CN200949627Y

CN200949627Y - Piston assembly mounted on single-cylinder shock absorber

Info

Publication number: CN200949627Y
Application number: CN 200620105425
Authority: CN
Inventors: 陈敬辉
Original assignee: ZHEJIANG ZHENGYU INDUSTRY Co Ltd
Current assignee: Zhejiang Zhengyu Industry Co.,Ltd.
Priority date: 2006-07-06
Filing date: 2006-07-06
Publication date: 2007-09-19
Anticipated expiration: 2016-07-06

Abstract

This utility model relates to a piston assembly, especially relates to a piston assembly on single cylinder shock absorber. The piston assembly arranged on single cylinder shock absorber, the piston with the end surface arranged with a plurality of throttle holes are arranged on the piston rod which is located in the cylinder body, and a plurality of valve plates are separately arranged on both end of the piston, the outside of the valve plate is arranged with location adjustment device. The utility model has characteristics such as reasonable and simple structure, novel design, easy adjustment, high responding frequency, good property, and strong reliability. Especially that a piston assembly arranged in single shock absorber with adjustable damping force, high responding frequency, good property and strong reliability is provided for automobiles.

Description

Place the piston assembly on the single cylinder shock absorber

Technical field

The utility model relates to a kind of piston assembly, especially relates to the piston assembly on a kind of single cylinder shock absorber.

Background technique

At present, the two-way telescopic shock absorber that generally uses on various automobiles, motorcycle, locomotive, the vehicle, all adopting double-deck oil cylinder is clutch release slave cylinder and oil storage cylinder, the bidirectional damper of this vibration damper is inequality, damping effect is fine, but complex structure, component are more, difficulty of processing is big, materials are many, cost is high, especially because medium oil can contact with gas, be easy to generate oil gas mixture, influence service behaviour.In order to address this problem, someone has designed the single-cylinder bidirectional vibration damper (patent No.: 98250904.9), this design is a kind of vibration damper of simple in structure, the identical good damping effect of bidirectional damper, and its upper piston and piston rod are connected as a single entity, but also have the improved place of many needs.

Summary of the invention

The utility model mainly is to solve existing in prior technology can't regulate the not high technical problem of damping force, reliability, and the piston assembly that places single cylinder shock absorber of a kind of damping force adjustable, good reliability is provided.

The utility model solves also simultaneously that the existing in prior technology response frequency is not high, the technical problem of characteristic difference etc., and a kind of response frequency height, the piston assembly that places single cylinder shock absorber that characteristic is good are provided.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of piston assembly that places on the single cylinder shock absorber, the piston that end face has several throttle orifices is arranged on the piston rod, place in the cylinder body, and being that described piston two ends respectively are provided with several valve blocks, the valve block outside is provided with the adjustment positioning device.

As preferably, described being arranged near the valve block of piston rod end to restoring valve block, it is adjusted positioning device and adjusts pad, rebuilt valve lock washer, rebuilt valve and rebuilt valve nut by rebuilt valve successively from the inside to surface and form.

As preferably, the described valve block that is arranged near the piston rod axostylus axostyle is the compression valve block, and it is adjusted, and positioning device is adjusted pad by compression valve from the inside to surface successively and limiting board is formed, leans on mutually with the shaft shoulder of piston rod outside the limiting board.

As preferably, the side of described piston is provided with annular groove, is provided with seal ring in the annular groove.

As preferably, described compression valve block and restore valve block each is made up of four valve blocks, its diameter reduces successively laterally.

As preferably, it is characterized in that described throttle orifice annular is uniformly distributed on the piston, an end of throttle orifice is provided with the horn mouth groove, is arranged at the horn mouth on the same throttle orifice radially on the different end faces of piston.

As preferably, described piston end face is provided with several restriction imports, and the end face of piston rod is provided with the hole (A) of blunderbuss riveting.

