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All-shearing type magneto-rheological damper

A magneto-rheological damper and pure shear technology, applied in vibration suppression adjustment, non-rotational vibration suppression, etc., can solve the problems of low utilization rate of magnetorheological fluid, limited range of controllable damping force and controllable damping ratio, etc. , to achieve the effects of increased controllable damping ratio range, easy protection, and reliable structure

Active Publication Date: 2014-12-03
ANQING HUITONG AUTOMOTIVE PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to avoid the disadvantages of the above-mentioned prior art, the present invention provides a pure shear magneto-rheological damper, aiming at the low utilization rate of the magnetorheological fluid in the magnetorheological damper in the prior art and the controllable damping Due to the limited range of force and controllable damping ratio, a magnetorheological fluid with high utilization rate and excellent controllable damping force performance can be realized without changing the external size and excitation energy consumption of the existing magnetorheological damper. Pure shear magnetorheological damper

Method used

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Embodiment Construction

[0031] See Figure 1 and figure 2 , the pure shear magnetorheological damper in this embodiment includes an outer cylinder body 1, an inner cylinder body 2 and a ball screw nut 9 with a shear disc 4 fixed, the outer cylinder body 1 and the inner cylinder body 2 are the same Axis settings;

[0032] Figure 1 and figure 2 and image 3 As shown, a ball screw pair is provided, as the screw shaft 10 of the piston rod, one end of which is fixed at the center of the upper end cover of the outer cylinder body 1, and the screw shaft 10 can be compressed into or restored to exit the inner cylinder body 2. The inner side wall of the cylinder body 2 is fixedly provided with an electromagnetic coil 5 and a shearing ring 3 corresponding to the shear disc 4; in the inner cylinder body 2, the inner side wall of the inner cylinder body 2 and the ball screw nut 10 together constitute a closed cavity, which is filled with magnetorheological fluid 8, and the ball screw nut 9 threaded with the ...

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Abstract

The invention discloses an all-shearing type magneto-rheological damper. The all-shearing type magneto-rheological damper is characterized by comprising an outer cylinder, an inner cylinder and a ball screw pair, wherein the inner cylinder is coaxially arranged with the outer cylinder, shearing discs are fixed by the ball screw pair, the inner wall of the inner cylinder is provided with electromagnetic coils and sharing ring sets corresponding to the shearing discs one by one, magneto-rheological liquid is filled in a cavity of the inner cylinder, at least one electromagnetic coil is arranged between adjacent shearing rings fixed on the inner wall of the inner cylinder, and the shearing discs, the shearing rings and the inner cylinder form a closed flux loop. On the premise of keeping same external size and energy consumption of a magneto-rheological damper, null-field viscous damping of the magneto-rheological damper is reduced, controllable damping ratio range is enlarged, and the all-shearing type magneto-rheological damper is added with potential for application to a high-speed impact / vibration control system. Besides, service efficiency of the magneto-rheological liquid in the magneto-rheological damper is improved, and cost of the magneto-rheological damper is effectively reduced.

Description

technical field [0001] The invention relates to a magneto-rheological semi-active controllable actuator, in particular to a magneto-rheological semi-active controllable actuator suitable for bicycles, motorcycles, automobiles, trucks, ships, trains, airplanes, bridges, buildings, sports facilities and other vibration / shock control systems Pure shear magnetorheological damper. Background technique [0002] In the past two decades, due to its excellent performance of semi-active actuators, including fast response, stepless controllability of damping force, simple structure, good durability and low power consumption, magnetorheological dampers have been The vibrator can be completely replaced under the external dimensions and installation conditions, and has been studied and used to form a variety of semi-active vibration / shock control systems, including anti-seismic buffer systems for building structures, suspension systems for cars and trains, automobiles, fast boats, and air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53
Inventor 白先旭钱立军
Owner ANQING HUITONG AUTOMOTIVE PARTS
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