Yaw control device of wind driven generator

The utility model discloses a yaw control device of a wind driven generator, belongs to the technical field of wind driven generators, and aims to solve the problems that yaw angle measurement is easily influenced by grease to be lost and is inconvenient to maintain. A measuring mechanism is rotatably connected to the right side of the outer gear through a rotating shaft, a worm is fixedly connected to the rotating shaft and arranged in the measuring mechanism, a fixing plate is fixedly connected to the top of the measuring mechanism, an oil injection mechanism is arranged at the top of the fixing plate, and a prompt mechanism is arranged on the fixing plate and the measuring mechanism. According to the utility model, through the integral and built-in measuring mechanism, when the fan yaws, the external gear can rotate to drive the measuring mechanism to measure the yawing rotation of the fan, so that the influence of oil stain on measurement is effectively prevented, and meanwhile, the problem that a yawing