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Wind power blade and manufacturing technology thereof

A wind power blade and manufacturing process technology, which is applied in the field of wind power blades and their manufacturing processes, can solve the problems of increasing the processing process and increasing the weight of the blade in the production of the blade-shaped skeleton, so as to simplify the machining process, improve the fatigue strength, and ensure smooth transmission. Effect

Active Publication Date: 2016-09-21
BAIYIN SINO WIND ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wind power blade and its manufacturing process to solve the problems in the prior art that the weight of the blade is increased by the metal connection cylinder, and the processing procedure is increased in the manufacture of the blade-shaped skeleton.

Method used

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  • Wind power blade and manufacturing technology thereof
  • Wind power blade and manufacturing technology thereof
  • Wind power blade and manufacturing technology thereof

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0038] The following uniaxial fabrics, biaxial fabrics and triaxial fabrics are all commercially available in the market.

[0039] A wind turbine blade, such as figure 1 As shown, it includes at least two blade sections, the blade section includes a blade root section 201 and a blade tip section 202, a connecting device is provided between each blade section to connect the blade as a whole, and a reinforcement layer 205 under the embedded part is laid at the section connection. , the reinforcement layer is composed of at least 3 layers of uniaxial fabric 11 and at least 2 layers of triaxial fabric 12 between layers, uniaxial fabric 11 is chord-wise butted, triaxial fabric 12 is chord-wise lapped, and laying at segmental joints The trailing edge reinforcement cloth 15, the tail edge reinforcement cloth 15 is approximately triangular; the embedd...

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Abstract

The invention provides a wind power blade and a manufacturing technology thereof, and aims to solve the problems that in the prior art, the blade weight is increased due to a metal connecting barrel and the processing procedure is increased due to manufacturing of a leaf-shaped skeleton. The manufacturing technology comprises the steps of fixation of flanges, laying of upper and lower reinforcing layers of an embedded part, arrangement of bolt sleeves and light sleeves, arrangement of wrench space blocks, lap joint of wedge-shaped strips and beam caps, splicing of connecting locating pins and segmental shells, and connection of segmental blades for an integral blade. According to the manufacturing technology, connecting structures of the segmental blades are more compact, the mechanical processing procedure is simplified, laying layers of the beam caps and the wedge-shaped strips are integrally designed, the thicknesses of the laying layers of the beam caps and the wedge-shaped strips are decreased, the rigidity of the blade is guaranteed to smoothly transit, the fatigue strength of a composite at segment connection parts is improved, and the blade weight is decreased; and unidirectional fiber composite laying layers are spliced in the chordwise direction, and composite laying layers are added among the layers, so that resin is guaranteed to uniformly permeate during suction injection, the torsional rigidity of segmental parts is improved, and smooth transmission of the local load of the segment connection parts of the blade is effectively guaranteed.

Description

technical field [0001] The invention belongs to the field of manufacturing wind power blades, and relates to a wind power blade and a manufacturing process thereof. Background technique [0002] In my country, the development trend of large-scale wind turbines has been established. With the continuous increase of blade length, problems such as difficulty in blade transportation, road traffic control, and increased transportation costs quickly emerged. Certain restrictions, such as: the length of the blades of wind turbines is tens of meters or longer, which are all beyond the limit; Shipping the blades is very expensive, and in some areas it can't even be delivered at all. The transportation of large blades will become a thorny problem in the development of wind energy in my country. The design and manufacture of blade segments will play an extremely important role in solving this problem, and the smooth manufacture and assembly of segmented blades is the most critical. T...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D3/06B29C70/36B29L31/08
CPCB29C70/36B29L2031/085F03D1/0675F03D3/062Y02E10/72Y02E10/74Y02P70/50
Inventor 马寅虎李泽科秦志文刘普亮许秀强刘华
Owner BAIYIN SINO WIND ENERGY
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