Wind power blade connecting device

A technology of connecting device and wind power blade, which is applied to wind power generation, wind turbines that are consistent with the wind direction, wind turbines, etc., can solve the problem of reducing the fatigue life of bolts, increasing the connection load factor and bearing fatigue load, and increasing the dead weight of segmented blades. and other problems, to achieve the effect of simplifying the machining process, solving the increase in self-weight and compact structure

Active Publication Date: 2016-08-17
BAIYIN SINO WIND ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a connecting device for wind power blades to solve the problem of increasing the self-weight of segmented blades caused by the arrangement of adapter devices and longer bolt sleeves in the prior art, which will also cause the axial stiffness of the bolts to decrease, and the connection load coefficient And the fatigue load increases, reducing the fatigue life of the bolts

Method used

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  • Wind power blade connecting device
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Embodiment Construction

[0020] The present invention will be further described below with reference to the drawings and specific embodiments.

[0021] Such as figure 1 with 2 A wind turbine blade connecting device is shown. There are at least two sets of connecting devices. The adjacent two sets are arranged in forward and reverse directions and are connected by a tensioner 10. The bolt assembly 4 of the connecting device connects the segmented blade root section 1 and the segmented blade. The blade tip section 2 is connected, one end of the bolt assembly 4 is connected to the bolt sleeve 103, the other end of the bolt assembly 4 is connected to the light sleeve 104, the end of the light sleeve 104 is provided with a wrench space 105, the structure of the light sleeve 104 and the bolt sleeve 103 Same, but without thread inside and open at both ends. One end of the bolt assembly 4 connected to the light sleeve 104 passes through the light sleeve 104 and extends into the wrench space 105; the segmented bla...

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Abstract

The invention aims at providing a wind power blade connecting device to solve the problems that in the prior art, a connector device and a long bolt sleeve are arranged, and consequently, the dead load of a segmented blade is increased, the axial rigidity of the bolt is reduced, connecting load coefficients and borne fatigue loads are increased, and the fatigue life of the bolt is shortened. At least two sets of devices are arranged, and every two adjacent sets of the devices are arranged in the forward direction and the reverse direction correspondingly and are connected through a wall pulley. A bolt assembly of the connecting device is used for connecting a blade root section of the segmented blade and a blade tip section of the segmented blade. One end of the bolt assembly is connected with a bolt sleeve, and the other end of the bolt assembly is connected with a polished sleeve. The tail end of the polished sleeve is provided with a wrench space. Due to the design of an embedded block of the wind power blade connecting device, the connecting structure is optimized, the machining processes are simplified, the fixing manner is firm and reliable, and the problems existing the prior art are effectively solved.

Description

Technical field [0001] The invention belongs to the field of wind power blade manufacturing, and relates to a wind power blade connection assembly tooling device. Background technique [0002] In my country, the development trend of large-scale wind turbines has been established. As the length of the blades continues to increase, problems such as blade transportation difficulties, road traffic control, and increased transportation costs will soon become prominent. On the one hand, for safety reasons, the railway and highway management departments of all countries in the world have issues such as the length and height of the cargo carried. Certain restrictions, such as: the length of wind turbine blades is tens of meters or longer, these are all over the limit; on the other hand, China’s wind farms are very widely distributed, many places are remote and inconvenient for transportation. The cost of blade transportation is very high, and some areas cannot even be delivered at all. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCF03D1/06Y02E10/72
Inventor 马寅虎刘普亮秦志文李泽科许秀强刘华
Owner BAIYIN SINO WIND ENERGY
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