阅读说明：本技术 一种风电叶片分段腹板制作及安装方法 (Manufacturing and mounting method for wind power blade sectional web ) 是由 汤明旭 任根群 李宏磊 刘继群 邢秋影 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种风电叶片分段腹板制作及安装方法,属于风电叶片制作领域,包括如下步骤：步骤A、确认腹板模具制作定位数据与主模定位一致,分段点定位正确；步骤B、腹板铺层制作,分段位置处理；步骤C、腹板灌注成型；步骤D、腹板脱模,外观处理；还包括步骤a、腹板转运并安装至一体工装；步骤b、将腹板随一体工装安装在壳体主梁；步骤c、腹板接缝位置补强；步骤d、待胶粘剂固化完成后,拆除一体工装,腹板安装结束,本发明可解决大型一体灌注叶片腹板转运困难的问题；提高腹板在主梁上安装定位的精准度,可节约由定位偏差产生的维修成本；分段腹板脱模后可分别装在根部、尖部的一体工装,可节约转运空间,使腹板的流转更加快捷。(The invention discloses a method for manufacturing and installing a wind power blade sectional web, which belongs to the field of wind power blade manufacturing and comprises the following steps: step A, confirming that the manufacturing positioning data of the web plate die is consistent with the positioning of the main die, and correctly positioning the segmentation points; b, manufacturing a web plate laying layer, and processing sectional positions; c, web plate pouring molding; d, demolding the web plate and performing appearance treatment; the method comprises the following steps of a, transferring and installing the web plate to an integrated tool; b, mounting the web plate on a main beam of the shell along with an integrated tool; c, reinforcing the joint position of the web plate; d, after the adhesive is cured, removing the integrated tool, and finishing the installation of the web plate, so that the problem of difficult transportation of the large integrally-poured blade web plate can be solved; the accuracy of the installation and the positioning of the web plate on the main beam is improved, and the maintenance cost caused by the positioning deviation can be saved; the integrative frock at root, point portion can be adorned respectively to the back at the segmentation web drawing of patterns, can practice thrift the transportation space, makes the circulation of web more swift.)

1. The utility model provides a wind-powered electricity generation blade segmentation web, includes web mould and web, its characterized in that: the web plate die comprises a core material (10), the upper surface of the core material (10) is wrapped by demolding cloth (11), the lower surface of the core material (10) is paved with outer covering cloth (13), the outer walls of the demolding cloth (11) and the outer covering cloth (13) are paved with inner covering cloth (14), and a thin film (12) with holes is arranged between every two adjacent inner covering cloths (14);

the web includes leading edge root board (21) and trailing edge root web (27), leading edge point web (24) is installed to the rear end of leading edge root board (21), trailing edge point web (25) is installed to the rear end of trailing edge root web (27), just the crossing department of leading edge root board (21) and leading edge point web (24) and trailing edge root web (27) with the crossing department of trailing edge point web (25) all is equipped with web seam (23), leading edge root board (21) with between trailing edge root web (27) the inside wall and leading edge point web (24) with all install in the web interior support (22) between trailing edge point web (25) the inside wall, girder (29) are installed to the lower terminal surface of leading edge root board (21), leading edge point web (24), trailing edge point web (25) and trailing edge root web (27), a limiting block (26) is mounted on the main beam (29), and an adhesive (28) is coated at the intersection of the front edge root plate (21), the front edge tip web plate (24), the rear edge tip web plate (25) and the rear edge root web plate (27) with the main beam (29);

and reinforcing cloth (30) is laid on the inner side and the outer side of the web plate joint (23).

2. The wind turbine blade segment web of claim 1, wherein: the reinforcing cloth (30) is paved at the inner side and the outer side of the web joint (23) in a staggered mode in the middle.

3. The wind turbine blade segment web of claim 1, wherein: six limiting blocks (26) are symmetrically arranged.

4. A manufacturing method of a wind power blade sectional web is characterized by comprising the following steps:

step A, confirming that the manufacturing positioning data of the web plate die is consistent with the positioning of the main die, and the positioning of the segmentation points is correct: after the web plate die is confirmed to be correct, sequentially laying an outer covering cloth (13), a core material (10) and an inner covering cloth (14);

step B, web plate laying layer manufacturing and subsection position processing: cutting off the outer covering cloth (13), the inner covering cloth (14) and the core material (10) along the sectional positions to ensure that the side openings are neat and the vertical surface core material (10) is exposed;

step C, web perfusion molding: the vertical surface core material (10) is wrapped by the demolding cloth (11), and the film (12) with holes is placed, so that the mold can be separated conveniently after demolding;

step D, web demoulding and appearance treatment: paving a web perfusion auxiliary material, performing vacuum perfusion after the vacuum pressure maintaining is qualified, demolding after curing, and polishing the surface of the web perfusion auxiliary material.

