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Shearing type MR fluid shock absorber

A technology of magnetorheological fluid and shock absorber, which is applied in vibration suppression adjustment, non-rotational vibration suppression, etc., and can solve problems such as automatic reset cannot be realized

Inactive Publication Date: 2008-08-06
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the existing magneto-rheological fluid shock absorber is that it cannot realize the automatic reset function

Method used

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  • Shearing type MR fluid shock absorber
  • Shearing type MR fluid shock absorber
  • Shearing type MR fluid shock absorber

Examples

Experimental program
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Embodiment Construction

[0017] 1 to 7, the embodiment discloses a shear magneto-rheological fluid shock absorber, which includes an upper seat plate 1, a lower seat plate 2, a piston rod 3, a damping cylinder 4, a rubber sleeve 5, an excitation coil 6, Magneto-rheological fluid 7, etc., among which:

[0018] With reference to Fig. 6, Fig. 7, the outer wall of described piston rod 3 is provided with circular protruding ring 31 and protruding ring 32 at intervals, and piston rod 3 is provided with the outer side of piston rod 3 for communicating between protruding ring 31 and protruding ring 32. The connection hole 33 at one axial end of the wall and the piston rod 3, the excitation coil 6 is wound on the outer wall of the piston rod 3 between the convex ring 31 and the convex ring 32 of the piston rod 3, and the two ends of the excitation coil 6 pass through the wire The connecting hole 33 is connected to a DC power supply, and the piston rod 3 is provided with two passages 34 and 35 for perfusing the...

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PUM

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Abstract

The invention provides a shear mode magneto-rheological fluid damper which is capable of achieving automatic reset, and comprises a seat board 1, a seat board 2 and a magneto-rheological fluid damper, wherein the magneto-rheological fluid damper is arranged between the seat board 1and the seat board 2, a rubber damping device is arranged between the board plate 1 and the seat board 2, thereby when the seat board 1 and the seat board 2 are arranged on a damping object, the magneto-rheological fluid damper provides a damping effect of real-time adjustable damping coefficient and accurate control for the damping object, the rubber damping device besides provides an additional non-main damping action, the more important is that the magneto-rheological fluid damper is recovered to an initial state, and the whole shear mode magneto-rheological fluid damper is maintained in an ideal working state.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a shear type magnetorheological fluid shock absorber. Background technique [0002] At present, the vibration damping devices in the field of construction machinery mainly include rubber shock absorbers and magnetorheological fluid shock absorbers. Because of its non-adjustable damping coefficient and poor temperature resistance and corrosion resistance, the rubber shock absorber cannot be adapted to various complex working conditions. Magnetorheological fluid is a new type of intelligent material. The different rheological properties of magnetorheological fluid in different magnetic fields make it widely used in the manufacture of vibration dampers, brakes, clutches, polishing devices and hydraulic valves. The damper made of rheological fluid has the advantages of simple structure, fast response, low power consumption, large damping force and continuous adjustment. It is a typical controllab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53
Inventor 黄宜坚喻志军刘少谦陈丙三童昕
Owner HUAQIAO UNIVERSITY
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