Clutch driven disc

Abstract

The invention relates to the technical field of clutches, and provides a clutch driven disc which comprises a disc hub, a transmission disc, a friction plate, a first main vibration reduction cover plate, a second main vibration reduction cover plate, a first damping fin, a second damping fin, a disc spring, a main vibration reduction spring and a spring seat. A plurality of first windows are formed in the circumferential direction of the transmission disc, a plurality of second windows are formed in the circumferential direction of the main damping cover plate, the spring seats abut against the two sides of the first windows and the two sides of the second windows, and the main damping spring is installed between the two spring seats; the middle portions of the spring seats are arranged on the first window and the second window in a protruding mode, gaps are formed between the two sides of the spring seats and the first window and between the two sides of the spring seats and the second window, and under the condition that the main damping spring is compressed, one of the two spring seats can swing relative to the transmission disc. And the other one of the two spring seats can swing relative to the first main damping cover plate and the second main damping cover plate so as to adjust the stress of the main damping spring and ensure the linear compression of the main damping spring. According to the invention, linear compression of the main damper spring is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of clutches, and in particular to a clutch driven disc. Background Art

[0002] As the horsepower of heavy truck engines continues to increase, the demand for the ultimate damping torque of the clutch driven plate is getting higher and higher. At present, as the transmission plate rotates, the existing main damping spring is bent and compressed during the torsion process. Due to the different forces on the inside and outside of the main damping spring, the spring is unevenly stressed, resulting in stress concentration, which is easy to cause the spring to break. Summary of the invention

[0003] The invention provides a clutch driven disc, which is used to solve the problem in the prior art that the clutch driven disc is prone to spring breakage due to uneven spring force.

[0004] The present invention provides a clutch driven disc, comprising: a disc hub, a transmission disc, a friction plate, a first main vibration-damping cover plate, a second main vibration-damping cover plate, a first damping plate, a second damping plate, a disc spring, a main vibration-damping spring and a spring seat; The transmission disc is arranged on the disc hub, and a side of the transmission disc away from the disc hub is connected to the friction plate; The first main vibration damping cover plate and the second main vibration damping cover plate are respectively pressed on the transmission plate from both sides of the transmission plate, the first damping plate is sandwiched between the first main vibration damping cover plate and the transmission plate, the second damping plate is sandwiched between the second main vibration damping cover plate and the transmission plate, and the disc spring is disposed between the first damping plate and the first main vibration damping cover plate or between the second damping plate and the second main vibration damping cover plate; A plurality of first windows are arranged on the circumference of the transmission plate, a plurality of second windows are arranged on the circumference of the main damping cover plate, the plurality of first windows are arranged in one-to-one correspondence with the plurality of second windows, the two spring seats are respectively arranged on both sides of the first window and the second window, and the main damping spring is installed between the two spring seats; The middle part of the spring seat is protruded from the first window and the second window, and a gap is formed between the two sides of the spring seat and the first window and the second window. When the main damping spring is compressed, one of the two spring seats can swing relative to the transmission plate, and the other of the two spring seats can swing relative to the first main damping cover plate and the second main damping cover plate to adjust the force of the main damping spring to ensure linear compression of the main damping spring.

[0005] According to a clutch driven plate provided by the present invention, the first window is provided with a first limiting groove; The spring seat comprises a seat body and a first limit platform; the first limit platform is arranged on a side of the seat body facing the transmission disc; The first limiting platform is inserted into the first limiting groove; The height of the first limiting platform is greater than the groove depth of the first limiting groove, and the outer contour of the first limiting platform is smaller than the groove distance of the first limiting groove.

[0006] According to a clutch driven plate provided by the present invention, the second window is provided with a second limiting groove; The spring seat further includes a second limit platform and a third limit platform; the second limit platform and the third limit platform are respectively arranged on both sides of the first limit platform, and the second limit platform and the third limit platform are respectively inserted into the second limit grooves of the first main vibration damping cover plate and the second main vibration damping cover plate; The height of the first limiting platform is greater than the heights of the second limiting platform and the third limiting platform.

