Foldable dual-row coaxial-blade wind driven generator device

Abstract

The invention discloses a foldable dual-row coaxial-blade wind driven generator device. The foldable dual-row coaxial-blade wind driven generator device comprises two rows of blade assemblies, wherein each row of blade assemblies comprises two two-segment foldable blades and a blade folding device; main blades are fixed-pitch blades; the roots of the main blades are hinged to a wheel hub through lug connecting seats; the other positions of the main blades are connected with the blade folding devices; the two rows of blades are arranged crossly and orthogonally after being unfolded; the foldable blades are oblique foldable blades; the power generation rate can be adjusted; the two rows of blades are positioned on the front part and the back part of a fan tower respectively, are connected to the same main shaft through a front wheel hub and a back wheel hub of a fan, and rotate synchronously in the same direction; the folding and unfolding of the blades can be controlled by folding driving devices. The device provided by the invention has the characteristics of simple structure, balanced stress, realization of complete folding and unfolding of the blades, easiness and convenience in controlling, high power generation efficiency and the like, and is a wind power generation device which is suitable for ship wind power, offshore oil platform wind power and the like.

Description

technical field [0001] The invention relates to a blade structure of a large-scale wind power generator and belongs to the field of wind power generation equipment. Background technique [0002] Wind energy resources are very rich in the world, and almost all regions and countries have considerable wind energy reserves. Oil crises have occurred frequently in recent years, and the oil reserves and coal reserves of countries around the world will be exhausted within hundreds of years. Therefore, China, the United States, the United Kingdom, Spain and other countries have gradually shifted their attention to the development and utilization of new energy. As one of the important components of renewable energy, wind energy has attracted widespread attention from researchers and has also received strong support from governments of various countries. [0003] From the 1970s to modern times, the world's wind power has achieved amazing development. In 1996, the world's total wind p...

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Problems solved by technology

[0008] There are very good wind resources on the sea, and sea transportation occupies a large proportion in the global logistics, and consumes a lot of energy. How to make full use of sea wind energy resources is exactly the goal of green energy that people are pursuing; For mobile platforms and offshore oil drilling platforms, a wind turbine device with foldable blades is proposed to solve the problem that the blades of the offshore wind turbine device are too long, which is not conducive to crossing bridges, entering ports, and encountering typhoons and causing blade breakage. problems, and to further greatly improve the power generation efficiency of wind turbines, a foldable double-row wind turbine device is proposed

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