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Magnetorheological brake for vehicle

A brake and magneto-rheological fluid technology, applied in the direction of brake types, brake components, liquid resistance brakes, etc., can solve the problems of slow brake response speed, fast wear of brake discs, low brake torque, etc., and achieve response speed Fast, strong braking ability, soft braking effect

Pending Publication Date: 2018-12-18
XUZHOU UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The brake is an important safety component of the vehicle. Most of the existing vehicle brakes use friction disc brakes. This type of brake faces many problems, such as insufficient braking force, braking void, slow braking response speed, and wear of the brake disc. As an important application branch of magnetorheological fluid, the magnetorheological fluid brake has the characteristics of fast braking response, less wear of braking parts, simple control, and small vibration. It is an ideal braking device, but its braking torque is lower than that of friction disc brakes

Method used

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  • Magnetorheological brake for vehicle

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the magneto-rheological fluid brake for this vehicle includes a brake disc and a brake brake, and the brake disc includes a brake connecting shaft 1, a brake left disc 2, a magnetically conductive and ventilated connecting column group 8, Magneto-rheological fluid housing 9, brake right disc 12, and magnetorheological fluid brake disc 10;

[0024] The brake includes a brake housing 3, and an outer piston 4, a magnetic field generating device 5, an inner piston 6 and a friction lining 7 that are slidably installed in the brake housing 3 and connected in sequence. compound piston;

[0025] The magneto-rheological fluid brake disc 10 is fixedly connected to the brake housing 3 through a stationary shaft 14 to form a non-rotating part of the magneto-rheological brake for vehicles.

[0026] Further, the brake left disc 2 , the magneto-rh...

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Abstract

The invention discloses a magnetorheological brake for a vehicle. The magnetorheological brake comprises a brake disc and a brake gate, wherein the brake disc comprises a brake connecting shaft (1), abrake left disc (2), a magnetic-conducting ventilating connecting column group (8), and a magnetorheological fluid shell body (9), a brake right disc (12) and a magnetorheological fluid brake disc (10) which are fixedly connected in sequence; and the brake gate comprises an outer piston (4), a magnetic field generating device (5), an inner piston (6) and a friction liner (7) which are connected in sequence. The magnetorheological brake disclosed by the invention has the magnetorheological fluid brake and mechanical-friction composite brake functions, and the brake capability is strong; the magnetorheological fluid brake function can be achieved in an instant when the pistons of the brake gate move, the response speed is high, the idle brake stroke is avoided, and the safety is high; the magnetorheological fluid brake power flexibility is controllable, the impact is small, and the degree of comfort is high; and the vehicle brake safety, reliability and comfort can be effectively improved.

Description

technical field [0001] The invention relates to a magneto-rheological fluid brake for vehicles, belonging to the technical field of mechanical brakes. Background technique [0002] Magneto-rheological fluid is a new type of intelligent material, which is mainly composed of ultra-fine metal soft magnetic particles (0.1 micron to 10 micron) with high magnetic permeability and low hysteresis, which are uniformly dispersed in a non-magnetic base carrier liquid through a surfactant And form a stable particle suspension system. The smart material has a remarkable and unique magneto-rheological effect, that is, it presents a free-flowing state (liquid state) when there is no external magnetic field, which is not significantly different from traditional lubricating oils, but it solidifies under the external magnetic field, and instantly changes from liquid to It is semi-solid, and its curing degree can be continuously adjusted according to the strength of the magnetic field. The en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D57/00F16D63/00F16D65/78
CPCF16D57/002F16D63/00F16D65/78F16D2065/788
Inventor 吴向凡王前胡志强谭玉珍
Owner XUZHOU UNIV OF TECH
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