Mute type pre-damping clutch driven disc

Abstract

The utility model discloses a mute type pre-damping clutch driven disc, which belongs to the technical field of clutch driven discs and comprises a driven disc, friction linings are fixedly mounted on two sides of the driven disc, a spline housing is mounted on the inner side of the driven disc, and a driving disc is fixedly mounted on the outer surface of the spline housing. A plurality of torsion grooves are formed in the inner side of the driven disc, a traditional torsion spring is arranged on the outer periphery of the pre-damping assembly in a sleeving mode, the torsion spring and the pre-damping assembly can work in a matched mode at the same time, the pre-damping assembly is mainly composed of a plurality of buffering devices, the buffering devices are made of rubber, and therefore high-frequency vibration can be absorbed through the torsion spring; and the buffer device can absorb low-frequency vibration generated when the engine is in an idle speed or at a low rotating speed through the damping characteristic of rubber, the pre-vibration-reduction effect can be achieved while noise can be reduced through the pre-vibration-reduction assembly, and the comfort of driving at a low speed is improved.

Description

Technical Field

[0001] This utility model relates to the field of clutch driven plate technology, and more specifically, to a silent pre-damping clutch driven plate. Background Technology

[0002] The clutch driven plate is one of the core components of the automotive clutch system. It is located between the engine flywheel and the pressure plate and is responsible for transmitting or cutting off the engine's power to the transmission. When the clutch is engaged, the driven plate is pressed between the flywheel and the pressure plate, and the engine power is transmitted to the transmission through friction. When the clutch pedal is depressed, the pressure plate releases pressure, the driven plate separates from the flywheel, interrupts the power transmission, and facilitates gear shifting or stopping.

[0003] Chinese Patent Publication No. CN222377050U provides a clutch driven plate for a vehicle and a vehicle. The clutch driven plate of this solution has a wave plate assembly, which can be formed by stacking multiple wave plates in the thickness direction, and a deformation space is formed between two adjacent wave plates. When the clutch driven plate is in contact with the flywheel, the wave plate assembly can compress the deformation space. Multiple wave plates can deform towards the deformation space. Compared with the prior art, the thickness of each wave plate is small, which reduces the stiffness of the wave plate assembly and makes the engagement and disengagement between the clutch driven plate and the flywheel smoother.

[0004] Because the clutch will vibrate when it comes into contact with the flywheel of the car engine, the above-mentioned solutions and the driven plate in the traditional car clutch all use torsion springs to buffer the torsional vibration of the engine and protect the transmission system. However, the springs are weak in suppressing low-frequency vibrations when the engine is idling or at low speeds. For example, when the car starts on a slope and the accelerator and clutch are in a semi-engaged state, a lot of low-frequency vibrations and noise are easily generated, which reduces the user experience when using it at low speeds.

[0005] Therefore, a silent pre-damping clutch driven plate is proposed to address the above problems. Utility Model Content

[0006] This utility model provides a silent pre-damping clutch driven plate, which can improve the problems existing in related technologies: the torsion spring is weak in suppressing low-frequency vibrations when the engine is idling or at low speed. For example, when the car starts on a slope and the accelerator and clutch are in a semi-engaged state, a lot of low-frequency vibrations and noise are easily generated, thereby reducing the user experience when using it at low speeds.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] This application provides a silent pre-damping clutch driven plate, including a driven plate with friction linings fixedly installed on both sides. A spline sleeve is installed on the inner side of the driven plate, and a drive plate is fixedly installed on the outer surface of the spline sleeve. Multiple torsion grooves are formed on the inner side of the driven plate, and pre-damping components are installed inside each of the multiple torsion grooves. Multiple movable grooves are formed on the outer edge of the driven plate, and heat dissipation components are provided inside each of the multiple movable grooves. The pre-damping components include a movable plate one and a movable plate two. Multiple buffer devices are provided between the movable plate one and the movable plate two, and a torsion spring is provided between the movable plate one and the movable plate two. The buffer devices and the torsion spring cooperate to form a double buffer.

[0009] The technical solutions described in this application embodiment have at least the following technical effects:

[0010] By enclosing a traditional torsion spring around the pre-damping assembly, the torsion spring and the pre-damping assembly can work together simultaneously. The pre-damping assembly mainly consists of multiple damping devices made of rubber. The torsion spring can absorb high-frequency vibrations and quickly absorb and release energy, while the damping devices can absorb low-frequency vibrations at engine idling or low speeds through the damping properties of rubber. The pre-damping assembly can reduce noise while achieving the effect of pre-damping, thus improving the comfort of driving at low speeds.

