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Sectionalized-assembly type fan blade and manufacturing method thereof

A technology for fan blades and a manufacturing method, applied in the field of segmented assembled fan blades and their manufacturing, can solve the problems of large space occupied, high cost, and difficult manufacturing of fan blades, so as to save manufacturing costs, use safety, and save workshops Effect

Inactive Publication Date: 2013-01-16
CRRC WIND POWER(SHANDONG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the greater the power of the wind turbine, the longer the length of the fan blades. With the development of horizontal axis wind turbines to high power, the length of the fan blades is also getting longer and longer. The length of the fan blades has reached more than 50 meters, or even more. Longer, larger molds are required for the manufacture of fan blades, but large molds occupy a large area of ​​the workshop, are difficult to manufacture, and cost high, which affects the development of production enterprises
At the same time, because the longer fan blades take up a lot of space, it is very inconvenient to transport and store the fan blades
Also do not have fan blade and its manufacture method that solve this problem preferably on the market at present

Method used

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  • Sectionalized-assembly type fan blade and manufacturing method thereof
  • Sectionalized-assembly type fan blade and manufacturing method thereof
  • Sectionalized-assembly type fan blade and manufacturing method thereof

Examples

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Embodiment Construction

[0026] A segmented assembled fan blade of the present invention comprises a blade body, the blade body is at least divided into two sections each provided with butt joint surfaces, and the butt joint surfaces between adjacent segments of the blade bodies are matched and connected with each other. The two connecting surfaces of the two adjacent blade bodies are respectively provided with a chute 5 and a guide rail 7 matched with the chute 5; when assembled, the guide rail 7 is embedded in the chute 5 and connected Connected by bolt 8.

[0027] Further description will now be given in conjunction with the embodiments and accompanying drawings, taking the sub-blade body divided into three sections as an example.

[0028] Such as figure 1 As shown, the blade body is divided into a blade root 1 , a blade middle 3 and a blade top 4 . Such as figure 2 , 3 , 4, and 5, the blade body is hollow, and the inclined surfaces at the ends of two adjacent segments of the blade body are us...

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Abstract

The invention discloses a sectionalized-assembly type fan blade and a manufacturing method thereof. The fan blade comprises a blade body, wherein the blade body is at least divided into two sections which are respectively provided with an abutting surface; and the abutting surfaces between adjacent sectionalized blade bodies are fitted and connected. The invention has the beneficial effects that sectionalized manufacture can be conducted without larger dies, thereby saving workshop cost and manufacturing cost; sectionalized transport and storage can be realized, thereby being more convenient;and each sectionalized-assembly is more convenient and the assembly is firmer, thereby being safe to use.

Description

technical field [0001] The invention belongs to the technical application field of wind power generators, and in particular relates to a segmented assembled fan blade used on a high-power wind power generator and a manufacturing method thereof. Background technique [0002] At present, with the rapid development of wind power, the demand for blades as an important component of wind turbines is also increasing. Generally speaking, the greater the power of the wind turbine, the longer the length of the fan blades. With the development of horizontal axis wind turbines to high power, the length of the fan blades is also getting longer and longer. The length of the fan blades has reached more than 50 meters, or even more. Longer, larger molds are required to manufacture fan blades, but large molds occupy a large area of ​​the workshop, are difficult to manufacture, and cost high, which affects the development of production enterprises. At the same time, since the longer fan blad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C39/10F03D11/00
CPCY02E10/722Y02E10/72Y02P70/50
Inventor 刘勇于良峰吴树梁何金海周传海崔建军
Owner CRRC WIND POWER(SHANDONG) CO LTD
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