| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating balance correcting device easy to miniaturize and resistant even to high-speed rotation. SOLUTION: This device comprises two sets of balance correcting units 100 and 200 coaxially with a rotating shaft 6. In each unit, a polar plate rotor 2 is fixed to the rotating shaft 6, and a plurality of salient pole lines 2a-2c each having a plurality of salient poles at circumferential prescribed pitch is axially adjacently arranged with the phases of the salient poles being shifted on the polar plate rotor 2. An exciting means 14 is arranged on the inside of a balance rotor 1 rotatably supported by the rotating shaft 6 to be matchable with the salient poles of each salient pole lines. A plurality of magnetic shield rings 31 and 32 are axially movably provided between the fitting surfaces of the balance rotor 1 and the polar plate rotor 2. The axial positions of the rings 31 and 32 are controlled by an operating mechanism, so that the salient pole lines 2a-2c are selectively magnetically shielded from the exciting means 14 to magnetically connect any salient pole line to the exciting means.
|
