The utility model discloses a vertical axis wind turbine, which comprises a main shaft, a counterweight wheel, the connecting rod and the spiral blade; the counterweight wheel inner ring is fixedly connected on the middle part of the main shaft; the main shaft is provided with a mounting hole around the axis of a spiral shape of the blade; the spiral plate structure, the spiral connecting rod two long sleeved on the main shaft and are respectively positioned on the same weight wheel on both sides; the corresponding position of the spiral rod ends of the spindle are arranged on both ends of the torsion spring; the blade shaft of the blades in the tail of the blade is penetrated on the spindle mounting hole; wherein the blade shaft is fixed a connecting piece; the connection open end and spiral rod outer hinge. The utility model has the advantages of different wind conditions by adjusting the blade windward area to achieve the same output under different wind speed spindle speed and torque, without additional output adjusting device, simplify the structure of wind turbine, is conducive to the promotion of small vertical axis wind turbine. ?
【技术实现步骤摘要】
【技术保护点】
１．一种风力发电机风轮，其特征在于：包括主轴（１）、配重轮（６）、螺旋连杆（７）以及叶片（２）；所述配重轮（６）内圈固定连接在主轴（１）中部；所述主轴（１）上设有绕其轴线呈螺旋状分布的叶片安装孔；所述螺旋连杆（７）包括两段套装在主轴（１）上的结构相同的螺旋板、且分别位于配重轮两侧；所述螺旋连杆（７）两端与主轴（１）两端对应位置均设置扭簧（３）；所述叶片（２）通过设于其尾部的叶片轴（４）穿设在主轴（１）上的叶片安装孔内；所述叶片轴（４）尾端均固定设置连接片（５）；所述连接片（５）开放端与螺旋连杆（７）外侧铰接。
【技术特征摘要】
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