Blocking device for rotor of wind power plant, has cylinder designed such that force for transferring piston from releasing position to blocking position is smaller or equal to force for transferring piston from blocking position

摘要

The device (5) has a blocking disk (6) connected with a rotor in a torque-proof manner and comprising blocking holes (9). A blocking cylinder (7) has a blocking piston (8) that acts together with the blocking holes for blocking the disk. The piston is movable between blocking and releasing positions in a pressure-medium loadable manner. The cylinder is designed such that blocking force for transferring the piston from the releasing position to the blocking position is smaller or equal to releasing force for transferring the piston from the blocking position to the releasing position.