High-speed permanent magnet motor rotor structure
A permanent magnet motor and rotor structure technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve the problems of repulsive force generated by permanent magnets, difficult to fit tooling, etc., to avoid broken, convenient tooling difficulty , The effect of convenient finishing
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[0018] The present invention will be further described below in conjunction with the drawings and embodiments.
[0019] Such as figure 1 As shown in 2, the rotor structure of the high-speed permanent magnet motor of the present invention includes a rotor 1, a permanent magnet block 4, a magnetic pole interval 5, a bolt 6, a sheath 7, and the like.
[0020] The rotor 1 has a radial bolt hole 2 and an axial ventilation hole 3, which are connected. The permanent magnet block 4 and the magnetic pole interval 5 also have bolt holes, and the permanent magnet block 4 and the magnetic pole interval 5 are fixed to the rotor 1 by bolts 6. At this time, the entire rotor 1 can be subjected to finish machining of the outer circumference of the rotor, which reduces the fit tolerance and improves its concentricity to ensure its rotor dynamic balance at high speed.
[0021] The sheath 7 is made of high-strength metal such as titanium alloy or steel, and has holes corresponding to the rotor bolts, a...
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