5. The method for manufacturing the wind power blade section web plate according to claim 4, wherein the method comprises the following steps: and step A, adding a segmentation position mark on the web mold rice mark.

6. The method for manufacturing the wind power blade section web plate according to claim 4, wherein the method comprises the following steps: and a wrapping process of a demoulding cloth (11) and a film (12) with holes is added at the vertical surface of the web plate subsection.

7. A wind power blade subsection web plate installation method is characterized by comprising the following steps:

step a, transferring and installing a web to an integrated tool: installing a front edge root plate (21) and a rear edge root web plate (27) to a root integrated tool, and installing a front edge tip web plate (24) and a rear edge tip web plate (25) to a tip integrated tool;

step b, mounting the web plate on a shell main beam (29) along with an integrated tool: mounting a web plate inner support (22), and adjusting the verticality of the web plate until the technological requirement is met; a limiting block (26) is arranged on the main beam (29), and after the limiting block (26) is firmly bonded, an adhesive (28) is coated on the web plate installation in-place area in a scraping mode; the web plates at the root part and the tip part are sequentially hung on a main beam (29) by using a travelling crane, the side surfaces of the web plates are tightly attached to a limiting block (26), and the position of the travelling crane is properly adjusted to enable the web plates at two sides to be butted;

step c, reinforcing the seam position of the web plate: filling a small amount of adhesive (28) at the web seam (23); then soaking the reinforcing cloth (30) with resin, and laying in staggered layers in the middle of the inner side and the outer side of the web joint (23) to finish the reinforcement;

and d, after the adhesive (28) is cured, removing the integrated tool, and finishing the installation of the web plate.

8. The wind turbine blade segment web mounting method of claim 7, wherein: root and tip integrated tools are selected and matched for hoisting respectively, and the integrated tools are symmetrically arranged in the width direction.

9. The wind turbine blade segment web mounting method of claim 7, wherein: and adding a reinforcing process at the position of the segmented joint.

10. The wind turbine blade segment web mounting method of claim 7, wherein: the resin is epoxy resin.

Technical Field

The invention relates to the field of wind power blade manufacturing, in particular to a method for manufacturing and installing a wind power blade sectional web.

Background

The blade is an industry with high certainty, large market capacity and clear profit mode in wind power parts, and the epoxy resin is an organic high molecular compound containing two or more than two epoxy groups in molecules, and except for individual ones, the relative molecular mass of the epoxy resin is not high. The molecular structure of the epoxy resin is characterized in that a molecular chain contains active epoxy groups, and the epoxy groups can be positioned at the tail ends, in the middle or in a ring structure. Because the molecular structure contains active epoxy group, they can produce cross-linking reaction with several curing agents to form insoluble and infusible high polymer with three-dimensional network structure.

The wind power blade manufacturing technology is rapidly developed, and each blade manufacturing company forms a set of complete production system through continuous innovation and development. At present, most webs made of wind power blades in China are prefabricated by resin infusion, and after solidification and molding, the web prefabricated part is taken out of a mold by using a demolding tool and is installed into an integrated tool; and in the die assembly stage, the web and the integrated tool are integrally lifted to the main beam of the blade shell to be in place by using a travelling crane, and the installation is completed. The integrally formed web plate hoisting method is only suitable for hoisting under the condition of large transit space, so that a web plate manufacturing and mounting method which is not influenced by the transit space is necessarily developed on the basis of the prior art.

Disclosure of Invention

The invention aims to provide a wind power blade segmented web, the pouring molding quality of the segmented web is the same as that of an integrally-paved web, and the problem that the large integrally-poured blade web is difficult to transport is solved.

The invention also aims to provide a manufacturing method of the wind power blade segmented web, which ensures the mounting and positioning accuracy of the web on a main beam and can save the maintenance cost caused by positioning deviation; the integrative frock at root, point portion can be adorned respectively to the back of segmentation web drawing of patterns, has practiced thrift the transportation space, makes the circulation of web more swift.