[0007] According to a clutch driven plate provided by the present invention, the first limiting platform, the second limiting platform and the third limiting platform all have arc surfaces; the first limiting groove and the second limiting groove also have arc surfaces; The arc radius of the first limiting platform is smaller than the arc radius of the first limiting groove, and the width of the first limiting platform is smaller than the width of the first limiting groove.

[0008] According to a clutch driven plate provided by the present invention, the spring seat is further provided with a limit strip; There are two limit bars, which are arranged in parallel and clamped on both sides of the first limit platform, and the two limit bars form a limit gap; The side of the first window having the first limiting groove is clamped in the two limiting gaps.

[0009] According to a clutch driven plate provided by the present invention, the disc spring is provided with two, namely a first disc spring and a second disc spring; The first disc spring is sandwiched between the first damping plate and the first main vibration-damping cover plate, and the second disc spring is sandwiched between the second damping plate and the second main vibration-damping cover plate.

[0010] According to a clutch driven plate provided by the present invention, the first disc spring and the second disc spring are both provided with a preload, the preload of the first disc spring is set in a range where the compression amount increases with the clamping force, and the preload of the second disc spring is set in a range where the compression amount decreases with the clamping force.

[0011] A clutch driven disc provided according to the present invention further includes: an idle vibration reduction mechanism; The idle vibration reduction mechanism is arranged on the main vibration reduction cover plate and is connected to the disc hub.

[0012] According to a clutch driven plate provided by the present invention, the main damping spring comprises an outer spring, a middle spring and an inner spring; The outer spring, the middle spring and the inner spring are sequentially sleeved from the outside to the inside, and both ends of the outer spring, the middle spring and the inner spring are installed on the spring seat.

[0013] According to a clutch driven plate provided by the present invention, the spring seat further comprises a first mounting seat, a second mounting seat and a third mounting seat; The first mounting seat is arranged on a side of the spring seat away from the transmission plate, the first mounting seat, the second mounting seat and the third mounting seat are connected in sequence, the centers of the first mounting seat, the second mounting seat and the third mounting seat coincide, and the radii of the first mounting seat, the second mounting seat and the third mounting seat decrease in sequence; The first mounting seat is used to mount the outer spring, the second mounting seat is used to mount the middle spring, and the third mounting seat is used to mount the inner spring.

[0014] The clutch driven plate provided by the present invention provides a first main vibration damping cover plate and a second main vibration damping cover plate on both sides of a transmission plate, and provides a first damping plate, a second damping plate and a disc spring between the transmission plate and the first main vibration damping cover plate and the second main vibration damping cover plate to provide position compensation for the first damping plate and the second damping plate, and the middle part of the spring seat is convexly arranged on the first window and the second window, so that a gap is formed between the two sides of the spring seat and the first window and the second window, so that when the main vibration damping spring is compressed, the spring seat on one side can swing relative to the transmission plate with the middle part of the spring seat as a fulcrum, and the other of the two spring seats will also undergo corresponding adaptive adjustment on the first main vibration damping cover plate and the second main vibration damping cover plate, so as to adaptively adjust the compression force on the main vibration damping spring, avoid stress concentration, ensure the linear compression of the main vibration damping spring, and avoid the breakage of the main vibration damping spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the main structure of the clutch driven disc provided by the present invention.

[0017] Figure 2 The present invention provides Figure 1 AA section view.

[0018] Figure 3 It is a schematic diagram of the gap of the main damping spring provided by the present invention in a small compression state.

[0019] Figure 4 It is a schematic diagram of the gap of the main damping spring provided by the present invention in a large compression state.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the spring seat provided by the present invention.

[0021] Figure 6 It is a left-side structural schematic diagram of the spring seat provided by the present invention.

[0022] Figure 7 It is a curve diagram of the compression displacement of the disc spring and the load it is subjected to.

