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Two-cavity long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid

A magneto-rheological fluid and long-stroke technology, which is applied in the direction of liquid shock absorbers, shock absorbers, shock absorbers, etc., can solve the problems of increasing the stroke and increasing the cost, so as to reduce the consumption, reduce the cost, and resist bridge nodes The effect of displacement

Pending Publication Date: 2022-08-02
WUHAN UNIV OF TECH
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Problems solved by technology

[0004] In view of this, it is necessary to provide a magneto-rheological fluid-saving two-chamber long-stroke magneto-rheological fluid damper to solve the problem of increasing the stroke of the magnetorheological fluid damper in the prior art in response to temperature loads. Technical issues that lead to significant cost increases

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  • Two-cavity long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid
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  • Two-cavity long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid

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Embodiment Construction

[0038] The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

[0039] See figure 1 and figure 2 , the two-chamber long-stroke magnetorheological fluid damper 100 for saving magnetorheological fluid includes an outer cylinder 1, an inner cylinder 2 and a piston assembly 3; the outer cylinder 1 has a first cavity 1a; the inner cylinder 2 It is movably arranged in the first chamber 1a along the axial direction of the outer cylinder 1 to divide the first chamber 1a into a first chamber 1a1 and a second chamber 1a2 along the axial direction of the outer cylinder 1. The first chamber A communication channel 6a is provided between the chamber 1a1 and...

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Abstract

The invention relates to a two-cavity long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid. The two-cavity long-stroke magnetorheological fluid damper comprises an outer cylinder body, an inner cylinder body and a piston assembly. The outer cylinder body is provided with a first containing cavity. The inner cylinder body is movably arranged in the first containing cavity in the axial direction of the outer cylinder body, a communicating channel is arranged between the first cavity and the second cavity, a first communicating valve is arranged on the communicating channel, and the inner cylinder body is provided with a second containing cavity; the piston assembly comprises a piston and a movable shaft, the piston is provided with an electromagnetic coil and movably arranged in the second containing cavity in the axial direction of the outer cylinder body, a damping channel is arranged between the third cavity and the fourth cavity, a second communicating valve is arranged on the damping channel, and the movable shaft extends in the axial direction of the outer cylinder body; wherein hydraulic oil is contained in the first cavity and the second cavity, and magnetorheological fluid is contained in the third cavity and the fourth cavity. According to the scheme, low-cost hydraulic oil can be adopted while the scheme is suitable for temperature loads and external loads, the use amount of magnetorheological fluid is reduced, and therefore the cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of magnetorheological fluid dampers, in particular to a two-chamber long-stroke magnetorheological fluid damper that saves magnetorheological fluid. Background technique [0002] Magnetorheological fluid damper is a controllable intelligent liquid damper with superior performance. It has the advantages of adjustable parameters and damping force, large output and simple structure. The mechanical properties of magnetorheological fluid can be quickly changed by adjusting the magnetic field strength. , which is very suitable for vibration control of large civil engineering structures such as long-span bridges. [0003] For example, the patent CN 102654167 B discloses a magnetorheological damper capable of preventing the precipitation of the magnetorheological fluid, which realizes shock absorption through the cooperation of the magnetorheological fluid with the piston. However, it cannot be ignored that in the ...

Claims

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Application Information

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IPC IPC(8): F16F9/53F16F9/18F16F9/32F16F9/34F16F9/43
CPCF16F9/537F16F9/18F16F9/3207F16F9/3214F16F9/34F16F9/43
Inventor 刘嘉叶艳秋王佳庆涂建维
Owner WUHAN UNIV OF TECH
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