Assembling combined type blade of large-scale wind driven generator

Abstract

The invention discloses an assembling combined type blade of a large-scale wind driven generator, aiming at solving the problems of cost and transportation difficulty caused by integrally manufacturing of the existing large-scale wind power blade. The assembling combined type blade of the large-scale wind driven generator comprises a plurality of blade sections from the blade root to the blade tip, all blade sections are serially connected sequentially to form a whole blade, each blade section comprises a skin, a beam cap and a web and is divided into a connecting area, a transition area and a common section area, a plurality of grooves are arranged on the connecting area in the periphery direction, a plurality of screw holes are arranged in the beam cap at the connecting area, one end of a screw which penetrates through the screw hole is fixed in the groove corresponding to the connecting area of the blade section, and the other end of the screw which penetrates through a connecting piece of the connecting area of the adjacent blade section is connected with a locknut. The assembling combined type blade of the large-scale wind driven generator reduces the requirement for the transport vehicle of the integrated blade, reduces the transportation cost, and especially greatly reduces the additional investment of constructing a dedicated road for transporting over-length blade when a wind field is built in a mountainous area.

Description

technical field [0001] The invention relates to the field of wind power generation, and mainly relates to a large-scale wind power generator assembled combined blade and a connection method thereof. Background technique [0002] Energy and the environment have become urgent issues that human beings must face for survival and development today. China's rapid economic development in the past 30 years has relied on conventional traditional energy sources dominated by coal and oil. The shortage of traditional energy sources and the limitation of carbon emissions have become bottlenecks restricting China's rapid economic development. As new energy such as wind energy is renewable, non-polluting, and has broad prospects, the development and utilization of renewable energy represented by wind energy has become an inevitable trend and a strategic choice for countries around the world in terms of energy. The wind energy reserves are huge, and it is estimated that the world's availab...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high cost and difficult transportation faced by the existing large-scale wind power blade integral manufacturing, the present invention aims to provide a large-scale wind power assembly combined blade, which divides the integral blade into smaller blade segments and manufactures them separately. Through the rationally designed T-shaped connection, the adjacent blade segments are assembled segment by segment to form a whole, which solves the problems of traditional integral blades in manufacturing, transportation and cost.

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