Rotary magnetic rheological brake

A brake and magneto-rheological technology, applied in the direction of brake types, liquid resistance brakes, mechanical equipment, etc., can solve the problems of complex control mechanism, insufficient control torque, low manufacturing cost, etc., to solve the difficulty of magnetic circuit layout and simplify the control structure Effect

Inactive Publication Date: 2006-05-31
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low energy consumption control, insufficient control torque, and complex control mechanism in the existing braking control of rotary motion mechanisms, and to design a mechanism for rotary motion that implements timely torque control and controls the magnetic circuit. The layout is simple and easy, and the size of the control torque can be selected according to the needs of structural parameters and unique magnetic circuit design
[0006] The invention greatly simplifies the control structure of the brake, is less affected by temperature, solves the problems of difficult magnetic circuit layout, etc., has low manufacturing cost and is easy to realize automation

Method used

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  • Rotary magnetic rheological brake

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Embodiment Construction

[0008] The present invention is achieved through the following technical solutions:

[0009] 1. Structural design: The entire slewing brake is divided into three parts: rotor, stator and magnetorheological fluid between the rotor and stator. The stator is the housing of the brake and is stationary. The rotor is a part that conducts rotary motion. There are round tables at both ends of the rotor, which are integrated with the rotating shaft in the middle; the middle is divided into two layers: the inner and outer layers. The rotor and stator should be made of high magnetic permeability metal materials.

[0010] The gap between the circular platform on the rotor and the stator is far smaller than the radius of the circular platform and the axial length of the circular platform, and the gap between the circular platform on the rotor and the stator and the space between the plastic part and the stator are filled with magnetorheological fluid.

[0011] 2. The design of the magnet...

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Abstract

A rotary-type magnetic developing and change break includes mechanical section and magnetic control section. The mechanical section comprises rotor, stator and magnetic develop and change liquid in between. The magnetic control section comprises the inner layer of the rotor shaft wrapped with coil and out layer of plastic material.

Description

technical field [0001] The invention relates to the application of an intelligent material - magnetorheological fluid, to realize timely, reversible and continuous control of a rotary motion mechanism, and is used in the technical field of mechanical automatic control. Background technique [0002] Magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic liquid. Under the condition of zero magnetic field, the particle distribution of magnetorheological fluid in this kind of suspension is chaotic, showing the characteristics of Newtonian fluid with low viscosity; under the action of magnetic field, it is regular and forms chains or chain bundles along the direction of magnetic field The shape arrangement produces a solid-like characteristic, which can change from a Newtonian fluid with low viscosity and easy flow to a plastic Bingham fluid with high viscosity and difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D57/00
Inventor 赵晓昱
Owner SHANGHAI UNIV OF ENG SCI
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