Method and Device for Automatically Adjusting Impeller of Wind Turbine Generator

Abstract

Disclosed are a method and device for automatically adjusting an impeller of a wind turbine generator, relating to the field of wind turbine generators. In a case of detecting a change in external wind force, the wind turbine generator pushes a direction adjusting frame to move towards a fixing ring, a stop plate enters the direction adjusting frame along with rotation of a main shaft of the wind turbine generator, and the stop plate pushes a buffer push plate to move, so as to press a spring buffer, so that push and impact vibration strength of the stop plate are decreased by a reaction force of the spring buffer, and a rotation speed of the impeller is slowed down; a location lock pin is inserted into a groove of the stop plate during continuous push and movement, so as to lock the impeller; and in this case, a contact sensor makes contact with an auxiliary push column, and the location lock pin moves out, so that the stop plate is pushed to rotate reversely, and a rotation direction of the impeller of the wind turbine generator is adjusted. According to the disclosure, the problem that failure of a lock pin is likely to be caused because an impeller locking mechanism is likely to collide with a locking portion rotating with a shaft during locking through hydraulic push in the prior art is solved.