Electrical machine with magnetic bearing and safety bearing

Details Electrical machine with magnetic bearing and safety bearing Electrical machine with magnetic bearing and safety bearing

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 17/00 (2006.01) H02K 7/08 (2006.01)

Patent

CA 2649448

In case there is a malfunction of the magnetic bearing in an electrical machine, in which such magnetic bearings drive a rotary shaft in a stator (10), a safety bearing (14,14')is provided. According to the present invention, the safety bearing (14,14') exhibits an outer ring (16,16') that is mounted on the stator (10), inside of which a revolving ring (22,22',26) is operated. The safety bearing according to the present invention is particularly suited for machines that have a particularly large and heavy shaft.

En cas de défaillance des paliers magnétiques, un palier d'équilibrage (14, 14') est prévu dans les moteurs électriques dans lesquels de tels paliers magnétiques dirigent un arbre rotatif dans un stator (10). Selon l'invention, le palier d'équilibrage (14, 14') présente une bague extérieure (16, 16') montée sur le stator (10), dans laquelle une bague rotative (22, 22', 26) est montée en glissement. Le palier d'équilibrage selon l'invention (14) convient particulièrement à l'utilisation dans les moteurs dans lesquels l'arbre est particulièrement grand et lourd.

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