[0023] Reference numerals: 1. Hub; 2. Transmission plate; 21. First limiting groove; 3. Spring seat; 31. Seat body; 32. First limit platform; 33. Second limit platform; 34. Third limit platform; 35. Limit strip; 36. First mounting seat; 37. Second mounting seat; 38. Third mounting seat; 4. First main vibration reduction cover plate; 41. Second limiting groove; 5. Second main vibration reduction cover plate; 6. First damping plate; 7. Second damping plate; 8. First disc spring; 9. Second disc spring; 10. Main damping spring; 101. Outer spring; 102. Middle spring; 103. Inner spring; 11. Friction plate; 12. Idle vibration reduction mechanism; T, first gap; S, second gap. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Combine the following Figure 1-Figure 7 , the clutch driven disc provided in the embodiment of the present invention is described in detail through specific embodiments and application scenarios.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment provides a clutch driven plate, including: a disc hub 1, a transmission plate 2, a friction plate 11, a first main vibration damping cover plate 4, a second main vibration damping cover plate 5, a first damping plate 6, a second damping plate 7, a disc spring, a main vibration damping spring 10 and a spring seat 3.

[0027] The transmission disc 2 is arranged on the disc hub 1 , and the side of the transmission disc 2 away from the disc hub 1 is connected to the friction plate 11 .

[0028] The first main vibration damping cover plate 4 and the second main vibration damping cover plate 5 are respectively pressed onto the transmission plate 2 from both sides of the transmission plate 2, the first damping plate 6 is clamped between the first main vibration damping cover plate 4 and the transmission plate 2, the second damping plate 7 is clamped between the second main vibration damping cover plate 5 and the transmission plate 2, and the disc spring is arranged between the first damping plate 6 or the second damping plate 7 and the transmission plate 2.

[0029] A plurality of first windows are provided on the circumference of the transmission disc 2, and a plurality of second windows are provided on the circumference of the main damping cover plate. The plurality of first windows and the plurality of second windows are arranged in one-to-one correspondence. Two spring seats 3 are respectively disposed on both sides of the first window and the second window, and the main damping spring 10 is installed between the two spring seats 3.

[0030] The middle part of the spring seat 3 protrudes from the first window, and a gap is formed between the two sides of the spring seat 3 and the first window. When the main damper spring 10 is compressed, the spring seat 3 can swing relative to the transmission plate 2 to adjust the force of the main damper spring 10 to ensure the linear compression of the main damper spring 10.

[0031] It can be understood that the transmission disc 2 is connected to the friction plate 11, and the engine transmits power to the transmission disc 2 through the friction plate 11. When the transmission disc 2 rotates, the power is transmitted to the main vibration damping cover plate through the main vibration damping spring 10. The main vibration damping cover plate is rigidly connected to the disc hub 1 through rivets. After the main vibration damping spring 10 is compressed to a certain extent, the main vibration damping cover plate and the disc hub 1 rotate synchronously, and the power is transmitted to the disc hub 1. The disc hub 1 is connected to the transmission input shaft through a spline, and finally the power is transmitted to the transmission.

[0032] In the process from being compressed to being fully compressed, the main damper spring 10 rotates a fixed angle under the action of a limit, and the main damper spring 10 is not compressed, that is, the main damper spring 10 is not compressed to a state where the circles are in close contact. The deformation of the main damper spring 10 is used to buffer the impact and absorb the vibration and torque of the engine. After the main damper spring 10 is fully compressed, the main damper cover plate is rigidly synchronized with the transmission plate 2 to directly transmit power.

[0033] The first main vibration-damping cover plate 4 and the second main vibration-damping cover plate 5 are arranged on both sides of the transmission plate 2. For a heavy-duty truck engine with large torque, the arrangement of the two main vibration-damping cover plates can effectively absorb and disperse vibrations and provide smoother power transmission.

[0034] The first damping plate 6 and the second damping plate 7 consume the energy of torsional vibration through friction, and generate friction with the transmission plate 2 and the disc spring, further consuming the energy absorbed by the main damping spring 10. After the first damping plate 6 and the second damping plate 7 are worn, the disc spring can adjust the distance between the damping plate and the main damping cover plate and provide preload force to ensure the close contact between the damping plate and the main damping cover plate to avoid looseness and abnormal noise.