[0011] Multiple heat dissipation components are installed between the two friction linings. When the driven disc comes into contact with the flywheel on the engine and is driven to rotate, heat is generated due to friction. At this time, centrifugal force can throw the heat dissipation fins outward, thereby increasing the contact area between the driven disc and the outside, thus increasing its heat dissipation effect.

[0012] In some embodiments, multiple annularly distributed insert plates are fixedly installed on the outer ends of the first movable plate and the second movable plate, and the insert plates on the first movable plate and the second movable plate can be inserted into each other in the gap.

[0013] In some embodiments, a plurality of insert plates surround the outer surface of the buffer device, the first movable plate and the second movable plate respectively abut against both sides of the torsion groove, the torsion spring is sleeved on the outer surface of the insert plates, and the two ends of the torsion spring abut against the first movable plate and the second movable plate respectively.

[0014] In some embodiments, the buffer device includes a buffer sleeve and two buffer blocks, the two buffer blocks being fixedly installed at both ends of the buffer sleeve, one of the buffer blocks having a slot at its outer end, and the other buffer block having a retaining ring that matches the slot fixedly installed at its outer end.

[0015] In some embodiments, a plurality of equidistant inner buffer blocks are fixedly installed inside the buffer sleeve. Both the buffer blocks and the outer ends of the buffer blocks are provided with through holes. Insert rods are fixedly installed on the inner sides of the first movable plate and the second movable plate, and the insert rods are located in the through holes.

[0016] In some embodiments, the heat dissipation assembly includes a heat sink, the outer surface of which has a plurality of heat dissipation grooves for increasing the heat dissipation area, and both sides of which have sliding grooves. The heat sink is slidably connected to both sides of the sliding grooves through the sliding grooves. The inner side of the friction lining has a plurality of mounting grooves, and the heat sink is located inside the mounting grooves.

[0017] In some embodiments, the heat sink has an internal mounting hole, and a fixed sleeve is fixedly installed inside the movable groove at the outer end of the driven plate. A slip ring is fixedly connected to one end of the fixed sleeve, and the slip ring is slidably connected to the mounting hole. A telescopic spring is provided inside the fixed sleeve, and both ends of the telescopic spring are fixedly connected to the inner wall of the fixed sleeve and the inner wall of the mounting hole, respectively. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the torsion spring structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the pre-damping component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the buffer device structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0024] Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0025] Explanation of the labels in the diagram:

[0026] 1. Friction lining;

[0027] 2. Spline sleeve;

[0028] 3. Pre-damping assembly; 31. Movable plate one; 32. Movable plate two; 33. Insert plate; 34. Insert rod; 35. Buffer device; 351. Buffer block; 352. Buffer sleeve; 353. Inner buffer block; 354. Slot; 355. Snap ring;

[0029] 4. Driven plate;

[0030] 5. Heat dissipation assembly; 51. Heat sink; 52. Slide groove; 53. Heat dissipation channel; 54. Fixing sleeve; 55. Mounting hole; 56. Telescopic spring; 57. Slip ring;

[0031] 6. Torsion spring;

[0032] 7. Mounting slot;

[0033] 8. Movable slot;

[0034] 9. Drive disk. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1-7 The silent pre-damping clutch driven plate includes a driven plate 4, friction linings 1 are fixedly installed on both sides of the driven plate 4, a spline sleeve 2 is installed on the inner side of the driven plate 4, a drive plate 9 is fixedly installed on the outer surface of the spline sleeve 2, multiple torsion grooves are opened on the inner side of the driven plate 4, and pre-damping components 3 are installed inside the multiple torsion grooves. Multiple movable grooves 8 are opened on the outer edge of the driven plate 4, and heat dissipation components 5 are provided inside the multiple movable grooves 8. The pre-damping component 3 includes a movable plate 31 and a movable plate 32. Multiple buffer devices 35 are provided between the movable plate 31 and the movable plate 32, and a torsion spring 6 is provided between the movable plate 31 and the movable plate 32. The buffer devices 35 and the torsion spring 6 cooperate to form a double buffer.

