest from the pressure plate 210 side.

[0067] like Figure 10 As shown, the washer 300 is sleeved on the outer periphery of the first gear plate 211, and the position of the washer 300 matches the position of the active plate 120 on the pressure plate 210 side in the radial direction of the active housing 110, and the washer 300 is located between the first abutment portion 212 and the driven plate 240 on the pressure plate 210 side, so as to reduce the wear of the active plate 120 on the pressure plate 210 side.

[0068] like Figure 6 and Figure 9 As shown, there are five active plates 120 and four driven plates 240, wherein one active plate 120 is arranged on the first gear plate 211 of the pressure plate 210, and the other three driven plates 240 are arranged on the second gear plate 221 of the driven hub 220. The four driven plates 240 are alternately arranged in the four gaps formed by the five active plates 120, which will not be repeated here.

[0069] In one embodiment, please refer to Figure 2 and Figure 11 The active component further includes a driving gear 130 fixed to the active housing 110. The driving gear 130 is located on a side of the active housing 110 away from the driven component. The driving gear 130 can rotate and drive the active housing 110 to rotate.

[0070] like Figure 2 、 Figure 6 and Figure 9 As shown, the driving housing 110 and the driving gear 130 are coaxially arranged, and the driving gear 130 is fixed to the side of the driving housing 110 away from the driven component. The driving gear 130 obtains power from the output part of the engine, and then further transmits it to the driving housing 110 and drives the driving housing 110 to rotate.

[0071] Optionally, the active component further includes a fixing plate 140, which is located on the side of the active gear 130 away from the active housing 110. The fixing plate 140 is configured with screws that penetrate the active gear 130, and the screws fix the fixing plate 140, the active gear 130 and the active housing 110 together.

[0072] An embodiment of the present application further provides a driving device, comprising a clutch as described in any of the above embodiments.

[0073] An embodiment of the present application further provides a motorcycle, comprising the driving device as described in the above embodiment.

[0074] The driving device and motorcycle adopt the above-mentioned clutch. When the active housing 110 rotates, the active plate 120 contacts and rubs against the driven plate 240, thereby driving the pressure plate 210 and the driven hub 220 to rotate, thereby realizing transmission. When an external force is applied to the pressure plate 210 to make it move along the axial direction of the active housing 110, the friction between the driven plate 240 and the active plate 120 is released, thereby causing the driven hub 220 to no longer rotate with the active housing 110, thereby realizing clutch. When the external force is removed, the reset member 23 0 resets the pressure plate 210; since the inner ring diameter of the active plate 120 abutting the pressure plate 210 (i.e., the active plate 120 on the pressure plate 210 side) is smaller than or equal to the inner ring diameter of the other active plates 120, the surface pressure between the active plate 120, the driven plate 240, and the pressure plate 210 is roughly the same as or smaller than that of the other active plates 120, thereby ensuring that the active plate 120 will not wear or burn out earlier than the other active plates 120, thereby ensuring the normal performance of the clutch and ensuring driving safety.

[0075] 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.

[0076] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A clutch, characterized in that: include: An active component, comprising an active housing and active plates, wherein the active plates are arranged in an annular shape and are provided with at least two, 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; at least one driven plate being arranged on the pressure plate and being capable of rotating with the pressure plate, and the driven plate being capable of moving relative to the pressure plate along the axial direction of the active housing; at least one driven plate being arranged on the driven hub and being capable of rotating with the driven hub, and the driven plate being capable of moving relative to the driven hub along the axial direction of the active housing; the driven plates and the active plates being alternately arranged, and when projected along the thickness direction of the active plates, the projected contour of the driven plates at least partially overlaps with the projected contour of the active plates; The pressure plate is capable of moving along the axial direction of the active housing to maintain or release the friction between the driven plate and the active plate, and the reset member is used to reset the pressure plate; the inner ring of the active plate is a circular ring, and the inner ring diameter of the active plate abutting the pressure plate is not larger than the inner ring diameters of the other active plates; The active housing includes a main body and an annular portion, wherein the annular portion is arranged around the outer circumference of the main body and is located on the side of the main body facing the pressure plate, the active plate is arranged on the inner side of the annular portion, and the active plate can move relative to the annular portion along the axial direction of the main body, and the annular portion is provided with a plurality of notches so that the active plate can be fitted into the annular portion through the notches; The pressure plate is provided with a first toothed plate, which is arranged around the circumference of the pressure plate and located on the inner side of the annular portion, and at least one driven plate is arranged on the pressure plate through the first toothed plate; the driven hub is provided with a second toothed plate, which is arranged around the circumference of the driven hub and located on the inner side of the annular portion, and at least one driven plate is arranged on the driven hub through the second toothed plate; in the axial direction along the main body, the first toothed plate is located between the main body and the second toothed plate; the diameter of the tooth top circle of the first toothed plate is smaller than the diameter of the tooth root circle of the second toothed plate.

2. The clutch according to claim 1, characterized in that: The inner ring diameter of the active plate abutting against the pressure plate is larger than the tooth top circle diameter of the first gear plate.

3. The clutch according to claim 1, characterized in that: The inner ring diameter of the active plate abutting against the pressure plate is smaller than the inner ring diameters of the other active plates.

4. The clutch according to claim 1, characterized in that: The pressure plate is further provided with a fixing post, at least two of which are provided and extend toward a side away from the main body; the driven hub is provided with an avoidance hole, which passes through the driven hub, at least two of which are provided and correspond one-to-one to the fixing post; the clutch further includes a fixing seat, which is located on a side of the driven hub away from the pressure plate; the fixing post passes through the avoidance hole and is fixed to the fixing seat; The driven hub is also provided with a positioning groove, the notch of the positioning groove is opened toward one side of the fixed seat, at least two positioning grooves are provided and are arranged at intervals along the circumference of the driven hub, at least two reset members are provided and correspond one to one to the positioning grooves; 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 fixed seat.

5. The clutch according to claim 4, characterized in that: The inner ring diameters of all the active plates are equal; the reset member is a reset spring, and the clutch also includes a washer, which is sleeved on the first gear plate. The washer is located at one end of the first gear plate facing the main body, and the direction in which the washer applies force to the pressure plate is opposite to the direction in which the reset spring applies force to the pressure plate.

6. The clutch according to claim 5, characterized in that: The pressure plate is further provided with a first abutting portion, and the driven hub is further provided with a second abutting portion, and all the active plates are located between the first abutting portion and the second abutting portion; the first abutting portion abuts against the active plate on the side closest to the pressure plate, and the second abutting portion abuts against the active plate on the side farthest from the pressure plate; The washer is a butterfly washer, and the butterfly washer is located between the first abutting portion and the driven piece closest to the first abutting portion.

7. The clutch according to any one of claims 1 to 6, characterized in that: The driving assembly further comprises a driving gear fixed to the driving housing. The driving gear is located on a side of the driving housing away from the driven assembly. The driving gear can rotate and drive the driving housing to rotate.

8. The clutch according to claim 7, characterized in that: The active component further includes a fixing plate, which is located on a side of the active gear away from the active housing. The fixing plate is provided with screws penetrating the active gear, and the screws fix the fixing plate, the active gear and the active housing together.

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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