CN212131114U

CN212131114U - Take BPS clutch piston of jump ring limit structure

Info

Publication number: CN212131114U
Application number: CN202020690903.8U
Authority: CN
Inventors: 郝永波; 王明明; 邓振宇; 杨克军; 田伟波; 周朝强; 刘宏彬; 计长红; 韩庆超; 冯帅
Original assignee: Harbin Limin Rubber Co ltd
Current assignee: Harbin Limin Rubber Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-11
Anticipated expiration: 2030-04-29

Abstract

A BPS clutch piston with a clamp spring limiting structure relates to a piston. The edge of annular rubber body outer wall upper surface is equipped with the platform lip portion of falling ring along its circumference, the platform lip portion upper surface of falling ring has the lip relief angle that the slope set up, the middle part of annular lip portion outer wall is equipped with the lip fillet, annular lip portion outer wall lower extreme has the lip anterior angle that the slope set up, the lip relief angle, lip fillet and lip anterior angle end to end, annular rubber body inner wall is equipped with the annular mounting groove along its circumference, annular metal framework's outer wall closely insert behind the annular mounting groove with annular rubber body fixed connection, annular metal framework's section is the echelonment, the inboard of terminal surface is equipped with spacing boss of a plurality of jump rings and a plurality of derailleur oil through holes along its circumference under the annular metal framework, spacing boss of a plurality of jump rings and. The utility model provides a jump ring drop the quality problems who causes, and then realized clutch internal pressure's among the automatic gearbox sealed and transmission.

Description

Take BPS clutch piston of jump ring limit structure

Technical Field

The utility model relates to a piston, especially a take BPS clutch piston of jump ring limit structure.

Background

With the continuous update of automobile technology, the automatic transmission car has entered into the life of people, and the automatic transmission technology is continuously accepted by people. The performance of key components in automatic transmissions is therefore becoming an important concern.

The key spare part of clutch is the clutch piston in automatic speed change, and its inner hole and clutch shaft clearance fit utilize the jump ring to carry out axial fixity, and the product can bear certain oil pressure at the course of the work, if fixed jump ring drops then can lead to the piston to drop, then leads to the unable normal work of clutch, loses the effect of shifting, causes serious quality problems.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a take jump ring limit structure's BPS clutch piston.

The purpose is achieved, the utility model adopts the following technical proposal: a BPS clutch piston with a clamp spring limiting structure comprises an annular rubber body and an annular metal framework; the edge of the upper surface of annular rubber body outer wall is equipped with the platform lip portion of falling ring along its circumference, the upper surface of the platform lip portion of falling ring is equipped with the lip relief angle that the slope set up, and the middle part of annular lip portion outer wall is equipped with the lip fillet, and the lower extreme of annular lip portion outer wall is equipped with the lip rake angle that the slope set up, lip relief angle, lip fillet and lip rake angle end to end set up, and annular rubber body inner wall is equipped with the annular mounting groove along its circumference, annular metal framework's outer wall inserts closely behind the annular mounting groove with annular rubber body fixed connection, annular metal framework's section is the echelonment, and the inboard of terminal surface is equipped with spacing boss of a plurality of jump rings and a plurality of derailleur oil through holes along its circumference under the annular metal framework, spacing boss of a.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model realizes sealing according to the interference fit of the inverted ring platform lip part and the opponent part; according to the reciprocating motion of the inverted ring platform lip and the opponent part, the transmission of force is realized, the effect of limiting the clamp spring is achieved through the clamp spring limiting boss, the quality problem caused by the fact that the clamp spring falls off is solved, and then the sealing and the transmission of the internal pressure of the clutch in the automatic transmission are realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view of the annular rubber body;

