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Circulating type magnetorheological fluid braking system

A magneto-rheological fluid and brake system technology, applied in the direction of liquid resistance brakes, brake types, brake actuators, etc., can solve complex disassembly, low braking power, and external heat dissipation of magnetorheological fluid Difficulties and other problems, to achieve the effect of easy disassembly, free flow, and good heat dissipation

Active Publication Date: 2015-07-29
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0003] At present, there are many magnetorheological fluid braking systems at home and abroad, but in the existing magnetorheological fluid braking systems, the working medium of the magnetorheological fluid is sealed inside the device, so that the magnetorheological fluid It is very difficult for the generated heat to dissipate outwards, which results in less braking power; in addition, most of the excitation coils of the existing magneto-rheological fluid braking systems are integral cylindrical structures, and the excitation coils are placed inside the device. Complicated

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the circulating magnetorheological fluid braking system includes a magnetorheological fluid tank 1, an oil pump 2, a cooling device 16, and a magnetorheological fluid brake with a U-shaped hoop structure excitation coil 12;

[0023] The main brake disc 8 in the magneto-rheological fluid brake is connected to the brake shaft 6 through a spline;

[0024] The driven plate 9 is connected with the magnetic isolation connecting cylinder 10 through a spline;

[0025] A magnetic isolation ring 11 is installed between the master brake disc 8 and the slave brake disc 9;

[0026] The bearing 5 is installed in the bearing seat 4, and the bearing seat 4 and the connecting plate 14 are respectively fixed on both sides of the magnetic isolation connecting cylinder 10;

[0027] The seal ring 7 installed in the bearing seat 4 seals the magnetorheolo...

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Abstract

The invention discloses a circulating type magnetorheological fluid braking system. The circulating type magnetorheological fluid braking system comprises a magnetorheological fluid box (1), an oil pump (2), a cooling device (16) and a magnetorheological fluid brake with a U-shaped hoop type magnet exciting coil (12); one of two concentrating flux plates (13) at the two sides of the U-shaped hoop type magnet exciting coil is fixed on the left head face of a bearing pedestal (4) while the other is fixed on the right head face of a connecting plate (14); the magnetorheological fluid box is communicated with a liquid inlet (3) in the magnetorheological fluid brake through the oil pump; a liquid outlet (15) in the magnetorheological fluid brake is communicated with the magnetorheological fluid box through the cooling device. The magnet exciting coil in the circulating type magnetorheological fluid braking system is convenient to disassemble and assemble; the circulating type magnetorheological fluid braking system is convenient to realize the multi-stage regulation of braking force, convenient for the free flow of the magnetorheological fluid, good in radiating effect and suitable for the large-slip frequency power braking field, and the circulating flow of magnetorheological fluid working medium is realized.

Description

technical field [0001] The invention relates to a magnetorheological fluid braking system, in particular to a circulating magnetorheological fluid braking system, which is suitable for the braking fields of machinery and vehicles. Background technique [0002] Magnetorheological Fluids (MRF) is a kind of intelligent material, which is mainly composed of soft magnetic particles, base carrier fluid and surface additives. The soft magnetic particles coated with surface additives are in a suspended state in the base carrier liquid. This suspension is in a free-flowing state (liquid state) when there is no external magnetic field, but under the external magnetic field, the "solidification" phenomenon occurs. It is a viscoplastic fluid (semi-solid) with a certain shear force. Using this unique rheological characteristic, many new devices can be developed. The magnetorheological fluid braking system is a new type of braking technology developed with magnetorheological fluid as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D57/00F16D65/14F16D65/78F16D121/20
Inventor 田祖织肖兴明吴向凡陈飞
Owner CHINA UNIV OF MINING & TECH
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