Magneto-rheological damper with unidirectional damping property

A magneto-rheological damper, one-way damping technology, applied in shock absorbers, shock absorbers, springs/shock absorbers, etc.

Active Publication Date: 2016-07-06
SHIJIAZHUANG TIEDAO UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the magnetorheological damper, its one-way damping characteristic can be realized by cutting off the current when the piston moves in a certain direction, but in order to meet a certain damping force requirement, the gap of the annular channel of the common magnetorheological damper is relatively small, so Even if there is no current and the magnetic field strength is zero, a certain damping force will still be generated when the piston moves

Method used

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  • Magneto-rheological damper with unidirectional damping property
  • Magneto-rheological damper with unidirectional damping property
  • Magneto-rheological damper with unidirectional damping property

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0030] like figure 1 A...

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Abstract

The invention discloses a magneto-rheological damper with unidirectional damping property, and relates to the technical field of devices for adjusting damping property by changing fluid viscosity. The magneto-rheological damper comprises a damping cylinder, a unidirectional damping piston assembly, a coil assembly, a piston rod and magneto-rheological liquid, wherein the unidirectional damping piston assembly comprises a damping piston, a spring sheet and a gasket; a first annular through hole and a second annular through hole are formed in the damping piston; a magneto-rheological fluid passage is arranged on the coil assembly and is communicated with the first annular through hole, and the coil assembly does not cover the second annular through hole. The magneto-rheological damper has the advantages that when the damping piston moves up, the spring sheet seals the second annular through hole, the magneto-rheological fluid only passes through the magneto-rheological liquid passage under the action of a magnetic field, and the damping force can be adjusted by adjusting the intensity of the magnetic field; when the damping piston moves down, the second annular through hole is opened under the action of no magnetic field, and the produced damping force is little, so that the unidirectional damping property of the magneto-rheological damper is realized.

Description

technical field [0001] The invention relates to the technical field of devices for adjusting damping properties by changing fluid viscosity, in particular to a magneto-rheological damper with unidirectional damping characteristics. Background technique [0002] The magnetorheological damper is a new type of semi-active damping device based on the controllable characteristics of the magnetorheological fluid. It has the advantages of fast response, simple structure, small size, and easy control. It is an ideal vibration isolation and vibration reduction device. , has broad application prospects in the field of vibration control. The common magnetorheological damper winds the electromagnetic coil on the piston of the damper, and at the same time, an annular channel is set on the piston or between the piston and the damping cylinder, and the magnetorheological fluid flows from the annular channel during operation. By generating a damping force, adjusting the current in the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53F16F9/34F16F9/32
CPCF16F9/3214F16F9/3405F16F9/341F16F9/535
Inventor 邢海军张晗王笑组杜阿雷马会林王春杰杨绍普申永军李韶华
Owner SHIJIAZHUANG TIEDAO UNIV
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