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Magnetorheological fluid two-way damping regulating valve

A magneto-rheological fluid and two-way damping technology, which is applied in the field of regulating valves, can solve the problems of excessive magnetorheological fluid and increase the manufacturing cost of shock absorbers, etc., achieve fast dynamic response, reduce cost input, and ease the dependence on usage Effect

Active Publication Date: 2020-07-03
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Chinese patent application CN105909722A invented a magneto-rheological fluid adjustable damping shock absorber. This shock absorber can adjust the damping force to a certain extent and improve the heat dissipation and installation and maintenance problems during work. The cylinder is filled with magnetorheological fluid, which requires more magnetorheological fluid, which increases the manufacturing cost of the shock absorber

Method used

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  • Magnetorheological fluid two-way damping regulating valve
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  • Magnetorheological fluid two-way damping regulating valve

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0025] Such as Figure 1 to Figure 4 As shown, a magneto-rheological fluid two-way damping regulating valve includes a piston rod 1, the piston rod 1 is threadedly connected with a piston, and the piston rod 1 drives the entire piston to move up and down, and the piston rods are screwed together in turn and respectively arranged There is an upper end cover 2, a lower end cover 4, an extrusion valve body 8 and an extrusion valve base 10 with a middle cavity. Th...

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Abstract

The invention discloses a magnetorheological fluid two-way damping regulating valve. The magnetorheological fluid two-way damping regulating valve comprises a piston rod, an upper end cover, a lower end cover, a squeezing valve assembly, a damping regulating mechanism, a piston valve system, and a working cylinder. The squeezing valve assembly comprises a valve core, a squeezing valve body, a squeezing valve base, excitation coils, magnetorheological fluid, and magnetic isolation rings. The damping regulating mechanism comprises the valve core, sliding blocks, sealing rings, sliding block return springs, sliding block supporting rods, and damping openings; the upper end cover matches with the lower end cover in a threaded mode and the damping opening C is thereby formed. The size of the damping opening C can be manually adjusted via threads on the upper end cover and the first adjustment of damping force is thereby realized. In the moving process of the valve core, the viscosity of themagnetorheological fluid is controlled by a magnetic field to adjust the resistance force on the valve core, so the displacement of the valve core is controlled; the flow area of two damping openingsis then adjusted via the sliding blocks to realize damping stepless adjustment; and the second adjustment of damping force is thereby realized. The magnetorheological fluid two-way damping regulatingvalve can be applied to single-cylinder and dual-cylinder vibration absorbers and can realize active control and damping stepless adjustment of the vibration absorbers.

Description

technical field [0001] The invention relates to the field of regulating valves, in particular to a magneto-rheological fluid bidirectional damping regulating valve. Background technique [0002] The shock absorber is an important damping element of the automobile suspension system. It is mainly used to absorb the shock and vibration generated during the driving of the vehicle. comfortability. The traditional non-adjustable damping shock absorber can no longer meet people's needs. In order to meet the needs of different road conditions, the research and development of adjustable damping shock absorber has been deepening in recent years. [0003] Chinese patent application CN108412940B discloses a magnetorheological fluid valve control damping stepless adjustable shock absorber, which is composed of a magnetorheological fluid valve control unit and a hydraulic unit. In the magnetorheological fluid valve control unit, the piston rod is set as a hollow rod body, and the plunge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/34F16F9/53
CPCF16F9/3405F16F9/53F16F2222/12F16F2224/045F16F2228/066F16F2228/08
Inventor 谢方伟田祖织刘秀梅沈刚梁斌徐纯洁
Owner CHINA UNIV OF MINING & TECH
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