Permanent-magnetic biased axial magnetic bearing
A technology of axial magnetic bearing and permanent magnet bias, which is applied in the direction of shafts and bearings, bearings, engine components, etc., can solve the problems of high power consumption and difficulty in radial torsion control, and achieve low power consumption and reduced Effects of power consumption and axial size reduction
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[0013]As shown in Figures 2 and 3, the present invention consists of a stator part and a rotor 1. The stator part consists of 4 sets of stator cores 4, permanent magnets 3 and coils 5, and the 4 sets of stator cores 4 constitute 8 stators in the entire circumferential direction. The magnetic poles of the iron core are placed along the +X, -X, +Y, -Y directions. In order to increase the cross-sectional area of the magnetic poles of the stator iron core to improve the bearing capacity of the axial magnetic bearing, the area of the magnetic poles of the stator iron core is made into a circular arc surface. A coil 5 is wound on each stator core magnetic pole, an axial magnetic air gap 6 is formed between the stator part and the rotor, and an arc-shaped permanent magnet 3 is placed between the two stator core magnetic poles in each group of stator cores 4, and is permanently The magnets 3 and the two stator core magnetic poles of each group of stator cores 4 form a second air ga...
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