[0035] The main damping spring 10 and the spring seats 3 on both sides are arranged in the first window and the second window, and the first window and the second window are arranged correspondingly. The spring seat 3 is used to support and position the main damping spring 10, and the elastic force of the main damping spring 10 makes the spring seats 3 on both sides abut against the inner sides of the first window and the second window.

[0036] When the transmission disc 2 rotates and compresses the main damping spring 10, since the first main damping cover plate 4 and the second main damping cover plate 5 do not rotate at the same time, the main damping spring 10 absorbs the rotation force of the transmission disc 2, and the first main damping cover plate 4 and the second main damping cover plate 5 remain relatively still. The different movement distances of the inner and outer sides of the main damping spring 10 result in different forces on the inner and outer sides of the main damping spring 10. Since the middle part of the spring seat 3 is convexly arranged on the inner side of the first window, a gap is formed between the two sides of the spring seat 3 and the first window, that is, the spring seat 3 is not tightly fitted with the transmission disc 2. The middle part of the spring seat 3 is propped up relative to the first window, and the two sides of the spring seat 3 can swing relative to the first window, so that when the main damping spring 10 is subjected to different forces, the middle part of the spring seat 3 can be used as a fulcrum to perform adaptive adjustment relative to the gaps on both sides. The other of the two spring seats 3 will also undergo corresponding adaptive adjustment on the first main damping cover plate 4 and the second main damping cover plate 5, restoring the natural characteristics of the main damping spring 10, thereby ensuring the linear compression and uniform force of the main damping spring 10.

[0037] The clutch driven plate provided by the present invention provides a first main vibration damping cover plate 4 and a second main vibration damping cover plate 5 on both sides of the transmission plate 2, and provides a first damping plate 6, a second damping plate 7 and a disc spring between the transmission plate 2 and the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5, so as to provide position compensation for the first damping plate 6 and the second damping plate 7, and the middle part of the spring seat 3 is convexly arranged on the first window, so that a gap is formed between the two sides of the spring seat 3 and the first window, so that the main vibration damping spring 10 can swing relative to the transmission plate 2 with the middle part of the spring seat 3 as a fulcrum when compressed, and the other of the two spring seats 3 will also undergo corresponding adaptive adjustment on the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5, so as to adaptively adjust the compression force on the main vibration damping spring 10, avoid stress concentration, ensure the linear compression of the main vibration damping spring 10, and avoid the breakage of the main vibration damping spring 10.

[0038] like Figure 3 , Figure 4 and Figure 5 As shown, the first window of this embodiment is provided with a first limiting groove 21.

[0039] The spring seat 3 includes a seat body 31 and a first limiting platform 32 ; the first limiting platform 32 is arranged on a side of the seat body 31 facing the transmission plate 2 .

[0040] The first limiting platform 32 is inserted into the first limiting groove 21 .

[0041] The height of the first limiting platform 32 is greater than the groove depth of the first limiting groove 21 , and the outer contour of the first limiting platform 32 is smaller than the groove pitch of the first limiting groove 21 .

[0042] It is understandable that the first limit platform 32 is arranged in the middle of the seat body 31, and the first limit platform 32 protrudes from the seat body 31, so that when the spring seat 3 and the transmission plate 2 are installed, the first limit platform 32 can serve as a fulcrum of the seat body 31, allowing the seat body 31 to swing relative to the transmission plate 2.

[0043] Since the height of the first limiting platform 32 is greater than the groove depth of the first limiting groove 21, the first limiting platform 32 extends out of the first limiting groove 21, and the outer contour of the first limiting platform 32 is smaller than the groove distance of the first limiting groove 21, which facilitates the movement of the first limiting platform 32 in the first limiting groove 21. The first limiting platform 32 is not tightly abutted against the first limiting groove 21, and the first limiting platform 32 is only in line contact with the first limiting groove 21. The seat body 31 can flexibly swing relative to the first limiting groove 21, which provides convenience for the adaptive adjustment of the main damping spring 10.

