Motorcycle clutch and engine

Abstract

The utility model belongs to the technical field of clutches, and particularly discloses a motorcycle clutch and an engine. The motorcycle clutch comprises an end cover, a limiting block is arranged on the inner end face of the end cover, and an oil conveying channel is formed in the end cover; the movable part is movably arranged in the limiting block in the axial direction of the movable part, a hydraulic cavity is formed between the movable part and the limiting block, and the output end of the oil conveying channel communicates with the hydraulic cavity; and the elastic piece is arranged between the movable part and the end cover and is used for resetting the movable part. The movable part is arranged on the end cover to form the closed hydraulic cavity, and hydraulic oil is introduced into the hydraulic cavity through the oil conveying channel arranged on the end cover, so that corresponding functional parts can be driven to move, and the friction plate and the clutch plate are combined and separated; therefore, the arrangement space of the hydraulic cylinder in the engine can be omitted, and the size of the engine is smaller. And the overall weight of the engine is lighter, and the miniaturization and lightweight performance of the engine is improved.

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and in particular to a motorcycle clutch and engine. Background Technology

[0002] A motorcycle clutch is a mechanical device located between the engine and the gearbox. Its main function is to transmit or disconnect engine power. When starting, accelerating, shifting gears, or stopping the motorcycle, the clutch allows the rider to control the power transmission from the engine to the gearbox. When the clutch is activated (usually by a lever), it temporarily disconnects the connection between the engine and the gearbox, allowing for smooth gear shifts or preventing the engine from stalling when the motorcycle is stopped. The clutch works by using friction to transmit power. When the clutch is engaged, engine power is transmitted to the gearbox via friction plates, propelling the motorcycle forward. When the clutch is disengaged, the friction plates are no longer in contact, and engine power is no longer transmitted to the gearbox, allowing for gear shifting or stopping without affecting engine operation.

[0003] In existing technologies, motorcycle engine clutches mainly employ two structures: hydraulic and mechanical, to achieve the engagement or disengagement of friction plates and clutch plates. Hydraulic clutches contain a hydraulic cylinder that uses oil pressure to drive the friction plates and clutch plates to engage and disengage. However, placing the hydraulic cylinder within the engine currently occupies considerable space, resulting in a larger overall engine size and weight, which is detrimental to the lightweight and miniaturized requirements of racing or sportbike motorcycles. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a motorcycle clutch and engine to solve the problems of the prior art where the oil cylinder occupies a large space and the engine is too heavy.

[0005] To achieve the above and other related objectives, this utility model provides a motorcycle clutch, comprising:

[0006] Mounting base, wherein friction plates and clutch plates are stacked on the mounting base;

[0007] A clutch mechanism, mounted on a mounting base, is used to press or release the friction plate and clutch plate;

[0008] An end cap is located at the end of the clutch mechanism. A hydraulic drive mechanism is integrated on the end cap to drive the clutch mechanism.

[0009] Optionally, the hydraulic drive mechanism includes a hydraulic chamber and a movable part disposed within the hydraulic chamber. The hydraulic chamber is disposed on the side of the end cover facing the clutch mechanism, and the movable part can reciprocate along the inner wall of the hydraulic chamber.

[0010] Optionally, the end cap is provided with a fluid passage, which connects the outer edge of the end cap and the hydraulic chamber. The fluid passage is used to introduce pressurized fluid into the hydraulic chamber to drive the movable part to move.

[0011] Optionally, a reset member is provided between the movable part and the end cover. The reset member can drive the movable part to move away from the clutch action mechanism. Multiple sealing rings are provided between the movable part and the hydraulic chamber.

[0012] Optionally, it also includes an input shaft that passes through the mounting base. The clutch mechanism includes a first pressure plate and a second pressure plate. The first pressure plate is sleeved on the input shaft and has a pressure cover. The mounting base has a plurality of guide posts for guiding the first pressure plate. The second pressure plate is disposed at the free end of the guide posts. The second pressure plate can be driven close to the first pressure plate by the hydraulic drive mechanism. A clutch spring is provided between the first pressure plate and the second pressure plate.

