CN218838385U

CN218838385U - PET core material structure for wind power blade

Info

Publication number: CN218838385U
Application number: CN202320142284.2U
Authority: CN
Inventors: 王昊冉; 彭响方
Original assignee: Fujian University of Technology
Current assignee: Fujian University of Technology
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-04-11
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a wind-powered electricity generation is PET core structure for blade, including concave plate and flange, the flange is close concave plate one side is provided with the location lug of a plurality of parallels, the location lug is the rectangle, location lug side is provided with the joint reason, the concave plate is close flange one side be provided with location lug complex joint groove, the joint groove with the location lug joint is fixed, when carrying out the joint, the joint reason takes place the micro-deformation, so that the concave plate with the flange joint is fixed, the concave plate with the flange adopts the synthetic type of gluing. The concave plate and the convex plate made of the PET material are more environment-friendly compared with the light wood material, and the waste of resources is reduced; meanwhile, the positioning lugs can accurately position the layers during processing, and dislocation is avoided, so that the product quality is improved, and the whole plate is firmer and more durable in structure.

Description

PET core material structure for wind power blade

Technical Field

The utility model relates to a wind-powered electricity generation blade technical field especially relates to a PET core structure for wind-powered electricity generation blade.

Background

The wind power generation is clean, environment-friendly, green and low-carbon, and is an important form in the development of new energy industry. The wind power blade is an important component of a wind generating set, in order to reduce the weight of the wind power blade, some parts of the wind power blade adopt a sandwich structure, so that a sandwich material is a key material, the structure of a core material is one of important factors influencing the processing of the blade and the quality of the blade, balsawood is mostly adopted as the sandwich material at first, and along with the development of the technology, the PET foam core material is used for the core material of the wind power blade due to the characteristics of good mechanical property and light weight.

In a core material structure for a wind power blade, for example, a core material foam structure for a wind power blade in chinese patent No. CN202220052771.5 adopts a laminated structure, and is then bonded and formed by means of hot melting or gluing, etc., thereby obtaining the foam structure. However, one of the disadvantages is that when multiple layers are stacked, the layers are not well positioned during processing, which easily causes misalignment between the layers, and thus the quality of the finished product is affected.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a PET core structure for wind-powered electricity generation blade is proposed, the location that adds man-hour each layer can be accurate with the stack together, and the structure is more firm.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of PET core structure for wind-powered electricity generation blade, including concave plate and flange, the flange is close concave plate one side is provided with the location lug of a plurality of parallels, the location lug is the rectangle, location lug side is provided with the joint reason, the concave plate is close flange one side be provided with location lug complex joint groove, the joint groove with the location lug joint is fixed, when carrying out the joint, the joint reason takes place the micro-deformation, so that the concave plate with the flange joint is fixed, the concave plate with the flange adopts the synthetic type of gluing.

The utility model discloses preferred technical scheme lies in, the flange is adjacent a plurality of reinforcement grooves have been seted up between the locating convex block, add man-hour in pour into resin in the reinforcement groove.

The utility model discloses preferred technical scheme lies in, the concave plate with the convex plate adopts the PET material preparation.

The utility model discloses preferred technical scheme lies in, the thickness of concave plate is 15 ~ 60mm.

The utility model discloses preferred technical scheme lies in, the thickness of protruding board is 10 ~ 30mm.

The beneficial effects of the utility model are that:

the concave plate and the convex plate made of the PET material are more environment-friendly compared with the light wood material, and the waste of resources is reduced; meanwhile, the positioning lug blocks are used for accurately positioning each layer during processing, the dislocation is avoided, the product quality is improved, and the structure of the whole plate is firmer and more durable.

Drawings

Fig. 1 is an exploded view of a PET core structure for a wind turbine blade according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a structural principle of a PET core material for a wind turbine blade according to an embodiment of the present invention;

FIG. 3 is a schematic view of a concave plate according to an embodiment of the present invention;

fig. 4 is a schematic view of a structure of a convex plate according to an embodiment of the present invention;

in the figure:

1. a concave plate; 2. a convex plate; 21. positioning the bump; 211. a fastening edge; 11. a clamping groove; 22. and (7) reinforcing the groove.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in the figure, a wind-powered electricity generation is PET core structure for blade, including concave plate 1 and convex plate 2, convex plate 2 is close 1 one side of concave plate and is provided with the location lug 21 of a plurality of parallels, location lug 21 is the rectangle, location lug 21 side is provided with joint edge 211, concave plate 1 is close 2 one side of convex plate and is provided with location lug 21 complex joint groove 11, joint groove 11 is fixed with location lug 21 joint, when carrying out the joint, joint edge 211 takes place the microdeformation, so that concave plate 1 and convex plate 2 joint are fixed, concave plate 1 and convex plate 2 adopt the cemented type. The thickness of the concave plate 1 is 15-60 mm, the thickness of the convex plate 2 is 10-30 mm, the concave plate 1 and the convex plate 2 are made of PET materials, the concave plate 1 and the convex plate 2 are clamped with the positioning convex block 21 through the clamping groove 11, the problem of dislocation among the plates of each layer can not occur during assembly, the whole body is strong after clamping, and then the forming is carried out through gluing or hot melting and other modes; furthermore, in order to make the core material have better performance, the convex plate 2 is provided with a plurality of reinforcing grooves 22 between the adjacent positioning convex blocks 21, and resin is injected into the reinforcing grooves 22 during processing.

During processing, the positioning lug 21 and the convex plate 2 are integrally formed, the concave plate 1 is provided with a clamping groove 11 matched with the positioning lug 21, then before the concave plate 1 and the convex plate 2 are overlapped, adhesive is coated on the positioning lug 21, then the convex plate 2 and the concave plate 1 are extruded and overlapped together, and then the forming is carried out through gluing or hot melting and other modes.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a wind-powered electricity generation PET core structure for blade which characterized in that: including concave plate (1) and convex plate (2), convex plate (2) are close concave plate (1) one side is provided with positioning convex block (21) of a plurality of parallels, positioning convex block (21) are the rectangle, positioning convex block (21) side is provided with joint edge (211), concave plate (1) is close convex plate (2) one side be provided with positioning convex block (21) complex joint groove (11), joint groove (11) with positioning convex block (21) joint is fixed, when carrying out the joint, little deformation takes place for joint edge (211), so that concave plate (1) with convex plate (2) joint is fixed, concave plate (1) with convex plate (2) adopt the veneer casting die.

2. The PET core material structure for the wind power blade as recited in claim 1, wherein:

the convex plate (2) is provided with a plurality of reinforcing grooves (22) between adjacent positioning convex blocks (21), and resin is injected into the reinforcing grooves (22) during processing.

3. The PET core material structure for the wind power blade as recited in claim 1, wherein:

the concave plate (1) and the convex plate (2) are made of PET materials.

4. The PET core material structure for the wind power blade as claimed in claim 1, wherein:

the thickness of the concave plate (1) is 15-60 mm.

5. The PET core material structure for the wind power blade as claimed in claim 1, wherein:

the thickness of the convex plate (2) is 10-30 mm.