[0044] like Figure 4 and Figure 5 As shown, the second window of this embodiment is provided with a second limiting groove 41.

[0045] The spring seat 3 also includes a second limit platform 33 and a third limit platform 34; the second limit platform 33 and the third limit platform 34 are respectively arranged on both sides of the first limit platform 32, and the second limit platform 33 and the third limit platform 34 are respectively inserted into the second limit groove 41 of the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5.

[0046] The height of the first limiting platform 32 is greater than the height of the second limiting platform 33 and the third limiting platform 34 .

[0047] It is understandable that when the transmission disc 2 has not rotated relative to the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5, the first limiting platform 32 is inserted in the first limiting groove 21, and the second limiting platform 33 and the third limiting platform 34 are respectively inserted in the two second limiting grooves 41 on both sides of the first limiting groove 21. When the transmission disc 2 rotates relative to the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5, the transmission disc 2 pushes the main vibration damping spring 10 to compress, and the spring seat 3 on one side of the main vibration damping spring 10 begins to gradually move away from the first main vibration damping cover plate 4 and the second main vibration damping cover plate 5, and the spring seat 3 on the other side of the main vibration damping spring 10 is blocked by the inner side of the other side of the second window. The height of the first limiting platform 32 is greater than the height of the second limiting platform 33 and the third limiting platform 34, which can ensure that the middle part of the spring seat 3 is the highest relative to the first limiting groove 21, and the spring seat 3 always swings relative to the transmission disc 2 with the first limiting platform 32 as the fulcrum.

[0048] The other of the two spring seats 3 will also undergo corresponding adaptive adjustment on the corresponding second limiting platform 33 and third limiting platform 34 .

[0049] like Figure 3 and Figure 4 As shown, Figure 3 The schematic diagram of the gap of the main damping spring 10 in a small compression state is that the gap of the spring seat 3 close to the center of the transmission disc 2 is the first gap T, and the gap of the spring seat 3 away from the center of the transmission disc 2 is the second gap S. When the main damping spring 10 is in a relatively small compression state, the first gap T is a small gap, and the second gap S is a large gap. The main damping spring 10 is tilted toward the side close to the center of the transmission disc 2 with the first limit platform 32 as the fulcrum to achieve adaptive adjustment and ensure the linear compression of the main damping spring 10.

[0050] Figure 4 The schematic diagram of the gap of the main damping spring 10 in a large compression state is shown in FIG. 1 . When the main damping spring 10 is in a large compression state, the first gap T is a large gap and the second gap S is a small gap. The main damping spring 10 is tilted toward the side away from the center of the transmission plate 2 with the first limit platform 32 as a fulcrum to achieve adaptive adjustment and ensure the linear compression of the main damping spring 10.

[0051] like Figure 3 , Figure 4 and Figure 5 As shown, the first limiting platform 32, the second limiting platform 33 and the third limiting platform 34 of this embodiment all have arc surfaces; the first limiting groove 21 and the second limiting groove 41 also have arc surfaces.

[0052] The arc radius of the first limiting platform 32 is smaller than the arc radius of the first limiting groove 21 , and the width of the first limiting platform 32 is smaller than the width of the first limiting groove 21 .

[0053] It is understandable that the arc surface setting of the first limit platform 32, the second limit platform 33 and the third limit platform 34, and the arc surface setting of the first limit groove 21 and the second limit groove 41, make the cooperation between the first limit platform 32 and the first limit groove 21, and the cooperation between the second limit platform 33, the third limit platform 34 and the second limit groove 41 are all smooth transition cooperation. When the main damping spring 10 is subjected to force through the spring seat 3, the contact surfaces of the transmission disc 2, the first main damping cover plate 4 and the second main damping cover plate 5 and the spring seat 3 are all smooth arc contact surfaces, and the main damping spring 10 swings more smoothly relative to the transmission disc 2 and the first main damping cover plate 4 and the second main damping cover plate 5 through the first limit platform 32, the second limit platform 33 and the third limit platform 34, thereby improving the swing stability of the transmission disc 2, the first main damping cover plate 4 and the second main damping cover plate 5 and the spring seat 3.

