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Construction variable rotary magnetic current flowing deforming brake

A magneto-rheological fluid and rotary technology, which is applied in the direction of liquid resistance brakes, brake types, mechanical equipment, etc., can solve the problems of brake working torque reduction, magnetorheological efficiency reduction, and brake structure invariance, etc., to increase damping Torque, improved magnetorheological efficiency, high economic and social benefits

Inactive Publication Date: 2004-03-17
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

[0004] In the prior art, the rotary brake (Anon. Brake cusexercise-equipment cost. Design News, 1995, 50 (23): 39) manufactured by Lord Company of the United States has controllable slewing resistance, compact structure, stable operation, and low power consumption. However, at a higher speed, it will cause extremely high rheological velocity and shear strain rate, which will reduce the magneto-rheological efficiency, thereby indirectly reducing the working torque of the brake; at the same time, the brake also has a structurally invariable question

Method used

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Embodiment Construction

[0013] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the present invention mainly includes: a bearing end cover 1, a sealing cover 2, a magnetically conductive inner cylinder 3, an electromagnetic coil 4, a magnetically conductive outer cylinder 5, a rotating shaft 6, a positioning key 7, a bearing 8, a magnetorheological fluid 9, and a turntable 10. Sealing material 11. Both the magnetically permeable inner cylinder 3 and the magnetically permeable outer cylinder 5 are cylinders made of magnetically permeable materials, wherein the magnetically permeable inner cylinder 3 is provided with a disc-shaped separation structure, and the center of the structure is provided with a shaft for the rotation of the rotating shaft 6. round hole.

[0015] After the rotating shaft 6 passes through the magnetic conduction inner cylinder 3, it is connected with the two ro...

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Abstract

Construction variable rotary magnetic current flowing deforming brake, mainly comprises a bearing end cap, sealing cap, magnetic conduction inside tube and outside tube, magnet coil, rotation shaft, positioning key, bearing, magnetic current variation liquid, rotating disc and sealing material, wherein the magnetic conduction inside tube and outside tube are both cylinders made of magnetic conduction material, and a separating arrangement is arranged on the magnetic conduction inner tube, the rotation shaft crosses the the magnetic conduction inner tube and connects with the rotating disc, the magnet coil is adhered into the magnetic conduction outer tube, and encloses the magnetic conduction inner tube, the magnetic current flowing deformation liquid is injected into the magnetic conduction inner tube, the separating arrangement is arranged on the magnetic conduction inner tube divides the brake into two chambers, which can determine to mount one or two rotating discs. The brake according to the invention can increase the magnetic current flowing deformation efficiency, and guarantees a large damping moment for the brake.

Description

technical field [0001] The invention relates to a rotary brake, in particular to a rotary magneto-rheological fluid brake whose brake structure can be flexibly changed through a turntable and a positioning key, and belongs to the technical field of power machinery engineering. Background technique [0002] Magnetorheological fluid is composed of base fluid, magnetic material suspended in base fluid and stabilizer, and has the characteristics of magnetic material and liquid fluidity. Under the action of an external magnetic field, the rheological properties of magnetorheological fluid can change rapidly, and the rheological properties change with the change of the external magnetic field intensity. The change of the apparent viscosity of the magnetorheological fluid is continuous, reversible, rapid and easy to control, that is, the apparent viscosity of the magnetorheological fluid has the characteristics of stepless adjustment, so that the magnetorheological fluid is used in...

Claims

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Application Information

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IPC IPC(8): F16D57/00
Inventor 邹剑陈进董广明
Owner SHANGHAI JIAO TONG UNIV
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