Damper regulation mechanism of adjustable shock-absorber

A damping adjustment and shock absorber technology, applied in shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of intensified foaming and aging, poor consistency of damping performance, and increased damping attenuation of shock absorbers. , to achieve the effect of saving production cost, stable working performance and light foaming degree

Active Publication Date: 2011-09-28
台州九桔科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adjustment system of this scheme is more complicated, and the processing and sealing of the connecting rod are more difficult. Only the damping adjustment in the tensile direction can be realized, and the compression damping adjustment cannot be realized.
On the other hand, due to the large number of small pores in the structure, it is difficult to guarantee the consistency of processing, which leads to poor consistency of the product's damping performance; at the same time, the oil flows through more small pores, which will aggravate its foaming and aging, and make the damping performance of the shock absorber worse. Increased damping attenuation and reduced service life
[0004] Someone else invented a new type of hydraulic shock absorber (patent number: CN01247520.3), which is an easy-to-control adjustable shock absorber that is adjusted by a rotary valve at the bottom, and the piston moves upward when stretched. , relying on the negative pressure formed by the lower end of the piston in the cylinder to suck the oil through the bottom valve to generate damping, because the damping is only a part of the recovery damping, so the adjustment range of the recovery damping is relatively small; in addition, the oil is easy to suck air to generate foam, Lost motion occurs when the piston rod is compressed
Moreover, this solution cannot be directly applied to existing shock absorbers, and requires substantial modification on the basis of the original structure. Therefore, the compatibility is poor and the processing and production costs are high

Method used

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  • Damper regulation mechanism of adjustable shock-absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the damping adjustment mechanism of the adjustable shock absorber is set at the connection between the cylinder 2 and the oil storage chamber 3 between the outer cylinder 1 and the cylinder 2, including the sealing valve plate 4, the valve core 5, the spring 6, etc. . In this embodiment, the oil storage chamber 3 is an annular space between the outer cylinder 1 and the cylinder 2 .

[0024] Such as figure 2 As shown, the sealing valve plate 4 is fixed at the communication place between the cylinder barrel 2 and the oil storage chamber 3 . More specifically, the sealing valve plate 4 is fixed on the bottom of the cylinder barrel 2, and there is a normally open gap between the sealing valve plate 4 and the valve core 5 for hydraulic oil to pass through. The sealing valve plate 4 here does not completely seal the connection between the cylinder barrel 2 and the oil storage chamber 3, and the hydraulic oil can pass through the oil passage, the...

Embodiment 2

[0029] In this example, if Figure 5As shown, the valve seat 8 is pierced with an air guide tube 12 for applying air pressure to the baffle plate 5a on the valve core 5, the air guide tube 12 is connected with the air supply pump 9, and an air pressure regulator 14 is also provided on the air guide tube 12 . The driver can also control or preset the air pressure regulator 14 through the controller 10, thereby controlling the operation of the air supply pump 9, so that the air pressure received by the baffle plate 5a changes, and then changes the air pressure between the valve core 5 and the sealing valve plate 4. Positional relationship. The rest are similar to those in Example 1, and will not be described in detail herein.

Embodiment 3

[0031] In this example, if Figure 6 As shown, the spool 5 leans against an adjusting knob 7 for adjusting the relative position between the spool 5 and the sealing valve plate 4, and the adjusting knob 7 is threadedly connected to the bottom of the outer cylinder 1. When the adjusting knob 7 is turned, the positional relationship between the valve core 6 and the sealing valve plate 4 can be changed. Therefore, the damping value can be adjusted conveniently by turning the adjusting knob 7 .

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PUM

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Abstract

The present invention provides an adjustable shock absorber damping adjustment, which belongs to Shock Absorber field. It solves the defect existing technology with the damp adjustable range small, short life, poor compatibility,and high cost. The damp adjusting mechanism is installed between cylinder and oil storage tank, which concludes seal valve fixed in connected place with cylinder and oil storage tank. On the seal valve equipped with a hole in which is inserted by the front end of spool which has different radius, between spool and seal valve equipped with spring, the end of spring acting in seal valve and the other end in spool. The damp adjusting mechanism of adjustable shock absorber not only has the advantages of reasonable design, simple stucture and low cost.

Description

technical field [0001] The invention relates to the field of shock absorbers, in particular to a damping adjustment mechanism of an adjustable shock absorber. Background technique [0002] As people's requirements for the comfort and stability of vehicles are getting higher and higher, people have designed various vehicle damping devices. Since different road conditions and vehicle loads have different requirements on the damping capacity of the shock absorber (that is, damping and damping), if the damping capacity of the shock absorber is not adjusted in a timely manner according to road conditions and loads, other The damping effect is clearly unsatisfactory. For this reason, it is necessary to design a shock absorber that can produce different damping capabilities when the vehicle is running on different road conditions and different load states, so as to meet people's needs. [0003] In order to solve the problem of adjustable damping at any time, people have carried o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/34
Inventor 李孙琴杨怀友罗金良
Owner 台州九桔科技股份有限公司
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