| 摘要 |
A guide vane operating mechanism for a hydraulic machine including a main shaft carrying a runner and guide vanes for varying the angle of attack of water to the runner. A guide ring is rotatably arranged around the main shaft, with a guide vane driving mechanism being provided for a linkage between the main shaft and the guide vanes so as to drive the guide vanes between fully-open and fully-closed positions. At least one servomotor has a reciprocating actuating rod, with a guide ring actuating mechanism for transmitting the driving power to the guide ring to cause a rotation of the latter. The guide ring actuating mechanism includes means connects the actuating rod to the guide ring in such a manner so as to permit the actuating rod and the guide ring to make a cranking motion relative to each other.
|
