Gap-adjustable magneto-rheological brake device

Abstract

The invention discloses a gap-adjustable magneto-rheological brake device. The gap-adjustable magneto-rheological brake device comprises a shaft assembly, a brake disc, a brake disc shell and a coil, wherein the shaft assembly consists of a shaft, a bearing, a bearing top ring and a bearing sleeve; the coil is mounted in the brake disc shell; the bearing sleeve is fixedly connected to the brake disc shell; the brake disc is fixed at the end of the shaft; a gap between the brake disc and the brake disc shell is filled with magneto-rheological fluid; the brake disc shell comprises a front disc, a coil inner ring, an outer ring, a rear disc and a tail disc; the tail disc is mounted in a central hole of the rear disc; the tail disc is parallel to the front disc; the front disc, the coil inner ring, the rear disc and the outer ring encircle to form a space for accommodating the coil; the front disc, the coil inner ring and the tail disc encircle to form a space for accommodating the brake disc and the magneto-rheological fluid; and linear grooves distributed radially are formed in the two sides of the brake disc and the inner surfaces of the front disc and the tail disc. The brake moment of the brake device is obviously increased; the brake effect is improved; and the resistance moment of the disc during rotation is reduced.

Description

technical field [0001] The invention relates to the field of liquid resistance braking, in particular to a gap-adjustable magneto-rheological braking device. Background technique [0002] Magnetorheological fluid is a suspension of solid microparticles in a base fluid, which is mainly composed of carrier fluid, magnetorheologically responsive particles and surfactants. It is a controllable fluid, under the action of a strong magnetic field, it can change from a well-flowing Newtonian fluid to a non-Newtonian fluid within a few milliseconds, and this change is continuously reversible and easy to control quickly. There are many kinds of magnetorheological devices designed based on the characteristics of magnetorheological fluids. They all have excellent characteristics such as fast response speed, simple structure and low energy consumption, and have wide application prospects in the engineering field. Important aspects of technology application. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect of small braking torque of existing magneto-rheological fluid brakes, the present invention provides an adjustable magneto-rheological braking device with easy processing, simple structure and large braking torque

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