Electrical spindle drived by AC permanent magnet synchronous motor

A permanent magnet synchronous motor and electric spindle technology, which is applied to synchronous motors with stationary armatures and rotating magnets, synchronous machine parts, electric components, etc., can solve the high technical requirements for motor rotor and stator cooling and affect the reliability of machine tools To solve the problems of safety and stability, large size of AC permanent magnet asynchronous motor, etc., to achieve the effect of good control characteristics, small torque fluctuation and easy cooling
CN101013836AInactive Publication Date: 2007-08-08DALIAN GUANGYANG SCI & TECH ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN GUANGYANG SCI & TECH ENG CO LTD
Publication Date
2007-08-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses one electrical axis driven by alternating permanent simultaneous motor, which comprises outer ring stator and inner ring rotor, wherein, the rotor inside is fixed with electrical axis core; the stator outer ring is covered with cooling cover with spiral tank. The invention is of high efficiency, low noise, reliable operation and small torque.
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Description

technical field

[0001] The present invention relates to an electric spindle, more specifically, relates to an electric spindle adopting AC permanent magnet synchronous technology. Background technique

[0002] The built-in electric spindle is a technology in which the motor and the spindle are integrated. The rotor of the motor is the rotating part of the spindle. At present, some electric spindles use AC permanent magnet asynchronous motors. The problem is that AC permanent magnet asynchronous motors are large in size and poor in dynamic balance. Both the rotor and stator of the motor need to be cooled, which requires high cooling technology. Since the two ends of the motor of the electric spindle are the spindle bearings, the heating of the motor will directly reduce the working accuracy of the bearings. If the heat dissipation of the motor is not solved well, it will affect the reliability and stability of the machine tool. Contents of the invention

[0003] In view of...

Claims

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