Clutch with elastic compensation function

By introducing an elastic compensation support ring and a wave-shaped transmission plate into the clutch, the problem of clearance accumulation after wear is solved, achieving stable operation and extended service life of the clutch, reducing maintenance costs and improving shifting smoothness.

CN224479209UActive Publication Date: 2026-07-10CHANGCHUN YIDONG CLUTCH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN YIDONG CLUTCH
Filing Date
2025-09-05
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing clutches experience a buildup of clearance after wear, leading to decreased transmission accuracy and increased vibration, which affects long-term stable operation. Furthermore, wear on parts results in frequent replacements and increased maintenance costs.

Method used

By employing an elastic compensation support ring and a wave-shaped transmission plate, and by setting stress grooves and positioning grooves on the support ring, automatic compensation of component gaps and absorption of vibration energy are achieved. Combined with fixed components and energy-absorbing components, the stability and lifespan of the clutch are ensured.

Benefits of technology

It improves the overall performance stability of the clutch, extends its service life, reduces part wear and maintenance frequency, and enhances shifting smoothness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of clutch with elastic compensation function, specifically related to clutch technical field, including clutch cover, positioning mechanism is provided on clutch cover, the inside of clutch cover is equipped with diaphragm spring by supporting ring, diaphragm spring is connected by rivet with clutch cover, the bottom of clutch cover is provided with support mechanism, elastic compensation supporting ring is installed on support mechanism, the top of elastic compensation supporting ring is equipped with multiple stress grooves, multiple stress grooves are circumferentially distributed.The utility model changes clutch cover assembly supporting ring rigid connection structure by setting elastic compensation supporting ring, uses elastic compensation part as fulcrum, and the function equivalent of original welding supporting ring structure, can automatically restore required support force after wearing, make up the gap between parts caused in the use process of clutch assembly, improve assembly performance stability, prolong clutch service life, realize the automatic control of clutch.
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Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and more specifically, to a clutch with elastic compensation function. Background Technology

[0002] Most push-type diaphragm spring clutches on the market currently use a double support ring structure. The two support rings are welded together to form a ring structure, and the two support rings are riveted to the cover by support rivets. The diaphragm spring is sandwiched between the two support rings. The diaphragm spring acts as a lever to provide clamping force, while the support rings act as a fulcrum.

[0003] Existing 396AMT clutch support structures, both domestically and internationally, mostly employ rigid designs, merely fulfilling the basic fulcrum function. While some explorations of flexible materials abroad exist, a systematic wear compensation solution has not yet been developed. Domestic research primarily focuses on optimizing the overall clutch control algorithm, with insufficient attention paid to improving the structure of key components. Current technologies generally suffer from problems such as decreased transmission accuracy and increased vibration due to accumulated wear clearances, hindering long-term stable clutch operation. As vehicle mileage increases, road conditions become more complex, and gear shifting frequency rises, the support ring experiences increasingly frequent forces. This frequent stress leads to varying degrees of wear on the support ring surface, the surface of the cover parts in contact with the support ring, and the surface of the diaphragm spring in contact with the support ring, resulting in gaps between components and affecting clutch disengagement performance.

[0004] In summary, to ensure the long-term stable operation of the clutch, it is necessary to address the problems of decreased transmission accuracy and increased vibration caused by the accumulation of clearance after wear. The internal support structure of the clutch should not only fulfill the function of the original support ring, but also dynamically compensate for the clearance between various parts caused by wear during clutch use, thereby improving the overall performance of the clutch. Utility Model Content

[0005] The present invention provides a clutch with elastic compensation function, which solves the problem that the original rigid support ring wears and the clearance cannot be compensated during the operation of the 395AMT clutch, resulting in decreased clutch working stability, shortened life, and increased maintenance costs and downtime due to frequent replacement of parts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clutch with elastic compensation function, including a clutch cover, a positioning mechanism on the clutch cover, a diaphragm spring installed on the inner side of the clutch cover via a support ring, the diaphragm spring being connected to the clutch cover via rivets, a support mechanism at the bottom of the clutch cover, an elastic compensation support ring installed on the support mechanism, and multiple stress grooves on the top of the elastic compensation support ring, the multiple stress grooves being circumferentially distributed.

[0007] In a preferred embodiment, the positioning mechanism includes a fixing component and an energy-absorbing component, wherein the fixing component is used to fix the clutch cover and the energy-absorbing component is used to buffer and dampen vibration.

[0008] In a preferred embodiment, the fixing assembly includes a plurality of fixing bolts disposed on the clutch cover, the plurality of fixing bolts being circumferentially distributed, and the bottom of the fixing bolts penetrating the clutch cover and connected to the diaphragm spring.

[0009] In a preferred embodiment, the energy-absorbing assembly includes a positioning hole formed on the clutch cover, and a transmission plate is connected to the bottom of the positioning hole by screws. Washers are provided at both ends of the transmission plate.

