| 摘要 |
The present invention relates to a device for controlling a turbine (1) rotor blades (2) mounted on the hub (3) when a hydraulic servo cylinder (5) and another servo-cylinder (6) are provided. One end of the servo cylinder (5, 6) of the control rod (7, 8) is swivel mounted in the control crank (9) fixed to the shaft (3) of the rotor blade (2). In this alignment, adjustment, i.e. rotation at 360 degrees is possible. Here, the bearings (13, 14) of the control rod (7, 8) are arranged eccentrically, specifically are arranged outside the rotary shaft (17) of the hub (3). Alternatively, the auxiliary servo cylinder (6) is provided in addition to the main servo cylinder (5), and the control rod (8) is disposed on the control crank (9) on the opposite side of the control rod (7) of the main servo-cylinder (5) and arranged on the other side of the main servo-cylinder (5) in case of offset. Therefore, control over 180 degrees is also possible, and the dead point (present between the two) of the control rod (7) of the main servo-cylinder (5) can be also overcome. In this way, in case at least one cylinder (5, 6) capable of applying a necessary force is available, the dead point of the servo cylinder (5, 6) can be overcome. |
