CN211231346U

CN211231346U - Double-clutch return spring group

Info

Publication number: CN211231346U
Application number: CN201922223891.8U
Authority: CN
Inventors: 叶锐
Original assignee: Kern Liebers Taicang Co ltd
Current assignee: Kern Liebers Taicang Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-11
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a double clutch return spring group, including piston dish, spring and spring supporting disk, the spring rigid coupling is between piston dish and spring supporting disk. According to the utility model discloses, directly shift the spring bracket function of punching press disc to the piston dish on, with the spring equipartition on the piston dish. In the stamping process of the piston disc, suitable steps are directly processed in an evenly distributed mode, and the spring is riveted on the piston disc. The spring is directly riveted on the piston, so that the number of parts is reduced, and the installation process is simplified. The annular steel sheet is eliminated, the product cost is reduced, a larger movement space is provided for the spring to achieve larger restoring force, and the redundant weight is reduced.

Description

Double-clutch return spring group

Technical Field

The utility model relates to an automobile power transmission field especially relates to double clutch return spring group.

Background

A Dual Clutch, Dual Clutch Transmission (DCT), is a Transmission. The automatic transmission system is different from a common automatic transmission system, belongs to a manual transmission and an automatic transmission, and can provide uninterrupted power output besides the flexibility of the manual transmission and the comfort of the automatic transmission. The gearbox is in the form of two clutches, one for 1, 3 and 5 gears and one for 2, 4 and 6 gears. When the first gear is used, the second gear is ready, so that the gear shifting time is greatly shortened, and no time delay exists.

The dual clutch return spring set provides a return force during shifting. The working surface of the pressure plate is pressed in normal work, and the driven plate is tightly pressed on the working surface of the flywheel; in the disengaging process, under the action of the pressure plate disengaging lever, the spring group is further compressed, and the clutch is disengaged.

Generally, a spring set consists of an upper circular steel sheet and a lower circular steel sheet and a certain number of compression springs. The compression springs are riveted on the upper steel sheet and the lower steel sheet in sequence according to the sequence of left-handed rotation or right-handed rotation, and provide restoring force for clutch transmission in a compressed state, and the mode is widely used in the conventional double clutches.

According to the current assembly mode, the left-right rotating springs need to be distributed on the circular ring steel sheet firstly and are fixed in a riveting mode. The riveted spring group is placed in the piston, so that the process is more and the installation is inconvenient.

According to the transmission principle, the circular steel sheet is only used as a support for fixing the compression spring, the support is in plane contact with the inner wall of the piston, and the circular steel sheet does not participate in movement. Therefore, the cost of parts is increased, and the thickness of the circular steel sheet also limits the movement space of the spring, so that larger restoring force cannot be achieved.

The two circular steel sheets are usually about 100g, while the spring actually providing the restoring force is only 25g, and the whole spring set has over 80 percent of redundant weight, which is not beneficial to developing light weight.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that reduce spring assembly weight, increase spring operating space, the installation of being convenient for.

In order to achieve the above object, the utility model provides a double clutch return spring group, including piston disc, spring and spring supporting disk, the spring rigid coupling is between piston disc and spring supporting disk.

Further, the spring is a group of springs, and the spring is a left-hand screw.

Further, the spring is a group of springs, and the spring is right-handed.

Further, the number of the springs is 6-30.

Further, the springs are evenly distributed on the edge of the piston disc.

Further, the fixing mode is riveting.

Further, the spring is in a spatially perpendicular relationship with the piston disc.

Further, the spring is in parallel relation with the main shaft of the double clutch.

Further, the spring is a compression spring.

Furthermore, a circle of circular groove is formed in the piston disc, and the spring is fixedly connected to the groove.

According to the utility model discloses, directly shift the spring bracket function of punching press disc to the piston on, provide the possibility with the spring equipartition on the motion piston. In the stamping process, the moving piston disc is directly processed into proper steps in an evenly distributed mode, and the spring is riveted on the piston disc. The spring is directly riveted on the piston disc, so that the number of parts is reduced, and the installation process is simplified. The annular steel sheet is eliminated, the product cost is reduced, a larger movement space is provided for the spring to achieve larger restoring force, and the redundant weight of 100g is reduced.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is an exploded view of a dual clutch according to a preferred embodiment of the present invention;

fig. 2 is a perspective sectional view of a dual clutch according to another preferred embodiment of the present invention.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

As shown in fig. 1, a preferred embodiment of the present invention is a dual clutch return spring set, which includes a piston disc 1, a spring 2 and a spring support disc 3, wherein the spring 2 is fixedly connected between the piston disc 1 and the spring support disc 3. The spring 2 is a group of springs, and the spring 2 is left-handed; the spring set provides a stable rebound force. The number of the springs 2 is 6-30, the springs 2 are evenly distributed on the edge of the piston disc 1, the fixedly connecting mode is riveting, and the spring set provides stable resilience force. The spring 2 and the piston disc 1 are in a vertical relation in space, the spring 2 and a main shaft of the double clutch are in a parallel relation, the spring 2 is a compression spring, and the spring group provides stable resilience force. The piston disc 1 is provided with a circle of circular grooves, and the springs 2 are fixedly connected to the grooves, so that the resilience of the springs 2 is not influenced. As shown in fig. 2, in another preferred embodiment of the present invention, the springs are a set of springs, and the springs are right-handed; the spring set provides a stable rebound force.

For solving the prior art shortcoming, the utility model discloses a main problem of solving of scheme adopts the part as few as possible to reach the same answer effect, has increased the operating space of spring 2, makes the assembly more simple and convenient. According to the utility model discloses, directly shift the spring bracket function of punching press disc to piston dish 1 on, with 2 equipartitions of spring on piston dish 1. In the stamping manufacturing process of the piston disc 1, proper steps are directly processed in an evenly distributed mode, and the spring 2 is riveted on the steps of the piston disc 1. The spring 2 is directly riveted on the piston disc 1, so that the number of parts is reduced, and the installation process is simplified. The original circular steel sheet is cancelled, the product cost is reduced, a larger movement space is provided for the spring 2 to achieve larger restoring force, and 100g redundant weight is reduced.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The double-clutch return spring group is characterized by comprising a piston disc, a spring and a spring supporting disc, wherein the spring is fixedly connected between the piston disc and the spring supporting disc.

2. The dual clutch return spring set of claim 1 wherein the spring is a set of springs, the springs being left handed.

3. The dual clutch return spring set of claim 1 wherein the spring is a set of springs, the spring being right hand.

4. The dual clutch return spring assembly of claim 1 wherein the number of springs is 6 to 30.

5. The dual clutch return spring assembly of claim 4 wherein the springs are evenly distributed about the periphery of the piston disc.

6. The dual clutch return spring assembly of claim 1 wherein the securement is by riveting.

7. The dual clutch return spring set of claim 1 wherein said spring is in a spatially perpendicular relationship with said piston disc.

8. The dual clutch return spring set of claim 1 wherein the spring is in parallel relationship with the main shaft of the dual clutch.

9. The dual clutch return spring set of claim 1 wherein the spring is a compression spring.

10. The dual clutch return spring assembly of claim 1 wherein the piston plate has a circular annular groove therein, the spring being fixedly attached to the groove.