Clutch made of double-power copper substrate material

Abstract

The utility model relates to the field of clutches, in particular to a dual-power clutch made of copper substrate materials. The clutch aims at solving the technical problems that in the prior art, the structure is single, and the product failure rate is high. The utility model discloses a dual-power clutch made of a copper substrate material. The dual-power clutch comprises a pressure plate A, a diaphragm spring, a cover, a torsion damper A made of a copper-based friction material and a pressure plate B, the torsional rigidity of the joint part of the engine crankshaft and the transmission system is reduced, so that the torsional vibration inherent frequency of the transmission system is reduced; torsional damping of a transmission system is increased, the amplitude corresponding to torsional resonance is restrained, and transient torsional vibration generated by impact is attenuated; torsional vibration of a clutch and a transmission shaft system at the total speed of a power transmission assembly is controlled, and idling noise of a transmission and torsional vibration and noise of a main speed reducer and the transmission are eliminated.

Description

Technical Field

[0001] The utility model relates to the field of clutches, in particular to a double-power copper-based plate material clutch. Background Art

[0002] The existing push-type diaphragm spring cover assembly only provides compression force support during the transmission of engine torque to ensure the function of transmitting torque. The driven plate assembly transmits the engine torque to the transmission system. The cover assembly does not transmit the engine torque during the synchronous rotation with the flywheel, thereby causing mechanical energy loss.

[0003] Since the ordinary dry friction clutch converts the engine torque into friction torque and transmits it to the gearbox only through the driven plate assembly, the power output source depends only on the friction torque transmitted by the driven plate assembly. Friction torque = friction force x friction torque, friction force = positive clamping force x friction coefficient, so friction torque = positive clamping force x friction coefficient x friction torque. The cover assembly provides the positive clamping force required for the friction torque during operation. The friction coefficient is an inherent physical property of the friction material. The friction torque is related to the area of ​​the friction plate of the driven plate assembly. Therefore, the cover assembly has a single role in operation. The engine torque is only transmitted partially by the driven plate assembly. Part of the torque output by the engine needs to drive the synchronous rotation of the cover assembly and the flywheel, and this part of the torque is lost. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a dual-power copper-based plate material clutch, which aims to solve the technical problems of the prior art that the structure is relatively simple and the product failure rate is high.

[0005] The technical solution of the utility model is: a dual-power copper-based plate material clutch, including a pressure plate A, a diaphragm spring, a cover, a copper-based friction material torsion damper A, a pressure plate B, a copper-based friction material torsion damper B, a supporting ring, a supporting rivet, a positioning rivet, and a transmission plate; the diaphragm spring and the cover are sequentially installed at the front end of the pressure plate A; the pressure plate B is arranged at the rear end of the pressure plate A; the copper-based friction material torsion damper A is installed between the pressure plate B and the pressure plate A; the copper-based friction material torsion damper B is installed at the rear end of the pressure plate B.

[0006] Preferably, 1. When two copper-based friction material torsional vibration dampers A and copper-based friction material torsional vibration dampers A work simultaneously, the friction torque exerted on the middle pressure plate B and the first copper substrate and the second copper substrate on both sides is first transmitted to the driven plate body and the damping plate, and then transmitted to the disc hub through several primary damper springs and secondary damper springs. Due to the buffering effect of the damper springs, the impact on the transmission system is greatly reduced.

[0007] The torsional vibration in the transmission system will cause the driven disc hub to swing back and forth relative to the driven disc body and the damper disc, and the energy of the torsional vibration will be consumed by the friction of the damping plate sandwiched between them, so that the torsional vibration will decay rapidly and the alternating stress on the transmission system will be reduced.

[0008] 2. In order to more effectively avoid transmission system resonance and reduce transmission system noise, some automobile clutch driven plates use two or more groups of shock absorber springs with different stiffness, and make the window lengths of the springs different in size, so as to obtain variable stiffness characteristics by making the springs act successively. The patent of the present invention uses a two-stage shock absorbing device.

[0009] The primary damper spring is a pre-damping device with a small angular stiffness. It is mainly used to reduce the impact and noise between the constantly meshing gears in the transmission caused by the unstable total engine speed. In addition, when the transmission system works under a small torque load (including deceleration and gliding), it can also reduce the torsional vibration and noise of the gears in the transmission and the main reducer and other parts in the system.

[0010] The spring stiffness of the secondary shock absorber is relatively large. It will only work when the driven disc hub and the driven disc body rotate 5° in the forward direction (the engine drives the transmission system) or 2.5 in the reverse direction (the transmission system drives the engine). It can reduce the torsional stiffness of the joint between the engine crankshaft and the transmission system, tune the torsional natural frequency of the transmission system, reduce the resonance stress of the transmission system, and improve the softness of the clutch engagement.

[0011] Preferably, the diaphragm spring is positioned on the upper side of the front end of the pressure plate A through a support ring and a support rivet.

[0012] Preferably, a positioning rivet and a transmission plate are installed on the lower side of the front end of the pressure plate A.

