Clutch disc assembly, clutch, power system and vehicle

Abstract

The utility model belongs to the technical field of vehicle parts, and discloses a clutch disc assembly, a clutch, a power system and a vehicle. The clutch disc assembly includes a driven disc and a shock absorber. The driven disc can abut against a flywheel of the clutch or be separated from the flywheel, and the driven disc is provided with a driven disc inner hole. The shock absorber comprises a shock absorption disc, a disc hub structure and a shock absorption elastic piece, the shock absorption disc and the disc hub structure are coaxially connected, the disc hub structure partially penetrates through an inner hole of the driven disc, the input shaft connected to the gearbox is connected to one of the inner hole of the driven disc and the disc hub structure, a limiting groove is formed in one of the inner hole of the driven disc and the disc hub structure, and a limiting part is arranged on the other of the inner hole of the driven disc and the disc hub structure and inserted into the limiting groove. The limiting part can move in the limiting groove in the circumferential direction of the driven disc. The damping elastic piece is connected between the disc hub structure and the driven disc in an abutting mode. And when the disc hub structure and the driven disc relatively rotate until the limiting part abuts against the inner wall of the limiting groove, the disc hub structure and the driven disc are relatively fixed. The clutch disc assembly integrates the limiting function, the structure can be simplified, and the structural strength can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to a clutch disc assembly, a clutch, a power system, and a vehicle. Background Technology

[0002] The core principle of a dry friction clutch is to transmit torque using the frictional torque generated between the contact surfaces. It is a key component in mechanical transmissions used for shaft-to-shaft connections. A dry friction clutch mainly consists of a flywheel and a driven disc assembly. The two are structurally independent but work together to engage and disengage the vehicle's engine crankshaft and transmission.

[0003] Fluctuations in engine speed during operation can cause torsional vibrations in the transmission system, leading to vehicle noise and even damage to the gearbox. Therefore, the driven disc assembly utilizes a shock absorber equipped with a torsional damping spring to reduce torsional fluctuations and impacts. To protect the damping spring from exceeding its torsional limit and causing damage, the shock absorber typically incorporates a limit structure. When the instantaneous torque transmitted by the transmission system reaches its designed limit, the limit structure mechanically restricts the movement, preventing further increase in the working load on the damping spring.

[0004] Existing limiting structures are often additional structures such as limiting pins or limiting blocks. Installing these structures requires drilling holes in the shock absorber, affecting its structural strength and increasing the risk of breakage. Furthermore, existing limiting structures have a small limiting area, resulting in higher impact forces, faster wear, and insufficient reliability. As wear on the limiting structure intensifies, the working load and stress on the shock absorber spring increase, shortening the lifespan of both the spring and the shock absorber, thus affecting the lifespan of the dry friction clutch.

[0005] Therefore, there is an urgent need for a clutch disc assembly, clutch, power system, and vehicle to solve the above problems. Utility Model Content

[0006] According to one aspect of the present invention, the objective is to provide a clutch disc assembly that integrates a limiting function, eliminating the need for drilling holes to install additional limiting structures, thereby simplifying the structure and enhancing its strength.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Clutch disc assembly, including:

[0009] The driven plate can abut against the flywheel of the clutch and can also separate from the flywheel. The driven plate has an inner hole.

[0010] A shock absorber includes a shock absorber disc, a disc hub structure, and a shock absorber elastic element. The shock absorber disc and the disc hub structure are coaxially connected. The disc hub structure is located in the inner hole of the driven disc and can be connected to the input shaft of the gearbox. One of the inner hole of the driven disc and the disc hub structure is provided with a limiting groove, and the other is provided with a limiting part. The limiting part is inserted into the limiting groove and can move in the limiting groove along the circumference of the driven disc. When the disc hub structure and the driven disc rotate relative to each other until the limiting part abuts against the inner wall of the limiting groove, the disc hub structure and the driven disc are relatively fixed.

[0011] The damping elastic element is arranged in the damping disc, with one end abutting against the disc hub structure and the other end abutting against the driven disc. The elastic direction of the damping elastic element is the same as the relative rotation direction of the disc hub structure and the driven disc.

