CN115898754B - Blade module and forming method thereof - Google Patents
Blade module and forming method thereof Download PDFInfo
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- CN115898754B CN115898754B CN202310234794.7A CN202310234794A CN115898754B CN 115898754 B CN115898754 B CN 115898754B CN 202310234794 A CN202310234794 A CN 202310234794A CN 115898754 B CN115898754 B CN 115898754B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to a blade module and a forming method thereof, comprising a front edge module, a middle module and a rear edge module which are arranged along the chord length direction of the blade, wherein the middle module is respectively adhered with the front edge module and the rear edge module, the middle module comprises a plurality of ribs and middle shells which are oppositely coated on two sides of the ribs, the ribs are arranged along the length direction of the blade, and reinforcing ribs are arranged at the joint of the ribs and the middle shells and are arranged along the length direction of the blade; the rib is adhered to the intermediate shell, the leading edge web and the trailing edge web respectively by adhesive means at the circumferential edges thereof. The front edge shell and the rear edge shell adopt a sandwich structure, the middle shell is arranged into a skin structure, and a plurality of layers of fabrics are adopted to be added with resin to pour out glass fiber reinforced plastic; get rid of the core material structure of casing in the middle module to adopt a plurality of ribs to cooperate a plurality of strengthening ribs to constitute the inside bearing structure of middle module, reduce the whole quality of blade module, can effectively guarantee the bearing capacity of the whole atress structure of blade module simultaneously.
Description
Technical Field
The invention relates to the technical field of wind power blades, in particular to a blade module and a forming method thereof.
Background
Wind energy is used as a renewable energy source form, has the advantages of low development cost, mature technology, wide distribution and the like, and is an important direction of renewable energy source development. In order to fully utilize wind energy resources, improvement of aerodynamic profile of a fan blade and increase of blade size are important means for improving power generation of a wind turbine, so that the wind turbine gradually increases in size and is a trend of wind power technology development. However, the regions with abundant wind resources are often remote and rare regions with poor traffic conditions, so that the large-scale fans are limited by the transportation conditions.
At present, wind power blades are generally manufactured by adopting fiber reinforced polymer matrix composite materials, the production process of the composite material blades has severe requirements on environment and technology, and the composite materials used in ultra-long blades are more sensitive to production conditions, so that the quality of the blades is inconvenient to control. In summary, when the blade length reaches a certain limit, the sectional blade structure is adopted, and the sectional transportation and the field assembly are effective methods for solving the problem of large-scale wind turbine production in the existing factory. However, as the blade size increases, the excessively heavy blade structure is disadvantageous in maintaining operational stability during operation of the wind turbine, and thus it is necessary to ensure stability of the overall blade structure performance while reducing the weight and cost of the blade.
Disclosure of Invention
The invention provides a blade module and a forming method thereof, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the blade module comprises a front edge module, a middle module and a rear edge module which are arranged along the chord length direction of the blade, wherein the middle module is adhered with the front edge module and the rear edge module respectively;
the front edge module and the rear edge module are all arranged in a penetrating mode along the length direction of the blade, wherein the front edge module comprises a front edge shell and a front edge web plate which are arranged along the length direction of the blade, and the rear edge module comprises a rear edge shell and a rear edge web plate which are arranged along the length direction of the blade;
the middle module comprises ribs and middle shells oppositely coated on two sides of the ribs, a plurality of the ribs are arranged along the length direction of the blade, reinforcing ribs are arranged at the joints of the ribs and the middle shells, and the reinforcing ribs are arranged along the length direction of the blade;
and the circumferential edge of the wing rib is provided with an adhesive piece, and the wing rib is respectively adhered with the middle shell, the front edge web and the rear edge web through the adhesive piece.
Further, the bonding piece comprises a first bonding plate, a second bonding plate, a third bonding plate and a fourth bonding plate which are respectively arranged around the wing rib;
the first bonding plate and the third bonding plate are respectively adhered to the middle shell at two sides, the second bonding plate and the fourth bonding plate are respectively adhered to the front edge web plate and the rear edge web plate, and the bonding pieces are all bent towards the same side of the wing rib.
Further, the second bonding plate and the fourth bonding plate are respectively arranged in the middle of the edges of the two sides of the wing rib, and a first lap joint groove is formed at the edges of the wing rib on the two sides of the second bonding plate;
the edges of the two sides of the width of the middle shell are bent to form a first folded edge, and the first folded edge is buckled with the first lap joint groove.
