Modular permanent magnet compound self-gearing servo motor based on alternating poles

Abstract

The invention discloses a modularized permanent magnet composite self-decelerating servo motor based on alternating poles, which includes an armature winding, an inner stator fixing ring coaxially arranged sequentially from the inside to the outside, an inner stator module, an outer rotor and a non-magnetic aluminum shell. Among them, the dovetail protrusion on the non-magnetic aluminum shell can engage with the outer dovetail groove of the outer rotor to enhance the robustness of the rotor; the inner stator is a modular structure and is divided into main and auxiliary teeth; there are two main teeth on the inner stator There are no split teeth on the auxiliary teeth of the inner stator; the auxiliary teeth of the inner stator are consistent in size with the split teeth on the main teeth of the inner stator; the stator yoke of each inner stator module is provided with polygonal grooves and polygonal protrusions, Ensure the stable engagement of each inner stator module; the rotor is equipped with alternating pole magnets with the same polarity, and the outer side of the magnet adopts an arc structure to increase the fundamental wave content of the permanent magnet poles; On the sub-main teeth to enhance the phase-to-phase magnetic and thermal isolation of the armature winding.

Description

Technical field [0001] The present invention relates to the field of motor structural design, in particular, a modular permanent magnet composite self-deceleration servo motor based on alternating electrode. Background technique [0002] With the continuous development of motor technology, the AC servo motor has begun gradually replacing DC motor with its excellent performance and low cost, which has become an important motor type in the servo system. Due to the communication servo motor, there is a very wide application of machine tools, printing equipment, packaging equipment, textile equipment, laser processing equipment, robots, electronic, pharmaceutical, financial, automated production lines, etc., has become a research hotspot in recent years. One. With the rapid spread of the AC servo motor, the demand for the AC servo motor is also increasing. According to incomplete statistics, my country's related industries have a demand for servo motors from 3.85 million in 2014, and...

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Problems solved by technology

At the same time, it can be seen from the winding theory that because the traditional servo motor adopts the winding method of integer slot distributed winding, the winding structure is relatively complicated and the ends are large, so the mutual inductance between phases and the temperature rise of the winding are relatively serious, which is not conducive to the long-term operation of the motor. And increase the difficulty of motor assembly and later troubleshooting

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