Disk type translation permanent magnetic stator type permanent magnetic vortex speed regulating device

Abstract

The invention discloses a disk type translation permanent magnetic stator type permanent magnetic vortex speed regulating device. The device comprises an input shaft and an output shaft in a concentric arrangement. The input shaft is orderly and concentrically provided with a permanent magnet stator and a magnetic rotor along an axial direction. The permanent magnet stator can translate along the axial direction of the input shaft. The output shaft is concentrically provided with a conductor rotor. The permanent magnet stator comprises an outer ring iron core, a radially magnetized permanent magnet ring and an inner ring iron core nested in order. The magnetic rotor comprises inner and outer ring permanent magnet poles which are in a staggered arrangement along a circumferential direction. Both the inner and outer ring permanent magnet poles are in an interval arrangement with corresponding iron poles, and the polarities of the inner and outer ring permanent magnet poles are the opposite. Compared with the prior art, the device of the invention has the advantages that through axially translating the permanent magnet stator, a speed adjustment function is realized, thus a speed regulating mechanism is simplified, the maintenance cost is reduced, the service life is prolonged, the structure is simple, the operation is convenient, the device is suitable for the occasions of different requirements, and the device has the functions of a permanent magnet coupling coupler, a soft starter and a permanent magnet speed regulator.

Description

technical field [0001] The invention belongs to the technical field of electric motor manufacturing, and relates to a permanent magnet eddy current speed regulating device of a disc type translational permanent magnet stator. Background technique [0002] With the popularization and application of high-performance permanent magnet materials, the permanent magnet speed control technology has been rapidly developed. It is a new type of speed control and energy saving technology for motor drive systems. There is no contact between the prime mover and the load, no vibration transmission and axis offset problems. , thereby greatly improving system reliability. The application of permanent magnet transmission technology has a history of several decades. Its application is to realize the non-contact transmission of torque between the prime mover and the load through magnetic field coupling. Mainly used in the chemical industry, petrochemical industry, coal cement, metallurgy, stee...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved in the present invention is to control the amount of coupled magnetic flux between the two rotors by changing the axial relative position of the magnetic rotor and the conductor rotor in the traditional eddy current speed regulating device, so as to realize the speed regulating function of the device. The position has high requirements on the mechanical technology of the operating device, which makes the system redundant, resulting in the disadvantages of poor stability and reliability of online speed adjustment. However, a method is provided that isolates the permanent magnet stator from the rotor part to realize non-rotating The axial translation of the object simplifies the air gap adjustment structure of the traditional permanent magnet eddy current coupler, so as to realize the stability and reliability of the online speed control system of the speed control device.

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