Further, two first folded edges positioned on two sides of the same width of the middle shell are respectively abutted against one end of the second bonding plate and one end of the fourth bonding plate;
the second bonding plate is matched with the two first folds at the two sides of the second bonding plate to be bonded and fixed with the front edge module, and the fourth bonding plate is matched with the two first folds at the two sides of the fourth bonding plate to be bonded and fixed with the rear edge module.
Further, the first bonding plate and the third bonding plate are respectively provided with a plurality of ribs at intervals at two side edges, a first limit groove is formed between every two adjacent first bonding plates, a second limit groove is formed between every two adjacent third bonding plates, and the reinforcing ribs are respectively arranged in the first limit groove and the second limit groove.
Further, the reinforcing rib comprises a limiting part and second folded edges arranged on two sides of the limiting part, and the limiting part is arranged to protrude towards one side of the second folded edges;
the first limit groove and the second limit groove comprise clamping grooves and second lap joint grooves on two sides of the clamping grooves, the clamping grooves are concavely arranged relative to the second lap joint grooves, the limit parts are clamped with the clamping grooves, and the second folding edges are buckled with the second lap joint grooves.
Further, third folded edges are arranged on two sides of the width of the front edge web, fourth folded edges are arranged on two sides of the width of the rear edge web, and the third folded edges and the fourth folded edges are folded towards one side far away from the middle module;
the rear edge shell comprises a first shell and a second shell which are positioned on the windward side and the leeward side of the blade, wherein one long side of the first shell is mutually adhered, the inner wall of the long side of the other long side is respectively adhered with two fourth folded sides, and the inner walls of the long sides of the opening of the front edge shell are respectively adhered with two third folded sides.
A forming method of a blade module is applied to the blade module and comprises the following steps:
respectively integrally forming a front edge shell, a rear edge shell, a front edge web and a rear edge web, and respectively bonding the front edge shell, the rear edge shell, the front edge web and the rear edge web by adopting structural adhesive to form a front edge module and a rear edge module;
the method comprises the steps of pre-manufacturing a middle shell, a plurality of ribs and a plurality of reinforcing ribs, respectively forming a first limit groove and a second limit groove on two sides of each rib, and assembling the ribs, the reinforcing ribs and the middle shell to form a middle module;
and the front edge module, the middle module and the rear edge module are sequentially adhered and fixed along the chord length direction of the blade by adopting structural adhesive to form the blade module, and the structural adhesive is coated on the outer sides of the first folding edges on the two sides of the middle shell and the outer sides of the second bonding plates and the fourth bonding plates on the two sides of the wing rib.
Further, after the third folded edges on two sides of the front edge web plate are coated with the adhesive layer towards one side of the front edge shell, the adhesive layer is adhered to the inner walls of the long edges on two sides of the front edge shell, and the fourth folded edges on two sides of the rear edge web plate are coated with the adhesive layer towards one side of the rear edge shell and then adhered to the inner walls of the long edges on two sides of the rear edge shell;
a side plate surface of the front edge web, which is far away from the third folded edge, is flush with the long side end surfaces of the two sides of the front edge shell, and a side plate surface of the rear edge web, which is far away from the fourth folded edge, is flush with the long side end surfaces of the two sides of the rear edge shell.
Further, in the prefabrication process of the wing rib, the edge of the outer layer fabric on one side of the wing rib is turned towards the other side of the wing rib to form an adhesive piece;
the outer layer fabric is folded, a plurality of openings are cut at intervals at the edges of the outer layer fabric before the outer layer fabric is folded, the edges of the outer layer fabric are folded, a first lap joint groove and a second lap joint groove are formed by matching with rib ring sides, and a clamping groove is formed in the middle of the second lap joint groove.