[0010] In a preferred embodiment, the support mechanism includes a mounting assembly for mounting the clutch cover and a support assembly for providing support for the diaphragm spring and the elastic compensation support ring.

[0011] In a preferred embodiment, the mounting assembly includes a pressure plate disposed on the underside of the clutch cover, the pressure plate having multiple mounting holes, and the clutch cover having multiple connecting bolts, the clutch cover and the pressure plate being fixedly connected by the connecting bolts.

[0012] In a preferred embodiment, the support assembly includes a flat support ring disposed on the pressure plate, the top of the flat support ring having a plurality of connecting holes and a positioning groove.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention changes the rigid connection structure of the support ring of the 395 clutch cover assembly by setting an elastic compensation support ring. By using an elastic compensation part as a fulcrum, it compensates for the gaps between parts caused by the clutch assembly during use, improves the stability of the assembly performance, extends the service life of the clutch, and realizes automatic control of the clutch. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the clutch cover of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the flat support ring of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the elastic compensation support ring of this utility model.

[0020] The attached diagram is labeled as follows: 1. Clutch cover; 21. Fixing bolt; 22. Transmission plate; 23. Washer; 24. Positioning hole; 3. Diaphragm spring; 4. Elastic compensation support ring; 5. Stress groove; 61. Flat support ring; 62. Connecting hole; 63. Positioning groove; 64. Pressure plate; 65. Mounting hole; 66. Connecting bolt. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Refer to the instruction manual appendix Figures 1 to 5 A clutch with elastic compensation function includes a clutch cover 1, a positioning mechanism on the clutch cover 1, a diaphragm spring 3 installed on the inner side of the clutch cover 1 through a support ring, the diaphragm spring 3 being connected to the clutch cover 1 by rivets, a support mechanism at the bottom of the clutch cover 1, an elastic compensation support ring 4 installed on the support mechanism, and multiple stress grooves 5 on the top of the elastic compensation support ring 4, the multiple stress grooves 5 being circumferentially distributed.

[0023] It should be noted that the top of the elastic compensation support ring 4 has a stress groove 5, and its overall cross-section is wavy. It forms an arch at the pitch circle diameter of the support point, which acts as a fulcrum. It is functionally equivalent to the original welded support ring structure. The wave-shaped stress groove 5 and the elastic claw linkage structure can automatically restore the required support force after wear, which makes up for the gap between parts caused by the use of the clutch assembly, improves the stability of the assembly performance, extends the service life of the clutch, and realizes the automatic control of the clutch.

[0024] Refer to the instruction manual appendix Figure 2 The positioning mechanism includes a fixing component and an energy-absorbing component. The fixing component is used to fix the clutch cover 1, and the energy-absorbing component is used for buffering and vibration reduction.

[0025] It should be noted that the fixing component can fix the clutch cover 1 in place, and the energy absorption component can mitigate the sudden torque change at the moment of clutch engagement through elastic deformation, thereby improving shift smoothness and reducing jerking.

[0026] Refer to the instruction manual appendix Figure 2 The fixing assembly includes multiple fixing bolts 21 disposed on the clutch cover 1. The multiple fixing bolts 21 are circumferentially distributed, and the bottom of the fixing bolts 21 penetrates the clutch cover 1 and is connected to the diaphragm spring 3.

[0027] It should be noted that by setting the fixing bolt 21, the installation strength of the clutch cover 1 can be ensured.

[0028] Refer to the instruction manual appendix Figure 2 The energy absorption assembly includes a positioning hole 24 opened on the clutch cover 1. The bottom of the positioning hole 24 is connected to a transmission plate 22 by screws. Both ends of the transmission plate 22 are provided with washers 23.

[0029] It should be noted that the transmission plate 22 is wavy. When the engine is working, it will generate periodic torque fluctuations. If these vibrations are directly transmitted to the gearbox, they will cause gear impact, abnormal noise, or even damage. The elastic deformation of the wavy transmission plate 22 can absorb some of the vibration energy and reduce the impact on the transmission system.

[0030] Refer to the instruction manual appendix Figure 1 and Figure 2 The support mechanism includes a mounting assembly and a support assembly. The mounting assembly is used to mount the clutch cover 1, and the support assembly is used to provide support for the diaphragm spring 3 and the elastic compensation support ring 4.

[0031] It should be noted that the mounting assembly and clutch cover 1 are used to position and install all components, and the support assembly is used to support the elastic compensation support ring 4.

[0032] Refer to the instruction manual appendix Figures 2 to 4 The mounting assembly includes a pressure plate 64 located on the lower side of the clutch cover 1. The pressure plate 64 has multiple mounting holes 65, and the clutch cover 1 has multiple connecting bolts 66. The clutch cover 1 and the pressure plate 64 are fixedly connected by the connecting bolts 66.

