Magnetorheological elastomer damper with single rod extending out

Abstract

The invention discloses a magnetorheological elastomer damper with a single rod extending out, which comprises a damping rod, a damping block, four damping wheels and a working cylinder. The cross section of an inner cavity of the working cylinder is rectangular, retaining plates are fixed at two ends of the working cylinder, a sliding bearing is fixed in a hole arranged in the middle of one of the retaining plates, and magnetorheological elastomer layers are respectively fixed on surfaces of two short inner edges of the working cylinder. The longitudinal section of the damping block is H-shaped, an excitation coil is wound in the middle of the H-shaped damping block, end faces of four branches of the H-shaped damping block are respectively provided with a semicircular groove, the axis of the grooves are perpendicular to the axis of the damping rod, and the diameter of the grooves is larger than that of the wheels. The damping wheels are mounted in the semicircular grooves on the end faces of the four branches of the H-shaped damping block. One end of the damping rod is fixed with the H-shaped damping block, and the other end of the damping block extends out of the working cylinder through the sliding bearing on the retaining plate at one end of the working cylinder.

Description

technical field [0001] The invention belongs to a damper, in particular to a single-rod magneto-rheological elastomer damper. Background technique [0002] The existing single-rod magnetorheological damper mainly adopts the structure of working cylinder, piston and piston rod, and the working cylinder is also filled with magnetorheological fluid. For example, the Chinese patent application number is: 201020256901. Out-rod magnetorheological damper", this type of magnetorheological damper generates damping force through the reciprocating motion of the piston in the working cylinder driven by the piston rod, in order to prevent the magnetorheological fluid in the working cylinder from being carried out with the piston rod Outside the working cylinder, a sealing device is usually used between the working cylinder and the piston rod to solve the dynamic sealing problem of the piston rod. Since the magnetorheological fluid is a mixture of fine powders containing various componen...

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Problems solved by technology

[0002] The existing single-rod magnetorheological damper mainly adopts the structure of working cylinder, piston and piston rod, and the working cylinder is also filled with magnetorheological fluid. For example, the Chinese patent application number is: 201020256901. Out-rod magnetorheological damper", this type of magnetorheological damper generates damping force through the reciprocating motion of the piston in the working cylinder driven by the piston rod, in order to prevent the magnetorheological fluid in the working cylinder from being carried out with the piston rod Outside the working cylinder, a sealing device is usually used between the working cylinder and the piston rod to solve the dynamic sealing problem of the piston rod. Since the magnetorheological fluid is a mixture of fine powders containing various components in mineral oil, it is suitable for It is very difficult to perform dynamic sealing. Once the leakage of the magnetorheological fluid occurs, the performance of the magnetorheological damper will be reduced, and the magnetorheological damper will be completely invalid. Therefore, the dynamic sealing problem of the piston rod has become a problem in the industry. The main obstacles to improving the service life of magnetorheological dampers

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