The invention further aims to provide a wind power blade subsection web plate installation method.

In order to solve the problems, the invention adopts the following technical scheme:

the wind power blade segmented web plate comprises a web plate mold and a web plate, wherein the web plate mold comprises a core material, the upper surface of the core material is wrapped with demolding cloth, the lower surface of the core material is paved with outer covering cloth, the outer walls of the demolding cloth and the outer covering cloth are paved with inner covering cloth, and a thin film with holes is arranged between every two adjacent inner covering cloths;

the web plate comprises a front edge root plate and a rear edge root web plate, the rear end of the front edge root plate is provided with a front edge tip web plate, the rear end of the rear edge root web plate is provided with a rear edge tip web plate, web seams are arranged at the intersection of the front edge root plate and the front edge tip web plate and the intersection of the rear edge root web plate and the rear edge tip web plate, an inner web support is arranged between the front edge root plate and the inner side wall of the web plate of the rear edge root and between the front edge tip web plate and the inner side wall of the web plate of the rear edge tip, the lower end surfaces of the front edge root plate, the front edge tip web plate, the rear edge tip web plate and the rear edge root web plate are provided with main beams, the main beam is provided with a limiting block, and the intersection positions of the front edge root plate, the front edge tip web plate, the rear edge tip web plate and the rear edge root web plate and the main beam are coated with adhesives;

and reinforcing cloth is laid on the inner side and the outer side of the web joint.

In a preferred embodiment of the present invention, the reinforcing fabric is laid on the inner and outer sides of the web joint.

As a preferable scheme of the invention, six limiting blocks are symmetrically arranged.

A manufacturing method of a wind power blade sectional web comprises the following steps:

step A, confirming that the manufacturing positioning data of the web plate die is consistent with the positioning of the main die, and the positioning of the segmentation points is correct: after the web plate die is confirmed to be correct, sequentially laying outer covering cloth, a core material and inner covering cloth;

step B, web plate laying layer manufacturing and subsection position processing: cutting off the outer covering cloth, the inner covering cloth and the core material along the sectional positions to ensure that the side openings are neat and the core material on the vertical surface is exposed;

step C, web perfusion molding: the vertical surface core material is wrapped by the demolding cloth, and the film with holes is placed, so that the mold can be conveniently separated after demolding;

step D, web demoulding and appearance treatment: paving a web perfusion auxiliary material, performing vacuum perfusion after the vacuum pressure maintaining is qualified, demolding after curing, and polishing the surface of the web perfusion auxiliary material.

In a preferred embodiment of the present invention, step a is to add a segment position mark on the web mold mark.

As a preferable scheme of the invention, a wrapping process of a demoulding cloth and a perforated film is added at the vertical surface position of the web plate subsection.

A wind power blade subsection web mounting method comprises the following steps:

step a, transferring and installing a web to an integrated tool: installing a front edge root plate and a rear edge root web plate to a root integrated tool, and installing a front edge tip web plate and a rear edge tip web plate to a tip integrated tool;

step b, installing the web plate on the main beam of the shell along with the integrated tool: mounting a web plate inner support, and adjusting the verticality of the web plate until the technological requirement is met; installing a limiting block on the main beam, and after the limiting block is firmly bonded, scraping and coating an adhesive on a web plate installation in-place area; the web plates at the root part and the tip part are sequentially hung on the main beam by using a travelling crane, the side surfaces of the web plates are tightly attached to a limiting block, and the position of the travelling crane is properly adjusted to enable the web plates at the two sides to be butted;

step c, reinforcing the seam position of the web plate: filling a small amount of adhesive at the joints of the web plates; then soaking the reinforcing cloth in resin, and laying the reinforcing cloth in staggered layers in the middle of the inner side and the outer side of the web joint to finish the reinforcement;

and d, after the adhesive is cured, removing the integrated tool, and finishing the installation of the web plate.

As a preferred scheme of the invention, root and tip integrated tools are respectively selected and matched for hoisting, and the integrated tools are symmetrically arranged in the width direction.

As a preferable scheme of the invention, a reinforcing process is added at the position of the subsection seam.

Compared with the prior art, the invention has the advantages that:

(1) the sectional web pouring forming quality of the scheme is the same as that of an integrally paved web, and the problem of difficulty in transferring a large integrally poured blade web is solved.

