A spring braking device with breathing structure

A braking device with breathing technology, applied in valve devices, brake actuators, engine components, etc., can solve the problems of garbage and water flowing into the interior of the brake air chamber, rusting of metal parts, and diaphragm failure, etc. Achieve the effect of reducing the entry of moisture and dust, prolonging the service life, and facilitating disassembly and installation

Active Publication Date: 2018-08-03
ZHEJIANG VIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing service braking mechanism, especially the spring braking mechanism, includes a brake air chamber inside, and the brake air chamber is provided with a breathing port to directly communicate with the outside atmosphere. When the brake air chamber is working, the brake air chamber When the air pressure increases or decreases, the exhaust and air intake of the brake chamber are realized through the breathing port. Since the breathing port in the prior art is directly connected to the atmosphere, it is easy to cause garbage and water in the air to flow into the brake chamber If the water is not drained in time, the diaphragm in the brake mechanism will fail early. In addition, after the water enters the brake air chamber, it will cause the metal parts such as springs and gaskets in the brake air chamber to rust, issue card

Method used

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  • A spring braking device with breathing structure
  • A spring braking device with breathing structure
  • A spring braking device with breathing structure

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Embodiment Construction

[0022] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0023] refer to figure 1 , the spring brake device in the prior art includes a driving chamber 1 and a brake chamber 2, a diaphragm 10 is arranged between the driving chamber 1 and the braking chamber 2, and the driving chamber 1 is provided with an air inlet of the driving chamber. A piston rod 22 and a compression spring 23 are arranged in the dynamic air chamber 2, and a breathing port 21 communicating with the outside world is provided in the brake air chamber 2. When the br...

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Abstract

The invention discloses a spring braking device with a breathing structure. The spring braking device comprises a braking air chamber, a breathing opening communicated with the outside is formed in the braking air chamber, and a breathing structure used for keeping air pressure in the braking air chamber and outside air pressure to be balanced is arranged at the position, where the breathing opening is located, of the exterior of the braking air chamber; the breathing structure comprises an air exhaust device for exhausting air in the braking air chamber to outside; an air inlet device for feeding outside air to the braking air chamber is arranged on the air exhaust device; the service life of the braking air chamber and a travelling cavity is prolonged; and meanwhile the rusting probability of the braking device is decreased.

Description

【Technical field】 [0001] The invention relates to a spring brake device with breathing structure. 【Background technique】 [0002] The existing service brake mechanism, especially the spring brake mechanism, includes a brake air chamber inside, and the brake air chamber is provided with a breathing port to directly communicate with the outside atmosphere. When the brake air chamber is working, the brake air chamber When the air pressure of the brake chamber increases or decreases, exhaust and air intake are realized through the breathing port. Since the breathing port in the prior art is directly connected to the atmosphere, it is easy to cause garbage and water in the air to flow into the brake chamber If the water is not discharged in time, it will cause the early failure of the diaphragm in the brake mechanism. In addition, after the water enters the brake air chamber, it will cause the metal parts such as springs and gaskets in the brake air chamber to rust, issue card. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/14F16D121/08F16D125/12F16K17/04F16K17/164
CPCF16D65/14F16D2121/08F16D2125/12F16K17/04F16K17/164
Inventor 吕芳刘双印姚玉丽
Owner ZHEJIANG VIE SCI & TECH
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