초록 ▼

Undesirably high stresses are minimized in a magnetic thrust bearing (15) having a disc (52) mounted on a shaft (54). The disc (52) is flanked on both sides (60,62) by respective armatures (68,70) which act to apply a magnetic field to the disc (52) to locate the same at a desired location along the

Undesirably high stresses are minimized in a magnetic thrust bearing (15) having a disc (52) mounted on a shaft (54). The disc (52) is flanked on both sides (60,62) by respective armatures (68,70) which act to apply a magnetic field to the disc (52) to locate the same at a desired location along the axis (66) of the rotor (14) of the machine in which the thrust bearing (15) is employed. A peripheral, radially outwardly opening, annular groove (76) is disposed in the outer periphery (64) of the thrust bearing disc (52) to relieve stresses during operation.

대표청구항 ▼

[ We claim:] [1.] In a high speed dynamoelectric machine the combination ofa stator;electrical windings on said stator;a rotor journalled for rotation about an axis for rotation within said stator; anda magnetic thrust bearing for accommodation of forces applied to said rotor along said axis and inc

[ We claim:] [1.] In a high speed dynamoelectric machine the combination ofa stator;electrical windings on said stator;a rotor journalled for rotation about an axis for rotation within said stator; anda magnetic thrust bearing for accommodation of forces applied to said rotor along said axis and including a disc of magnetic material connected to said rotor and having a periphery in the form of a surface of revolution concentric with said axis; armatures flanking said disc for applying magnetic forces to said disc to position the same at a desired location along said axis; andstress relieving means in said periphery including an annular, generally radially outwardly opening, peripheral groove.