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Air booster pump

An afterburner pump and air technology, applied in the direction of hydraulic brake transmission, etc., can solve the problems of hydraulic cylinder, hydraulic piston corrosion, unreasonable cylinder structure, hydraulic sealing cup damage, etc., to prevent dust pollution, avoid Direct impact, good sealing effect

Inactive Publication Date: 2012-09-19
WUHU HUANQIU AUTO PARTS
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The air booster pump was imported from the United States in the 1980s for domestic production of Caterpillar construction machinery. In actual use, due to the harsh working conditions and frequent braking of the loader, the reliability of the product is extremely demanding. High, but in the original design, oil escaped from the oil cup cover, the hydraulic cylinder block and hydraulic piston were corroded, blocked and stuck, the hydraulic sealing cup was damaged, and the structure of the cylinder block was unreasonable, so the purpose of dust prevention could not be achieved

Method used

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Embodiment Construction

[0019] see figure 1 and 2 , air booster pump, is made up of air chamber cylinder block 4 and hydraulic cylinder block 3.

[0020] A push rod assembly is arranged inside the air chamber cylinder body 4 , and one end of the push rod assembly is connected with the piston 10 in the hydraulic cylinder body 3 .

[0021] The piston 10 is placed in the hydraulic cylinder body 3 , and one end of the piston 10 has a taper. The surface of the piston 10 is provided with an oil injection hole, and the oil injection hole is connected to the oil cup assembly 8 .

[0022] The oil cup assembly 8 is a cylindrical cup body, the inner wall of the oil cup assembly 8 is provided with an air bag sheet 9, and the top cover of the oil cup assembly 8 is provided with an air groove 7 communicating with the air.

[0023] The air chamber cylinder block 4 and the hydraulic cylinder block 3 are connected by bolts 6, and a sealing ring 5 is provided at the contacting part.

[0024] The hydraulic cylinder...

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Abstract

The invention relates to an air booster pump and belongs to the field of brake technology of construction machinery. The air booster pump consists of an air chamber cylinder body and a hydraulic cylinder body, wherein a push rod assembly is arranged in the air chamber cylinder body; one end of the push rod assembly is connected with a piston in the hydraulic cylinder body; the piston is arranged in the hydraulic cylinder body; one end of the piston has a taper; an oil filling hole is formed in the surface of the piston; and the oil filling hole is connected with an oil cup assembly. A breathing bag membrane and an oil cup cover inner wall air groove are arranged on the oil cup assembly, so that oil is freely filled in and poured out, and the phenomenon that brake liquid is sprayed out is eliminated. A hydraulic cylinder and a hydraulic piston are made from a high-strength aluminum alloy but not an HT200 pig iron casting any more, so that blockage and dead lock which are caused by rusting are avoided, and a failure caused by abrasion of a sealing component is avoided. The hydraulic cylinder body is formed by a cold extrusion process, so that the precision is high, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to an air booster pump, which belongs to the technical field of engineering machinery braking. Background technique [0002] The air booster pump was imported from the United States in the 1980s for domestic production of Caterpillar construction machinery. In actual use, due to the harsh working conditions and frequent braking of the loader, the reliability of the product is extremely demanding. High, but in the original design, there is oil leaking from the oil cup cover, the hydraulic cylinder block and hydraulic piston are corroded, blocked and stuck, the hydraulic sealing cup is damaged, and the structure of the cylinder block is unreasonable, so the purpose of dust prevention cannot be achieved. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides an air booster pump with excellent performance. [0004] The technical scheme that the present invention ad...

Claims

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Application Information

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IPC IPC(8): B60T11/10
Inventor 张天松胡仁农
Owner WUHU HUANQIU AUTO PARTS
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