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A wind power blade root embedded bolt positioning device and method

A technology for pre-embedding bolts and wind turbine blades, which is applied to household appliances, other household appliances, household components, etc., can solve the problem of not easy to ensure the flatness of the end face of the blade root, and the sealing problem of auxiliary tooling and blade root mold. It is not easy to ensure the flatness of the blade root end face, etc., to prevent the penetration of the cured resin into the bolt sleeve, ensure the flatness, and ensure the quality of the blade root.

Active Publication Date: 2021-07-09
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pre-embedded bolts can withstand greater loads, and the post-processing drilling link is eliminated, which saves space and reduces waste while improving blade output efficiency. However, there is a greater risk in the sealing between the auxiliary tooling and the blade root mold surface. And it is not easy to ensure the flatness of the end surface of the blade root
[0004] Document CN101865092A discloses a method for installing and locating bolts at the root end of megawatt-scale wind power blades. This invention puts T-shaped nuts into the blade root holes and performs positioning through positioning sleeves and positioning flanges, but does not solve the problem of auxiliary tooling. The problem of sealing with the surface of the blade root mold, and it is not easy to ensure the flatness of the end surface of the blade root

Method used

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  • A wind power blade root embedded bolt positioning device and method
  • A wind power blade root embedded bolt positioning device and method
  • A wind power blade root embedded bolt positioning device and method

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Embodiment Construction

[0051] as attached Figure 1-11 As shown, the present invention includes a blade root reinforcement layer 4 laid on the mold 1, one end is inserted into the blade root reinforcement layer 4, the other end is inserted into the flange plate 6, and the bolt sleeve 3 is inserted into the flange plate 6, and the The plate 6 is inserted into the positioning bolt 9 in the bolt sleeve 3, and the flange plate 6 is provided with a slot 613 matched with the bolt sleeve 3, and the flange plate 6 is provided with a through hole for the positioning bolt 9 to pass through. hole 612, a positioning bushing 10 for correcting the axis of the positioning bolt 9 is provided between the positioning bolt 9 and the flange plate 6, and a positioning groove 611 for embedding the positioning bushing 10 is provided on the flange plate 6 One end of the bolt sleeve 3 plugged into the blade root reinforcement layer 4 is provided with a sealing insert 2 for sealing the bolt sleeve 3, a sealing element I is p...

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Abstract

The invention discloses a wind power blade blade root pre-embedded bolt positioning device and method, comprising a blade root reinforcement layer laid on a mould, one end inserted into the blade root reinforcement layer, and the other end inserted into a flange plate The bolt sleeve, and the positioning bolt inserted into the bolt sleeve through the flange plate, a positioning bush for correcting the axis center of the positioning bolt is arranged between the positioning bolt and the flange plate, and the bolt sleeve is inserted into the blade One end in the root reinforcement layer is provided with a sealing insert for sealing the bolt sleeve, a sealing element I is provided between the bolt sleeve and the flange plate, a sealing element II is provided between the mold and the flange plate, and the positioning A sealing element III is arranged between the bolt and the flange plate. The invention can locate and orientate the bolt sleeves, ensure the sealing between the auxiliary tooling and the mold surface of the blade root, and accelerate the solidification speed of the blade root through heating.

Description

technical field [0001] The invention relates to the field of component assembly of wind power blades, in particular to a positioning device and method for pre-embedded bolts in the blade roots of wind power blades. Background technique [0002] Wind turbine blades are one of the key components of wind turbines, which convert wind energy into mechanical energy through the rotation of the blades, and then drive the generator to generate electricity. During the operation of the blade, it bears complex loads such as aerodynamic force, gravity and centrifugal force at the same time. Among them, the blade root connection becomes the most critical part in the blade design. Because the blade needs to be fixed to the hub, the blade root connection is the only "intermediary" connecting the blade and the hub, and the load acting on the blade is transferred to the hub through the blade root connection. The way the blade root is stressed is extremely complex, and it is also subjected t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/68B29C70/36B29L31/08
CPCB29C70/36B29C70/68B29L2031/085F03D1/066
Inventor 孙满仓林能发魏刚赵征征成腾龙罗钢曹靓
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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