CN113719552B

CN113719552B - Clutch assembly

Info

Publication number: CN113719552B
Application number: CN202110924008.7A
Authority: CN
Inventors: 陈宁; 钱啟德; 王永仓; 苏周鹏; 丁世浩; 张超; 杨广柱
Original assignee: Shaanxi Aero Space Power Hi Tech Co Ltd
Current assignee: Shaanxi Aero Space Power Hi Tech Co Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2023-07-14
Anticipated expiration: 2041-08-12
Also published as: CN113719552A

Abstract

The utility model provides a clutch assembly, which comprises a driven plate, the holder, a plurality of arc springs and a plurality of flexible restriction device holder with arc spring one-to-one be the turn-ups, and its circumference equipartition has the inboard turn-ups and the flexible restriction device of outer protruding claw with arc spring one-to-one including first push-and-pull rod and the first push-and-pull rod of second push-and-pull rod first push rod including the first spring holder of connection, the spring is interior to be the spout, outer protruding claw is fixed corresponding first spring holder on the holder with the turn-ups, set up flexible spout second push rod on the first spring holder and including the spring interior slide bar that connects gradually, second spring holder and telescopic link, spring sleeve is established in spring interior slide bar and spring interior slide bar in spring sliding connection, and spring one end supports and lean on the telescopic link between first spring holder and the second spring holder and adjacent flexible spout sliding connection of flexible restriction device. The invention avoids tilting of the middle section of the spring, ensures that the size of the spring is kept qualified, and is convenient to assemble.

Description

Clutch assembly

Technical Field

The invention relates to the field of mechanical connection of clutches, in particular to a clutch assembly.

Background

In the field of friction plate type one-way clutches, because the spring is difficult to guarantee in the assembly process assembly style, the spring cover and the spring pad are generally adopted to limit the spring, but in operation, when the spring receives larger compression force, the middle section of the spring can tilt, the spring size is kept unqualified, the torsion characteristic of a locking clutch can be influenced under large torque, and the service life of the spring can be influenced for a long time. Under the condition that the spring can not be ensured, even the clutch is invalid, after the clutch is invalid, the process of repairing the clutch is complicated, and the manufacturing cost of the clutch is increased, so that the market competitiveness of the product is finally reduced.

Disclosure of Invention

The invention provides a clutch assembly for solving the problem that the size of a clutch spring cannot be kept qualified in the prior art.

The technical scheme of the invention is as follows:

a clutch assembly is characterized in that: the device comprises a driven plate, a retainer, a plurality of arc springs and a plurality of expansion limiting devices which are matched with the arc springs one by one, wherein the retainer is fixedly connected to the periphery of the driven plate;

the outer circumference side of the retainer is an outward flange, the circumference of the retainer is uniformly provided with an inner flange and an outward protruding claw which are matched with the arc springs one by one, and the outward flange and the inner flange fix the corresponding arc springs on the retainer;

the telescopic limiting device comprises a first push-pull rod and a second push-pull rod, and the whole formed by the first push-pull rod and the second push-pull rod is arc-shaped; the first push-pull rod comprises a first spring seat and a spring inner sliding groove which are connected, the corresponding first spring seat is fixed on the retainer by the outer protruding claw and the outer flanging, and the first spring seat is provided with a telescopic sliding groove; the second push-pull rod comprises an intra-spring sliding rod, a second spring seat and a telescopic rod which are sequentially connected, and the intra-spring sliding rod is in sliding connection with the intra-spring sliding groove;

the arc spring is sleeved on the spring inner sliding groove and the spring inner sliding rod, one end of the arc spring is abutted against the first spring seat, and the other end of the arc spring is abutted against the second spring seat;

the telescopic limiting devices are connected end to end, and the telescopic rods are in sliding connection with the telescopic sliding grooves of the adjacent telescopic limiting devices.

Further, the in-spring sliding groove is a circular arc sliding rail, a sliding block is arranged on the in-spring sliding bar and is in sliding fit with the circular arc sliding rail, and the in-spring sliding bar can slide in the in-spring sliding groove through the sliding block.

Further, the telescopic rod is a circular arc-shaped rod, the telescopic chute is a chute with an opening at the free end, and the telescopic rod can slide in the telescopic chute of the adjacent telescopic limiting device.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the invention, the arc-shaped spring is limited between the outward flange and the inward flange through the telescopic limiting device, the in-spring sliding rod and the in-spring sliding groove are sleeved in the arc-shaped spring, and the in-spring sliding rod of the second push-pull rod slides in the in-spring sliding groove of the first push-pull rod along with telescopic deformation of the arc-shaped spring, and simultaneously the telescopic rod slides in the telescopic sliding groove of the adjacent telescopic limiting device, so that the arc-shaped spring can be ensured to deform uniformly along the directions of the in-spring sliding rod and the in-spring sliding groove.

(2) Compared with the existing mode of adopting a spring cover and a spring pad to keep a spring, the telescopic limiting device has the advantages of simple structure, fewer parts, low manufacturing cost and convenient assembly.