[0054] like Figure 5 As shown, the spring seat 3 of this embodiment is further provided with a limiting strip 35 .

[0055] Two limiting bars 35 are provided, and the two limiting bars 35 are arranged in parallel and clamped on both sides of the first limiting platform 32 , and the two limiting bars 35 form a limiting gap.

[0056] The first window has a side with the first limiting groove 21 which is clamped in the two limiting gaps.

[0057] It is understandable that the transmission disc 2 is usually a circular ring structure, and a plurality of first windows are evenly arranged along the circumference of the transmission disc 2, and the first windows have a strip-shaped structure formed on both sides of the limiting groove.

[0058] The limiting strip 35 is vertically arranged with the seat body 31, and the limiting gap formed by the two limiting strips 35 can clamp the strip structure of the first window. At the end of the spring seat 3 of the main damping spring 10 that is supported by the first main damping cover plate 4, the strip structure on the first window is constrained by the limiting gap. Since the spring seat 3 at the other end of the main damping spring 10 has a certain distance from the inner side of the first window, the constraint of the strip structure on the first window by the limiting gap can ensure that the spring seat 3 does not fall off from the first window, thereby ensuring the reliability of the compression process of the main damping spring 10.

[0059] like Figure 2 As shown, in this embodiment, there are two disc springs, namely a first disc spring 8 and a second disc spring 9.

[0060] The first disc spring 8 is sandwiched between the first damping plate 6 and the first main vibration-damping cover plate 4 , and the first disc spring 8 is sandwiched between the second damping plate 7 and the second main vibration-damping cover plate 5 .

[0061] It is understandable that after the first damping plate 6 and the second damping plate 7 are worn, the first disc spring 8 and the second disc spring 9 can provide position compensation to maintain the axial position of the transmission plate 2 unchanged. Due to the provision of double disc springs, the two disc springs can evenly distribute the torque impact, reduce the stress concentration of the main damping spring 10, and extend the service life of the main damping spring 10. For heavy truck engines with high torque and frequent start and stop, it can better adapt and improve driving comfort.

[0062] like Figure 2 and Figure 7 As shown, the first disc spring 8 and the second disc spring 9 of this embodiment are both provided with preload force. The preload force of the first disc spring 8 is set in the interval where the compression amount increases with the clamping force, and the preload force of the second disc spring 9 is set in the interval where the compression amount decreases with the clamping force.

[0063] Understandably, Figure 7 The figure shows the compression curve of the disc spring. The horizontal axis represents the compression displacement of the disc spring, and the vertical axis represents the clamping force of the disc spring. It can be seen that when the preload of the disc spring is at position 1, the preload increases with the increase of the compression displacement until it reaches the maximum value F1. If the preload is continued to be applied to the disc spring, the clamping force of the disc spring decreases from F1 to F2, and reaches the minimum value F2 at position 2.

[0064] When installing the first disc spring 8 and the second disc spring 9, different preload forces are applied to the first disc spring 8 and the second disc spring 9. Ensure that the preload force of the first disc spring 8 and the preload force of the second disc spring 9 are respectively in two different intervals of increasing and decreasing clamping force. When the clutch driven disc is working, as the first damping plate 6 and the second damping plate 7 wear, the first disc spring 8 and the second disc spring 9 are compressed, providing the first damping plate 6 and the second damping plate 7 with opposite clamping forces, ensuring that the clamping forces on both sides of the first damping plate 6 and the second damping plate 7 as a whole remain basically unchanged, thereby maintaining the stability of the overall damping.

[0065] like Figure 2 As shown, this embodiment further includes: an idle vibration reduction mechanism 12 .

[0066] The idle vibration reduction mechanism 12 is arranged on the main vibration reduction cover plate and is connected to the disc hub 1 .