[0033] It should be noted that by setting the mounting hole 65 and the connecting bolt 66, the clutch cover 1 and the pressure plate 64 can be easily fixed and installed.

[0034] Refer to the instruction manual appendix Figure 4 The support assembly includes a flat support ring 61 disposed on the pressure plate 64. The top of the flat support ring 61 has multiple connecting holes 62 and a positioning groove 63.

[0035] It should be noted that the flat support ring 61 is made of high-strength steel and is located between the diaphragm spring 3 and the pressure plate 64. As a rigid support point for the diaphragm spring 3, the flat support ring 61 ensures that its deformation direction is correct and prevents the spring from twisting or failing due to uneven force. The positioning groove 63 on its surface cooperates with the protrusions or pins on the diaphragm spring 3 or the pressure plate 64 to ensure that the flat support ring 61 will not rotate or shift circumferentially during assembly and maintains the correct alignment with the diaphragm spring 3 and the pressure plate 64.

[0036] Working principle: The clutch cover 1 works in conjunction with other components to achieve elastic compensation and energy absorption functions. The clutch cover 1 is connected to the diaphragm spring 3 by multiple fixing bolts 21. The diaphragm spring 3 is fixed to the clutch cover 1 by rivets and supported by a support ring. The bottom of the clutch cover 1 is fixedly connected to the pressure plate 64 by connecting bolts 66. A flat support ring 61 is installed on the pressure plate 64. The top of the flat support ring 61 is provided with a connecting hole 62 and a positioning groove 63 for precise alignment. An elastic compensation support ring 4 is installed on the flat support ring 61. Multiple stress grooves 5 on its top form a wavy cross section, indexed at the support point. The diaphragm spring 3 forms an arched fulcrum at the diameter of the circle. When the clutch engages or disengages, the pressure applied by the diaphragm spring 3 automatically compensates for the wear gap through the arched structure, restores the support force, ensures stable clutch performance and extends its service life. At the same time, the positioning hole 24 on the clutch cover 1 connects the wave-shaped transmission plate 22 and the washer 23 through screws. The transmission plate 22 absorbs the periodic torque vibration energy of the engine, reduces the impact transmitted to the gearbox, and improves the smoothness of shifting. The flat support ring 61 provides rigid support to ensure that the deformation direction of the diaphragm spring 3 is correct and avoids torsional failure, thereby realizing automatic control and efficient buffering of the clutch.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A clutch with elastic compensation function, characterized in that: Includes a clutch cover (1), a positioning mechanism is provided on the clutch cover (1), a diaphragm spring (3) is installed on the inner side of the clutch cover (1) through a support ring, the diaphragm spring (3) is connected to the clutch cover (1) by rivets, a support mechanism is provided at the bottom of the clutch cover (1), an elastic compensation support ring (4) is installed on the support mechanism, and multiple stress grooves (5) are opened on the top of the elastic compensation support ring (4), and the multiple stress grooves (5) are distributed in a circle.

2. A clutch with elastic compensation function according to claim 1, characterized in that: The positioning mechanism includes a fixing component and an energy-absorbing component. The fixing component is used to fix the clutch cover (1), and the energy-absorbing component is used to buffer and reduce vibration.

3. A clutch with elastic compensation function according to claim 2, characterized in that: The fixing assembly includes multiple fixing bolts (21) disposed on the clutch cover (1). The multiple fixing bolts (21) are distributed in a circle, and the bottom of the fixing bolts (21) passes through the clutch cover (1) and is connected to the diaphragm spring (3).

4. A clutch with elastic compensation function according to claim 3, characterized in that: The energy absorption assembly includes a positioning hole (24) on the clutch cover (1), and a transmission plate (22) is connected to the bottom of the positioning hole (24) by screws. Washers (23) are provided at both ends of the transmission plate (22).

5. A clutch with elastic compensation function according to claim 4, characterized in that: The support mechanism includes a mounting assembly and a support assembly. The mounting assembly is used to mount the clutch cover (1), and the support assembly is used to provide support for the diaphragm spring (3) and the elastic compensation support ring (4).

6. A clutch with elastic compensation function according to claim 5, characterized in that: The mounting assembly includes a pressure plate (64) located on the underside of the clutch cover (1), with multiple mounting holes (65) on the pressure plate (64) and multiple connecting bolts (66) on the clutch cover (1). The clutch cover (1) and the pressure plate (64) are fixedly connected by the connecting bolts (66).

7. A clutch with elastic compensation function according to claim 6, characterized in that: The support assembly includes a flat support ring (61) disposed on the pressure plate (64), the top of the flat support ring (61) having multiple connecting holes (62), and the top of the flat support ring (61) also having a positioning groove (63).