CN212708097U

CN212708097U - Positioning tool and wind power blade

Info

Publication number: CN212708097U
Application number: CN202020708307.8U
Authority: CN
Inventors: 赵立岩; 项套成; 许有木; 刘妍
Original assignee: Sinomatech Wind Power Blade Co Ltd
Current assignee: Sinomatech Wind Power Blade Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-03-16
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a location frock and wind-powered electricity generation blade, location frock are used for connecting web and blade shell, and this location frock includes: a first member including a projection extending in a direction away from the web; the second component comprises a first connecting part and a second connecting part which are arranged at a preset angle, the first connecting part is fixedly connected with the blade shell, and the second connecting part penetrates through an accommodating space formed by the convex part and the web. The positioning tool can prevent the web from locally inclining along the chord direction of the wind power blade in the using process, and the shear strength of the web is improved.

Description

Positioning tool and wind power blade

Technical Field

The utility model relates to a wind-powered electricity generation blade technical field especially relates to a location frock and wind-powered electricity generation blade for connecting web and blade shell.

Background

The wind power blade is used as an important component for capturing wind energy of the wind generating set, and the design and production of the wind generating set determine the performance and the generating power of the wind generating set. In order to increase the buckling resistance of the wind turbine blade, a web is usually provided in the region of the wind turbine blade close to the trailing edge. Because the installation position space of web is limited, the upper flange and the lower flange of web are unilateral generally, lead to the web and the half casing of windward side and the half casing of leeward side not enough adhesion, the web part easily takes place to incline along the chord direction of wind-powered electricity generation blade in the use, influences the shaping quality of wind-powered electricity generation blade.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a location frock and wind-powered electricity generation blade, this location frock can prevent that the web from following the chord of wind-powered electricity generation blade in the use to local slope.

Therefore, the utility model provides a location frock for connecting web and blade shell, the location frock includes: a first member including a projection extending in a direction away from the web; and the second component comprises a first connecting part and a second connecting part which are arranged at a preset angle, the first connecting part is fixedly connected with the blade shell, and the second connecting part penetrates through an accommodating space formed by the convex part and the web.

According to an aspect of the present invention, the first member further includes extension portions connected to both ends of the convex portion, respectively, and the first member is fixedly connected to the web through the extension portions.

According to an aspect of the present invention, the adhesive is coated between the extension and the web.

According to an aspect of the utility model, the coating has the bonding glue between first connecting portion and the blade casing.

According to an aspect of the present invention, the value range of the predetermined angle between the first connecting portion and the second connecting portion is 60 ° to 90 °.

According to an aspect of the present invention, the width dimension of the second connecting portion is less than or equal to the width dimension of the convex portion.

According to the utility model discloses an aspect, clearance t between second connecting portion and the web is 0 ~ 1 mm.

Additionally, the utility model also provides a wind-powered electricity generation blade, include: a blade shell; the web is arranged at the position, close to the rear edge, of the blade shell; the web comprises a flange which is arranged along the height direction of the web and is arranged along one side of the chord direction, and the flange is connected with the blade shell in an adhesion manner; as before location frock, location frock sets up in the one side that deviates from the flange of web for connect web and blade shell.

The utility model provides a pair of location frock and wind-powered electricity generation blade is through setting up the first component that has the convex part on the web near blade shell trailing edge position to be connected web and blade shell through the second component, can prevent that the web from following the chord of wind-powered electricity generation blade in the use to local slope, improve the shear strength of web, and then improve the anti bucking ability of wind-powered electricity generation blade.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Fig. 1 is a schematic partial structural diagram of a wind turbine blade according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a schematic structural view of a first member of the positioning tool of FIG. 2;

fig. 4 is a schematic structural diagram of a second member of the positioning tool in fig. 2.

Description of reference numerals:

a W-web; s-a blade shell; f-flange;

1-a first member; 11-a convex part; 12-an extension;

2-a second member; 21-a first connection; 22-second connection.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the drawings and the following description, well-known structures and techniques, at least in part, are not shown in order to avoid unnecessarily obscuring the present invention; also, the size of the region structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

For better understanding of the present invention, the following description is made in conjunction with fig. 1 to 4 for a positioning tool and a wind turbine blade provided by the embodiments of the present invention.

Fig. 1 is a schematic partial structural diagram of a wind turbine blade according to an embodiment of the present invention; fig. 2 is a sectional view taken along a-a direction in fig. 1.

Referring to fig. 1 and fig. 2 together, an embodiment of the present invention provides a wind turbine blade, including: blade shell S, web W and location frock.

The web W is arranged at a position, close to the trailing edge, of the blade shell S, the web W comprises a flange F which is arranged along the height direction of the web W and is arranged along one side of the chord direction, and the flange F is connected with the blade shell S in an adhering mode.

The positioning tool is arranged on one side, deviating from the flange F, of the web W and used for connecting the web W and the blade shell S. The web W is prepared by a vacuum infusion molding process and extends along the axial direction of the blade shell S. Optionally, a plurality of positioning tools are arranged at intervals along the axial direction of the web W.

One side of the web, which deviates from the flange F, of the positioning tool is connected with the blade shell S, so that the connection strength between the web W and the blade shell S is improved, and the situation that the web is inclined easily along the chord direction of the wind power blade in the using process to influence the anti-shearing capacity of the wind power blade can be prevented.

The following drawings describe the specific structure of the positioning tool in detail.

As shown in fig. 2, the positioning tool includes: a first member 1 and a second member 2.

The first member 1 includes a projection 11 extending in a direction away from the web W.

Alternatively, the first member 1 is a plate-shaped member, and the material of the first member is a metal member, such as aluminum or aluminum alloy, or a non-metal member, such as a plastic member, such as nylon, which is resistant to high temperature.