[0037] The device in this solution is part of an automotive clutch, mainly used to connect to the flywheel on the engine and transmit power to the gearbox. Friction linings 1 are installed on both sides of the driven plate 4. The friction linings 1 are usually made of high-temperature resistant, high-friction coefficient materials such as asbestos-based, ceramic, or organic materials, and directly contact the flywheel and pressure plate, transmitting power through friction. A spline sleeve 2 is installed at the center of the driven plate 4, and a drive plate 9 is fixed to the outer end of the spline sleeve 2. The spline sleeve 2 is mainly connected to the input spline shaft of the gearbox, while the driven plate 4 is used to support the friction linings 1 and transmit torque. The driven plate 4 transmits the engine power to the pre-damping assembly 3 and the torsion spring 6 through the friction of the friction linings 1. After being filtered by the pre-damping assembly 3 and the torsion spring 6, the power is transmitted to the spline sleeve 2 through the drive plate 9, thereby driving the input spline shaft of the gearbox to rotate.

[0038] Multiple torsion grooves are formed on the inner side of the driven disc 4, and the pre-damping assembly 3 is installed in the torsion grooves. This solution differs from the traditional method of using only torsion spring 6 to absorb the torsional vibration of the engine. The torsion spring 6 is fitted around the pre-damping assembly 3, so that the torsion spring 6 and the pre-damping assembly 3 can work together. The pre-damping assembly 3 is mainly composed of multiple buffer devices 35. The buffer devices 35 are made of rubber. The torsion spring 6 can absorb high-frequency vibrations such as engine ignition pulses, and quickly absorb and release energy. The buffer devices 35 can absorb low-frequency vibrations at engine idling or low speed through the damping characteristics of rubber. Thus, the pre-damping assembly 3 can reduce noise and achieve the effect of pre-damping, improving the comfort of driving at low speeds.

[0039] Meanwhile, multiple movable grooves 8 are opened on the outer edge of the driven disk 4, and multiple mounting grooves 7 are also opened on the inner side of the friction lining 1. The mounting grooves 7 and movable grooves 8 are the same, both for installing the heat dissipation component 5. The mounting grooves 7 and movable grooves 8 are in the same position, so that the heat dissipation component 5 can be located in both the mounting grooves 7 and movable grooves 8 at the same time, that is, at the edge between the two friction linings 1. When the driven disk comes into contact with the flywheel on the engine and is driven to rotate, heat will be generated due to friction. At this time, the centrifugal force can throw the heat dissipation fins 51 outward, thereby increasing the contact area between the driven disk and the outside, thereby increasing its heat dissipation effect.

[0040] Please see Figure 3 and Figure 4 Multiple ring-shaped insert plates 33 are fixedly installed on the outer ends of movable plate 1 31 and movable plate 2 32. The insert plates 33 on movable plate 1 31 and the insert plates 33 on movable plate 2 32 can be inserted into each other in the gap.

[0041] Multiple insert plates 33 surround the outer surface of the buffer device 35. Movable plate 1 31 and movable plate 2 32 abut against both sides of the torsion groove. Torsion spring 6 is sleeved on the outer surface of the insert plates 33, and the two ends of the torsion spring 6 abut against movable plate 1 31 and movable plate 2 32 respectively.

[0042] In this design, multiple buffer devices 35 are installed between movable plate 1 31 and movable plate 2 32. Multiple insert plates 33 are fixed on the side of movable plate 1 31 and movable plate 2 32 that are close to each other. Each insert plate 33 is equidistant from the others, so that the insert plates 33 on movable plate 1 31 and movable plate 2 32 can be locked into the gap between them. The buffer device 35 located between movable plate 1 31 and movable plate 2 32 can be compressed. At the same time, the torsion spring 6 is also a cylinder formed by multiple insert plates 33. The two ends of the torsion spring 6 abut against the outer edges of movable plate 1 31 and movable plate 2 32. By installing movable plate 1 31 and movable plate 2 32 in the torsion groove on the driven plate 4, the pre-damping component 3 and the torsion spring 6 can be used together. High-frequency vibrations such as engine ignition pulses are absorbed by the torsion spring 6, while low-frequency vibrations such as idling vibrations are absorbed by the pre-damping component 3. When shifting shock occurs, the two work together to reduce the jerking sensation. At the same time, the rubber can also suppress noise.

[0043] Please see Figure 5 The buffer device 35 includes a buffer sleeve 352 and two buffer blocks 351. The two buffer blocks 351 are fixedly installed at both ends of the buffer sleeve 352. One buffer block 351 has a slot 354 at its outer end, and the other buffer block 351 has a retaining ring 355 that matches the slot 354 fixedly installed at its outer end.

[0044] Multiple equidistant inner buffer blocks 353 are fixedly installed inside the buffer sleeve 352. Both the buffer block 351 and the outer end of the buffer block 351 are provided with through holes. Insert rods 34 are fixedly installed on the inner side of the movable plate 1 31 and the movable plate 2 32. The insert rods 34 are located in the through holes.