[0067] It is understandable that when the engine is idling, the speed is low and vibration is likely to occur. The idle vibration reduction mechanism 12 can absorb or offset the vibration, reduce the vibration transmitted to the vehicle body, and reduce the engine running noise accordingly, thereby significantly improving the riding and driving comfort.

[0068] Optionally, the idle vibration reduction mechanism 12 may adopt a hydraulic shock absorber or a spring shock absorber.

[0069] like Figure 1As shown, the main damping spring 10 of this embodiment includes an outer spring 101 , a middle spring 102 and an inner spring 103 .

[0070] The outer spring 101 , the middle spring 102 and the inner spring 103 are sequentially sleeved from the outside to the inside, and both ends of the outer spring 101 , the middle spring 102 and the inner spring 103 are mounted on the spring seat 3 .

[0071] It is understandable that the main damping spring 10 of this embodiment is provided with three springs, which are arranged in sequence and can adapt to the large torque of a high-horsepower engine. When the transmission plate 2 is twisted relative to the main damping cover plate, the transmission plate 2 compresses the main damping spring 10, and the outer spring 101, the middle spring 102 and the inner spring 103 can absorb vibration and impact force at the same time, so that the vibration and impact of the engine can be effectively alleviated by the outer spring 101, the middle spring 102 and the inner spring 103, ensuring the stability of power transmission. The setting structure of the main damping spring 10 of this embodiment has been experimentally confirmed to have a limit torque of 5000Nm, which increases the torque of the clutch driven plate.

[0072] like Figure 6 As shown, the spring seat 3 of this embodiment further includes a first mounting seat 36 , a second mounting seat 37 and a third mounting seat 38 .

[0073] The first mounting seat 36 is arranged on the side of the spring seat 3 away from the transmission plate 2, and the first mounting seat 36, the second mounting seat 37 and the third mounting seat 38 are connected in sequence, the centers of the first mounting seat 36, the second mounting seat 37 and the third mounting seat 38 coincide, and the radii of the first mounting seat 36, the second mounting seat 37 and the third mounting seat 38 decrease in sequence.

[0074] The first mounting seat 36 is used to mount the outer spring 101 , the second mounting seat 37 is used to mount the middle spring 102 , and the third mounting seat 38 is used to mount the inner spring 103 .

[0075] It is understandable that the first mounting seat 36 is disposed on the side of the seat body 31 away from the transmission plate 2, and the first mounting seat 36, the second mounting seat 37 and the third mounting seat 38 are connected in sequence as the radius gradually decreases. The two ends of the outer spring 101 are sleeved on the first mounting seat 36, the two ends of the middle spring 102 are sleeved on the second mounting seat 37, and the two ends of the inner spring 103 are sleeved on the third mounting seat 38.

[0076] Since the outer spring 101, the middle spring 102 and the inner spring 103 are fixed on different mounting seats in sequence, the mounting heights and mounting radii of the first mounting seat 36, the second mounting seat 37 and the third mounting seat 38 relative to the seat body 31 are all different, so that the outer spring 101, the middle spring 102 and the inner spring 103 are fixed on the seat body 31 in parallel without interfering with each other. During the rotation and compression of the main damping spring 10, the outer spring 101, the middle spring 102 and the inner spring 103 are also compressed along parallel paths, and a certain interval is maintained between each other, and no mutual friction occurs, thereby ensuring the reliability of the use of the outer spring 101, the middle spring 102 and the inner spring 103.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clutch driven disc, characterized in that: include: Disc hub, transmission disc, friction plate, first main vibration damping cover plate, second main vibration damping cover plate, first damping plate, second damping plate, disc spring, main vibration damping spring and spring seat; The transmission disc is arranged on the disc hub, and a side of the transmission disc away from the disc hub is connected to the friction plate; The first main vibration damping cover plate and the second main vibration damping cover plate are respectively pressed on the transmission plate from both sides of the transmission plate, the first damping plate is sandwiched between the first main vibration damping cover plate and the transmission plate, the second damping plate is sandwiched between the second main vibration damping cover plate and the transmission plate, and the disc spring is disposed between the first damping plate and the first main vibration damping cover plate or between the second damping plate and the second main vibration damping cover plate; A plurality of first windows are arranged on the circumference of the transmission plate, a plurality of second windows are arranged on the circumference of the main damping cover plate, the plurality of first windows are arranged in one-to-one correspondence with the plurality of second windows, the two spring seats are respectively arranged on both sides of the first window and the second window, and the main damping spring is installed between the two spring seats; The middle part of the spring seat is protruded from the first window and the second window, and a gap is formed between the two sides of the spring seat and the first window and the second window. When the main damping spring is compressed, one of the two spring seats can swing relative to the transmission plate, and the other of the two spring seats can swing relative to the first main damping cover plate and the second main damping cover plate to adjust the force of the main damping spring to ensure linear compression of the main damping spring.

