Blade locking device for wind turbine generator

The blade locking device comprises a gear motor, one end of the gear motor is arranged in a bearing seat, the other end of the gear motor is exposed out of the bearing seat, the bearing seat is connected with a shaft sleeve through a bolt, a locking proximity switch and an unlocking proximity switch are arranged at the top of the shaft sleeve, and an oil collecting bottle is installed on the side face of the shaft sleeve. A central shaft is arranged in the bearing seat, one end of the central shaft is matched with the double-row tapered roller bearing and is locked through a round nut, and the other end of the central shaft is in threaded connection with the gear pin head; a hub is connected to the left side of the base, and the bearing seat is fixed to the base through bolts. The device is simple in structure, convenient to install and maintain, high in reliability, long in service life, heavy in anti-corrosion technology and suitable for severe working environments. 本发明公开了一种风电机组用叶片锁紧装置，包括减速电机，所述减速电机一端设置于轴承座