Preparation method of wind power blade

A wind power blade and root method technology, applied in wind power generation, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as installation interference, large deformation, misalignment of screw sleeve holes and main engine bearing connection holes, etc., to achieve blade The effect of reduced root deformation and high counterboring precision
CN113733607AActive Publication Date: 2021-12-03JILIN CHONGTONG CHENGFEI NEW MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN CHONGTONG CHENGFEI NEW MATERIAL
Publication Date
2021-12-03

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Abstract

The invention belongs to the technical field of wind power blades, and particularly discloses a preparation method of a wind power blade. The preparation method comprises the following steps that at S1, an SS embedded part and a PS embedded part are manufactured, specifically, the SS embedded part and the PS embedded part each comprise a connecting flange, a plurality of sets of thread inserts, a UD block, a wedge-shaped block and a sealing ring; at S2, an SS embedded blade root and a PS embedded blade root are manufactured; at S3, an SS half shell and a PS half shell are poured; and at S4, the SS half shell and the PS half shell are subjected to mold closing, specifically, the position of an embedded blade root flange is adjusted on a blade mold, and then the SS half shell and the PS half shell are bonded, and after bonding and curing, the embedded blade root flange is removed, demolding is performed, and finally the blade is manufactured. A positioning tool is arranged on the blade mold, and the positioning tool can position and adjust the position of the embedded blade root flange. According to the method, the problems that the deformation amount is large, and installation interference is caused by dislocation of thread insert holes and a connecting hole of a main engine bearing due to the adoption of an existing blade root embedding technology can be solved.
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Description

technical field

[0001] The invention belongs to the technical field of wind power blades, in particular to a preparation method of wind power blades. Background technique

[0002] There are two types of blade root structures for wind power blades: perforated and pre-embedded. The demand for high power generation has made the development of large megawatt blades a trend. Large megawatt blades mean larger rotor diameters and larger blade root interfaces. Considering the strength of the blade root, the blade root of the perforated method is not enough to ensure the integrity of the blade. Safety. The pre-embedded blade root technology gradually replaces the blade root drilling method; the existing pre-embedded blade root structure is a screw sleeve, UD block and wedge block installed in the middle of the layup, poured together with the layup, and the end surface of the blade root screw sleeve after demoulding Carry out flatness grinding, then install flanges and bolts, and fi...

Claims

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