Cage-shaped rotor magnetic coupling capable of regulating speed

A magnetic coupling and cage rotor technology, applied in the direction of asynchronous induction clutch/brake, etc., can solve the problems of unsuitable for high-power electromechanical equipment transmission, poor reliability, long design cycle, etc., to facilitate serial design and manufacture , Reduce design and production costs, simple processing and assembly

CN102916558AInactive Publication Date: 2013-02-06葛研军
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-02-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a cage-shaped rotor magnetic coupling capable of regulating speed. The cage-shaped rotor magnetic coupling comprises a power input shaft, a connection device, a permanent magnet outer rotor assembly, a cage-shaped inner rotor assembly, a power output shaft and a mechanical speed regulating device, the permanent magnet outer rotor assembly is sleeved outside the cage-shaped inner rotor assembly, and even air gaps are arranged between the permanent magnet outer rotor assembly and the cage-shaped inner rotor assembly. A layout mode of permanent magnets in the permanent magnet outer rotor assembly adopts a radial layout mode or a circumferential layout mode. The cage-shaped rotor magnetic coupling adopts an inside-outside-inside sleeved mode, an outer rotor adopts a structure with alternative magnetic poles, an inner rotor adopts a squirrel-cage rotor structure in an asynchronous motor, a rotating magnetic field produced by rotation of the outer rotor is used, induced current is produced in a squirrel-cage guide strip of the inner rotor, and the rotating magnetic field and the induced current drive the inner rotor to rotate under effects of ampere force. The magnetic coupling is high in reliability and operating efficiency, and reduces design and production cost.
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Description

technical field

[0001] The invention relates to a magnetic coupler, in particular to a cage-type rotor magnetic coupler with adjustable speed. Background technique

[0002] The current speed control devices mainly include frequency conversion speed control, slip motor speed control, hydraulic coupler speed control and magnetic coupler speed control. Both frequency conversion and slip motor speed regulation have problems such as harmonic interference, low reliability, high maintenance cost and poor safety. The hydraulic coupling occupies a large space between the power machine and the working machine, and oil is used as the medium for torque transmission , the seal is easy to break, and oil leakage occurs; in addition, when the working machine rotates at a high or low speed (such as higher than 7000r / min or lower than 700r / min), the hydraulic coupling needs to be used in conjunction with the gearbox, which increases the number of failures point.

[0003] The magnetic coupli...

Examples

Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings. Such as Figure 1-13 As shown, an adjustable speed cage rotor magnetic coupler includes a power input shaft 1, a coupling device, a permanent magnet outer rotor assembly, a cage inner rotor assembly, a power output shaft 22 and a mechanical speed regulating device; The permanent magnet outer rotor assembly is set on the outside of the cage-type inner rotor assembly, and there is a uniform air gap between the two; the permanent magnet outer rotor assembly is connected with the power input shaft 1 through a connecting device, and the cage The inner rotor assembly is connected to the load through the power output shaft 22, and the mechanical speed regulating device is installed on the outside of the right casing 7, which can drive the connecting device and the permanent magnet outer rotor assembly to move axially;

[0042] The power input shaft 1 is a stepped sha...