[0013] Optionally, the mounting base is provided with a first limiting member, which is threaded through the mounting base and connected to the guide post. The free end of the guide post is threadedly connected to a second limiting member, which is provided with a limiting part for limiting the second pressure plate.

[0014] Optionally, the second pressure plate has a pressing part and a mating part, the pressing part being located between the limiting part and the free end of the guide post, and the distance between the limiting part and the free end of the guide post being greater than the thickness of the pressing part.

[0015] Optionally, the input shaft is provided with a push rod at one end near the movable part, and a chuck is provided on the push rod. The chuck abuts against the movable part and engages with the mating part.

[0016] Optionally, the pressure plate is provided with a plurality of fasteners connected to the first pressure plate. When the first pressure plate moves toward the mounting base, the clutch plate and the friction plate are pressed together. When the first pressure plate moves away from the mounting base, the clutch plate and the friction plate are separated.

[0017] This utility model also proposes a motorcycle engine, which includes the aforementioned motorcycle clutch.

[0018] As described above, the motorcycle clutch and engine proposed in this utility model have the following beneficial effects:

[0019] In this invention, a mounting base is provided for placing the friction plate and clutch plate, and also provides support when they are pressed together. A clutch actuation mechanism is provided to drive the friction plate and clutch plate to press together. An end cover is provided to house a hydraulic drive mechanism, which can be integrated to generate corresponding actions for the clutch actuation mechanism. Compared with the prior art, this invention, by transforming a traditional hydraulic cylinder into a hydraulic drive mechanism integrated into the end cover, uses the hydraulic drive mechanism to drive the clutch actuation mechanism to achieve the corresponding actions, thereby actuating and disengaging the friction plate and clutch plate. This eliminates the need for a separate hydraulic cylinder inside the engine, reducing the engine's size and weight. Attached Figure Description

[0020] Figure 1 The diagram shown is an isometric view of an embodiment of the present invention.

[0021] Figure 2 The image shown is an exploded view from a first angle in one embodiment of this utility model;

[0022] Figure 3 The image shown is an exploded view from a second angle in one embodiment of this utility model;

[0023] Figure 4 The diagram shown is a cross-sectional view of an embodiment of the present invention.

[0024] Figure 5 The image shown is an enlarged view of point A in one embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] End cap 1, limit block 101, oil supply channel 2, moving part 3, hydraulic chamber 301, return spring 4, sealing ring 5, push rod 6, chuck 7, first pressure plate 8, second pressure plate 9, pressing part 901, mating part 902, first limit member 10, second limit member 11, limit part 1101, guide rod 12, clutch spring 13, pressure cover 14, fastener 15, friction plate 16, clutch plate 17, mounting base 18, drive plate 19, input shaft 20. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0029] like Figures 1-5 As shown, this utility model proposes a motorcycle clutch.

[0030] Mounting base 18, on which friction plate 16 and clutch plate 17 are stacked;

[0031] The clutch mechanism is mounted on the mounting base 18 and is used to press or release the friction plate 16 and the clutch plate 17.

[0032] End cap 1 is located at the end of the clutch mechanism. A hydraulic drive mechanism is integrated on end cap 1, which is used to drive the clutch mechanism.

[0033] In this embodiment, the mounting base 18 is used to place the friction plate 16 and the clutch plate 17, and also provides support when they are pressed together. The clutch action mechanism is used to drive the friction plate 16 and the clutch plate 17 to press together. The end cover 1 is used to house the hydraulic drive mechanism and can integrate the hydraulic drive mechanism to generate corresponding actions for the clutch action mechanism. Compared with the prior art, this utility model transforms the traditional hydraulic cylinder into a hydraulic drive mechanism and integrates it into the end cover 1. The hydraulic drive mechanism drives the clutch action mechanism to achieve the corresponding actions to drive the engagement and disengagement of the friction plate 16 and the clutch plate 17. There is no need to set up a hydraulic cylinder inside the engine, so the engine size and weight can be reduced.

