Inflatable type damper floating piston sealing structure

A floating piston, sealing structure technology, applied in shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of reduced piston movement sensitivity, large frictional resistance, and shortened service life of shock absorbers, so as to improve the Sensitivity and stability, improve service life, prevent mutual leakage effect

Inactive Publication Date: 2016-06-15
XINXIANG XINHUA HYDRAULIC MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current sealing structure of the floating piston of the gas-filled shock absorber mainly adopts the O-ring sealing structure, and the main disadvantages are that the frictional resistance is large, gas and liquid are prone to mutual leakage, and the movement sensitivity of the piston is reduced.
Not only the shock absorption performance is poor, but also the O-ring is easy to wear, reducing the service life of the entire shock absorber

Method used

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  • Inflatable type damper floating piston sealing structure

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Embodiment Construction

[0007] The embodiment is described in detail in conjunction with the accompanying drawings. It is that an annular guide belt 2 is respectively installed on the outer wall circumference of the floating piston 6 between the hydraulic chamber 8 and the air pressure chamber 7 in the cavity of the piston rod 1 of a pneumatic shock absorber. A gas-liquid sealing ring 4 is fixed on the outer wall middle circumference of the floating piston, and a hole seal 3 and 5 with opposite sealing directions is respectively installed between the gas-liquid sealing ring and the two guide bands. The purpose of setting the sealing ring in the middle of the outer wall of the floating piston is to prevent the hydraulic oil and high-pressure gas on the left and right sides from leaking each other. The guide belt is used to prevent the floating piston from scraping against the inner wall of the piston rod and destroying its sealing performance when the floating piston is subjected to external force. The...

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Abstract

The invention discloses a floating piston sealing structure of an inflatable shock absorber. For the annular guide belt, a gas-liquid sealing ring is fixed on the middle circumference of the outer wall of the floating piston; The invention can not only improve the sensitivity and stability of the movement of the floating piston and the piston rod, but also has good wear resistance, prevents the mutual leakage of internal hydraulic oil and high-pressure gas, and improves the overall service life.

Description

Technical field: [0001] The invention relates to a floating piston sealing structure of an air-filled shock absorber installed on a vehicle. Background technique: [0002] With the increase of vehicles, higher requirements are put forward for the stability of vehicles in driving and the comfort of drivers and passengers. The current sealing structure of the floating piston of the gas-filled shock absorber mainly adopts an O-ring sealing structure. The main disadvantages are that the frictional resistance is large, gas and liquid are prone to mutual leakage, and the movement sensitivity of the piston is reduced. Not only the shock absorption performance is poor, but also the O-ring is easy to wear, reducing the service life of the entire shock absorber. Invention content: [0003] The object of the present invention is to provide a floating piston sealing structure of an air-filled shock absorber with a reasonable structure, which not only improves the moving sensitivity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/36
CPCF16F9/368
Inventor 杜志朋李立李越杰樊亚谱赵安
Owner XINXIANG XINHUA HYDRAULIC MACHINERY CO LTD
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