[0012] As a preferred embodiment of the clutch disc assembly provided by this utility model, there are multiple limiting grooves, which are arranged circumferentially at intervals on the inner wall of the driven disc inner hole; there are multiple limiting parts, which are arranged circumferentially at intervals on the periphery of the disc hub structure, and the limiting parts are inserted into the limiting grooves one by one.

[0013] As a preferred embodiment of the clutch disc assembly provided by this utility model, the disc structure includes an outer disc hub and an inner disc hub. The outer disc hub is provided with an outer disc hub inner hole, and the inner wall of the outer disc hub inner hole is provided with an outer disc hub spline groove in the circumferential direction. The outer peripheral side of the inner disc hub is provided with an inner disc hub spline portion in the circumferential direction. The inner disc hub is disposed in the outer disc hub inner hole, and the inner disc hub spline portion is inserted into the outer disc hub spline groove. The limiting portion is disposed on the outer peripheral side of the outer disc hub.

[0014] As a preferred embodiment of the clutch disc assembly provided by this utility model, the driven disc includes a driven disc body and a friction plate. The driven disc body is coaxially spaced from the flywheel, and the inner hole of the driven disc is formed on the driven disc body along the axis. The friction plate is disposed on the side of the driven disc body facing the flywheel. The driven disc body can move axially on the flywheel to drive the friction plate to abut against or disengage from the flywheel.

[0015] As a preferred embodiment of the clutch disc assembly provided by this utility model, there are multiple friction plates, and the multiple friction plates are evenly arranged circumferentially on the driven disc body.

[0016] As a preferred embodiment of the clutch disc assembly provided by this utility model, the shock absorber further includes an output shaft, which is coaxially connected to the disc hub structure and can be connected to the input shaft of the gearbox.

[0017] As a preferred embodiment of the clutch disc assembly provided by this utility model, there are multiple shock-absorbing elastic elements, and the multiple shock-absorbing elastic elements are arranged in a circular array in the shock-absorbing disc.

[0018] According to another aspect of the present invention, the object is to provide a clutch comprising a flywheel, a pressure plate, and a cover, and further comprising a clutch disc assembly as described in any of the above embodiments, wherein the flywheel is connected to the crankshaft of an engine, the pressure plate is disposed in the cover, the cover is connected to the flywheel, the clutch disc assembly is located between the pressure plate and the flywheel, and the pressure plate is movable along the axial direction of the flywheel to press the clutch disc assembly against the flywheel or release the pressure on the clutch disc assembly.

[0019] According to another aspect of the present invention, the object is to provide a power system comprising an engine, a transmission, and a clutch as described above, the clutch being disposed between the engine and the transmission.

[0020] According to another aspect of the present invention, the object is to provide a vehicle comprising wheels and a power system as described above, wherein the gearbox is drive-connected to the wheels.

[0021] The beneficial effects of this utility model are:

[0022] The clutch disc assembly provided by this utility model includes a driven disc and a shock absorber. The driven disc can abut against the flywheel of the clutch and can also separate from it. The driven disc has an inner hole. The shock absorber includes a damping disc, a disc hub structure, and a damping elastic element. The damping disc and the disc hub structure are coaxially connected. A portion of the disc hub structure passes through the inner hole of the driven disc and can be connected to the input shaft of the gearbox. The damping elastic element is arranged in the damping disc, with one end abutting against the disc hub structure and the other end abutting against the driven disc. The elastic direction of the damping elastic element is the same as the relative rotation direction of the disc hub structure and the driven disc. By incorporating the aforementioned shock absorber, the clutch disc assembly can form a buffer, achieving torsional damping and reducing torsional fluctuations and impacts of the driven disc relative to the flywheel. The hub structure is located within the inner bore of the driven disc and can be connected to the input shaft of the gearbox. One of the driven disc's inner bore and the hub structure is provided with a limiting groove, and the other with a limiting part. The limiting part is inserted into the limiting groove and can move within the limiting groove along the circumference of the driven disc. When the hub structure and the driven disc rotate relative to each other until the limiting part abuts against the inner wall of the limiting groove, the hub structure and the driven disc are relatively fixed. When the hub structure and the driven disc rotate relative to each other until the deformation of the damping elastic element reaches its designed limit value, the limiting part will abut against the inner wall of the limiting groove, forming a mechanical limit. At this point, the working load of the damping elastic element no longer increases.