[0045] The buffer device 35 in this solution is mainly used for buffering and reducing noise after compression. The buffer device 35 is mainly composed of two buffer blocks 351 and a buffer sleeve 352. The two buffer blocks 351 are fixed at both ends of the buffer sleeve 352. A retaining ring 355 is fixed on the two buffer blocks 351, and a retaining groove 354 is opened. Through the cooperation of the retaining groove 354 and the retaining ring 355, when multiple buffer devices 35 are stacked together, the retaining ring 355 can be inserted into the retaining groove 354 to form a connection. Multiple inner buffer blocks 353 are also fixed inside the buffer sleeve 352. There is a gap between each inner buffer block 353. At the same time, through holes are provided on the buffer blocks 351 and the inner buffer blocks 353. Insert rods 34 are also fixed on the movable plate 1 31 and the movable plate 2 32. Inserting the insert rods 34 into the through holes can increase the stability of multiple buffer devices 35 installed between the movable plate 1 31 and the movable plate 2 32.

[0046] When the buffer device 35 is squeezed by the first movable plate 31 and the second movable plate 32, the buffer blocks 351 at both ends will first squeeze the buffer sleeve 352 inward. At this time, the multiple inner buffer blocks 353 inside will deform and squeeze each other to buffer the impact force. When the torsional vibration is too large, the first movable plate 31 and the second movable plate 32 will simultaneously compress the torsion spring 6 to buffer the high-frequency vibration, so that the torsion spring 6 and the pre-damping assembly 3 can work together.

[0047] Please see Figure 6 and Figure 7 The heat dissipation component 5 includes a heat sink 51. The outer surface of the heat sink 51 is provided with multiple heat dissipation grooves 53 for increasing the heat dissipation area. Both sides of the heat sink 51 are provided with sliding grooves 52. The heat sink 51 is slidably connected to both sides of the movable groove 8 through the sliding grooves 52. Multiple mounting grooves 7 are provided on the inner side of the friction liner 1. The heat sink 51 is located inside the mounting grooves 7.

[0048] The heat sink 51 has an internal mounting hole 55. A fixed sleeve 54 is fixedly installed inside the movable groove 8 at the outer end of the driven plate 4. A slip ring 57 is fixedly connected to one end of the fixed sleeve 54. The slip ring 57 is slidably connected to the mounting hole 55. A telescopic spring 56 is provided inside the fixed sleeve 54. The two ends of the telescopic spring 56 are fixedly connected to the inner wall of the fixed sleeve 54 and the inner wall of the mounting hole 55, respectively.

[0049] The heat dissipation component 5 in this design is mainly used to enhance heat dissipation for the friction lining 1 and the driven disk 4. The heat sink 51 is installed in the mounting groove 7 and movable groove 8 on the friction lining 1 and the driven disk 4. Sliding grooves 52 are formed on both sides of the heat sink 51. Since the length of the movable groove 8 is less than that of the heat sink 51 and the mounting groove 7, the heat sink 51 can slide and connect with the two side edges of the movable groove 8 through the sliding groove 52; that is, the two side edges of the movable groove 8 are inserted into the sliding groove 52. Multiple heat dissipation grooves 53 are formed on both the upper and lower surfaces of the heat sink 51 to increase its surface area and thus its heat dissipation area.

[0050] An installation hole 55 is provided inside the heat sink 51. A fixing sleeve 54 is fixed to the inner side of the movable groove 8, that is, the driven plate 4. The fixing sleeve 54 is hollow inside. A slip ring 57 is fixed to the other end of the fixing sleeve 54. The slip ring 57 is slidably connected to the inner wall of the installation hole 55 and also serves as a limit to prevent the fixing sleeve 54 from detaching from the interior of the installation hole 55. A telescopic spring 56 is installed inside the fixing sleeve 54. The two ends of the telescopic spring 56 are fixedly connected to the interior of the fixing sleeve 54 and the side wall of the installation hole 55, respectively. It also serves as a limit to pull the fixing sleeve 54 and the heat sink 51, so that the heat sink 51 is not detached from the fixing sleeve 54.

[0051] When the driven disc comes into contact with the flywheel of the engine, its friction lining 1 and driven disc 4 will also rotate. At this time, the centrifugal force will throw the heat sink 51 out, so that the heat sink 51 comes into contact with the outside air, thereby improving its heat dissipation effect. When it stops rotating, the force of the extension spring 56 can pull the heat sink 51 back to its original position. The heat dissipation effect of the friction lining 1 and driven disc 4 can be improved through the heat dissipation assembly 5.

