Low power consumption axial magnetic bearing with redundant structure
A technology of axial magnetic bearing and redundant structure, applied in the direction of shaft and bearing, bearing, mechanical equipment, etc., can solve the problems of low reliability and high power consumption, and achieve the purpose of increasing the magnetic pole area, improving the bearing capacity and simple structure. Effect
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[0017] As shown in Figure 2, Figure 3 and Figure 4, it is a low-power axial magnetic bearing with redundant structure, which is one of the technical solutions of the present invention, that is, the basic form of the present invention. It is composed of bearing body 9, excitation coils 2 and 3, permanent magnet 4, magnetic permeable ring 5, air gap 7, auxiliary air gap 10 and suspension 6. The permanent magnet 4 is closely attached to the bearing body 9, and the permeable ring 5 It is closely attached to the permanent magnet 4 and forms an auxiliary air gap 10 with the bearing body 9 in the axial direction. The bearing body 9 includes an outer magnetic pole 91 and a central magnetic pole 92. The outer magnetic pole 91, the central magnetic pole 92, the magnetic ring 5 and the suspension 6 An air gap 7 is formed between the permanent magnet 4 and a bias magnetic flux is generated in the air gap 7, and two sets of excitation coils 2 and 3 are wound in the bearing body 9. The excitati...
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