Fixed-magnetic gap permanent-magnet speed regulator

Abstract

The invention relates to a fixed-magnetic gap permanent-magnet speed regulator. The fixed-magnetic gap permanent-magnet speed regulator comprises a conductor rotor and a permanent-magnet rotor which is arranged in the conductor rotor, wherein the conductor rotor comprises an input shaft and a conductor, the permanent-magnet comprises an output shaft and a permanent-magnet cylinder, the permanent-magnet cylinder comprises at least one permanent magnet which is circumferentially arranged, N poles and S poles of the permanent magnets are arranged along a circumferential direction of the permanentcylinder, adjacent magnetic pole ends of two adjacent permanent magnets are different in polarities, magnetizers are arranged at outer sides of two magnetic pole ends of each permanent magnet, and amovable magnetic guide cylinder is arranged at an inner side of the permanent magnet. Due to the adoption of a fixed-magnetic gap structure, the engagement area of the speed regulator is greatly expanded, the assembly difficulty is reduced, the rare-earth material is saved, and the torque transfer capability is greatly improved; and with the adoption of a magnetic path regulation structure, the power consumption of an adjustment execution mechanism is greatly reduced, the volume of the adjustment execution mechanism is greatly reduced to the greatest extent, so that the integral volume of thespeed regulator is greatly reduced, the material consumption is reduced, the installation space is saved, and convenience is brought to site installation and construction.

Description

technical field [0001] The invention relates to a governor, in particular to a permanent magnet governor with a fixed magnetic gap. Background technique [0002] The permanent magnet speed governor uses the magnetic coupling speed of the permanent magnet to realize the soft (magnetic) connection between the motor and the load, without any harmonic generation affecting the power grid, and has high reliability. , Inflammable and explosive, voltage instability and lightning and other harsh environments, greatly reducing mechanical vibration, widely used in electric power, steel, metallurgy, petrochemical, papermaking, municipal, ships, irrigation and mining industries. At present, the commonly used permanent magnet governors realize the speed adjustment by adjusting the air gap. The magnetic circuit regulator consumes a lot of power, has poor torque transmission capability, high assembly difficulty, and wastes a lot of rare earth resources. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

At present, the commonly used permanent magnet governors realize the speed adjustment by adjusting the air gap. The power consumption of the magnetic circuit regulator is large, and there are poor torque transmission capabilities, high assembly difficulty, and a lot of waste of rare earth resources.

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