External rotor radial-axial three freedom degree mixed magnetic bearing
A hybrid magnetic bearing and external rotor technology, applied in the direction of the shaft and bearing, bearing, shaft, etc., can solve the problems of poor stability of magnetic bearings, small bearing capacity of magnetic bearings, etc., and achieve reduction in size, size, and power loss Effect
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[0026] Example 1:
[0027] Such as figure 1 As shown, an outer rotor radial-axial three-degree-of-freedom hybrid magnetic bearing includes a rotor 1, an axial stator 6 with a two-piece six-pole structure with 2 x 3 poles, a radial stator 4, and a radial control coil 51, 52, 53, axial control coils 81, 82, and 3 permanent magnets 71, 72, 73. Each axial stator 6 on the left and right sides is composed of 3 axial stator magnetic poles 61, 62, 63 evenly distributed along the circumference, such as figure 2 Shown. The radial stator 4 with 3 magnetic poles evenly distributed along the circumference is located between the two axial stators 6. The 3 block-shaped circular permanent magnets 71, 72, 73 are made of high-performance rare earth permanent magnet material neodymium iron boron, all of the same shape and size, and radially magnetized, embedded in the 3 radial stator poles 41, 42, 43 In the outer annular groove, both radial and axial biasing magnetic flux 9 are provided. An axial ...
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