Hybrid brake combined with magnetic brake and friction brake and working mode switching method

Abstract

The invention discloses a magnetic brake and friction brake combined mixed brake and an operating mode switching method thereof. A brake caliper body side is provided with a magnetic brake fixing frame which is fixedly connected with a steering knuckle; the magnetic brake fixing frame is axially fixedly connected with the outer ends of each permanent magnet and each magnetic conducting block; an inner end side of each permanent magnet is provided with an iron core; an inner end of the iron core is fixedly connected with a magnetic conducting plate, and a side face of the iron core is connected with an upper end of a push rod; a lower end of the push rod extends into an oil cylinder; a coil winding is wound outside the iron core; a pair of permanent magnets, iron cores, magnetic conductingplates, coil windings, push rods and oil cylinders are arranged and symmetrically distributed on two sides of a brake disc; and both ends of each oil cylinder are provided with an oil way interface. Retarding brake can be switched back and forth among electromagnetic brake, permanent magnet brake and electromagnetic and permanent magnet brake, the brake requirement of an automobile under different working conditions is met, braking force of electromagnetic and permanent magnet superposed brake is higher than that of only permanent magnet brake, and more needed brake torque in the process of braking the automobile can be borne; and heat-resistant recession of the brake and riding comfort are improved.

Description

technical field [0001] The invention relates to a hybrid brake which is used for vehicle braking or deceleration by combining hybrid magnetic braking and friction braking, in particular to mode switching between electromagnetic braking and permanent magnet braking and a moving magnetic conductor A braking device that rotates at a high speed in a magnetic field to generate a resistance torque to achieve the purpose of vehicle braking. Background technique [0002] The function of the braking system is to make the car decelerate at an appropriate deceleration until it stops; when driving downhill, the car maintains an appropriate and stable speed. Any braking system should have sufficient braking efficiency, easy operation, reliable operation and good thermal stability. The noise generated during braking should be as small as possible, and at the same time, efforts should be made to reduce the emission of dust and other substances that are harmful to the human body. Brakes ar...

AI Technical Summary

Problems solved by technology

[0005] There is a literature disclosing a brake that combines permanent magnet braking with traditional friction braking, which solves some problems in the prior art to a certain extent, but the retarding braking part of this combined brake is permanent magnetic braking. , so the slow braking torque is small, and the braking torque is not easy to adjust. When the braking is over, there will be magnetic flux leakage, which will bring unnecessary energy loss to the normal driving vehicle

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