Patent ID: 10865768

Abstract:
A wind wheel includes a main shaft, a wind plant hub, and a plurality of blades. Each blade includes a short elbow part with axial and sleeve segments connected at 30°-45° angle and a long wing-shaped part, connected to the sleeve segment with an end shaft and by support devices with bearings. The short elbow part is made of steel, and is a distance of 1.5-5 meters or 0.20-1.5 meters from a connection thereof to the hub, and at a juncture of the axial and sleeve segments has a 10°-80° elbow bend opposite a direction of rotation of the wind wheel. The sleeve segment of the short elbow part has a cylindrical skeleton with three double support rings and is connected to the wing-shaped part of the blade, a root end of which is supplied with a hollow steel shaft with three removable protuberances with the bearings.