Variable-pitch wind turbine

Abstract

The invention relates to a wind turbine, in particular to a variable-pitch wind turbine. The top end of the spindle of the generator is provided with a connecting sleeve; a wind plate is inserted into the connecting sleeve; an inner rotating shaft of the wind plate is inserted to the connecting sleeve rotationally; the outer rotating shaft of the wind plate is inserted into the inner side of a connecting ring rotationally; the connecting ring and the connecting sleeve are concentric; a ring pull rod is arranged in the annular tubular inner cavity of the connecting ring; the top end of the outer rotating shaft is matched with the annual pull rod through a cam and a cam slot; the rotational loop is sleeved on the connecting ring; a main paddle is fixedly arranged on the loop; a loop torsion spring is arranged between the loop and the connecting ring; a strip locking groove is formed on one side of the loop; the pull rod is fixedly connected with a bolt; and the position of the bolt corresponds to that of the looking groove. The deflection angle of the paddle of the wind turbine remains constant so as to avoid resonance caused by the change in the deflection of the paddle; when there is strong wind, the main paddle can lean a certain angle back, so that the effective wind receiving area of a wind wheel can be reduced to protect the paddle from being damaged by the strong wind.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a variable pitch wind power generator. Background technique [0002] The use of natural wind for wind power generation is the full use of renewable energy by human beings. The wind turbine has the characteristics of convenient and flexible installation, no pollution, and environmental protection, and has been paid more and more attention by people. But at the same time, the wind in nature also has the characteristics of fluctuating and fluctuating, and the wind speed is unstable. Too much wind not only cannot generate electricity well, but also easily damages the wind turbine, causing unnecessary losses. Therefore, the method of dealing with high winds must be considered when designing wind power generation equipment. In the prior art, the methods for generators to deal with strong winds can be divided into two categories: the first category is side-biased speed control devices, that i...

AI Technical Summary

Problems solved by technology

In the prior art, the methods for generators to deal with strong winds can be divided into two categories: the first category is side-biased speed control devices, that is, when strong winds occur, the wind wheel deviates from the main wind direction, and the speed regulation is unstable for small wind turbines. For large wind turbines, the speed regulation action is slow

The second type is the variable-pitch speed-regulating type. The main meth

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