[0013] Preferably, the copper-based friction material torsional vibration damper A has the same structure as the copper-based friction material torsional vibration damper B; the copper-based friction material torsional vibration damper A comprises a first copper substrate, a second copper substrate, a transmission plate, a driven plate, a friction washer, a friction plate, a stop pin, a disc hub, a primary damper spring, a secondary damper spring, a butterfly spring and a damping plate; a transmission plate is provided at the front end of the first copper substrate and the two are connected by rivets; the second copper substrate is riveted to the front end of the first copper substrate.

[0014] Preferably, the rear end of the second copper substrate is engaged and connected with the driven disk; a friction washer and a friction plate are provided between the driven disk and the second copper substrate; a stop pin is installed on the inner side of the rivet hole of the driven disk; the number of stop pins is four; a disk hub is installed on the front end of the driven disk mounting position; a primary shock absorber spring is installed on the inner side of the disk hub; the number of primary shock absorber springs is four groups.

[0015] Preferably, a secondary shock absorber spring is installed at the window position of the driven disc; a friction washer and a butterfly spring are installed at the disc hub step; and the position of the stop pin matches the position of the shock absorber disc after installation.

[0016] Beneficial effects of the utility model:

[0017] The utility model 1. reduces the torsional rigidity of the joint part between the engine crankshaft and the transmission system, thereby reducing the torsional vibration natural frequency of the transmission system;

[0018] Increase the torsional damping of the transmission system, suppress the amplitude corresponding to the torsional resonance, and attenuate the transient torsional vibration caused by impact.

[0019] 3. Control the torsional vibration of the clutch and transmission shaft system when the total speed of the power transmission assembly is controlled, and eliminate the transmission idling noise and the torsional vibration and noise of the main reducer and transmission.

[0020] 4. Alleviate the torsional impact load of the transmission system under unstable working conditions and improve the engagement smoothness of the clutch. The torsional vibration damper is an important component in the automobile clutch, mainly composed of elastic elements and damping elements, among which the spring element is used to reduce the torsional stiffness of the first end of the transmission system, thereby reducing the natural frequency of a certain stage of the transmission system torsional system, changing the natural vibration mode of the system so that it can avoid the excitation caused by the main harmonic excitation of the engine torque; the damping element is used to effectively dissipate the vibration energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure shows a three-dimensional split structure diagram of the clutch of the utility model;

[0022] Figure 2 The diagram shows the front structure of the pressure plate A of the clutch of the present invention;

[0023] Figure 3 Shown is a schematic diagram of the cross-sectional structure of the pressure plate A of the clutch of the present utility model;

[0024] Figure 4 The front structure schematic diagram of the copper-based friction material torsional vibration damper A of the clutch of the utility model is shown;

[0025] Figure 5 What is shown is a schematic diagram of the cross-sectional structure of the copper-based friction material torsional vibration damper A of the present utility model.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. pressure plate A; 2. diaphragm spring; 3. cover; 4. copper-based friction material torsional vibration damper A; 401. first copper substrate; 402. second copper substrate; 403. transmission plate; 404. driven plate; 405. friction washer; 406. friction plate; 407. stop pin; 408. disc hub; 409. primary damper spring; 410. secondary damper spring; 411. butterfly spring; 412. damping plate; 5. pressure plate B; 6. copper-based friction material torsional vibration damper B; 7. support ring; 8. support rivet; 9. positioning rivet; 10. transmission plate. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figure 1-3 The utility model provides an embodiment: a dual-power copper-based plate material clutch, including a pressure plate A1, a diaphragm spring 2, a cover 3, a copper-based friction material torsional vibration damper A4, a pressure plate B5, a copper-based friction material torsional vibration damper B6, a supporting ring 7, a supporting rivet 8, a positioning rivet 9, and a transmission plate 10; the diaphragm spring 2 and the cover 3 are sequentially installed at the front end of the pressure plate A1; the pressure plate B5 is arranged at the rear end of the pressure plate A1; the copper-based friction material torsional vibration damper A4 is installed between the pressure plate B5 and the pressure plate A1; the copper-based friction material torsional vibration damper B6 is installed at the rear end of the pressure plate B5; the diaphragm spring 2 is positioned on the upper side of the front end of the pressure plate A1 through the supporting ring 7 and the supporting rivet 8; the positioning rivet 9 and the transmission plate 10 are installed on the lower side of the front end of the pressure plate A1.

[0029] See also Figure 4-5In this embodiment, the copper-based friction material torsional vibration damper A4 has the same structure as the copper-based friction material torsional vibration damper B6; the copper-based friction material torsional vibration damper A4 includes a first copper substrate 401, a second copper substrate 402, a transmission disc 403, a driven disc 404, a friction washer 405, a friction plate 406, a stop pin 407, a hub 408, a primary damper spring 409, a secondary damper spring 410, a butterfly spring 411 and a damping disc 412; a transmission disc 403 is provided at the front end of the first copper substrate 401 and the two are connected by rivets; the front end of the first copper substrate 401 is riveted with the second copper substrate 402, and the second copper substrate 40 2 rear end is engaged and connected with the driven disc 404; a friction washer 405 and a friction plate 406 are arranged between the driven disc 404 and the second copper substrate 402; a stop pin 407 is installed inside the rivet hole of the driven disc 404; the number of the stop pins 407 is four; a disc hub 408 is installed at the front end of the installation position of the driven disc 404; a primary shock absorber spring 409 is installed inside the disc hub 408; the number of the primary shock absorber spring 409 is four groups; a secondary shock absorber spring 410 is installed at the window position of the driven disc 404; a friction washer 405 and a butterfly spring 411 are installed at the step of the disc hub 408; the position of the stop pin 407 matches the position of the shock absorber disc 412 after installation.

