Riveting and torsion limiting structure of clutch driven plate assembly

Abstract

The invention discloses a clutch driven plate assembly riveting and torsion limiting structure which comprises a damping plate, a connected spring piece and a driven plate, the end of the driven plate extends and is bent to form a bent section A and a bent section B, the end face of the bent section B is in plane contact with the connected spring piece, and the driven plate, the connected spring piece and the bent section B are fixedly connected together through rivets. The contact size of the end face of the bent section B and the plane of the one-piece spring piece is set according to the pressing length requirement. The invention has the following beneficial effects: 1, the failure rate of the product is effectively reduced; 2, the manufacturing requirement of the product is obviously reduced, and the production cost is reduced for enterprises; and 3, the requirement of the assembly process is reduced, and the use cost of machines and manpower is reduced.

Description

technical field [0001] The invention relates to key parts of automobiles, mainly a riveting and torsion limiting structure of a clutch driven disc assembly. Background technique [0002] The clutch is an important part of the automobile transmission system, which plays the role of transmitting and cutting off the power generated by the engine. The safety and stability of the clutch working performance directly affects the starting, braking and driving performance of the vehicle during use. [0003] As the main part of the clutch kit, the clutch driven disc assembly has always been completed by riveting in the assembly. With the increase of vehicle power, there is a greater torque requirement for the clutch. The existing riveted structure lacks sufficient strength to meet the requirements of use. [0004] In the existing design, the riveting mechanism of the old-fashioned clutch driven disc assembly is as follows: figure 1 As shown, the driven plate 4, the damping plate 1, ...

AI Technical Summary

Problems solved by technology

[0004] In the existing design, the riveting mechanism of the old-fashioned clutch driven disc assembly is as follows: figure 1 As shown, the driven plate 4, the damping plate 1, and the one-piece spring piece 3 are riveted with the support pin 2. This structure has disadvantages: 1. Limited by the process of cold heading and turning of the support pin, the support pin The strength of the middle part of the underwriting will decrease to a certain extent, and it is easy to be squeezed and deformed in the subsequent riveting to reduce the damping angle, resulting in a decrease in the strength of the support pin and a reduction in torque, which cannot guarantee the use of the product; 2. This structure requires Using 4 support pins, the theory requires that the height of the middle section of the support pins must be consistent. The current lathe processing method is poor in consistency. After riveting, it is easy to cause high and low deformation of individual products, which affects the service life.

3. The support pin is used as a torsion limiting part. Considering the comfort, a large corner is required, so the diameter of the middle section of the support pin is not easy to be too large, which leads to the small contact surface between the end surface of the support pin and the conjoined spring piece, which cannot be better. The shear force generated during the use of the load-carrying product may easily cause the conjoined spring piece to loosen, resulting in failure of the assembly

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