Outer circular-arc surface tension device for brake shoes
A technology of tensioning device and brake shoe, which is applied in the field of brake shoes, can solve the problems that the support force cannot play a tensioning role, change the appearance size of the shoe, and the support force is too rigid, etc., to achieve simple structure, correct size error, maintain Effect of Arc Dimensional Accuracy
Pending Publication Date: 2018-11-20
故城县赛之顺制动元件有限公司
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Problems solved by technology
The existing tensioning device uses a screw rod that can be adjusted in length to tighten the ferrule. The supporting force of this tensioning device is too rigid, and the strength is not easy to control. The supporting force is too small to play a tensioning role. It is easy to change the appearance size of the outer arc surface of the shoe
Method used
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Embodiment Construction
[0018] The structure and working principle of the tensioning device for the outer circular arc surface of the brake shoe provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0019] see figure 1 , is a structural schematic diagram of an outer arc surface tensioning device for a brake shoe provided by the present invention. The structure constituting the tensioning device is mainly composed of a ferrule 1 surrounding the outer arc surface A1 of the brake shoe, and a tensioning mechanism arranged in the ferrule 1, wherein the tensioning mechanism includes a steel back for supporting the brake shoe The leg 2 of A2 is set on one end of the elastic telescopic rod 4 through the first coupling block 31 , and the other end of the elastic telescopic rod 4 is tensioned on the ferrule 1 through the second coupling block 32 .
[0020] Its working principle is as follows: First, place the brake shoe with the friction l...
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The invention belongs to the technical field of brake shoes, and particularly relates to an outer circular-arc surface tension device for brake shoes, and the outer circular-arc surface tension deviceis used for strengthening bonding between arc-shaped mounting plates of the brake shoes and a friction lining as well as correcting of outer circular-arc surfaces. According to the technical scheme adopted by the invention, the outer circular-arc surface tension device is mainly composed of a sleeve ring which surrounds the outer circular-arc surfaces of the brake shoe plates and a tension mechanism which is arranged in the sleeve ring, wherein the tension mechanism comprises supporting pins for supporting steel backs of the brake shoe plates, the supporting pins are arranged at one end of anelastic telescopic pole through first connecting blocks, and the other end of the elastic telescopic pole tensions the sleeve ring through a second connecting block. The tension device has the characteristics of strengthening bonding between the arc-shaped mounting plates of the brake shoes and the friction lining, being simple in structure and convenient in use.
Description
technical field [0001] The invention belongs to the technical field of brake shoes, and in particular relates to a tensioning device for an outer arc surface of a brake shoe, which is used for strengthening the bonding between a brake shoe arc mounting plate and a friction lining and correcting the outer arc surface. Background technique [0002] The brake shoe is an accessory that is pushed outward by the force of the brake cam or push rod to suppress the brake drum to exert the braking effect. It is installed on the brake drum and is one of the key safety parts in the automobile brake system. The shape of the brake shoe is like a half-moon. When the brake is stepped on, the two half-moon-shaped brake shoes are stretched out under the action of the brake wheel cylinder, and the brake shoes are propped up to rub against the inner wall of the brake drum to slow down or stop. [0003] In the process of manufacturing the brake shoe, the friction plate needs to be fixed to the a...
Claims
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IPC IPC(8): F16D69/04F16B11/00
CPCF16B11/006F16D69/0416F16D2069/0491F16D2069/0466
Inventor 张春峰李晓
Owner 故城县赛之顺制动元件有限公司