Direct-driven permanent-magnet motor

A technology for permanent magnet motors and machine bases, applied in magnetic circuits, electric components, electrical components, etc., can solve the problems of uneven loss of the upper and lower layers of the winding and the left and right layers, increase the burden of rotor heat dissipation, and unfavorable rotor heat dissipation, etc., to reduce the stator Reduce copper consumption and heat generation, improve product market competitiveness, and fix simple and reliable effects
CN106208436AInactive Publication Date: 2016-12-07中国船舶重工集团公司第七一二研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中国船舶重工集团公司第七一二研究所
Publication Date
2016-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a direct-driven permanent-magnet motor. The direct-driven permanent-magnet motor comprises a stator and a rotor, wherein the stator comprises a water jacket engine base and a stator iron core, the stator iron core is fixed on the water jacket engine base, a plurality of annular opening grooves are formed in a surface of the stator iron core according to a rule, stator windings are arranged in the opening grooves, the rotor comprises a rotor body with a support and a rotor fan, the rotor body comprises a rotation shaft and a rotor iron core, the rotor iron core is arranged on the rotation shaft and is formed by laminating a plurality of fan-shaped rotor punching sheets in a staggered way, a plurality tapered grooves are formed in the outer circumference of each fan-shaped rotor punching sheet, and T-shaped magnetic steel with a tapered cross section is arranged in each tapered groove. In the direct-driven permanent-magnet motor, the stator windings uniformly generate heat, the magnetic steel is simple and reliable in fixing, a glass fiber or a jacket sleeve is not needed to be bonded, the rotor body and the magnetic steel are low in heat generation, and the reliability and the safety of the magnetic steel are improved; and meanwhile, the motor process is further simplified, the motor cost is reduced, and the market competiveness of a product is improved.
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Description

technical field

[0001] The invention belongs to the technical field of motor manufacturing, in particular to a radial surface-mounted inner rotor direct-drive permanent magnet motor, which is mainly used in mine conveying machinery. Background technique

[0002] Mining machinery such as scraper conveyors, belt conveyors, elevators, ball mills, etc. are all low-speed high-torque transmission systems. At present, the system is generally composed of high-power asynchronous motors, reducers and hydraulic couplings. Due to the existence of reducers and hydraulic couplings and the phenomenon of large horses and small carts often appearing in the driving motor, the transmission system has disadvantages such as low efficiency, high power consumption, unstable starting, difficult starting with heavy loads, and heavy maintenance workload. cumbersome. In addition, the use of a multi-stage transmission system results in a large weight of the entire system and low torque and power densi...

Claims

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