Stepless windmill capable of speeding up automatically

Abstract

The invention relates to a stepless windmill capable of speeding up automatically, belongs to the technical field of green energy and aims at solving the technical problems that according to a traditional windmill, the tip speed ratio is too small, the rated wind speed is constant, and the traditional windmill is cumbersome, easy to damage and low in efficiency. According to the technical scheme, the stepless windmill is composed of a polygonal hub 1, a rotating shaft mounting hole 2, blade mounting holes 3 and flexible blades 4. The stepless windmill is characterized in that the flexible blades arranged on the edge of the polygonal hub are composed of multiple rectangular flexible flat plates; one side line of each rectangular flexible flat plate coincides with the radius extension line of the polygonal hub; the plane of each rectangular flexible flat plate is parallel with the radial plane in a static state; each rectangular flexible flat plate can bend in the axial direction when blown by wind; each rectangular flexible flat plate can unfold in the radial direction under the action of centrifugal force and self-elasticity. The stepless windmill is mainly used for automatically adjusting the rated wind speed according to changes of wind force and loads so as to convert wind energy into mechanical energy.

Description

technical field [0001] The invention belongs to the field of green energy, specifically a self-increasing stepless windmill. Background technique [0002] The efficiency of wind turbines mainly depends on the tip speed ratio of the windmill used and the adjustment ability of the windmill to the rated wind speed. The higher the tip speed ratio of the windmill, the higher the rated speed of the windmill and the higher the rated speed of the generator, the smaller the quality of the generator and the windmill, the higher the efficiency; the greater the adjustment ability of the windmill to the rated wind speed, the higher the rated power. The wider the wind area in the state, the higher the efficiency. ZL: 201110035161 as the patent number; ZL: 200910163134.4; ZL: 200610046196.3; ZL: 201120072211.8 patented technology, the windmill used by the wind-driven generator set, its main technical problem is: 1. the tip speed ratio of the windmill is usually About 2 times, too small, ...

AI Technical Summary

Problems solved by technology

Overcoming the tip speed ratio of traditional windmills is usually about 2, too small, the rated speed is very low, the rated speed of the generator is also very low, usually 27rpm-300rpm, the mass of the generator and windmill is very large, and the efficiency is very small The shortcomings of traditional windmill blades are rigid, the radial bisector of the windmill blade coincides with the radius extension line of the windmill hub, the rated wind speed of the windmill is constant, the blades are broken, and the shortcomings of loud noise

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