Therefore, the utlity model has rational in infrastructure simple, modern design, easy to adjust, the response frequency height, characteristic is good, and characteristics such as good reliability are especially for providing a kind of damping force adjustable on the automobile, the response frequency height, characteristic is good, the piston assembly that places single cylinder shock absorber of good reliability.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present utility model;

Accompanying drawing 2 is structural representations when being assemblied in the single cylinder shock absorber of the present utility model.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1: the assembly process of single cylinder shock absorber piston assembly: piston rod 1 is fixed on the anchor clamps, limiting board 3 piston rod end of packing into is put into and adjusted pad 2 and compression valve block 4 (4 compression valve block is ascending successively put into); Put into the piston 12 of having adorned piston ring 6 again; Put into successively again and restore valve block 7 (4 recovery valve blocks are descending successively), adjustment pad 8, rebuilt valve 9 and rebuilt valve lock washer 10, use rebuilt valve nut check at last, then at A place riveting.

Four valve blocks by the regulating piston two ends, can regulate recovery damping force and compression damping power, because the effect of air pressure, single cylinder shock absorber can reach very high response frequency, and simple in structure, characteristic is good, and reliability is also strong, this single cylinder shock absorber is widely used on the high-grade car, as benz, BMW.

Claims

1. one kind places the piston assembly on the single cylinder shock absorber, the piston (12) that end face has several throttle orifices (5) is arranged on the piston rod (1), place in the cylinder body (13), it is characterized in that described piston (12) two ends respectively are provided with several valve blocks, the valve block outside is provided with the adjustment positioning device.

2. the piston assembly that places on the single cylinder shock absorber according to claim 1, it is characterized in that the described valve block that is arranged near piston rod (1) end is recovery valve block (7), it is adjusted positioning device and is made up of rebuilt valve adjustment pad (8), rebuilt valve (9), rebuilt valve lock washer and rebuilt valve nut (11) successively from the inside to surface.

3. the piston assembly that places on the single cylinder shock absorber according to claim 1 and 2, it is characterized in that the described valve block that is arranged near piston rod (1) axostylus axostyle is compression valve block (4), it is adjusted, and positioning device is adjusted pad (2) by compression valve from the inside to surface successively and limiting board (3) is formed, and limiting board (3) outside is leaned on mutually with the shaft shoulder of piston rod (1).

4. the piston assembly that places on the single cylinder shock absorber according to claim 1 and 2 is characterized in that the side of described piston (12) is provided with annular groove, is provided with piston ring (6) in the annular groove.

5. the piston assembly that places on the single cylinder shock absorber according to claim 3 is characterized in that the side of described piston (12) is provided with annular groove, is provided with piston ring (6) in the annular groove.

6. the piston assembly that places on the single cylinder shock absorber according to claim 1 and 2 is characterized in that described compression valve block (4) and restores valve block (7) that each is made up of four valve blocks, and its diameter reduces successively laterally.

7. the piston assembly that places on the single cylinder shock absorber according to claim 3 is characterized in that described compression valve block (4) and restores valve block (7) that each is made up of four valve blocks, and its diameter reduces successively laterally.

8. the piston assembly that places on the single cylinder shock absorber according to claim 1 and 2, it is characterized in that described throttle orifice (5) annular is uniformly distributed on the piston (1), one end of throttle orifice (5) is provided with the horn mouth groove, and the horn mouth on same throttle orifice (5) radially is arranged on the different end faces of piston (12).

9. the piston assembly that places on the single cylinder shock absorber according to claim 3, it is characterized in that described throttle orifice (5) annular is uniformly distributed on the piston (12), one end of throttle orifice (5) is provided with the horn mouth groove, and the horn mouth on same throttle orifice (5) radially is arranged on the different end faces of piston (12).

10. the piston assembly that places on the single cylinder shock absorber according to claim 1 and 2 is characterized in that the end face of described piston (12) is provided with several throttle orifice imports, and the end face of piston rod (1) is provided with the hole (A) of blunderbuss riveting.