[0052] Working principle: When the device in this solution comes into contact with the engine flywheel and starts to work, high-frequency vibrations such as engine ignition pulses are absorbed by the torsion spring 6, while low-frequency vibrations such as idling vibrations are absorbed by the pre-damping component 3. When the buffer device 35 is squeezed by the first movable plate 31 and the second movable plate 32, the buffer blocks 351 at both ends will first squeeze the buffer sleeve 352 inward. At this time, the multiple inner buffer blocks 353 inside will deform and squeeze each other to buffer. When shifting gears, the two work together to reduce the feeling of jerking.

[0053] At the same time, the friction pad 1 and the driven disk 4 will also rotate. At this time, the centrifugal force will throw the heat sink 51 out, so that the heat sink 51 comes into contact with the outside air, thereby improving its heat dissipation effect.

Claims

1. A silent pre-damping clutch driven plate, including a driven plate (4), on both sides of the driven plate (4) friction linings (1) are fixedly installed, a spline sleeve (2) is installed on the inner side of the driven plate (4), and a drive plate (9) is fixedly installed on the outer surface of the spline sleeve (2). characterized in that The driven disk (4) has multiple torsion grooves on its inner side, and a pre-damping component (3) is installed inside each of the multiple torsion grooves. The driven disk (4) has multiple movable grooves (8) on its outer edge, and a heat dissipation component (5) is provided inside each of the multiple movable grooves (8). The pre-damping assembly (3) includes a first movable plate (31) and a second movable plate (32). Multiple buffer devices (35) are provided between the first movable plate (31) and the second movable plate (32), and a torsion spring (6) is provided between the first movable plate (31) and the second movable plate (32). The buffer devices (35) and the torsion spring (6) cooperate to form a double buffer.

2. The driven plate of the silent pre-damping clutch according to claim 1, characterized in that: Multiple ring-shaped insert plates (33) are fixedly installed on the outer ends of the first movable plate (31) and the second movable plate (32). The insert plates (33) on the first movable plate (31) and the insert plates (33) on the second movable plate (32) can be inserted into each other in the gap.

3. The driven plate of the silent pre-damping clutch according to claim 2, characterized in that: Multiple insert plates (33) surround the outer surface of the buffer device (35), the first movable plate (31) and the second movable plate (32) respectively abut against the two sides of the torsion groove, the torsion spring (6) is sleeved on the outer surface of the insert plate (33), and the two ends of the torsion spring (6) abut against the first movable plate (31) and the second movable plate (32) respectively.

4. The driven plate of the silent pre-damping clutch according to claim 3, characterized in that: The buffer device (35) includes a buffer sleeve (352) and two buffer blocks (351). The two buffer blocks (351) are fixedly installed at both ends of the buffer sleeve (352). One of the buffer blocks (351) has a slot (354) at its outer end, and the other buffer block (351) has a retaining ring (355) that is compatible with the slot (354) fixedly installed at its outer end.

5. The driven plate of the silent pre-damping clutch according to claim 4, characterized in that: The buffer sleeve (352) has multiple equidistant inner buffer blocks (353) fixedly installed inside. The outer ends of the buffer blocks (351) are all provided with through holes. The inner sides of the movable plate one (31) and the movable plate two (32) are all fixedly installed with insert rods (34), and the insert rods (34) are located in the through holes.

6. The driven plate of the silent pre-damping clutch according to claim 1, characterized in that: The heat dissipation assembly (5) includes a heat sink (51). The outer surface of the heat sink (51) is provided with a plurality of heat dissipation grooves (53) for increasing the heat dissipation area. The heat sink (51) is provided with sliding grooves (52) on both sides. The heat sink (51) is slidably connected to both sides of the movable groove (8) through the sliding grooves (52). The friction pad (1) is provided with a plurality of mounting grooves (7) on its inner side. The heat sink (51) is located inside the mounting grooves (7).

7. The silent pre-damped clutch driven plate according to claim 6, characterized in that: The heat sink (51) has an installation hole (55) inside. A fixed sleeve (54) is fixedly installed inside the movable groove (8) at the outer end of the driven plate (4). A slip ring (57) is fixedly connected to one end of the fixed sleeve (54). The slip ring (57) is slidably connected to the installation hole (55). A telescopic spring (56) is provided inside the fixed sleeve (54). The two ends of the telescopic spring (56) are fixedly connected to the inner wall of the fixed sleeve (54) and the inner wall of the installation hole (55) respectively.

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