The beneficial effects of the invention are as follows:
in the application, the front edge shell and the rear edge shell adopt sandwich structures, core materials such as a middle clamp PET, PVC, BALSA and the like, the middle shell is arranged to be a skin structure, and glass fiber reinforced plastic is poured by adopting a plurality of layers of fabrics and adding resin; get rid of the core material structure of casing in the middle module to adopt a plurality of ribs to cooperate a plurality of strengthening ribs to constitute the inside bearing structure of middle module, reduce the whole quality of blade module, can effectively guarantee the bearing capacity of the whole atress structure of blade module simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a blade module according to an embodiment of the present invention;
FIG. 2 is a schematic view of an exploded view of a blade module according to an embodiment of the present invention;
FIG. 3 is a schematic view of a rib structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an adhesion structure between a rib and a stiffener according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an intermediate module according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of bonding of a leading edge module to a trailing edge module in accordance with an embodiment of the present invention;
FIG. 7 is a schematic illustration of bonding an intermediate module to a leading edge module and a trailing edge module in accordance with an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a blade module according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a partial structure at A in FIG. 8;
fig. 10 is an enlarged view of a partial structure at B in fig. 8.
Reference numerals: 1. a leading edge module; 11. a leading edge housing; 12. a leading edge web; 121. a third flanging; 2. an intermediate module; 21. ribs; 211. an adhesive member; 211a, a first adhesive plate; 211b, a second adhesive plate; 211c, a third adhesive sheet; 211d, a fourth adhesive sheet; 22. a first overlap groove; 23. a first limit groove; 231. a clamping groove; 232. a second overlap groove; 24. the second limit groove; 25. an intermediate housing; 251. a first hem; 26. reinforcing ribs; 261. a limit part; 262. a second flanging; 3. a trailing edge module; 31. a trailing edge housing; 311. a first housing; 312. a second housing; 32. a trailing edge web; 321. and a fourth flanging.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
A blade module as shown in fig. 1 to 10, comprising a leading edge module 1, a middle module 2 and a trailing edge module 3 arranged along the chord length direction of the blade, wherein the middle module 2 is adhered to the leading edge module 1 and the trailing edge module 3 respectively; the front edge module 1 and the rear edge module 3 are all arranged in a penetrating manner along the length direction of the blade, wherein the front edge module 1 comprises a front edge shell 11 and a front edge web 12 which are arranged along the length direction of the blade, and the rear edge module 3 comprises a rear edge shell 31 and a rear edge web 32 which are arranged along the length direction of the blade; the middle module 2 comprises ribs 21 and middle shells 25 which are oppositely coated on two sides of the ribs 21, a plurality of ribs 21 are arranged along the length direction of the blade, reinforcing ribs 26 are arranged at the joints of the ribs 21 and the middle shells 25, and the reinforcing ribs 26 are arranged along the length direction of the blade; at the circumferential edges of the ribs 21, adhesive elements 211 are provided, by means of which adhesive elements 211 the ribs 21 are adhered to the intermediate shell 25, the leading edge web 12 and the trailing edge web 32, respectively.
In the application, the leading edge shell 11 and the trailing edge shell 31 adopt sandwich structures, core materials such as a middle clamp PET, PVC, BALSA and the like, the middle shell 25 is arranged as a skin structure, and glass fiber reinforced plastics are poured out by adopting a plurality of layers of fabrics and adding resin; the core material structure of the shell in the middle module 2 is removed, the inner supporting structure of the middle module 2 is formed by adopting the plurality of ribs 21 and the plurality of reinforcing ribs 26, the overall quality of the blade module is reduced, and meanwhile, the bearing capacity of the overall stress structure of the blade module can be effectively ensured.
Further, as shown in fig. 2 and 3, the adhesive member 211 includes a first adhesive plate 211a, a second adhesive plate 211b, a third adhesive plate 211c, and a fourth adhesive plate 211d, which are respectively provided around the rib 21; the first bonding plate 211a and the third bonding plate 211c are respectively adhered to the middle shells 25 on both sides, the second bonding plate 211b and the fourth bonding plate 211d are respectively adhered to the front edge web 12 and the rear edge web 32, and the bonding pieces 211 are respectively bent towards the same side of the rib 21.
The ribs 21 are adhered and fixed with the middle shell 25 on the upper side and the lower side and the front edge module 1 and the rear edge module 3 on the left side and the right side through the structural adhesive coated on the adhesive piece 211, wherein the ribs 21 are adhered with the front edge web 12 and the rear edge web 32 respectively through the second adhesive plate 211b and the fourth adhesive plate 211d on the left side and the right side, and the middle module 2 is adhered and fixed with the front edge module 1 and the rear edge module 3 respectively.
The adhesive piece 211 can enhance the adhesion area between the rib 21 and the middle shell 25 and between the front edge web 12 and the rear edge web 32, improve the adhesive strength and enhance the circumferential bearing capacity; the intermediate module 2 serves as the main bearing part in the blade module, and provides the axial strength of the blade module through a plurality of reinforcing ribs 26 arranged along the length direction of the blade, so that the blade module is prevented from being broken by blowing bending in the use process.