[0023] The clutch provided by this utility model, by setting the above-mentioned clutch disc assembly, can improve reliability, reduce the number of parts, and extend service life.

[0024] The power system provided by this utility model can realize the connection and disconnection of the transmission process through the above-mentioned clutch, which has high reliability.

[0025] The vehicle provided by this utility model can achieve reliable driving and control of the vehicle through the above-mentioned power system. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the clutch disc assembly provided in an embodiment of the present utility model;

[0028] Figure 2 This is a partial cross-sectional view of the clutch disc assembly provided in this embodiment of the utility model.

[0029] In the picture:

[0030] 100. Driven disc; 110. Limiting groove; 120. Driven disc body; 130. Friction plate;

[0031] 200, Shock absorber; 210, Shock absorber disc; 220, Limiting part; 230, Shock absorber elastic element; 240, Outer disc hub; 241, Outer disc hub spline groove; 250, Inner disc hub; 251, Inner disc hub spline part; 260, Output shaft. Detailed Implementation

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] This embodiment provides a clutch disc assembly, a clutch, a powertrain system, and a vehicle. The vehicle includes wheels and the aforementioned powertrain system. The powertrain system includes an engine, a transmission, and the clutch provided in this embodiment. The clutch is disposed between the engine and the transmission, and is used to connect or disconnect the transmission between the engine and the transmission.

[0042] The clutch provided in this embodiment includes a flywheel, a pressure plate, and a cover. It also includes a clutch disc assembly as provided in this embodiment. The flywheel is connected to the crankshaft of the engine, the pressure plate is disposed within the cover, and the cover is coaxially connected to the flywheel. The clutch disc assembly is located between the pressure plate and the flywheel. The pressure plate can move along the axial direction of the flywheel towards the flywheel to press the clutch disc assembly against the flywheel, thereby achieving the transmission connection between the engine and the gearbox. The pressure plate can also move along the axial direction of the flywheel away from the flywheel to release the pressure on the clutch disc assembly.

[0043] Specifically, the clutch also includes a spring plate disposed within the cover and located on the side of the pressure plate opposite to the clutch disc assembly. In its free state, the spring plate's center position protrudes away from the pressure plate relative to its peripheral position, with the peripheral position pressing against the pressure plate and pressing the clutch disc assembly against the flywheel. When the center position is subjected to pressure in the direction of the pressure plate, the peripheral position tilts away from the center position, moving away from the pressure plate, thereby releasing the pressure on the clutch disc assembly, at which point the clutch disc assembly can disengage from the flywheel.

[0044] Figure 1 This diagram shows a clutch disc assembly provided in an embodiment of the present invention. Figure 2 A partial cross-sectional view of the clutch disc assembly provided in an embodiment of the present invention is shown. (Refer to...) Figure 1 and Figure 2 The clutch disc assembly provided in this embodiment includes a driven disc 100 and a shock absorber 200.

[0045] Specifically, the driven plate 100 can abut against the flywheel of the clutch and can also separate from the flywheel. The driven plate 100 has an inner hole. The shock absorber 200 includes a shock absorber 210, a hub structure, and a shock-absorbing elastic element 230. The shock absorber 210 and the hub structure are coaxially connected. The hub structure partially passes through the inner hole of the driven plate and can be connected to the input shaft of the gearbox. The shock-absorbing elastic element 230 is arranged in the shock absorber 210, with one end abutting against the hub structure and the other end connected to the driven plate 100. The elastic direction of the shock absorber 230 is the same as the relative rotation direction of the hub structure and the driven plate 100. By providing the above-mentioned shock absorber 200, the clutch disc assembly can form a buffer, realize torsional damping, and reduce the torsional fluctuations and impacts of the driven plate 100 relative to the flywheel.

