A kind of wind turbine rotor blade structure and preparation method thereof

A technology for rotor blades and wind turbines, which is applied to wind engines, wind engines, and mechanical equipment in the same direction as the wind, and can solve problems such as low stiffness of T-bolt connections, unfavorable structural reliability, and impact on assembly methods, etc., to achieve Conducive to connection strength and reliability, reduced transportation and manufacturing costs, low load factor effect

Active Publication Date: 2018-10-09
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, the structure of the segmented wind turbine blade directly affects its assembly method. At the same time, the T-bolt connection is not conducive to the reliability of the structure due to its low connection stiffness and low connection efficiency. Therefore, it is necessary to separate the existing wind turbines. The structure of segmental blade and its preparation method are improved

Method used

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  • A kind of wind turbine rotor blade structure and preparation method thereof
  • A kind of wind turbine rotor blade structure and preparation method thereof
  • A kind of wind turbine rotor blade structure and preparation method thereof

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] Such as figure 1 As shown, the rotor blade structure of the wind turbine of the present invention includes at least the first and second blade segments i and ii, and the first and second blade segments i and ii are sequentially connected by connecting bolt groups to form a whole blade , the first and second blade segments i and ii are made of composite material laminations, and can also be partially made of metal materials, and consist of a skin body, studs 2, bolt sleeves 3, light sleeves 4, and a prosthetic cavity 5 composition.

[0036] Such as Figure 1-3 As shown, the bolt sleeves 3 and light sleeves 4 are arranged alternately on the connecting end face of the main body of the skin. The optical sleeve 4 tha...

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Abstract

The invention discloses a rotor blade structure of a wind turbine and a preparation method of the rotor blade structure. The rotor blade structure of the wind turbine is formed by connecting two or more blade segments made of composites through a plurality of double-end studs. Connecting bolt sets comprise the double-end studs, embedded bolt sleeves and polished sleeves. Prefabricated prostheses capable of being taken out are embedded in the tail ends of the embedded polished sleeves. The bolt sleeves and the polished sleeves are connected through the double-end studs and nuts to connect the blade segments, and the bolt sleeves and the polished sleeves are alternately arranged to reduce the influence of the prostheses on structural strength. Locating flanges are fixed to a mold, outer-layer fiber cloth is laid, the bolt sleeves, the polished sleeves and the prostheses are fixed in sequence, wedge-shaped strips made of composites and light materials are contained, inner-layer fiber cloth is laid, auxiliary vacuum materials are laid, suction and injection of all the blade segments are completed, all the prostheses are taken out, the nuts are sequentially aligned and screwed, and assembly of the blade segments is completed.

Description

technical field [0001] The invention relates to a rotor blade of a wind turbine, in particular to a segmented wind turbine blade with a rotor blade structure of the wind turbine and a preparation method thereof, belonging to a manufacturing method of a wind turbine blade. Background technique [0002] The use of a large amount of fossil energy has not only promoted the development of technology, but also increased the burden on the earth's ecological environment. Air pollution threatens human life and health. Renewable energy has gradually become the preferred energy resource and will occupy a more important position in the energy structure of various countries. , as a form of renewable energy, wind energy has the advantages of low development cost, mature technology, and wide distribution, and has become a key direction for the development of renewable energy in recent years. In order to make full use of wind energy resources, wind turbines are gradually becoming large-scal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06B29C70/34B29C70/54B29C70/70F16B35/00F16B37/00
CPCY02E10/72Y02P70/50
Inventor 秦志文周瑞涛杨科赵晓路徐建中
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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