(2) The manufacturing method of the segmented web ensures the accuracy of the installation and the positioning of the web on the main beam, and can save the maintenance cost caused by the positioning deviation.

(3) The integrative frock at root, point portion can be adorned respectively to the segmentation web drawing of patterns back of this scheme, has practiced thrift the transportation space, makes the circulation of web more swift.

(4) The scheme has simple process, easy operation and wide application range, and can be applied to the mass production of different leaf types.

Drawings

FIG. 1 is a schematic view of the position of the web segments of the present invention.

Fig. 2 is a schematic view of the installation of the web in the present invention.

FIG. 3 is a schematic top view of the web seam reinforcement of the present invention.

The reference numbers in the figures illustrate:

10. a core material; 11. demolding the cloth; 12. a film with holes; 13. an outer cover cloth; 14. inner skin cloth; 21. a leading edge boot plate; 22. a web inner support; 23. a web seam; 24. a leading edge tip web; 25. a trailing edge tip web; 26. a limiting block; 27. a trailing edge root web; 28. an adhesive; 29. a main beam; 30. and (4) reinforcing cloth.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-3, a wind turbine blade segmented web comprises a web mold and a web, wherein the web mold comprises a core material 10, the upper surface of the core material 10 is wrapped with a demolding cloth 11, the lower surface of the core material 10 is paved with an outer covering cloth 13, the outer walls of the demolding cloth 11 and the outer covering cloth 13 are paved with inner covering cloth 14, and a thin film 12 with holes is arranged between two adjacent inner covering cloths 14;

the webs comprise a front edge root plate 21 and a rear edge root web 27, a front edge tip web 24 is arranged at the rear end of the front edge root plate 21, a rear edge tip web 25 is arranged at the rear end of the rear edge root web 27, web seams 23 are arranged at the intersection of the front edge root plate 21 and the front edge tip web plate 24 and the intersection of the rear edge root web plate 27 and the rear edge tip web plate 25, an inner web support 22 is arranged between the front edge root plate 21 and the inner side wall of the rear edge root web plate 27 and between the front edge tip web plate 24 and the inner side wall of the rear edge tip web plate 25, main beams 29 are arranged on the lower end surfaces of the front edge root plate 21, the front edge tip web plate 24, the rear edge tip web plate 25 and the rear edge root web plate 27, limiting blocks 26 are arranged on the main beams 29, and adhesive 28 is coated at the intersection of the front edge root plate 21, the front edge tip web plate 24, the rear edge tip web plate 25 and the rear edge root web plate 27 and the main beams 29;

reinforcing cloth 30 is laid on the inner and outer sides of the web joint 23.

Specifically, the reinforcing cloth 30 is laid in staggered layers in the middle inside and outside the web joint 23, and the purpose of reinforcement can be achieved through the arrangement.

Specifically, stopper 26 symmetry is provided with six, can promote the atress intensity effectively through setting up six stoppers 26, promotes spacing purpose.

A manufacturing method of a wind power blade sectional web comprises the following steps:

step A, confirming that the manufacturing positioning data of the web plate die is consistent with the positioning of the main die, and the positioning of the segmentation points is correct: after the web plate die is confirmed to be correct, sequentially laying an outer covering cloth 13, a core material 10 and an inner covering cloth 14;

step B, web plate laying layer manufacturing and subsection position processing: cutting off the outer covering cloth 13, the inner covering cloth 14 and the core material 10 along the sectional positions to ensure that the edge openings are neat and the vertical surface core material 10 is exposed;

step C, web perfusion molding: the vertical surface core material 10 is wrapped by the demoulding cloth 11, and the film 12 with holes is placed, so that the vertical surface core material and the film can be separated conveniently after demoulding;

step D, web demoulding and appearance treatment: paving a web perfusion auxiliary material, performing vacuum perfusion after the vacuum pressure maintaining is qualified, demolding after curing, and polishing the surface of the web perfusion auxiliary material.

Specifically, in the step a, a segment position mark is added to the web mold rice mark, so that the accuracy of the installation of the web on the main beam 29 is ensured, and the repair cost is saved.

Specifically, the wrapping process of the demolding cloth 11 and the film 12 with holes is added at the vertical face of the web subsection, so that the web is easy to separate after demolding, cutting is not needed, and the transfer efficiency is effectively improved.

