Low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing

Abstract

The invention discloses a low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing which comprises a stator and a rotor iron core, wherein the stator iron core comprises an axial part and a radial part; the stator comprises a left radial magnetic bearing iron core and a right radial magnetic bearing iron core as well as a left ring-shaped permanent magnet, a right ring-shaped permanent magnet, a left axial magnetic bearing iron core and a right axial magnetic bearing iron core; and a magnetism-isolated aluminum ring is arranged between the left axial magnetic bearing iron core and the right axial magnetic bearing iron core. The invention effectively solves the defects of a current five-degree-of-freedom magnetic suspension system and provides the low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing which is small in size, is light in mass, is short in axial length, is high in clinical rotation speed, is high in iron core utilization rate, is simple in structure, is simple to manufacture and assemble, controls magnetic flux without the permanent magnets in the axial direction and in the radial direction, and can generate greater axial suspension force and radial suspension force.

Description

technical field [0001] The invention relates to the technical field of bearing manufacturing, in particular to a bearing with short axial length, high critical speed, high utilization rate of iron core material, small volume, light weight, simple structure, manufacture and assembly, and can produce larger axial and diameter bearings. Low-power permanent magnet biased five-degree-of-freedom integrated magnetic bearing for levitation force. Background technique [0002] The magnetic bearing is a new type of high-performance bearing that uses the electromagnetic force between the stator and the rotor to suspend the rotor in space, so that there is no mechanical contact between the stator and the rotor. Since there is no mechanical contact between the stator and the rotor, the rotor of the suspension system supported by the magnetic suspension bearing can reach a high operating speed, and has the advantages of no mechanical wear, low energy consumption, long life, no lubrication...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a low-power permanent magnet biased five-degree-of-freedom integrated magnetic bearing. Short axial length, high critical speed, high utilization rate of iron core, simple structure, manufacture and assembly, neither axial nor radial control magnetic flux passes through permanent magnets, which can generate greater axial and radial levitation force with low power Five degrees of freedom integrated magnetic bearing with loss of permanent magnet bias

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