[0046] More specifically, a limiting groove 110 is provided in the inner hole of the driven disk, and one of the inner hole of the driven disk and the disk hub structure is provided with the limiting groove 110, while the other is provided with a limiting portion 220. In this embodiment, the limiting portion 220 is provided on the circumferential side of the disk hub structure, and the limiting groove 110 is provided in the inner hole of the driven disk. The limiting portion 220 is inserted into the limiting groove 110 and can move in the limiting groove 110 along the circumferential direction of the driven disk 100. When the disk hub structure and the driven disk 100 rotate relative to each other until the limiting portion 220 abuts against the inner wall of the limiting groove 110 in the width direction, the disk hub structure and the driven disk 100 are relatively fixed. When the disc hub structure and the driven disc 100 rotate relative to each other until the deformation of the damping elastic member 230 reaches the designed limit value, the limiting part 220 will form a mechanical limit with the inner wall of the limiting groove 110, and at this time the working load of the damping elastic member 230 will no longer increase.

[0047] More specifically, there are multiple limiting grooves 110, which are arranged circumferentially at intervals on the inner wall of the driven disc's inner hole. There are also multiple limiting portions 220, which are arranged circumferentially at intervals on the periphery of the disc hub structure, each corresponding to and inserted into a limiting groove 110. This arrangement increases the limiting area, reduces the impact force between a single limiting groove 110 and a single limiting portion 220, prevents wear, improves the reliability of the limiting action and the lifespan of the limiting portion 220, thus providing more reliable protection for the shock-absorbing elastic element 230.

[0048] More specifically, there are multiple damping elastic elements 230, which are arranged in a circular array within the damping disc 210. This arrangement improves the reliability and damping effect of the shock absorber 200.

[0049] Continue to refer to Figure 1The driven disc 100 includes a driven disc body 120 and a friction plate 130. The driven disc body 120 is coaxially spaced from the flywheel, and an inner hole of the driven disc is formed on the driven disc body 120 along the axial direction. The friction plate 130 is fixedly mounted on the side of the driven disc body 120 facing the flywheel by rivets. The driven disc body 120 is axially movable on the flywheel to drive the friction plate 130 to abut against or disengage from the flywheel. When the driven disc body 120 is pressed against the flywheel, the friction plate 130 abuts tightly against the flywheel, thereby realizing the transmission between the flywheel and the driven disc 100 by friction.

[0050] Specifically, there are multiple friction plates 130, which are evenly arranged circumferentially on the driven disc body 120. With the above arrangement, multiple friction plates 130 can simultaneously press against the flywheel, thereby improving the uniformity and reliability of the contact between the driven disc 100 and the flywheel, thus ensuring the reliability of the transmission.

[0051] Continue to refer to Figure 1 The hub structure includes an outer hub 240 and an inner hub 250. The outer hub 240 has an outer hub inner hole, and the inner wall of the outer hub inner hole is provided with an outer hub spline groove 241 along the circumferential direction. The outer periphery of the inner hub 250 is provided with an inner hub spline portion 251 along the circumferential direction. The inner hub 250 is disposed in the outer hub inner hole, and the inner hub spline portion 251 is inserted into the outer hub spline groove 241. The limiting portion 220 is provided on the outer periphery of the outer hub 240. Through the above arrangement, the coaxial connection between the outer hub 240 and the inner hub 250 can be ensured, and relative rotation between the two can be avoided.