[0030] During assembly, the diaphragm spring 2 is installed on the cover 3 and connected to the pressure plate A1 through the transmission plate 10. The copper-based friction material torsional vibration damper A4 is fixed by the installation position of the pressure plate B5. The copper-based friction material torsional vibration damper B6 is fastened to the pressure plate B5 and the flywheel surface through a connecting piece to form a dual-power copper-based sheet material torsional vibration damper.

[0031] According to the requirements of the sub-assembly, nine supporting rivets 8 are placed on the tooling positioning seat, a supporting ring 7 is installed at the step, and after taking a diaphragm spring 2 with the concave surface facing downward, another supporting ring 7 is taken for installation, and a cover 3 is taken for installation at the corresponding rivet hole position. After the rivets are thickened, a sub-assembly is formed, and the pressure plate A1 and the transmission plate 10 are riveted together to form a pressure plate sub-assembly, and the two sub-assemblies are riveted together to form an assembly.

[0032] The structure of the torsional vibration damper is as follows: the first copper substrate 401 is connected to the transmission plate 403 by rivets, and then connected to the second copper substrate 402 and riveted to form a transmission plate 403 assembly. After the transmission plate 403 assembly is positioned correctly, the driven plate 404 is installed to cooperate with the friction washer 405 and the friction plate 406. Four stop pins 407 are taken and installed at the riveting hole positions, and the corresponding positions of the disk hub 408 are assembled. Four groups of primary shock absorber springs 409 are installed, and four groups of secondary shock absorber springs 410 are installed according to the window position of the driven plate 404. The friction washer 405 and the butterfly spring 411 are installed at the step of the disk hub 408. A damping disk 412 is taken and installed at the corresponding window position and at the same time corresponding to the stop pin 407 hole position. The step surface of the stop pin 407 needs to be higher than the end face of the damping disk 412. After the parts are installed, they are riveted together by a press.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A dual-power copper-based clutch, comprising a pressure plate A (1); characterized in that: The invention also comprises a diaphragm spring (2), a cover (3), a copper-based friction material torsional vibration damper A (4), a pressure plate B (5), a copper-based friction material torsional vibration damper B (6), a support ring (7), a support rivet (8), a positioning rivet (9), and a transmission plate (10); the front end of the pressure plate A (1) is sequentially mounted with the diaphragm spring (2) and the cover (3); the rear end of the pressure plate A (1) is provided with the pressure plate B (5); the copper-based friction material torsional vibration damper A (4) is mounted between the pressure plate B (5) and the pressure plate A (1); and the rear end of the pressure plate B (5) is mounted with the copper-based friction material torsional vibration damper B (6).

2. A dual-power copper-based clutch according to claim 1, characterized in that: The diaphragm spring (2) is positioned at the upper side of the front end of the pressure plate A (1) through a support ring (7) and a support rivet (8).

3. A dual-power copper-based clutch according to claim 1, characterized in that: A positioning rivet (9) and a transmission plate (10) are installed on the lower side of the front end of the pressure plate A (1).

4. A dual-power copper-based clutch according to claim 1, characterized in that: The copper-based friction material torsional vibration damper A (4) has the same structure as the copper-based friction material torsional vibration damper B (6); the copper-based friction material torsional vibration damper A (4) comprises a first copper substrate (401), a second copper substrate (402), a transmission disc (403), a driven disc (404), a friction washer (405), a friction plate (406), a stop pin (407), a disc hub (408), a primary damper spring (409), a secondary damper spring (410), a butterfly spring (411) and a damping disc (412); a transmission disc (403) is arranged at the front end of the first copper substrate (401) and the two are connected by rivets; and the second copper substrate (402) is riveted to the front end of the first copper substrate (401).

5. A dual-power copper-based clutch according to claim 4, characterized in that: The rear end of the second copper substrate (402) is engaged with the driven disk (404); a friction washer (405) and a friction plate (406) are provided between the driven disk (404) and the second copper substrate (402); a stop pin (407) is installed on the inner side of the rivet hole of the driven disk (404); the number of the stop pins (407) is four; a disk hub (408) is installed on the front end of the installation position of the driven disk (404); a primary shock absorber spring (409) is installed on the inner side of the disk hub (408); the number of the primary shock absorber spring (409) is four sets.

6. A dual-power copper-based clutch according to claim 5, characterized in that: A secondary damper spring (410) is installed at the window position of the driven disc (404); a friction washer (405) and a butterfly spring (411) are installed at the step of the disc hub (408); and the position of the stop pin (407) matches the position of the damping disc (412) after installation.

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