A wind power blade subsection web mounting method comprises the following steps:

step a, transferring and installing a web to an integrated tool: installing a front edge root plate 21 and a rear edge root web 27 to a root integrated tool, and installing a front edge tip web 24 and a rear edge tip web 25 to a tip integrated tool;

step b, installing the web plate on the shell main beam 29 along with the integrated tool: mounting a web plate inner support 22, and adjusting the verticality of the web plate until the technological requirement is met; a limiting block 26 is arranged on the main beam 29, and after the limiting block 26 is firmly bonded, an adhesive 28 is coated on the web plate installation in-place area in a scraping mode; the web plates at the root part and the tip part are sequentially hung on the main beam 29 by using a travelling crane, the side surfaces of the web plates are tightly attached to the limiting block 26, and the position of the travelling crane is properly adjusted to enable the web plates at the two sides to be butted;

step c, reinforcing the seam position of the web plate: filling a small amount of adhesive 28 at the web seam 23; then soaking the reinforcing cloth 30 in resin, and laying the reinforcing cloth in staggered layers in the middle of the inner side and the outer side of the web joint 23 to finish the reinforcement;

and d, after the adhesive 28 is cured, removing the integrated tool, and finishing the installation of the web plate.

Specifically, root and tip integrated tools are selected respectively to be matched and hoisted, and the integrated tools are symmetrically arranged in the width direction, so that the limitation of a workshop space is avoided, and the condition of waste of transfer time is eliminated; the double-integrated tool configuration can also realize cross operation, fully allocate human resources and maximize the labor efficiency.

Specifically, a reinforcing process is added at the position of a segmented joint, so that the mechanical strength of the web plate in the inner cavity of the blade shell is improved, and the production quality of the blade is ensured.

The working principle is as follows:

s1, confirming that the manufacturing positioning data of the web plate die is consistent with the main die positioning, the positioning of the segmentation points is correct, laying the outer covering cloth 13, the core material 10 and the inner covering cloth 14 in sequence after the rice mark of the web plate die is confirmed to be correct, adding the segmentation position mark on the rice mark of the web plate die, ensuring the accuracy of the installation of the web plate on the main beam 29 and saving the repair cost;

s2, web plate laying layer manufacturing, subsection position processing, and cutting off the outer covering cloth 13, the inner covering cloth 14 and the core material 10 along the subsection position to ensure that the edge is neat and the facade core material 10 is exposed;

s3, web plate pouring molding, namely, demolding cloth 11 is used for wrapping the vertical surface core material 10, and a porous film 12 is placed, so that the vertical surface core material is conveniently separated after demolding, cutting is not needed, and the transfer efficiency is effectively improved;

s4, web demoulding, appearance treatment, web perfusion auxiliary material laying, vacuum perfusion after vacuum pressure maintaining is qualified, demoulding after solidification, and polishing treatment is carried out on the surface of the web;

s5, transferring and installing the manufactured web to an integrated tool, installing the front edge root plate 21 and the rear edge root web 27 to the root integrated tool, installing the front edge tip web 24 and the rear edge tip web 25 to the tip integrated tool, respectively selecting the root and tip integrated tools to be matched and hoisted, and symmetrically arranging the integrated tools in the width direction without being limited by a workshop space, thereby eliminating the condition of transferring time waste; the double-integrated tool configuration can also realize cross operation, fully allocate human resources and maximize the labor efficiency;

s6, mounting the web plate on the shell main beam 29 along with an integrated tool, mounting the web plate inner support 22, and adjusting the verticality of the web plate until the technological requirements are met; a limiting block 26 is arranged on the main beam 29, and after the limiting block 26 is firmly bonded, an adhesive 28 is coated on the web plate installation in-place area in a scraping mode; the web plates at the root part and the tip part are sequentially hung on the main beam 29 by using a travelling crane, the side surfaces of the web plates are tightly attached to the limiting block 26, and the position of the travelling crane is properly adjusted to enable the web plates at the two sides to be butted;

s7, reinforcing the positions of the web seams, and filling a small amount of adhesive 28 in the positions of the web seams 23; then, the reinforcing cloth 30 is soaked with resin, the reinforcing cloth is paved in a staggered manner in the middle of the inner side and the outer side of the web joint 23 to finish the reinforcement, and a reinforcing process is added at the position of the segmented joint to improve the mechanical strength of the web in the inner cavity of the blade shell, so that the production quality of the blade is ensured;

s8, after the adhesive 28 is cured, the integrated tool is removed, and the installation of the web plate is finished.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.