Pitch motor loading means

The present invention provides a pitch drive motor loading apparatus, comprising a hub, a pitch bearing, pitch drive motor, loading the reel and the weight; hub fixed to a hub carrier, the hub defines a plurality of openings; pitch bearing disposed in the hub opening; pitch motor is provided in the hub, the pitch motor having an output terminal, an output terminal of the pitch bearing is connected, the pitch motor can be driven pitch rotary bearing; loading end of the roll is fixed to the pitch bearing, and the other end away from the pitch bearing extension, and loading the roll length is adjustable coaxially with the pitch bearing; counterweight by a hoisting rope in an end of the spool remote from the loading pitch bearing, one end of the rope is wound on the spool loaded, the other end of the lifting assembly weight. The present invention is designed to load the roll length-adjustable structure to achieve a variety of simulated test for detection of overturning moment. The pitch drive motor to more accurately simulate the loading device by the blade when the wind load condition, pitch drive motor to facilitate more accurate testing and analysis.