Booster pump for engineering mechanical brake system
A braking system and construction machinery technology, applied to pumps with flexible working elements, mechanical equipment, machines/engines, etc., can solve the problems of fuel injection, short life, poor anti-pollution ability of afterburner pumps, etc., and achieve enhanced Stability, avoiding dust entry, avoiding the effects of air bubbles
Active Publication Date: 2011-04-20
WUHU SHENGLI TECH SHARES
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Problems solved by technology
[0002] In the prior art, the verticality between the piston rod and the push rod of the commonly used air booster pump air chamber is guaranteed by the verticality of the joint surface, but it is difficult for the traditional booster pump to guarantee the verticality requirements after assembly; The brake fluid in the oil storage cup fluctuates greatly during the braking process, and the brake fluid is prone to bubbles and high temperature, which will cause oil injection during continuous braking; the traditional afterburner pump is resistant to Poor pollution ability and short life
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[0015] Referring to the accompanying drawings, through the description of the embodiments, the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the function and working principle of each part, and the manufacturing process And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.
[0016] Such as figure 1 The structure of the present invention expressed, the present invention is a booster pump of a construction machinery brake system, comprising a cylinder, a hydraulic cylinder and an oil storage cup 11, the air inlet 17 of the cylinder is connected with the air brake of the compressed air pump The air outlet of the valve is connected; the oil outlet 18 of the hydraulic cylinder is connected with t...
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The invention discloses a booster pump for an engineering mechanical brake system, which comprises a cylinder, a hydraulic cylinder and an oil storage cup, wherein an air inlet of the cylinder is connected with an air brake valve of a compressed air pump; an oil outlet of the hydraulic cylinder is connected with an oil inlet of a piston oil cylinder of a brake; and the cylinder is a diaphragm cylinder, namely a diaphragm is arranged in a cylinder shell of the cylinder, and the diaphragm is connected with a hydraulic piston in the hydraulic cylinder by a piston rod. By adopting the technical scheme, a connection mode of an air chamber is changed, the diaphragm structure is adopted, the diaphragm is deformed by means of air pressure during operating to push the piston to move, and the pollution of air sources and dust and the like entering the air chamber do not influence the air chamber of the booster pump; and a shutoff oil inlet valve controls brake fluid to enter and reflow, and the volume of the brake fluid in a fluid chamber is changed scarcely during the operating, so a fluid level in the oil storage cup during the movement of the brake fluid is invariant basically, the entering of the dust and the generation of air bubbles are avoided effectively, and the stability of the brake system is enhanced.
Description
technical field [0001] The invention belongs to the technical field of engineering machinery, and relates to a braking system in the engineering machinery. More specifically, the invention relates to an afterburner pump of the engineering machinery braking system. Background technique [0002] In the prior art, the verticality between the piston rod and the push rod of the commonly used air booster pump air chamber is guaranteed by the verticality of the joint surface, but it is difficult for the traditional booster pump to guarantee the verticality requirements after assembly; The brake fluid in the oil storage cup fluctuates greatly during the braking process, and the brake fluid is prone to bubbles and high temperature, which will cause oil injection during continuous braking; the traditional afterburner pump is resistant to Poor pollution ability and short life. Contents of the invention [0003] The problem to be solved by the present invention is to provide an after...
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IPC IPC(8): F04B45/053
Inventor 乔跃平叶新年王华李钢王安芝彭涛
Owner WUHU SHENGLI TECH SHARES