[0034] For example, in this embodiment, the end cover 1 is located at the front end of the entire clutch, and its whole is a disc-shaped structure with an inwardly recessed side facing the clutch action mechanism. The end cover 1 is installed on the engine housing through a connector, and its outer end face is located outside the housing.

[0035] In one exemplary embodiment, such as Figure 4 As shown, the hydraulic drive mechanism includes a hydraulic chamber 301 and a movable part 3 disposed in the hydraulic chamber 301. The hydraulic chamber 301 is disposed on the side of the end cover 1 facing the clutch action mechanism, and the movable part 3 can reciprocate along the inner wall of the hydraulic chamber 301.

[0036] In this embodiment, the hydraulic chamber 301 provides a space for pressurized liquid. When the pressurized liquid enters the hydraulic chamber 301, the pressure will drive the movable part 3 to move, thereby driving the clutch mechanism to operate. After the pressure is released, the movable part 3 can be reset.

[0037] For example, in this embodiment, a limiting block 101 is integrated on the side of the end cover 1 near the clutch action mechanism. The limiting block 101 is cylindrical in shape, and its internal space forms a hydraulic cavity 301 with the end cover 1.

[0038] It is worth noting that in this embodiment, the limiting block 101 and the end cap 1 can be integrally set or connected separately.

[0039] In an exemplary embodiment, a fluid passage is provided on the end cap 1, which connects the outer edge of the end cap 1 and the hydraulic chamber 301. The fluid passage is used to introduce pressurized fluid into the hydraulic chamber 301 to drive the movable part 3 to move.

[0040] In this embodiment, a fluid passage is provided on the end cap 1, allowing pressurized fluid to enter the hydraulic chamber 301 through the fluid passage, thereby driving the movable part 3 to move.

[0041] For example, the inlet of the fluid passage is located on the outer edge of the end cover 1 and is integrally formed with the end cover 1. This arrangement allows the pressurized fluid to enter the hydraulic chamber 301 from the side of the end cover 1. Therefore, the device or apparatus that provides the pressurized fluid can be located outside the engine, thereby effectively reducing the size and weight of the engine.

[0042] It is worth noting that in this embodiment, hydraulic oil is used as the pressurized fluid, but other pressurized fluids can also be used.

[0043] In an exemplary embodiment, a reset member is provided between the movable part 3 and the end cover 1. The reset member can drive the movable part 3 to move away from the clutch action mechanism. A plurality of sealing rings 5 ​​are provided between the movable part 3 and the hydraulic chamber 301.

[0044] In this embodiment, the reset member can drive the movable part 3 to reset. When the reset member is reset, the movable part 3 moves away from the clutch action mechanism, and the clutch action mechanism no longer applies pressure to the friction plate 16 and the clutch plate 17 to achieve the separation of the clutch plate 17 and the friction plate 16. At the same time, the multiple sealing rings 5 ​​can prevent the pressurized fluid in the hydraulic chamber 301 from entering the clutch.

[0045] For example, in this embodiment, the movable part 3 is cylindrical in shape, with its opening facing the hydraulic chamber 301, and it can move in the limiting block 101. The sealing ring 5 is disposed between the outer wall of the movable part 3 and the inner wall of the limiting block 101.

[0046] For example, the number of sealing rings 5 ​​is three.

[0047] For example, in this embodiment, the reset component is a reset spring 4, one end of which is connected to the inner wall of the end cover 1 and the other end is connected to the bottom of the movable part 3.

[0048] It is worth noting that in this embodiment, the movable part 3 can also be a plate that can move in the hydraulic chamber 301, and multiple sealing rings 5 ​​can be provided on the side wall of the plate to achieve the same result.

[0049] In an exemplary embodiment, the present invention further includes an input shaft 20, which passes through the mounting base 18. The clutch action mechanism includes a first pressure plate 8 and a second pressure plate 9. The first pressure plate 8 is sleeved on the input shaft 20 and has a pressure cover 14. The mounting base 18 has a plurality of guide posts for guiding the first pressure plate 8. The second pressure plate 9 is disposed at the free end of the guide posts. The second pressure plate 9 can be driven to approach the first pressure plate 8 by a hydraulic drive mechanism. A clutch spring 13 is provided between the first pressure plate 8 and the second pressure plate 9.

