CN113719552A

CN113719552A - Clutch assembly

Info

Publication number: CN113719552A
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: 2021-11-30
Anticipated expiration: 2041-08-12
Also published as: CN113719552B

Abstract

A clutch assembly comprises a driven plate, a retainer, a plurality of arc springs and a plurality of expansion limiting device retainers which are matched with the arc springs one by one, wherein the outer circumference side of each retainer is provided with an outward flange, the circumference of the spring seat is evenly provided with an inner side flanging and an outer protruding claw expansion limiting device which are matched with the arc-shaped spring one by one, the device comprises a first push-pull rod and a second push-pull rod, the first push rod of the first push-pull rod and the second push rod of the second push-pull rod comprise a first spring seat and an inner spring chute which are connected, the outer protruding claw and the outer flanging fix the corresponding first spring seat on the retainer, the first spring seat is provided with an expansion chute, the second push rod of the expansion chute comprises an inner spring slide bar, a second spring seat and an expansion link which are connected in sequence, the inner spring slide bar and the inner spring chute are connected in a sliding way, the spring sleeves are arranged on the inner spring chute and the inner spring slide bar, and one end of the spring is abutted against the telescopic chute of the telescopic rod and the adjacent telescopic limiting device between the first spring seat and the second spring seat in a sliding connection mode. The invention avoids the upwarp of the middle section of the spring, ensures the dimension of the spring to be 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 friction plate type one-way clutch field, because the spring is difficult to guarantee in the assembly process assembly pattern, generally adopt spring lid and spring pad to carry on spacingly to the spring, but in the work when the spring is receiving great compressive force, the spring middle section can the perk, causes the spring size to keep unqualified, can influence the torsional characteristics of lockup clutch under the big moment of torsion, also can influence the life-span of spring for a long time. Under the condition that the spring keeps unable guaranteeing, can lead to the clutch to become invalid even, after becoming invalid, the process that reprocesses and dissects the repairation is not only loaded down with trivial details to can make the manufacturing cost of clutch rise, finally reduce the market competition of product.

Disclosure of Invention

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

The technical solution of the invention is as follows:

a clutch assembly characterized in that: the telescopic limiting device comprises a driven plate, a retainer, a plurality of arc springs and a plurality of telescopic 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 of the retainer is provided with an outward flange, the circumference of the retainer is uniformly provided with an inward flange and an outward protruding claw which are matched with the arc-shaped springs one by one, and the outward flange and the inward flange fix the corresponding arc-shaped springs on the retainer;

the telescopic limiting device comprises a first push-pull rod and a second push-pull rod, and the first push-pull rod and the second push-pull rod form an arc shape as a whole; the first push rod comprises a first spring seat and an in-spring sliding groove which are connected, the outer protruding claw and the outer flanging fix the corresponding first spring seat on the retainer, and the first spring seat is provided with a telescopic sliding groove; the second push rod comprises an in-spring slide rod, a second spring seat and a telescopic rod which are connected in sequence, and the in-spring slide rod is connected with the in-spring sliding groove in a sliding manner;

the spring is sleeved on the in-spring sliding groove and the in-spring sliding rod, one end of the spring abuts against the first spring seat, and the other end of the spring abuts against the second spring seat;

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

Furthermore, the in-spring sliding groove is an arc-shaped sliding rail, a sliding block is arranged on the in-spring sliding rod, the sliding block is in sliding fit with the arc-shaped sliding rail, and the in-spring sliding rod can slide in the in-spring sliding groove through the sliding block.

Further, the telescopic link is a circular arc-shaped rod, the telescopic sliding groove is a sliding groove with an opening at a free end, and the telescopic link can slide in the telescopic sliding groove 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 outer flanging and the inner flanging through the telescopic limiting device, the in-spring sliding rod and the in-spring sliding groove are sleeved in the arc-shaped spring, along with the telescopic deformation of the arc-shaped spring, the in-spring sliding rod of the second push rod slides in the in-spring sliding groove of the first push rod, and meanwhile, 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 be uniformly deformed along the directions of the in-spring sliding rod and the in-spring sliding groove.

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

Drawings

FIG. 1 is a schematic structural view of a cage 2 according to an embodiment of the present invention;

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

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

in the figure: 1-driven plate, 2-retainer, 2-1-inside flanging, 2-2 external protruding claw, 3-telescopic limiting device, 31-first push-pull rod, 311-first spring seat, 3111-telescopic chute, 312-spring internal chute, 32-second push rod, 321-spring internal slide rod, 3211-slide block, 322-second spring seat, 323-telescopic rod, 4-rivet and 5-spring.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

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

the outer circumference of the retainer 2 is provided with an outward flange 2-3, the circumference of the retainer is evenly provided with an inner flange 2-1 and an outward protruding claw 2-2 which are matched with the arc-shaped spring 5 one by one, and the outward flange 2-3 and the inner flange 2-1 fix the corresponding arc-shaped spring 5 on the retainer 2;

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

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

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

The above disclosure is only for the specific embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.

Claims

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

the outer circumference of the retainer (2) is provided with outward flanges (2-3), the circumferences of the outward flanges are uniformly provided with inward flanges (2-1) and outward protruding claws (2-2) which are matched with the arc springs (5) one by one, and the outward flanges (2-3) and the inward flanges (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 rod (31) comprises a first spring seat (311) and an inner spring sliding groove (312) which are connected, the corresponding first spring seat (311) is fixed on the retainer (2) through the outer protruding claw (2-2) and the outer flanging (2-3), and the first spring seat (311) is provided with a telescopic sliding groove (3111); the second push rod (32) comprises an in-spring sliding rod (321), a second spring seat (322) and a telescopic rod (323) which are connected in sequence, and the in-spring sliding rod (321) is connected with the in-spring sliding groove (312) in a sliding manner;

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

the telescopic limiting devices (3) are connected end to end, and the telescopic rods (323) are connected with the telescopic sliding grooves (3111) of the adjacent telescopic limiting devices (3) in a sliding mode.

2. The clutch assembly of claim 1, wherein: the in-spring sliding groove (312) is an arc-shaped sliding rail, a sliding block (3211) is arranged on the in-spring sliding rod (321), and the sliding block (3211) is in sliding fit with the arc-shaped sliding rail.

3. The clutch assembly of claim 1, wherein: the telescopic rod (323) is a circular arc rod, and the telescopic sliding groove (3111) is a sliding groove with an opening at a free end.