Double-outlet rod magnet rheologic elastic body damper

Abstract

The invention discloses a double-outlet rod magnet rheologic elastic body damper, which comprises two damping rods, a damping block, two damping rollers and a working cylinder, wherein the cross section of an inner cavity of a working cylinder is rectangular; baffles are fixed at both the two ends of the working cylinder; a hole is formed in the middle of each baffle; sliding bearings are fixed in the holes; a layer of magnet rheologic elastic body is fixed on the surface of each of two short sides in the working cylinder; the section of the damping block is I-shaped; a magnet exciting coil is wound in the middle of the damping block; a semi-circular groove is arranged in each middle of the two ends of the damping block; central axles of the grooves are perpendicular to central axes of the damping rods; diameters of the grooves are greater than diameters of the damping rollers; the damping rollers are arranged in the semi-circular grooves at the both ends of the damping block; one end of each two damping rods is fixed at the two ends of the damping block, respectively; and the other end of each two damping rods stretches out from inner side of the working cylinder through the sliding bearings on the baffles at the both ends of the working cylinder, respectively.

Description

technical field [0001] The invention belongs to a damper, in particular to a magnetorheological elastic body damper with double outlet rods. Background technique [0002] The existing double-rod magnetorheological damper mainly adopts the structure of working cylinder, piston and piston rod, and the working cylinder is also filled with magnetorheological fluid. This kind of magnetorheological damper is driven by the piston rod to move the piston The reciprocating motion in the working cylinder is used to generate damping force. In order to prevent the magnetorheological fluid in the working cylinder from being taken out of the working cylinder with the piston rod, a sealing device is usually used between the working cylinder and the piston rod to solve the dynamic problem of the piston rod. Sealing problem, since the magnetorheological fluid is a mixture of fine powders containing various components in mineral oil, it is very difficult to dynamically seal it. Once the leakag...

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Problems solved by technology

[0002] The existing double-rod magnetorheological damper mainly adopts the structure of working cylinder, piston and piston rod, and the working cylinder is also filled with magnetorheological fluid. This kind of magnetorheological damper is driven by the piston rod to move the piston The reciprocating motion in the working cylinder is used to generate damping force. In order to prevent the magnetorheological fluid in the working cylinder from being taken out of the working cylinder with the piston rod, a sealing device is usually used between the working cylinder and the piston rod to solve the dynamic problem of the piston rod. Sealing problem, since the magnetorheological fluid is a mixture of fine powders containing various components in mineral oil, it is very difficult to dynamically seal it. Once the leakage of the magnetorheological fluid occurs, it will cause the magnetorheological damping The performance of the magneto-rheological damper is degraded, and the magneto-rheological damper is completely invalid. Therefore, the dynamic sealing problem of the piston rod has become the main obstacle in the industry to improve the service life of the magnetorheological damper.

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