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Z-pin enhanced composite material wind turbine blade and manufacturing method thereof

A technology for reinforcing composite materials and wind turbine blades, which is applied in the field of composite material reinforcement, and can solve problems such as low peeling resistance, poor bending resistance, and weak bearing capacity

Inactive Publication Date: 2019-09-17
KUANG CHI CUTTING EDGE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in related technologies, the present invention proposes a Z-pin reinforced composite wind power blade and its manufacturing method, which solves the problems of existing wind power blades, such as easy delamination of the upper and lower skins of the shell, poor bending resistance, Problems such as low anti-peeling performance and weak bearing capacity

Method used

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  • Z-pin enhanced composite material wind turbine blade and manufacturing method thereof
  • Z-pin enhanced composite material wind turbine blade and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this embodiment, the main beam 3 is an I-shaped main beam, and the manufacturing method includes the following steps:

[0038] Step 1: Using advanced pultrusion technology to prepare Z-pin 5, the Z-pin 5 is a cylindrical short rod made of fiber resin, and then implanting Z-pin 5 into the machined foam preform 6 through an ultrasonic gun;

[0039] Step 2: Lay the I-shaped main beam and connecting layer 4 of the composite material on the special mold according to the designed laying sequence and the number of layers;

[0040] Step 3: Lay the upper and lower shells in the upper and lower molds of the blade respectively, and then place the I-shaped main beam on the predetermined position of the lower shell 2, so that the lower surface of the lower edge of the I-shaped main beam and the lower shell The inner walls of the body 2 are fitted together to form a lower joint surface;

[0041] Step 4: Place the connection layer 4 along the inner edge of the lower case 2, so tha...

Embodiment 2

[0049] In this embodiment, the main beam 3 is a π-shaped main beam, and the manufacturing method includes the following steps:

[0050] Step 1: Using advanced pultrusion technology to prepare Z-pin 5, the Z-pin 5 is a cylindrical short rod made of fiber resin, and then implanting Z-pin 5 into the foam prefabricated body processed by the machine through an ultrasonic gun;

[0051] Step 2: Lay the π-shaped main beam and connecting layer 4 of the composite material on the special mold according to the designed laying sequence and the number of layers;

[0052] Step 3: Lay the upper and lower shells in the upper and lower molds of the blade respectively, and then place the π-shaped main beam on the predetermined position of the lower shell 2, so that the lower surface of the lower edge of the π-shaped main beam is close to the lower surface The inner wall of the housing 2 forms the lower joint surface;

[0053] Step 4: Place the connection layer 4 along the inner edge of the lowe...

Embodiment 3

[0061] In this embodiment, the main beam 3 is a π-shaped main beam, and increasing the number of π-shaped main beams, and forming a reinforced lattice grid by adjusting the direction of the π-shaped main beams, the manufacturing method includes the following steps:

[0062] Step 1: Using advanced pultrusion technology to prepare Z-pin 5, the Z-pin 5 is a cylindrical short rod made of fiber resin, and then implanting Z-pin 5 into the foam prefabricated body processed by the machine through an ultrasonic gun;

[0063] Step 2: Lay the π-shaped main beam and connecting layer 4 of the composite material on the special mold according to the designed laying sequence and the number of layers;

[0064] Step 3: Lay the upper and lower shells in the upper and lower molds of the blade respectively, and then place a plurality of π-shaped main beams on the predetermined positions of the lower shell 2, so that the lower surface of the lower edge of the π-shaped main beams is tight. Affix the...

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Abstract

The invention discloses a Z-pin enhanced composite material wind turbine blade and a manufacturing method thereof. The Z-pin enhanced composite material wind turbine blade comprises a shell which is composed of an upper shell and a lower shell; a connecting layer is arranged at the connection of the upper shell and the lower shell, the upper part of the connecting layer is attached to the inner side of the upper shell, the lower part of the connecting layer is attached to the inner side of the lower shell, and Z-pins for improving the connecting strength are implanted between the upper part of the connecting layer and the upper shell and between the lower part of the connecting layer and the lower shell. The Z-pin enhanced composite material wind turbine blade also comprises a main beam, wherein the main beam is attached to the inner side of the upper shell to form an upper bonding face, the main beam is attached to the inner side of the lower shell to form a lower bonding face, the Z-pins for improving the connecting strength are implanted at the joint of the upper bonding face and the joint of the lower bonding face, and filling foam also fill the shell and two sides of the main beam. By means of the technical scheme, the peel strength can be improved.

Description

technical field [0001] The invention relates to the technical field of composite material reinforcement, in particular to a Z-pin reinforced composite material wind power blade and a manufacturing method thereof. Background technique [0002] Wind turbine blades are the key components of energy conversion in wind turbines, and they are also the most complex components. The quality of their design and manufacture is directly related to the efficiency and service life of wind turbines, and affects the performance of the entire system. Among them, composite materials Wind turbine blades are more and more widely used because of their advantages of light weight, high strength, designability, good load-bearing performance, and good fatigue performance. [0003] In addition, the prior art also discloses different manufacturing processes of wind turbine blades. For example, the prior art discloses a Z-pin reinforced composite wind turbine blade structure and its manufacturing method...

Claims

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Application Information

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IPC IPC(8): F03D80/00B29D99/00
CPCB29D99/0025F05B2240/21F03D80/00B29C70/34B29C70/84B29C70/88B29D99/00Y02E10/72Y02P70/50
Inventor 不公告发明人
Owner KUANG CHI CUTTING EDGE TECH LTD