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Large wind force blade and manufacturing process thereof

A technology of wind blades and manufacturing process, which is applied in the field of large wind blades and their manufacturing technology, which can solve the problems of low strength, reduce the actual efficiency of blades, and affect the performance of composite materials, so as to achieve high bearing capacity, reduce weight, and improve overall performance. Effect

Inactive Publication Date: 2010-04-21
JIANGSU JIUDING NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Wind turbine blade technology is one of the key technologies of wind power generation systems. Traditional composite fan blades are formed in multiple steps by splitting. The strength of the shell bonding is low, and the cracking of the bonding has become one of the important quality problems of the blade, which affects the full performance of the composite material and greatly reduces the actual efficiency of the blade.

Method used

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  • Large wind force blade and manufacturing process thereof
  • Large wind force blade and manufacturing process thereof

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Embodiment Construction

[0011] As shown in the drawings, the blade structure of the present invention is as follows: an upper leaf shell 1, a lower leaf shell 2 and a mandrel 3, wherein the mandrel 3 is composed of two parallel main webs 4 and fixed connecting nets on both sides thereof frame 5, in this structure, the internal structure of the network frame 5 can be any shape.

[0012] In the present invention, the upper leaf shell 1 and the lower leaf shell 2 are glass fiber reinforced plastics, a mandrel 3 is placed between the two leaf shells, and the upper surface of the grid frame 5 of the mandrel 3 is completely consistent with the inner surface of the upper leaf shell 1. The lower part of the main web 4 in the mandrel 3 is completely consistent with the upper surface of the lower leaf shell 2, and the edges of the upper leaf shell 1 and the lower leaf shell 2 are joined together as a whole. When the product is manufactured, the lower leaf shell 2 is made first, and then the upper leaf shell Th...

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Abstract

The invention discloses a large wind force blade. The blade is mainly solidified and molded by a reinforcing material dipped with resin. The blade is characterized in that the process comprises the following steps: firstly, manufacturing a lower blade shell; setting a core mould in the lower blade shell; then placing an upper blade shell reinforcing material on the core mould; and finally compounding the mould, and dipping the resin on the reinforcing material in an upper blade mould to form the complete blade. The reinforcing materials of the upper blade shell and the lower blade shell are a whole body; and the edge reinforcing material of the upper blade shell is obtained by firstly reserving usage amount when the lower blade shell is manufactured to make the whole reinforcing material of the blade shells continuous. The large wind force blade has the advantages that the wind force blade is integrally molded, and glass fiber on a joint of the upper blade shell and the lower blade shell is continuous so as to greatly improve the overall performance of the blade; the blade shells have a closed structure and have higher bearing capacity so as to reduce the weight of the blade shells and thoroughly eliminate the portability of blade failure caused by bonding quality at the same time.

Description

technical field [0001] The invention relates to a blade of wind power equipment and its manufacturing process, in particular to a blade consisting of an upper blade shell, a lower blade shell and a mandrel. The lower end of the web is joined with the lower leaf shell, and the upper leaf shell is covered on the mandrel, and its lower end is joined with the upper end of the lower leaf shell, and the glass fiber reinforced material at the junction of the upper leaf shell and the lower leaf shell is continuous. Background technique [0002] Wind turbine blade technology is one of the key technologies of wind power generation systems. Traditional composite fan blades are formed in multiple steps by splitting. The strength of the shell bonding is low, and the cracking of the bonding has become one of the important quality problems of the blade, which affects the full performance of the composite material and greatly reduces the actual efficiency of the blade. [0003] At present,...

Claims

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Application Information

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IPC IPC(8): B29C70/28B29C70/36F03D11/00F03D1/06
CPCY02E10/722Y02E10/72Y02P70/50
Inventor 顾清波姜鹄崔佰君储开明
Owner JIANGSU JIUDING NEW MATERIAL CO LTD
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