[0050] In this embodiment, the input shaft 20 is mounted on the drive disc 19, and the drive disc 19 is provided with a drive gear on its exterior, which is used to cooperate with the gear on the crankshaft. The input shaft 20 is connected to the gearbox to realize the function of speed change.

[0051] For example, the input shaft 20 is provided with a push rod 6 at one end near the movable part 3, and a chuck 7 is provided on the push rod 6, which abuts against the movable part 3.

[0052] For example, in this embodiment, the end of the input shaft 20 is provided with a positioning groove for the push rod 6 to move. When the hydraulic chamber 301 is filled with hydraulic oil, it will push the push rod 6 to move axially in the positioning groove. The positioning groove can limit the push rod 6 and limit the movement distance of the push rod 6.

[0053] It is worth noting that in this embodiment, the push rod 6 and the chuck 7 are integrated as one piece for easy assembly.

[0054] It should also be noted that in this embodiment, a gasket and a bearing are provided between the movable part 3 and the chuck 7. The gasket is located between the bearing and the movable part 3. When pressed, the movable part 3 is firmly pressed onto the bearing by the gasket. The bearing transmits the pressure to the chuck 7. The bearing allows the push rod 6 to rotate, preventing the movable part 3 from directly contacting the chuck 7 and preventing damage to the chuck 7 due to long-term operation. At the same time, the end of the push rod 6 away from the input shaft 20 passes through the bearing and the gasket, and the gasket is fitted inside the bottom of the movable part 3.

[0055] In an exemplary embodiment, the mounting base 18 is provided with a first limiting member 10, which is threaded into the mounting base 18 and connected to the guide post. The free end of the guide post is threadedly connected to a second limiting member 11, which is provided with a limiting part 1101 for limiting the second pressure plate 9.

[0056] In this embodiment, the guide rod 12 can be installed by the first limiting member 10, so that the guide rod 12 can be firmly fixed on the mounting base 18. The second limiting member 11 and the limiting part 1101 on the second limiting member 11 can limit the second pressure plate 9, so that the movement space of the second pressure plate 9 is limited between the end of the guide rod 12 and the limiting part 1101.

[0057] For example, in this embodiment, the first limiting member 10 is a countersunk screw, and the second limiting member 11 is a screw with a hexagonal nut at the end.

[0058] For example, the second pressure plate 9 has a pressing part 901 and a mating part 902. The pressing part 901 is located between the limiting part 1101 and the free end of the guide post. The distance between the limiting part 1101 and the free end of the guide post is greater than the thickness of the pressing part 901. The chuck 7 engages with the mating part 902. Specifically, in this embodiment, both the inner edge of the mating part 902 and the outer edge of the chuck 7 are formed with steps. The steps form a concave-convex fit to achieve engagement, so the chuck 7 can transmit thrust to the second pressure plate 9.

[0059] It is worth noting that in this embodiment, the moving space of the pressing part 901 is located between the end of the limiting part 1101 and the guide post. Therefore, the distance between the limiting part 1101 and the free end of the guide post is greater than the thickness of the pressing part 901, so as to ensure that the pressing part 901 can move and thus compress the clutch spring 13.

[0060] In an exemplary embodiment, the pressure cover 14 is provided with a plurality of fasteners 15 connected to the first pressure plate 8. When the first pressure plate 8 moves toward the mounting base 18, the clutch plate 17 and the friction plate 16 are pressed together. When the first pressure plate 8 moves away from the mounting base 18, the clutch plate 17 and the friction plate 16 are separated.

[0061] In this embodiment, multiple fasteners 15 are provided on the pressure cover 14, enabling the first pressure plate 8 to be connected to the pressure cover 14. When the first pressure plate 8 receives pressure transmitted from the clutch spring 13, it can be synchronously transmitted to the pressure cover 14. The pressure cover 14 presses the stacked clutch plate 17 and friction plate 16 together to achieve power transmission.

