Radial magnetic vibration damping apparatus, bearing support assemblies, and operational methods

摘要

A bearing support assembly adapted to support and damp radial vibration of a rotor shaft of a vertical motor is disclosed. The bearing support assembly has a thrust bearing adapted to couple to a rotor shaft and carry axial thrust loads along an axial axis, and a radial magnetic damping apparatus having one or more magnetic field-producing members adapted to provide a radially-acting magnetic force to act upon the rotor shaft to reduce radial vibration thereof. Vertical motors and methods of operating the vertical motors are disclosed, as are other aspects.

主权项

1. A bearing support assembly, comprising:
a thrust bearing for coupling to a rotor shaft and carrying axial thrust loads along an axial axis; and a radial magnetic damping apparatus comprising an upper member and a lower member that at least partially axially overlap each other, the upper member comprising a first permanent magnet set and the lower member comprising a second permanent magnet set, each permanent magnet set having a plurality of magnetic field-producing members providing radial magnetic force acting on the rotor shaft to reduce radial vibration thereof, wherein the thrust bearing comprises: a bearing housing; and a thrust block member for coupling to the rotor shaft,wherein one of the upper member and the lower member is coupled to the bearing housing, and the other of the upper member and lower member is coupled to the thrust block member.