Hybrid magnetic bearing of rotor inside vertical coil and assembled structure thereof
A hybrid magnetic bearing, vertical coil technology, applied in the directions of magnetic bearings, bearings, shafts and bearings, can solve the problems of difficulty, complex structure, increase the power consumption of the drive motor, etc., to achieve small magnetic circuit coupling effect, eddy current loss and resistance. The effect of reducing the hysteresis moment and simplifying the design structure
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Embodiment 1
[0065] see Figure 1-Figure 3 , This embodiment of the present invention is made up of rotor 1 and stator 2 two major parts such as above-mentioned scheme. The rotor 1 is installed inside the stator 2 to form an inner rotor. The rotor 1 is composed of a rotor core 11 and an inner magnetically permeable ring 12 , wherein the rotor core 11 is coaxially sleeved on the outside of the inner magnetically permeable ring 12 . The rotor core 11 of the rotor 1 is made of a thin-plate soft magnetic material with good magnetic permeability, such as electrical silicon steel plate, stamped and stacked; the stator 2 is composed of 8 electromagnetic coils 21, 8 coil cores 22, and an upper magnetically conductive cover plate 23 , a stator plate 24, four connecting rods 25 and a lower magnetically permeable cover plate 26, and the four connecting rods 25 connect the upper magnetically permeable cover plate 23, the coil core 22, the stator plate 24, and the lower magnetically permeable cover pl...
Embodiment 2
[0069] The hybrid magnetic bearing of the present invention can also be constructed in different ways in its combined structure. For example, if Figure 5 As shown, adopt two sets along the axial direction such as figure 1 The basic structure shown can constitute a magnetic bearing with radial four-axis active control and axial passive stability, that is, the present invention can be designed as a combination of multiple basic structures to meet different requirements. For this combined magnetic bearing, a non-magnetic spacer ring 8 can be set between the upper and lower magnetic bearing stators, and a non-magnetic spacer ring 9 can be set between the upper and lower magnetic bearing rotors 1 . Both the spacer ring 8 and the spacer ring 9 are made of non-magnetic aluminum alloy, copper or non-magnetic stainless steel. In this embodiment, as far as the single product of the present invention is concerned, except that the magnetization directions of the permanent magnets in th...
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