Magnetic bearing component and compressor

Abstract

The invention relates to a magnetic bearing component and a compressor. The magnetic bearing component comprises a magnetic bearing, a fixing shell and a working clearance adjusting device. The magnetic bearing comprises a first iron core, a second iron core and a thrust disc, and the working clearance adjusting device is radially arranged between the radial inner periphery of the fixing shell and the thrust disc and axially arranged between the fixing shell and the second iron core. An axial end of the working clearance adjusting device is abutted against the second iron core, an avoidance gap is reserved between the fixing shell and the second iron core, and a distance between two axial ends of the working clearance adjusting device can be changed to realize adjustment of a working clearance of the magnetic bearing to make the working clearance accord with a design value. By the magnetic bearing component and the compressor, adjustment of the working clearance of the magnetic bearing can be realized conveniently on the premise that coil damage risks and machining errors in secondary machining of the magnetic bearing are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of magnetic suspension bearings, in particular to a magnetic suspension bearing assembly and a compressor. Background technique [0002] Magnetic suspension bearings have the advantages of low mechanical wear, low noise, and low energy consumption, and are widely used in ultra-high-speed mechanical equipment. [0003] figure 1 A schematic structural diagram of a magnetic suspension bearing assembly including a magnetic suspension bearing and a fixed housing in the prior art is shown. Such as figure 1 As shown, in the prior art, the magnetic suspension bearing assembly includes a magnetic suspension bearing and a fixed housing 5', wherein the magnetic suspension bearing includes a first iron core 1', a second iron core 2', a thrust plate 3', a rotating shaft 4', The first coil 6' and the second coil 7', the thrust disc 3' are fixed on the rotating shaft 4', the first iron core 1' and the second iron core 2...

AI Technical Summary

Problems solved by technology

[0008] Although the above-mentioned method of turning or grinding the end face of the iron core can realize the adjustment of the working gap, since the iron core needs to be processed twice by turning or grinding, the processing cost is high and the adjustment is difficult, and the second It is difficult to guarantee the shape and position tolerance during secondary processing, which may easily lead to incorrect working position of the iron core; in addition, it is easy to cause damage to the first coil 6' or the second coil 7' when turning or grinding the end face of the iron core, so as to affect the magnetic suspension bearing. Normal operation will cause electrical safety hazards, and may even directly cause the scrapping of the first coil 6' or the second coil 7', increasing production costs