JPH03115216U

JPH03115216U -

Info

Publication number: JPH03115216U
Application number: JP2548890U
Authority: JP
Priority date: 1990-03-12
Filing date: 1990-03-12
Publication date: 1991-11-28

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す側断面図、第２
図は第１図に示す−断面に沿う正断面図、第
３図は他の実施例を示す側断面図である。１……回転軸、２……磁気軸受ロータ、３……
駆動用ロータ、４……磁気軸受ステータ、５……
駆動用ステータ、８……スリーブ、８１……溝、
９……固定子枠、１０……非常用の転がり軸受。 Fig. 1 is a side sectional view showing an embodiment of the present invention;
The figures are a front sectional view along the cross section shown in FIG. 1, and FIG. 3 is a side sectional view showing another embodiment. 1...Rotating shaft, 2...Magnetic bearing rotor, 3...
Drive rotor, 4... Magnetic bearing stator, 5...
Drive stator, 8... sleeve, 81... groove,
9...Stator frame, 10...Emergency rolling bearing.

Claims

[Claims for Utility Model Registration] 1. A magnetic bearing rotor formed by laminating rings made of silicon steel sheets around the outer periphery of a rotating shaft, and a magnetic bearing stator supported by a stator frame via the magnetic bearing rotor and the air. In the magnetic bearing, the magnetic flux of the magnetic bearing stator is controlled so as to keep the eccentricity of the magnetic bearing rotor at zero, wherein a non-magnetic material is provided between the magnetic bearing stator and the stator frame. A magnetic bearing characterized by having a sleeve interposed therebetween. 2. The magnetic bearing according to claim 1, wherein the sleeve is made of a material having a vibration damping effect. 3. Claim 1 or 2, wherein a ring-shaped groove is provided on the outer periphery of the sleeve, and a vibration damping material is filled in the groove.
Magnetic bearings as described. 4. The magnetic bearing according to claim 1, wherein the sleeve has a honeycomb structure. 5. The magnetic bearing according to claim 4, wherein the space of the honeycomb structure of the sleeve is filled with a vibration damping material.