CONNECTION STRUCTURE FOR CONNECTING THE BLDAD ROOT FOR WIND TURBINE

摘要

PURPOSE: A coupling structure of a blade root for an aerogenerator is provided to reduce a load transmitted to a bolt through which the blade root and a blade pitch bearing are coupled, thereby remarkably improving stiffness against a fatigue load. CONSTITUTION: A coupling structure of a blade root(43) for an aerogenerator includes a reinforcing sleeve(35). The sleeve is interposed between the outer circumferential surface of a straight type bolt(31) and the inner circumferential surface of the blade root which the bolt penetrates.