| 摘要 |
FIELD: machine building.SUBSTANCE: system based on magnetic bearings comprises a shaft, a rotor, a stator mounted in a cooling jacket, a casing, end shields, an axial electromagnetic bearing, passive radial magnetic bearings, a radial damper, sensors of radial and axial rotor positions. An axial passive damper is added, it consists of an annular permanent magnet which is magnetically charged in the axial direction, installed in the end face surface of the shaft, and of a copper ring installed in the end shield. The radial damper is passive, it consists of an annular permanent magnet with radial magnetisation and a copper bush. Sensors of the rotor's radial position are made as Hall-effect transducers set perpendicularly to the external surface of the copper bush, and the sensors of the rotor's axial position are made as Hall-effect transducers set perpendicularly to the end face surface of the copper ring.EFFECT: increased service life, better energy efficiency of the system.1 dwg |
