Pitch wheel lift type

The present invention discloses a lift-type pitch impeller comprising an impeller shaft with the impeller shaft rotatably coupled to the blade holder, the blade holder is articulated to the end portion of the blade, and a blade rotation mechanism; said mechanism comprises a vane rotatable with the impeller shaft pitch drive axis provided with fin pitch drive fixedly coupled to one end provided with a pitch drive conflicting wheel pitch push rod sleeved pitch push rod and having one end fixed to the blade holder elastic return means, and both ends of the pitch push rods, hinged blade pitch links. The present invention can give full play to the maximum power capability of the work area, through the pitch technology makes minimal work area in the work capacity is improved radically; lift type blade pitch drive by the impeller enables strict accordance with the design of blades pitch the pitch angle variation, regardless of the wind speed, independent of the wind direction changes, the improvement effect is obvious.