Magnetic-gap-fixed permanent magnet speed regulator

Abstract

The invention relates to a magnetic-gap-fixed permanent magnet speed regulator comprising a rotor which is connected with an input shaft and a magnet rotor and an armature rotor which are connected with an output shaft and respectively arranged on the internal side and the external side of the circumference of the rotor. The rotor comprises winding coils A which are circumferentially distributed along the internal circumferential surface of the rotor and permanent magnets B which are circumferentially distributed along the external circumferential surface of the rotor. The magnet rotor comprises permanent magnets A which are circumferentially distributed along the external circumferential surface of the magnet rotor. The armature rotor comprises winding coils B which are circumferentiallydistributed along the internal circumferential surface of the armature rotor. The winding coils B and the winding coils A are connected in series in a homo-polar way, and a control system used for current regulation is connected in series between the two winding coils. A slip ring is installed on the rotor and the armature rotor. The armature windings are used so that the rotor heat loss can be greatly reduced, rapid, flexible and stable speed regulation response of the speed regulator can be realized by using the principle of current control and thus the transmission efficiency of the permanent magnet speed regulator having the structure can be greatly enhanced and the range of application is wider.

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. It can work in various harsh environments such as flammable and explosive, unstable voltage and lightning, and greatly reduce mechanical vibration. It is widely used in electric power, steel, metallurgy, petrochemical, papermaking, municipal, naval, 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, and has disadvantages such as poor torque transmission capability, high assembly difficulty, and waste of a large amount of ra...

AI Technical Summary

Problems solved by technology

Due to the use of the eddy current induction principle, the energy conversion efficiency is low, the heat generation is large, and a large amount of heat is generated during slippage

Using magnetic circuit adjustment system, the adjustment speed is slow and the response is not sensitive

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