| 摘要 |
PURPOSE:To assemble a motor into an automatic controller and to quicken response, by rotating a second stator by means of a motor with a brake through gears. CONSTITUTION:A semi-circular gear 21 secured along circumferential direction and a gear 22 engagable with the gear 21 are arranged at a part of the outer circumference of a second stator B. The gear 22 is secured to the rotary shaft 23a of a drive motor 23 where one side of the rotary shaft 23a is supported by a bearing base arranged on the outer circumferential face of a frame 9 and a brake device 24 is provided at the other side thereof. A control circuit 31 receives signals from a displacement detector 30 for measuring displacement of the second stator B with respect to the first stator A and the like so as to control the drive motor 23 thus displacing the second stator by a predetermined amount or holding it as it is. Upon malfunction of the control circuit 31, motor shaft is rotated manually so as to rotary displace the second stator B manually. |