Drawings

FIG. 1 is a schematic view of a structure of a holder according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a telescopic limiting device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a clutch assembly according to an embodiment of the present invention;

in the figure: the novel spring comprises a 1-driven plate, a 2-retainer, a 2-1-inner flanging, a 2-2 outer protruding claw, a 3-expansion limiting device, a 31-first push-pull rod, a 311-first spring seat, a 3111-expansion sliding groove, a 312-in-spring sliding groove, a 32-second push-pull rod, a 321-in-spring sliding rod, a 3211-sliding block, a 322-second spring seat, a 323-expansion rod, a 4-rivet and a 5-arc spring.

Detailed Description

The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.

As shown in fig. 1-3, a clutch assembly is characterized in that: the device comprises a driven plate 1, a retainer 2, three arc springs 5 and three telescopic limiting devices 3 which are matched with the arc springs 5 one by one, wherein the retainer 2 is fixedly connected to the periphery of the driven plate 1;

the outer circumference side of the retainer 2 is provided with an outward flange 2-3, the circumference of the retainer is uniformly provided with an inward flange 2-1 and an outward protruding claw 2-2 which are matched with the arc springs 5 one by one, and the outward flange 2-3 and the inward flange 2-1 fix the corresponding arc springs 5 on the retainer 2;

the telescopic limiting device 3 comprises a first push-pull rod 31 and a second push-pull rod 32, and the whole formed by the first push-pull rod 31 and the second push-pull rod 32 is arc-shaped; the first push-pull rod 31 comprises a first spring seat 311 and a spring inner chute 312 which are connected, the corresponding first spring seat 311 is fixed on the retainer 2 by the outer protruding claw 2-2 and the outer flanging 2-3, and a telescopic chute 3111 is arranged on the first spring seat 311; the second push-pull rod 32 comprises an in-spring sliding rod 321, a second spring seat 322 and a telescopic rod 323 which are sequentially connected, the in-spring sliding groove 312 is a circular arc sliding rail, a sliding block 3211 is arranged on the in-spring sliding rod 321, the sliding block 3211 is in sliding fit with the circular arc sliding rail, and the in-spring sliding rod 321 can slide in the in-spring sliding groove 312 through the sliding block 3211;

the arc-shaped spring 5 is sleeved on the intra-spring sliding groove 312 and the intra-spring sliding rod 321, one end of the arc-shaped spring 5 is abutted against the first spring seat 311, and the other end is abutted against the second spring seat 322;

the telescopic limiting devices 3 are connected end to end, the telescopic rod 323 is a circular arc rod, the telescopic chute 3111 is a chute with an opening at the free end, and the telescopic rod 323 can slide in the telescopic chute 3111 of the adjacent telescopic limiting device 3.

The foregoing disclosure is merely illustrative of specific embodiments of the invention, however, the embodiments of the invention are not limited thereto,

any variations that would be appreciated by one skilled in the art would fall within the scope of the invention.

Claims

1. A clutch assembly, characterized in that: the device comprises a driven plate (1), a retainer (2), three arc springs (5) and three telescopic limiting devices (3) which are matched with the arc springs (5) one by one, wherein the retainer (2) is fixedly connected to the periphery of the driven plate (1);

the outer circumferential side of the retainer (2) is provided with an outward flange (2-3), the circumference of the retainer is uniformly provided with an inward flange (2-1) and an outward protruding claw (2-2) which are matched with the arc springs (5) one by one, and the outward flange (2-3) and the inward flange (2-1) fix the corresponding arc springs (5) on the retainer (2);

the telescopic limiting device (3) comprises a first push-pull rod (31) and a second push-pull rod (32), and the whole formed by the first push-pull rod (31) and the second push-pull rod (32) is arc-shaped; the first push-pull rod (31) comprises a first spring seat (311) and a sliding groove (312) which are connected, the corresponding first spring seat (311) is fixed on the retainer (2) by the outer protruding claw (2-2) and the outer flanging (2-3), and a telescopic sliding groove (3111) is formed in the first spring seat (311); the second push-pull rod (32) comprises an intra-spring sliding rod (321), a second spring seat (322) and a telescopic rod (323) which are sequentially connected, and the intra-spring sliding rod (321) is in sliding connection with the intra-spring sliding groove (312);

the arc-shaped spring (5) is sleeved on the inner spring sliding groove (312) and the inner spring sliding rod (321), one end of the arc-shaped spring (5) is abutted against the first spring seat (311), and the other end is abutted against the second spring seat (322);

the telescopic limiting devices (3) are connected end to end, and the telescopic rod (323) is in sliding connection with the telescopic chute (3111) of the adjacent telescopic limiting device (3);

the spring inner sliding groove (312) is a circular arc sliding rail, a sliding block (3211) is arranged on the spring inner sliding groove (321), and the sliding block (3211) is in sliding fit with the circular arc sliding rail.

2. The clutch assembly of claim 1, wherein: said telescopic link (323)

The telescopic chute (3111) is a chute with an opening at the free end.