CN113719552B - a clutch assembly - Google Patents

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

a clutch assembly

technical field

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

Background technique

In the field of friction plate one-way clutches, because it is difficult to ensure the assembly style of the spring during the assembly process, the spring cover and spring pad are generally used to limit the spring. However, when the spring is under a large compression force during work, the middle part of the spring will warp. It will cause the size of the spring to remain unqualified, which will affect the torsional characteristics of the lock-up clutch under high torque, and will also affect the life of the spring for a long time. If the spring retention cannot be guaranteed, it may even cause the clutch to fail. After the failure, the process of repairing, cutting and repairing is not only cumbersome, but also increases the manufacturing cost of the clutch, and ultimately reduces the market competitiveness of the product.

Contents of the invention

In order to solve the problem in the prior art that the size of the clutch spring cannot be guaranteed to be qualified, the present invention proposes a clutch assembly.

Technical solution of the present invention is:

A clutch assembly, which is special in that it includes a driven plate, a cage, a plurality of arc springs, and a plurality of expansion and contraction limiting devices that match the arc springs one by one, and the cage is fixedly connected to the driven plate peripheral;

The outer circumferential side of the cage is an outer flange, and its circumference is evenly distributed with inner flanges and outer claws that match the arc springs one by one. The outer flange and the inner flange connect the corresponding The arc spring is fixed on the cage;

The telescoping limiting device includes a first push-pull rod and a second push-pull rod, the whole formed by the first push-pull rod and the second push-pull rod is arc-shaped; the first push-pull rod includes a connected first spring seat, a spring inner The chute, the protruding claws and the outward flange fix the corresponding first spring seat on the cage, and the first spring seat is provided with a telescopic chute; the second push-pull rod includes sequentially The connected spring inner sliding rod, the second spring seat and the telescopic rod, the spring inner sliding rod is slidably connected with the spring inner chute;

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

The plurality of telescopic restricting devices are connected end to end, and the telescopic rod is slidably connected to the telescopic chute of the adjacent telescopic restricting device.

Further, the chute in the spring is an arc-shaped slide rail, and a slide block is arranged on the slide bar in the spring, and the slide block is slidably matched with the arc-shaped slide rail, and the slide bar in the spring can be moved through the slide block. Sliding on the chute in the spring.

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

Compared with the prior art, the present invention has the beneficial effects as follows:

(1) In the present invention, the arc spring is limited between the outer flanging and the inner flanging by the telescopic limiting device, and the inner slide bar and the inner chute of the spring are sleeved in the arc spring. Telescopic deformation, the sliding rod in the spring of the second push-pull rod slides in the chute in the spring of the first push-pull rod, and at the same time, the telescopic rod slides in the telescopic chute of the adjacent telescopic limiting device, which can ensure that the arc spring moves along the spring The direction of the sliding rod and the chute in the spring deform evenly. Compared with the existing method of using the spring cover and the spring pad to hold the spring, the present invention avoids the middle section of the spring from warping and ensures that the spring size remains qualified.

(2) Compared with the existing method of using a spring cover and a spring pad to hold the spring, the telescopic limiting device of the present invention has a simple structure, fewer parts, low cost and convenient assembly.

Description of drawings

Fig. 1 is the structural representation of cage in the embodiment of the present invention;

Fig. 2 is a schematic structural view of the expansion and contraction limiting device in the embodiment of the present invention;

Fig. 3 is the structural representation of clutch assembly in the embodiment of the present invention;

In the figure: 1-driven plate, 2-cage, 2-1-inside flanging, 2-2 protruding claw, 3-telescopic limiting device, 31-first push-pull rod, 311-first spring seat, 3111 -Telescopic chute, 312-Inner spring chute, 32-Second push-pull rod, 321-Inner spring slide rod, 3211-Slider, 322-Second spring seat, 323-Telescopic rod, 4-Rivet, 5-Arc shape spring.

Detailed ways

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

As shown in Figure 1-3, a clutch assembly is special in that it includes a driven plate 1, a cage 2, three arc springs 5, and three expansion and contraction limits that match the arc springs 5 one by one. The device 3, the cage 2 is fixedly connected to the outer periphery of the driven plate 1;

The outer peripheral side of the cage 2 is an outer flange 2-3, and its circumference is evenly distributed with an inner flange 2-1 and an outer protruding claw 2-2 that match the arc springs 5 one by one, and the outer flange 2-3 Fix the corresponding arc spring 5 on the cage 2 with the inner flanging 2-1;

The retractable restricting 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 connected first spring seat 311, a spring The inner chute 312, the outer protruding claw 2-2 and the outer flange 2-3 fix the corresponding first spring seat 311 on the cage 2, and the first spring seat 311 is provided with a telescopic chute 3111; the second push-pull rod 32 comprises the slide bar 321, the second spring seat 322 and the telescoping bar 323 connected successively in the spring, the chute 312 in the spring is an arc-shaped slide rail, the slide bar 321 is provided with a slide block 3211 in the spring, and the slide block 3211 and the arc Shaped slide rail sliding fit, the slide bar 321 in the spring can slide in the chute 312 in the spring through the slide block 3211;

The arc spring 5 is sleeved on the spring inner chute 312 and the inner spring sliding rod 321, and one end of the arc spring 5 leans against the first spring seat 311, and the other end leans against the second spring seat 322;

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

The above disclosures are only specific embodiments of the present invention, but the embodiments of the present invention are not limited thereto.

Any changes conceivable by those skilled in the art shall fall within the protection scope of the present invention.

Claims (2)

1. A clutch assembly, characterized in that: it includes a driven plate (1), a cage (2), three arc springs (5) and three stretching limiters that match the arc springs (5) one by one device (3), the cage (2) is fixedly connected to the outer periphery of the driven plate (1); The outer peripheral side of the cage (2) is an outer flange (2-3), and its circumference is evenly distributed with inner flanges (2-1) and outer protruding claws that match the arc springs (5) one by one (2-2), the outer flanging (2-3) and the inner flanging (2-1) fix the corresponding arc spring (5) on the cage (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 The first push-pull rod (31) includes a connected first spring seat (311) and a spring inner chute (312), and the outer protruding claw (2-2) and the outer flange (2-3) will correspond to The first spring seat (311) is fixed on the cage (2), and a telescopic chute (3111) is opened on the first spring seat (311); the second push-pull rod (32) includes sequentially connected Slide bar (321), the second spring seat (322) and telescoping link (323) in the spring, described spring inner slide bar (321) is slidably connected with the chute (312) in the spring; The arc spring (5) is sheathed on the spring inner chute (312) and the inner spring sliding rod (321), and one end of the arc spring (5) leans against the first spring seat ( 311), the other end leans against the second spring seat (322); The multiple telescopic limiting devices (3) are connected end to end, and the telescopic rod (323) is slidably connected to the telescopic chute (3111) of the adjacent telescopic limiting device (3); The chute (312) in the spring is an arc-shaped slide rail, and a slide block (3211) is arranged on the slide rod (321) in the spring, and the slide block (3211) is slidingly matched with the arc-shaped slide rail. 2. The clutch assembly according to claim 1, characterized in that: the telescopic rod (323) It is an arc-shaped rod, and the telescopic chute (3111) is a chute with an open free end.

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