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Air boost pump of engineering mechanical braking system

A technology of braking system and construction machinery, applied in the direction of brake, brake transmission, reservoir layout, etc., can solve the problems of reducing product durability, wear of gas piston apron, harsh working environment of loader, etc., to overcome the early stage Effects of wear, improved reliability and durability

Inactive Publication Date: 2012-05-02
WUHU SHENGLI TECH SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the harsh working environment of the loader, the respirator of the booster pump in the prior art cannot be completely isolated from the outside air, and the internal pollution of the cylinder block is serious, causing early wear of the gas piston apron and reducing the durability of the product

Method used

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  • Air boost pump of engineering mechanical braking system
  • Air boost pump of engineering mechanical braking system
  • Air boost pump of engineering mechanical braking system

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Embodiment Construction

[0016] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0017] Such as figure 1 , figure 2 and image 3 According to the structure of the present invention expressed, the present invention is an air booster pump for the braking system of construction machinery, including a cylinder and a brake oil cylinder. The cylinder includes a cylinder housing, an air piston 1, an air piston return spring 4, Oil cylinder connection cover 6; the cylinder housing is connected with the brake cylinder through the oil cylinder connection cover 6; the two ends of the air piston return spring 4 are respectively in contact with the end faces of the air piston 1 and the oil cylinder connection cover 6; Th...

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Abstract

The invention discloses an air boost pump of an engineering mechanical braking system. The air boost pump comprises a cylinder and a braking oil cylinder, wherein the cylinder comprises a cylinder shell, an air piston, an air piston return spring and an oil cylinder connecting cover; a piston rod of the gas piston passes through a hole of the oil cylinder connecting cover and is connected with an oil piston of the braking oil cylinder; a rodless cavity and a rod cavity are formed in the cylinder; an air inlet of the air boost pump is communicated with the rodless cavity of the cylinder; a two-way valve assembly is arranged on the air piston; and a one-way valve assembly (5) is arranged on the oil cylinder connecting cover. With the adoption of the above technical scheme, dust gas of an external severe environment cannot enter an air chamber by using a structure of an internal respiration type boost pump and working principles of a one-way valve and a two-way valve; as long as an air source is ensured to be clean, the cylinder can be ensured not to be polluted, the cleanness of the air chamber is guaranteed, premature wear of an air piston leather ring is overcome, and the product reliability and durability are improved.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and relates to the technology of the braking system of the engineering machinery. More specifically, the invention relates to an air booster pump of the braking system of the engineering machinery. Background technique [0002] Due to the harsh working environment of the loader, the respirator of the booster pump in the prior art cannot be completely isolated from the outside air, and the inside of the cylinder block is seriously polluted, which causes early wear of the gas piston apron and reduces the durability of the product. Contents of the invention [0003] The problem to be solved by the present invention is to provide an air booster pump for engineering machinery brake system, and the purpose of the invention is to improve the reliability of the air booster pump product. [0004] In order to achieve the above object, the technical scheme that the present invention takes is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/40B60T17/06
Inventor 乔跃平殷国柱叶新年王华王安芝左新珍张兆铭张忠兴樊节群彭涛
Owner WUHU SHENGLI TECH SHARES
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