Alternatively, the first member 1 is injection-molded using a multi-layer biaxial cloth, and may be injected with resin or hand lay-up resin.

The second member 2 includes a first connection portion 21 and a second connection portion 22 arranged at a predetermined angle, the first connection portion 21 is fixedly connected with the blade shell S, and the second connection portion 22 passes through the accommodating space formed by the protrusion 11 and the web W.

Alternatively, the second member 2 is a plate-shaped member, and the material of the second member is a metal member, such as aluminum or aluminum alloy, or a non-metal member, such as a plastic member, such as nylon, which is resistant to high temperature.

The first member 2 is formed by injection molding of a multi-layer biaxial cloth, and may be impregnated with resin or hand lay-up resin.

The embodiment of the utility model provides a pair of location frock through set up the first component 1 that has convex part 11 on the web W that is close to blade shell S trailing edge position to be connected web W and blade shell S through second component 2, can prevent that web W from improving web W ' S anti shear strength along wind-powered electricity generation blade ' S chord to local slope in the use, and then improve wind-powered electricity generation blade ' S anti bucking ability.

Fig. 3 is a schematic structural diagram of a first member of the positioning tool in fig. 2.

As shown in fig. 3, the first member 1 further includes extending portions 12 connected to both ends of the protruding portion 11, respectively, and the first member 1 is fixedly connected to a web W through the extending portions 12. Alternatively, the extension 12 is disposed at a predetermined angle with respect to the protrusion 11, for example, the predetermined angle is 135 °.

After the web W and the blade shell S are assembled, the first member 1 and the web W are fixedly connected. The first member 1 is made separately, and optionally, an adhesive J is coated between the extension portion 12 and the web W, or the extension portion 12 of the first member 1 and the web W are fixedly connected by a rivet. Alternatively, the bonding glue J may be a two-component adhesive.

As shown in fig. 4, the second member 2 includes a first connecting portion 21 and a second connecting portion 22 arranged at a predetermined angle, and optionally, the predetermined angle is 60 to 90 °. The first connecting portion 21 and the blade shell S are coated with adhesive J, or the first connecting portion 21 and the blade shell S are fixedly connected through rivets. Alternatively, the bonding glue J may be a two-component adhesive.

Further, the second connecting portion 22 is provided with an elastic member (not shown) on a side facing the convex portion 11, and the elastic member is in contact with the convex portion 11.

Optionally, the elastic member 33 is made of flexible glass fiber reinforced plastic, silicone rubber or rubber, so as to prevent the parts of the positioning tool from being damaged due to excessive friction between the second connecting portion 22 and the protruding portion 11.

Further, the width dimension of the second connection portion 22 is smaller than or equal to the width dimension of the convex portion 11. As shown in fig. 2, the second connecting portion 22 can move back and forth along the width direction of the first member 1, so as to provide a moving margin between the web W and the blade shell S, which can ensure that the web W and the blade shell S are not damaged by pulling the second member 2 and do not have large offset.

Specifically, the gap t between the second connecting portion 22 and the web W is 0 to 1 mm. The gap t can ensure that the maximum offset between the second component 2 and the web W is 1mm, and the perpendicularity of the web W is improved.

Therefore, the embodiment of the utility model provides a location frock can be after accomplishing web W and blade shell S equipment, fixes the first component 1 of this location frock to the one side that deviates from flange F of web W again, passes first component 1 convex part 11 with the second connecting portion 22 of second component 2, with first connecting portion 21 and blade shell S fixed connection. The gap between the second connecting part 22 and the web W is small, so that the web W can be ensured to move in the width direction of the convex part 11, the maximum offset between the second member 2 and the web W is 1mm, and the perpendicularity of the web W is improved. Meanwhile, the connection strength between the web W and the blade shell S is improved, the web is prevented from being locally inclined greatly along the chord direction of the wind power blade in the use process of the blade, and the anti-shearing structural strength of the wind power blade is improved.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a location frock for connecting web (W) and blade shell (S), its characterized in that, the location frock includes:

a first member (1) comprising a protrusion (11) extending in a direction away from the web (W);

the second component (2) comprises a first connecting part (21) and a second connecting part (22) which are arranged at a preset angle, the first connecting part (21) is fixedly connected with the blade shell (S), and the second connecting part (22) penetrates through an accommodating space formed by the convex part (11) and the web (W).

2. The positioning tool according to claim 1, characterized in that the first member (1) further comprises extending portions (12) connected to two ends of the protruding portion (11), and the first member (1) is fixedly connected with the web (W) through the extending portions (12).

3. The positioning tooling of claim 2, wherein an adhesive is applied between the extension (12) and the web (W).

4. The positioning tool according to claim 1, characterized in that an adhesive glue is coated between the first connecting portion and the blade shell (S).

5. The positioning tool according to claim 1, characterized in that the predetermined angle between the first connecting portion (21) and the second connecting portion (22) ranges from 60 ° to 90 °.

6. The positioning tool according to claim 1, characterized in that the width dimension of the second connecting part (22) is smaller than or equal to the width dimension of the convex part (11).

7. The positioning tool according to claim 6, wherein a gap t between the second connecting portion (22) and the web (W) is 0-1 mm.

8. A wind turbine blade, comprising:

a blade shell (S);

a web (W) provided at a position of the blade shell (S) near the trailing edge; the web (W) comprises a flange (F) which is arranged along the height direction of the web and is arranged along one side of the chord direction, and the flange (F) is connected with the blade shell (S) in an adhesion manner;

the positioning tool according to any one of claims 1 to 7, arranged on a side of the web (W) facing away from the flange (F) for connecting the web (W) to the blade shell (S).