[0052] Specifically, the shock absorber 200 also includes an output shaft 260, which is coaxially connected to the hub structure and to the input shaft of the gearbox. In this embodiment, the inner hub 250 is provided with an inner hub bore, and the inner wall of the inner hub bore is provided with an inner hub spline groove along the circumferential direction. The output shaft 260 is specifically a spline shaft, which can be inserted into the inner hub bore to achieve a spline engagement with the inner hub bore, avoiding relative rotation and realizing a coaxial transmission connection.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Clutch disc assembly, characterized in that include: The driven plate (100) is capable of abutting against the flywheel of the clutch and can also be separated from the flywheel. The driven plate (100) has a driven plate inner hole. A shock absorber (200) includes a shock absorber disc (210), a disc hub structure, and a shock absorber elastic element (230). The shock absorber disc (210) and the disc hub structure are coaxially connected. A portion of the disc hub structure passes through the inner hole of the driven disc and can be connected to the input shaft of the gearbox. One of the inner hole of the driven disc and the disc hub structure is provided with a limiting groove (110), and the other is provided with a limiting part (220). The limiting part (220) is inserted into the limiting groove (110) and can move in the limiting groove (110) along the circumference of the driven disc (100). When the disc hub structure and the driven disc (100) rotate relative to each other until the limiting part (220) abuts against the inner wall of the limiting groove (110), the disc hub structure and the driven disc (100) are relatively fixed. The damping elastic element (230) is arranged in the damping disc (210), with one end abutting against the disc hub structure and the other end connected to the driven disc (100). The elastic direction of the damping elastic element (230) is the same as the relative rotation direction of the disc hub structure and the driven disc (100).

2. The clutch disc assembly of claim 1, wherein, There are multiple limiting grooves (110), and the multiple limiting grooves (110) are arranged circumferentially at intervals on the inner wall of the inner hole of the driven disk; there are multiple limiting parts (220), and the multiple limiting parts (220) are arranged circumferentially at intervals on the periphery of the disk hub structure, and the limiting parts (220) correspond one to one and are inserted into the limiting grooves (110).

3. The clutch disc assembly of claim 1, wherein, The hub structure includes an outer hub (240) and an inner hub (250). The outer hub (240) is provided with an outer hub inner hole. The inner wall of the outer hub inner hole is provided with an outer hub spline groove (241) along the circumferential direction. The outer peripheral side of the inner hub (250) is provided with an inner hub spline portion (251) along the circumferential direction. The inner hub (250) is disposed in the outer hub inner hole. The inner hub spline portion (251) is inserted into the outer hub spline groove (241). The limiting portion (220) is disposed on the outer peripheral side of the outer hub (240).

4. The clutch disc assembly of claim 1, wherein, The driven disk (100) includes a driven disk body (120) and a friction plate (130). The driven disk body (120) is coaxially spaced from the flywheel. The inner hole of the driven disk is opened on the driven disk body (120) along the axis. The friction plate (130) is disposed on the side of the driven disk body (120) facing the flywheel. The driven disk body (120) can move in the axial direction of the flywheel to drive the friction plate (130) to abut or disengage from the flywheel.

5. The clutch disc assembly of claim 4, wherein, There are multiple friction plates (130), and the multiple friction plates (130) are evenly arranged circumferentially on the driven disk body (120).

6. The clutch disc assembly of claim 1, wherein, The shock absorber (200) also includes an output shaft (260) which is coaxially connected to the hub structure and can be connected to the input shaft of the gearbox.

7. The clutch disc assembly of any of claims 1-6, wherein, There are multiple shock-absorbing elastic elements (230), and the multiple shock-absorbing elastic elements (230) are arranged in a circular array in the shock-absorbing disk (210).

8. A clutch characterised in that The device includes a flywheel, a pressure plate, and a cover, and further includes a clutch disc assembly as described in any one of claims 1-7, wherein the flywheel is connected to the crankshaft of the engine, the pressure plate is disposed in the cover, the cover is connected to the flywheel, the clutch disc assembly is located between the pressure plate and the flywheel, and the pressure plate is movable along the axial direction of the flywheel to press the clutch disc assembly against the flywheel or release the pressure on the clutch disc assembly.

9. A power system characterized by, It includes an engine, a transmission, and a clutch as described in claim 8, the clutch being disposed between the engine and the transmission.

10. A vehicle, characterized in that, Includes wheels and the power system as described in claim 9, wherein the gearbox is drive-connected to the wheels.

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