| 摘要 |
PURPOSE: A rotor for a wind power generator is provided to prevent fatigue fracture by preventing stress concentration on a joint of a cross bolt and a long-axis bolt and to couple a blade and a hub more stably. CONSTITUTION: A rotor for a wind power generator comprises: a hub forming the center of rotation; plural blades(200) installed along the circumference of the hub; plural bolt assemblies(300) provided to the opposite sides of the blade and the hub to couple the blade to the hub and composed of a cross bolt(310), a long-axis bolt(320), a washer(330) and a nut(340); and a fixing portion(400) fixing the cross bolt of each bolt assembly to the blade. |