fig. 4 is an enlarged view of fig. 2 at B.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 4, the utility model discloses a BPS clutch piston with a circlip limiting structure, which comprises an annular rubber body 1 and an annular metal framework 2; an inverted annular platform lip part 1-1 is arranged at the edge of the upper surface of the outer wall of the annular rubber body 1 along the circumferential direction of the annular rubber body, and the structure is a key sealing structure of the piston and forms interference fit with a counterpart piece when in use; the upper surface of the inverted ring platform lip part 1-1 is provided with a lip back angle 1-1-2 which is obliquely arranged, the middle part of the outer wall of the annular lip part 1-1 is provided with a lip fillet 1-1-3, the lower end of the outer wall of the annular lip part 1-1 is provided with a lip front angle 1-1-1 which is obliquely arranged, the lip back angle 1-1-2, the lip fillet 1-1-3 and the lip front angle 1-1-1 are arranged in an end-to-end connection manner, the middle part of the inner wall of the annular rubber body 1 is provided with an annular mounting groove 1-2 along the circumferential direction, the outer wall of the annular metal framework 2 is tightly inserted into the annular mounting groove 1-2 and then is fixedly connected with the annular rubber body 1, the annular metal framework 2 plays a role in supporting strength, the section of, the inner side of the lower end face of the annular metal framework 2 is provided with a plurality of clamp spring limiting bosses 2-1 and a plurality of transmission oil through holes 2-2 along the circumferential direction, and the plurality of clamp spring limiting bosses 2-1 and the plurality of transmission oil through holes 2-2 are alternately arranged one by one.

The second embodiment is as follows: as shown in FIGS. 2 and 3, the present embodiment is further explained for the first embodiment, the angle of inclination of the front lip angle (1-1-1) is 30 to 40, and the angle of inclination of the rear lip angle (1-1-2) is 20 to 35.

The third concrete implementation mode: in this embodiment, the first embodiment is further described, and the annular rubber body 1 and the annular metal framework 2 are bonded and fixed by rubber vulcanization.

The third concrete implementation mode: the embodiment is further explained for the first, second or third embodiment, and the plurality of snap spring limiting bosses 2-1 and the plurality of transmission oil through holes 2-2 are uniformly distributed along the circumferential direction of the annular metal framework 2.

Sealing is realized according to the interference fit of the inverted annular platform lip 1-1 and the opponent part; the inverted circular table lip 1-1 reciprocates with the counter element to realize the transmission of force. The clamp spring limiting bosses 2-1 evenly distributed on the annular metal framework 2 play a role of limiting the clamp springs, oil pressure of the sealed clutch cavity is achieved, power is transmitted, and the clamp springs are prevented from falling off.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a take BPS clutch piston of jump ring limit structure which characterized in that: comprises an annular rubber body (1) and an annular metal framework (2); the edge of the upper surface of the outer wall of the annular rubber body (1) is provided with a reverse ring platform lip part (1-1) along the circumferential direction, the upper surface of the reverse ring platform lip part (1-1) is provided with a lip back angle (1-1-2) which is obliquely arranged, the middle part of the outer wall of the annular lip part (1-1) is provided with a lip fillet (1-1-3), the lower end of the outer wall of the annular lip part (1-1) is provided with a lip front angle (1-1-1) which is obliquely arranged, the lip back angle (1-1-2), the lip fillet (1-1-3) and the lip front angle (1-1-1) are arranged in an end-to-end manner, the inner wall of the annular rubber body (1) is provided with an annular mounting groove (1-2) along the circumferential direction, the outer wall of the annular metal framework (2) is tightly inserted into the annular mounting groove (, the section of the annular metal framework (2) is in a step shape, a plurality of clamp spring limiting bosses (2-1) and a plurality of transmission oil through holes (2-2) are arranged on the inner side of the lower end face of the annular metal framework (2) along the circumferential direction of the annular metal framework, and the clamp spring limiting bosses (2-1) and the transmission oil through holes (2-2) are alternately arranged one by one.

2. The BPS clutch piston with the clamp spring limiting structure according to claim 1, wherein: the inclination angle of the front lip angle (1-1-1) is 30-40 degrees, and the inclination angle of the rear lip angle (1-1-2) is 20-35 degrees.

3. The BPS clutch piston with the clamp spring limiting structure according to claim 1, wherein: the annular rubber body (1) and the annular metal framework (2) are bonded and fixed in a rubber vulcanization mode.

4. The BPS clutch piston with the clamp spring limiting structure according to claim 1, 2 or 3, wherein: the clamping spring limiting bosses (2-1) and the transmission oil through holes (2-2) are uniformly distributed along the circumferential direction of the annular metal framework (2).