[0062] For example, in this embodiment, the fastener 15 is a fastening screw that passes through the pressure cover 14 and is threadedly connected to the first pressure plate 8 to achieve stable power transmission.

[0063] This utility model also provides a motorcycle engine that includes the aforementioned motorcycle clutch.

[0064] In summary, this invention eliminates the traditional hydraulic cylinder in a clutch and instead provides a movable part 3 on the end cover 1. This movable part 3 and the limiting block 101 form a closed hydraulic chamber 301. Hydraulic oil is then introduced into the hydraulic chamber 301 through the oil supply channel 2 on the end cover 1, thereby driving the corresponding functional components to move and enabling the friction plate 16 and clutch plate 17 to engage and disengage. Therefore, the space required for a hydraulic cylinder within the engine can be eliminated, resulting in a smaller engine size and a lighter overall engine weight, thus improving the engine's miniaturization and weight reduction performance.

[0065] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A motorcycle clutch, characterized in that, The utility model relates to a motorcycle clutch, comprising: a mounting seat, which is provided with a stack of friction plates and clutch plates; a clutch action mechanism, which is arranged on the mounting seat and used to press or release the friction plates and clutch plates; an end cover, which is located at the end of the clutch action mechanism, and is integrated with a hydraulic drive mechanism used to drive the clutch action mechanism to act, the hydraulic drive mechanism comprising a hydraulic cavity and a movable part arranged in the hydraulic cavity, the hydraulic cavity being arranged on the side of the end cover facing the clutch action mechanism, and the movable part being able to reciprocate along the inner wall of the hydraulic cavity.

2. Motorcycle clutch according to claim 1, characterized in that: A liquid passage is formed in the end cover, which connects the outer edge of the end cover and the hydraulic cavity, and is used to introduce pressure liquid into the hydraulic cavity to push the movable part to act.

3. Motorcycle clutch according to claim 2, characterized in that: A reset member is arranged between the movable part and the end cover, which can drive the movable part to move away from the clutch action mechanism, and a plurality of sealing rings are arranged between the movable part and the hydraulic cavity.

4. Motorcycle clutch according to claim 3, characterized in that: The utility model further comprises an input shaft, which is arranged through the mounting seat, the clutch action mechanism comprises a first pressure plate and a second pressure plate, the first pressure plate is sleeved on the input shaft, the first pressure plate is provided with a gland, a plurality of guide columns for guiding the first pressure plate are arranged on the mounting seat, the second pressure plate is arranged at the free end of the guide column, the second pressure plate can be driven by the hydraulic drive mechanism to move close to the first pressure plate, and a clutch spring is arranged between the first pressure plate and the second pressure plate.

5. Motorcycle clutch according to claim 4, characterized in that: A first limiting member is arranged on the mounting seat, which is threadedly connected with the guide column by penetrating into the mounting seat, a second limiting member is threadedly connected with the free end of the guide column, and the second limiting member is provided with a limiting part used to limit the second pressure plate.

6. Motorcycle clutch according to claim 5, characterized in that: The second pressure plate has a pressing part and a matching part, the pressing part is located between the limiting part and the free end of the guide column, and the distance between the limiting part and the free end of the guide column is greater than the thickness of the pressing part.

7. Motorcycle clutch according to claim 6, characterized in that: The input shaft is provided with a push rod at the end close to the movable part, the push rod is provided with a chuck, the chuck abuts against the movable part, and the chuck is clamped with the matching part.

8. The motorcycle clutch of claim 4, wherein: The gland is provided with a plurality of fasteners connected with the first pressure plate, when the first pressure plate moves towards the mounting seat, the clutch plates are pressed against the friction plates, and when the first pressure plate moves away from the mounting seat, the clutch plates are separated from the friction plates.

9. A motorcycle engine characterised in that: The utility model relates to a motorcycle clutch, comprising: any one of claims 1-8.

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