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Multistep assemblied anti-settle magnetic rheological damper

A magneto-rheological damper and assembled technology, which is applied in the field of damping devices, can solve the problems that it is difficult to effectively prevent the magnetorheological fluid from settling, and the requirements for DC current sources are high, so as to prevent static settling, increase output value, and process design simple effects

Inactive Publication Date: 2006-11-29
TIANJIN UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, most of the magneto-rheological dampers in the domestic and foreign markets are designed with the piston and the piston rod integrated, and the controllable damping force is realized only by adjusting the magnetic field with the current, so the requirement for a stable DC current source is relatively high. In addition, the traditional single current The control mode is also difficult to effectively prevent the sedimentation of magnetorheological fluid

Method used

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  • Multistep assemblied anti-settle magnetic rheological damper
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  • Multistep assemblied anti-settle magnetic rheological damper

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] like Figure 1-3 The multi-stage assembled anti-settling magneto-rheological damper includes a cylinder 3, an end cover 4, a piston, a piston rod 2, and a throttling flow is arranged between the inner wall of the cylinder 3 and the outer wall of the piston. Road 7, the piston includes multiple groups of magnetically conductive piston disks that are sleeved on the piston rod 2 and each group is composed of two magnetically conductive piston disks 5, and the two magnetically conductive piston disks of each group of magnetically conductive piston disks There is a permanent magnet piston disc 6 set on the piston rod between them, and its magnetic strength is preferably 5000-8000 gauss. In order to increase its shear strength, its surface should have a high-strength coating, which can be zinc, nickel, etc. plating. A magnetic conduction s...

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Abstract

The invention discloses a multi-step installation anti-settling magnetic current vibration altering absorber that includes cylinder, end cover, piston, and piston bar. Choking channel is set between the inner wall of the cylinder and the outside wall of the piston. Permanent magnetism piston plate covering on the piston bar is set between the two magnetic guiding piston discs. And exciting coil is set outside the magnetic guiding sleeve. The invention could be conveniently to install and could be repeatedly used. While power supply shutting down or energy is not abundant, the permanent magnetism piston plate would take place of magnetic loop to continue working and save energy. In non-working state, the permanent magnetism would avoid magnetic current liquid standing and depositing.

Description

technical field [0001] The present invention relates to a damping device, in particular to a multi-stage assembled anti-settling magneto-rheological damper. The proposed damper is an energy-dissipating and shock-absorbing device with good performance, and can be generally applied to automobiles, machinery, aviation , bridges and civil engineering structures. Background technique [0002] The magnetorheological damper is an energy consumption and vibration reduction device that uses magnetorheological fluid as the working medium. Magnetorheological fluid is a suspension liquid formed by dispersing fine soft magnetic particles in a carrier liquid with low magnetic permeability, which can change with the external magnetic field and have controllable rheological properties; under the action of a magnetic field, magnetorheological fluid can In an instant (10ms), the reversible change from liquid state to Bingham semi-solid state can be realized, and after the magnetic field is r...

Claims

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Application Information

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IPC IPC(8): F16F9/53
Inventor 李忠献刘建军
Owner TIANJIN UNIV
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