Permanent magnet polarized external rotor radial magnetic bearing
A technology of permanent magnetic bias and magnetic bearings, applied in the direction of bearings, shafts and bearings, shafts, etc., can solve the problems of large excitation current, large axial length and volume, unfavorable control, etc., achieve low loss characteristics, shorten axial The effect of distance, avoiding coupling
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[0016]As shown in Figures 1 and 2, the present invention is generally composed of left, middle and right groups of stators and rotors, including three inner magnetic permeable rings: inner magnetic permeable ring I1, inner magnetic permeable ring II12 and inner magnetic permeable ring III14 , 2 permanent magnets: permanent magnet I13 and permanent magnet II16, 3 stator cores: stator core I2, stator core II11 and stator core III15, 8 excitation coils 3, 4 rotor cores: rotor core I4, rotor core II6, Rotor iron core III8 and rotor iron core IV10, 2 outer magnetic conductive rings: outer magnetic conductive ring I5 and outer magnetic conductive ring II9, 1 outer magnetic isolation ring 7, 12 air gaps 17. A certain gap is left between the inner surface of the rotor core and the outer surface of the stator core to form an air gap 17, and the gap is generally in the range of 0.2mm to 0.3mm. The stator iron core I2, stator iron core III15 and stator iron core II11 respectively form 12...
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