Magneto-rheological torsion damper

Abstract

The invention provides a magnetorheological torsion damper. A rear end cover and a front end cover are detachably connected with a shell; a winding rod is arranged on the shell; an electromagnetic coil is wound on the winding rod; distance sensors are installed on the rear end cover and the front end cover; preformed holes are formed in the middles of the rear end cover and the front end cover; acontroller and a power interface are fixed to the front end cover; an inner sleeve is installed between the rear end cover and the front end cover; bearings are installed between the inner sleeve andthe rear end cover and between the inner sleeve and the front end cover; a through hole is formed in the middle of the inner sleeve; a sealing cavity is defined by the inner sleeve, the rear end cover, the front end cover and the outer shell together; and magnetorheological fluid is filled in the sealing cavity. The magnetorheological fluid material is adopted, the friction damping of the torsiondamper is adjustable under different magnetic field intensities, the influence of the working temperature on the viscosity of the magnetorheological fluid is small, and the torsion damper works stably. The distance sensors are adopted to monitor the amplitude of a transmission shaft in real time, whether an electromagnetic coil is electrified or not is controlled through a controller, the currentis regulated and controlled through the controller, friction damping is controlled more accurately, and vibration of the transmission shaft is reduced.

Description

technical field [0001] The invention relates to the technical field of torsional shock absorbers, in particular to a magnetorheological torsional shock absorber. Background technique [0002] Magnetorheological Fluid, referred to as MR fluid, is a controllable fluid and is a relatively active research in smart materials. Magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic liquid. This kind of suspension exhibits low-viscosity Newtonian fluid characteristics under the condition of zero magnetic field; while under the action of strong magnetic field, it presents high-viscosity, low-fluidity Bingham fluid characteristics. [0003] The torsional damper is an important component in the automobile clutch, mainly composed of elastic elements and damping elements, among which the spring element is used to reduce the torsional stiffness of the head end of the drive train, ...

AI Technical Summary

Problems solved by technology

[0005] In view of the problems existing in the prior art, the present invention provides a magneto-rheological torsional shock absorber to solve the problem that the damping of the torsional shock absorber cannot be adjusted under working conditions

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