Main bearing pedestal disc driving device of wind turbine generator

The utility model provides a wind turbine generator main bearing seat disc motion device which comprises a rotary speed reducer and a driving seat fixed on a main bearing seat, the rotary speed reducer is provided with an inner ring and an outer ring which rotate relatively, the disc motion device further comprises a driving arm connected with the outer ring and a fixed seat connected with the inner ring, and the driving arm is connected with the fixed seat. The driving arm is connected with the driving seat and drives the driving seat and the main bearing seat to rotate, and the fixed seat is connected with the main shaft and synchronously stays or moves with the main shaft. According to the utility model, the manpower configuration is reduced, the assembly progress of the whole main bearing seat is accelerated, and the rotation space required by the main bearing seat during the disc movement is not increased. 本实用新型提供一种风电机组主轴承座盘动装置，包括回转式减速器和固定于主轴承座上的驱动座，所述回转式减速器设有相对旋转运动的内圈和外圈，该盘动装置还包括与所述外圈连接的驱动臂和与所述内圈连接的固定座，