Direct-driven wind turbine generator radial locking device

The utility model provides a direct-driven wind turbine generator radial locking device which comprises a stator, a rotor, a generator support structure and a locking pin assembly. The rotor is arranged between the stator and the generator support structure, and the rotor is adjacent to the generator support structure. The locking pin assembly is fixed on the generator support structure. The rotor is provided with a locking pin hole, and the locking pin assembly and the locking pin hole are correspondingly arranged. According to the device, the stator and rotor can be locked in the transportation, installation, commissioning and maintenance of a wind turbine generator, and the generator locking device can be used as a locking device in wind wheel lifting, wind machine commissioning and maintenance too. The direct-driven wind turbine generator radial locking device has a simple structure, the locking pin is in the generator support structure and above a walkway, the device is easy to operate, and the device can be used as a locking device between the stator and the rotor of the generator and also can be used as a locking device of the whole wind turbine.