Anti-shearing connecting structure and segmented wind power blade

A technology for connecting structures and wind power blades, which is applied to wind power generation, wind power generators that are consistent with the wind direction, and wind power generators. The effect of ensuring the connection strength

Active Publication Date: 2021-09-03
CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are some segmented wind power blades, but when the wind power blades rotate, there will be a shear force. The failure mode of the segmented wind power blades is often due to this shear force, which leads to cracking and breaking of the segmental joints. Wait

Method used

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  • Anti-shearing connecting structure and segmented wind power blade
  • Anti-shearing connecting structure and segmented wind power blade
  • Anti-shearing connecting structure and segmented wind power blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figures 1 to 2 Shown: A shear-resistant link structure comprising:

[0040] The first segment and the second segment are arranged along the length direction of the wind power blade, and the first connecting structure 1 is arranged between the first segment and the second segment. The first connecting structure 1 is parallel to the length direction of the wind power blade, and the first Segmentation and the second segment are fixed;

[0041]The connector 2, the connector 2 includes at least one mating surface 21, the connector 2 cooperates with the first segment and the second segment at the mating surface 21, the mating surface 21 is parallel to the length direction of the wind turbine blade, and the connector 2 is provided with There is a second connection structure 22 , which passes through the mating surface 21 along a direction perpendicular to the length of the wind turbine blade, and fixes the first segment and the second segment to the connector 2 respe...

Embodiment 2

[0049] Such as image 3 As shown: Different from Example 1, the process hole 3 is set on the outer surface of the wind power blade and extends inward. Since the process hole 3 is set on the outer surface of the wind power blade, it is more convenient for subsequent maintenance without entering into the wind power blade The first connecting structure 1 can be inspected and repaired inside.

Embodiment 3

[0051] Such as Figure 4 As shown: different from Embodiment 1, the section of the connector 2 in the length direction of the wind turbine blade is T-shaped, and the connector 2 includes a horizontal section parallel to the length direction of the wind turbine blade and a vertical section perpendicular to the length direction of the wind turbine blade. The first subsection and the second subsection are respectively arranged at both ends of the vertical section, the first connection structure 1 passes through the vertical section, the second connection structure 22 is a screw, and the screw passes through the horizontal section, connecting the connector 2 with the first Segment and second segment are fixed.

[0052] Since the cross-section of the connecting piece 2 in the length direction of the wind turbine blade is T-shaped, although its shear resistance is slightly weaker, compared with the embodiment 1, the first segment and the second segment are more convenient for butt i...

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Abstract

The invention relates to the technical field of wind power blades, in particular to an anti-shearing connecting structure and a segmented wind power blade. The anti-shearing connecting structure comprises a first segment, a second segment and a connecting part, wherein the first segment and the second segment are arranged in the length direction of the wind power blade; a first connecting structure is arranged between the first segment and the second segment, and the first connecting structure is parallel to the length direction of the wind power blade and is used for fixing the first segment and the second segment; the connecting part comprises at least one matching surface, the connecting part is matched with the first segment and the second segment on the matching surface, and the matching surface is parallel to the length direction of the wind power blade; and a second connecting structure is arranged on the connecting part, the second connecting structure penetrates through the matching surface in the direction perpendicular to the length direction of the wind power blade, and the first segment and the second segment are fixed with the connecting part separately. According to the anti-shearing connecting structure, the length direction between the segments of the wind power blade and the direction perpendicular to the length direction are fixedly connected, so that the shearing force generated when the wind power blade rotates can be well resisted, and the connecting strength is guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power blades, in particular to a shear-resistant connection structure and segmented wind power blades. 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 source and occupies an increasingly important position in the energy structure of various countries. status. 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. [0003] In order to make full use of wind energy resources, wind turbines are also gradually becoming larger, and the length of their blades is also increasing. The areas rich in wi...

Claims

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Application Information

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IPC IPC(8): F03D1/06
CPCF03D1/0675Y02E10/72
Inventor 谈昆伦季小强白高宇
Owner CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECH
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