2. The clutch driven plate according to claim 1, characterized in that: The first window is provided with a first limiting groove; The spring seat comprises a seat body and a first limit platform; the first limit platform is arranged on a side of the seat body facing the transmission disc; The first limiting platform is inserted into the first limiting groove; The height of the first limiting platform is greater than the groove depth of the first limiting groove, and the outer contour of the first limiting platform is smaller than the groove distance of the first limiting groove.

3. The clutch driven plate according to claim 2, characterized in that: The second window is provided with a second limiting groove; The spring seat further includes a second limit platform and a third limit platform; the second limit platform and the third limit platform are respectively arranged on both sides of the first limit platform, and the second limit platform and the third limit platform are respectively inserted into the second limit grooves of the first main vibration damping cover plate and the second main vibration damping cover plate; The height of the first limiting platform is greater than the heights of the second limiting platform and the third limiting platform.

4. The clutch driven plate according to claim 3, characterized in that: The first limiting platform, the second limiting platform and the third limiting platform all have arc surfaces; the first limiting groove and the second limiting groove also have arc surfaces; The arc radius of the first limiting platform is smaller than the arc radius of the first limiting groove, and the width of the first limiting platform is smaller than the width of the first limiting groove.

5. The clutch driven plate according to claim 2, characterized in that: The spring seat is also provided with a limiting strip; There are two limit bars, which are arranged in parallel and clamped on both sides of the first limit platform, and the two limit bars form a limit gap; The side of the first window having the first limiting groove is clamped in the two limiting gaps.

6. The clutch driven plate according to claim 1, characterized in that: The disc springs are provided with two, namely a first disc spring and a second disc spring; The first disc spring is sandwiched between the first damping plate and the first main vibration-damping cover plate, and the second disc spring is sandwiched between the second damping plate and the second main vibration-damping cover plate.

7. The clutch driven plate according to claim 6, characterized in that: The first disc spring and the second disc spring are both provided with a preload. The preload of the first disc spring is provided in a range where the compression amount increases with the pressing force, and the preload of the second disc spring is provided in a range where the compression amount decreases with the pressing force.

8. The clutch disc according to claim 1, characterized in that: Also includes: Idle vibration reduction mechanism; The idle vibration reduction mechanism is arranged on the main vibration reduction cover plate and is connected to the disc hub.

9. The clutch driven plate according to claim 1, characterized in that: The main damping spring comprises an outer spring, a middle spring and an inner spring; The outer spring, the middle spring and the inner spring are sequentially sleeved from the outside to the inside, and both ends of the outer spring, the middle spring and the inner spring are installed on the spring seat.

10. The clutch driven plate according to claim 9, characterized in that: The spring seat also includes a first mounting seat, a second mounting seat and a third mounting seat; The first mounting seat is arranged on a side of the spring seat away from the transmission plate, the first mounting seat, the second mounting seat and the third mounting seat are connected in sequence, the centers of the first mounting seat, the second mounting seat and the third mounting seat coincide, and the radii of the first mounting seat, the second mounting seat and the third mounting seat decrease in sequence; The first mounting seat is used to mount the outer spring, the second mounting seat is used to mount the middle spring, and the third mounting seat is used to mount the inner spring.

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