Pneumatic clutch controlling permanent magnetic retarder

Abstract

The invention provides a pneumatic clutch control type permanent magnetism retarder, which relates to a permanent magnetism retarder which comprises a stator and a rotor, wherein, the stator comprises a stator frame, a magnet support, a magnet external holder, a permanent magnet; the rotor comprises a rotor disk and a flange, and the rotor disk and the flange are connected by a clutch device which has the same axis with the rotor disk; the permanent magnet is fixed on the magnet support. Under the normal driving state of a vehicle, the rotor disk does not rotate, does not generate eddy current which hinders the movement of a transmission shaft and does not generate heat. When speed is need to be lowered, the pneumatic clutch starts to work and the rotor disk rotates to realize speed slowing. By utilizing the pneumatic clutch to carry out control, the rotor does not rotate under non-working sate; therefore, the invention has the advantages of requiring no degaussing, no reverse braking torque when in no braking state, energy-saving, large torque moment, high reaction speed, compact structure, safety and long service life.

Description

Pneumatic clutch controlled permanent magnet retarder technical field The invention relates to an automobile retarder, in particular to a permanent magnet retarder. Background technique Automobile retarder is a kind of automobile braking auxiliary device that has been widely used in China in recent years. At present, it is mainly eddy current retarder. Other forms of retarder include hydraulic retarder, permanent magnet retarder, Generator retarder, exhaust brake retarder, etc. Among them, the permanent magnet retarder is gradually favored by users due to its advantages of light weight, no energy consumption, no loss, and maintenance-free. The permanent magnet retarder is an upgraded product of the eddy current retarder, which uses a permanent magnet to replace the coil and iron core used in the eddy current retarder to generate a magnetic field. The rotor disk rotates and cuts the magnetic field lines, thereby generating eddy currents and braking torques to achieve the...

AI Technical Summary

Problems solved by technology

At the same time, the response of the cylinder is slow, which cannot meet the requirements of automobile braking, especially the permanent magnet retarder with high torque.

In addition, this kind of permanent magnet retarder has a magnetic flux leakage phenomenon (degaussing is not clean), and there is still a reverse braking torque when there is no need for braking, resulting in increased energy consumption and fuel consumption of the vehicle, making many drivers unwilling use

Images