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Dust prevention mechanism used for vehicle suspension

A vehicle suspension and dustproof technology, applied in the field of auto parts, can solve the problems of inhaling dust and difficult to remove, and achieve the effect of reducing dust impurities, good dustproof, and improving installation efficiency

Inactive Publication Date: 2019-05-07
SICHUAN NINGJIANG SHANCHUAN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: because the lower end of the dust cover is closer to the ground, too much dust is sucked in, and it is difficult to get rid of, and the oil gas produced by the evaporation of the oil film on the surface of the piston rod first evaporates upwards and then is removed downwards. Oil stains are condensed on the outer surface of the shock absorber near the lower end of the dust cover. The present invention provides a dust-proof mechanism for vehicle suspension that solves the above problems

Method used

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  • Dust prevention mechanism used for vehicle suspension
  • Dust prevention mechanism used for vehicle suspension
  • Dust prevention mechanism used for vehicle suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a dust-proof mechanism for vehicle suspension. The main structure of the vehicle pillar is the same as that of the prior art, including a shock absorber 7, a piston rod 5 and a limit block 18. The lower end of the piston rod 5 is connected to the shock absorber. 7 connection, the upper end of the piston rod 5 is provided with a limit block 18, and also includes a spring seat 1, a spring pad 2, a dust cover 3 and a bellows 4, the top of the spring seat 1 is located at the top of the piston rod 5, and the spring pad 2 is superimposed on the lower end face of the spring seat 1 to support the upper end face of the spring 6. The specific improved structure is as follows: the downward extension end of the spring pad 2 is connected with the top end of the dust cover 3, the bottom end of the dust cover 3 extending downward along the axial direction of the piston rod 5 is connected with the top end of the bellows 4, and the bellows 4 is The bottom end of...

Embodiment 2

[0042] Further improvement on the basis of Example 1, the gas passage includes an exhaust hole 8, a dust removal groove 9 and a groove 10; the upper end of the dust cover 3 is connected with the lower end of the spring pad 2, and the lower end of the dust cover 3 It is connected with the bellows 4; the upper end surface of the dust cover 3 is provided with an annular groove 11 extending continuously in the circumferential direction, and the space between the annular groove 11 and the lower end surface of the spring seat 1 is the dust removal groove 9; on the dust cover 3 A plurality of exhaust holes 8 are also provided, and a plurality of exhaust holes 8 are distributed at intervals along the circumference of the dust cover 8, and the exhaust holes 8 are used to communicate with the external environment and the dust removal groove 9; A plurality of grooves 10 are arranged at the position corresponding to the dust removal groove 9, and the plurality of grooves 10 are distributed...

Embodiment 3

[0044] Further improvement on the basis of Embodiment 2, the spring seat 1 includes a cylindrical housing 101, an inclined extension section 102 and a horizontal extension section 103; the end of the vertically lower section of the cylindrical housing 101 is outwardly and upwardly inclined It extends into an inclined extension section 102, and the end of the inclined extension section 102 extends horizontally outward to form a horizontal extension section 103; the connection between the vertically downward section of the cylindrical shell 101 and the inclined extension section 102 is a downwardly concave arc-shaped transition section 104. The space between the ring groove 11 and the lower surface of the arc-shaped transition section 104 is the dust removal groove 9 ; the spring pad 2 is superimposed on the lower surface of the horizontal extension section 103 .

[0045] The outer edge of the upper end surface of the dustproof cover 3 is integrally formed and connected with the...

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Abstract

The invention discloses a dust prevention mechanism used for a vehicle suspension. The top end of a spring seat is located at the top end of a piston rod. A spring pad is arranged on the lower end surface of the spring seat in a stacked mode. The downward extending end of the spring pad is connected with the top end of a dustproof hood. The bottom end, extending downwards in the axis direction ofthe position rod, of the dustproof hood is connected with the top end of a corrugated pipe. The bottom end, extending downwards in the axis direction of the position rod, of the corrugated pipe is insealing connection with a damper. Both the dustproof hood and the corrugated pipe are arranged on the periphery of the outside of the piston rod. The space between a peripheral structure and an internal structure is a cavity A. A gas channel is formed by sequentially penetrating through the dustproof hood, the spring pad and the spring seat. Gas in the external environment enters and exits the cavity A through the gas channel. According to the dust prevention mechanism, the structures of the spring seat, the spring pad, the dustproof hood and an end cover are improved, and the purposes that dust and oil gas access paths during moving of pillars are changed, dust absorbing is reduced, and oil stains condensed on the outer surface of the damper are avoided are achieved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a dust-proof mechanism for a vehicle suspension. Background technique [0002] When the vehicle strut assembly is working, it moves up and down along the piston rod. In order to protect the piston rod and the sealing parts of the shock absorber from being damaged, the dust-proof structure such as spring seat, spring pad and dust cover will be used to protect the piston rod from dust. And anti-stone impact, improve the service life of the shock absorber, and at the same time discharge the dust inhaled during the movement and the oil gas generated by the evaporation of the oil film on the surface of the piston rod from the lower end of the dust cover. When the conventional dust-proof structure is used, the movement route of dust and oil gas is as follows: Figure 1 shown. When the vehicle is moving, because the lower end of the dust cover is closer to the ground, too much dust ...

Claims

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Application Information

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IPC IPC(8): F16F13/00F16F9/36F16F9/32
Inventor 刘新强
Owner SICHUAN NINGJIANG SHANCHUAN MACHINERY
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