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Wind generator blade and forming method thereof

A technology of wind power generator and forming method, which is applied in the direction of wind power generator components, wind power engines, wind power generation, etc., which can solve the problems of easy damage, difficult stripping, and degradation of blade aerodynamic performance, so as to achieve the goal of not being easily damaged and stripping convenient effect

Inactive Publication Date: 2010-10-20
内蒙古航天亿久科技发展有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a wind power generator blade and its forming method, which solves the problem that after the wind power generator blade is solidified, it is difficult to remove the film, it is easy to be damaged, and the mandrel cannot be reused; Under the action of heavy load, the cross-sectional shape of the blade is easily deformed, which eventually causes the aerodynamic performance of the blade to decline, and even the blade fails.

Method used

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  • Wind generator blade and forming method thereof
  • Wind generator blade and forming method thereof
  • Wind generator blade and forming method thereof

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Embodiment Construction

[0041] The specific embodiment of this invention is described in detail below in conjunction with accompanying drawing;

[0042] The invention discloses a blade of a wind power generator, which includes a casing and a combination of a web and a spar cap 13 inside the casing, used to strengthen the blade, such as an attached figure 2 , 3 , 4 shown. In addition, the outside of the shell is laid with a glass fiber reinforced layer. The glass fiber reinforced layer is a continuous whole, and there is no overlap between the glass fiber reinforced layer at the closed junction of the leeward side and the windward side.

[0043] figure 1 A schematic structural view of the combined structure of the web and the spar cap of the blade of the wind power generator disclosed in the present invention and a partial enlarged view of the joint portion of the web and the spar cap are shown. Such as figure 1 As shown in the schematic diagram of the combined structure of the web and spar cap,...

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Abstract

The invention mainly relates to an improvement of a wind generator blade, particularly to an integral forming process of a wind generator blade and a forming product thereof. The invention discloses a wind generator blade. A web and a spar cap of the wind generator blade are in an assembly structure, which can balance stress, enhance the mechanical property of the blade, and prevent the cross section of the blade from deforming in a better way. The invention also discloses a forming method of the wind generator blade. In the method, a mandrel of an inflatable air bag, which is in a shape similar to the inner shape of a shell, is adopted; and the air bag can be easily taken out by bleeding the air, which is convenient for demoulding and can prevent the blade from being damaged, and the mandrel is reusable.

Description

technical field [0001] The invention mainly relates to the improvement of the blade of the wind power generator, especially the integral blade of the wind power generator and its integral forming method. Background technique [0002] At present, domestic manufacturing of megawatt wind turbine blades generally adopts the method of bonding the upper and lower shells on the windward side and the leeward side at the leading edge and trailing edge, and the internal web is also bonded and fixed by adhesive to the shell. The blades produced by this process have great differences in material properties between the cured adhesive and the resin reinforced material of the blade. In terms of elastic modulus, the adhesive and the resin reinforced material have an order of magnitude difference, and the cured adhesive is brittle. , under the action of local movement, the bonding layer is easy to crack, causing the bonded structure to peel off, and the cross-sectional shape of the blade is ...

Claims

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Application Information

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IPC IPC(8): F03D11/00B29C70/32
CPCY02E10/722
Inventor 王伟任伟华任东风
Owner 内蒙古航天亿久科技发展有限责任公司
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