Permanent magnet eddy current speed controller based on conjugated magnetic feed rotor

Abstract

The invention discloses a permanent magnet eddy current speed controller based on a conjugated magnetic feed rotor. The permanent magnet eddy current speed controller comprises an auxiliary shaft and an extension main shaft, the auxiliary shaft and the extension main shaft are coaxially arranged, the extension main shaft is provided with a permanent magnet plate A, the conjugated magnetic feed rotor and a permanent magnet plate B in parallel, the auxiliary shaft is fixedly provided with a conductor rotor base plate, a conductor plate A and a conductor plate B are fixed to the conductor rotor base plate in parallel, the conductor plates are located between the conjugated magnetic feed rotor and the permanent magnet plates, and the permanent magnet plate A and the permanent magnet plate B are connected with a displacement regulating mechanism which drives the permanent magnet plate A and the permanent magnet plate B to move along the extension main shaft axially and synchronously in opposite directions. A more ingenious topological method is adopted and combined with a feasible optimized electromagnetic and mechanical structure, so that the permanent magnet speed controller based on the conjugated magnetic feed rotor is formed. Two magnetic fields with strength capable of being simply adjusted are formed only on the permanent magnet rotor, and no destructive magnetic acting force exists between the permanent magnet rotor and a conductor rotor which make no contact with each other.

Description

【Technical field】

[0001] The invention belongs to the technical field of mechanical transmission, in particular to a permanent magnet eddy current governor based on a conjugate-fed magnet rotor. 【Background technique】

[0002] The basic principle of the existing permanent magnetic coupling device is to use the relative motion between the conductor rotor and the permanent magnet rotor to induce a vortex magnetic field on the conductor rotor. . Using this mechanism, the power is transmitted from the power side to the load side in a non-contact manner. Its theoretical basis is classic and well-known, and the methods or prototypes for principle verification are diverse and simple, but there are still few mature engineering applications.

[0003] The first type of permanent magnet governor is disc-shaped, which adjusts the distance between the conductor rotor and the permanent magnet rotor, that is, adjusts the size of the air gap. The larger the air gap, the smaller the transm...

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