| 摘要 |
PURPOSE:To reduce the number of consuming parts such as bearings or the like by a method wherein power and signal, necessary for the operation of an electric motor equipped with a brake, are transmitted to the outside of the machine through a slip ring. CONSTITUTION:The signals of limit switches 24, 25 are transmitted to the outside of the machine through the slip ring 12. A meter arm 26, fixed to a sleeve 10, operates a potentiometer or a differential transformer, which is a rotating wing angle detector 27, to detect the rotating angle of a shaft 17. This signal is also transmitted to the outside of the machine through the slip ring 12. Accordingly, the bearing, which was necessary in case of adjusting the rotating wing angle, becomes unnecessary. |