As a preferred embodiment of the structure of the middle module 2 of the present application, referring specifically to fig. 5 and 7, the second bonding plate 211b and the fourth bonding plate 211d are respectively disposed at the middle positions of the edges of the both sides of the rib 21, and the first lap joint grooves 22 are formed at the edges of the rib 21 on both sides thereof; first folded edges 251 are formed at the edges of both sides of the width of the middle housing 25 in a bending manner, and the first folded edges 251 are buckled with the first overlapping grooves 22.
The middle shell 25 is oppositely coated on the upper side and the lower side of the rib 21, the inner wall of the middle shell 25 is fixedly adhered to a plurality of first bonding plates 211a and a plurality of third bonding plates 211c on the upper side and the lower side of a plurality of ribs 21, a plurality of ribs 21 are fixedly connected while a plurality of reinforcing ribs 26 support the middle shell 25, the accuracy of the bonding positions in the bonding process of the ribs 21, the reinforcing ribs 26 and the middle shell 25 is ensured, and the stability of the structure of the middle module 2 after bonding is completed is ensured.
In the above embodiment, the two first flanges 251 on both sides of the width of the same intermediate case 25 are respectively abutted against one ends of the second bonding plate 211b and the fourth bonding plate 211d; the second bonding plate 211b is bonded and fixed to the front edge module 1 with the two first edges 251 on both sides thereof, and the fourth bonding plate 211d is bonded and fixed to the rear edge module 3 with the two first edges 251 on both sides thereof.
In the adhesion structure between the middle module 2 and the front edge module 1 and the rear edge module 3 at two sides thereof, adhesion between the middle module 2 and the front edge module 1 and the rear edge module 3 is realized not only by the adhesive piece 211 which is arranged in the circumferential direction of the wing ribs 21, and a layer of structural adhesive is coated on the outer sides of the first folded edges 251 at two sides of the middle shell 25 along the length direction of the blade, so that adhesion between the middle module 2 and the front edge module 1 and the rear edge module 3 is realized.
As shown in fig. 7 to 10, the structural glue applied to the first bead 251 around the intermediate module 2 adheres not only to the edge portions of the webs in the leading edge module 1 or the trailing edge module 3, but also to the end faces of the leading edge shell 11 and the trailing edge shell 31 facing the intermediate module 2. Further enhancing the adhesion strength of the middle module 2 with the front edge module 1 and the rear edge module 3 on both sides, and preventing separation among the front edge module 1, the middle module 2 and the rear edge module 3.
As a preferred embodiment of the structure of the middle module 2 of the present application, as shown in fig. 3 and 4, the first bonding plates 211a and the third bonding plates 211c are respectively provided with a plurality of first limit grooves 23 between two adjacent first bonding plates 211a and second limit grooves 24 between two adjacent third bonding plates 211c at intervals at both side edges of the rib 21, and the reinforcing ribs 26 are respectively provided in the first limit grooves 23 and the second limit grooves 24.
Further, the reinforcing rib 26 includes a limiting portion 261 and second folded edges 262 disposed at both sides thereof, and the limiting portion 261 protrudes toward one side of the second folded edges 262; the first limiting groove 23 and the second limiting groove 24 both comprise a clamping groove 231 and second lap joint grooves 232 on two sides of the clamping groove 231, the clamping groove 231 is concavely arranged relative to the second lap joint grooves 232, the limiting part 261 is clamped with the clamping groove 231, and the second folded edges 262 are buckled with the second lap joint grooves 232.
In a specific implementation process, the reinforcing rib 26 may be a T-shaped rib or a cap-shaped rib in the application, and the limit part 261 of the reinforcing rib 26 is clamped with the clamping groove 231 at the edge of the rib 21, so as to ensure the assembly stability of the reinforcing rib 26 and the rib 21; meanwhile, the second flange 262 of the reinforcing rib 26 is buckled with the second overlap groove 232, so that the edge of the rib 21 cannot be protruded after the reinforcing rib 26 and the rib 21 are assembled, the structural strength of the middle module 2 is enhanced, and the stability of the bonding structure is not affected.
In this embodiment, the third folded edges 121 are disposed on both sides of the width of the front edge web 12, the fourth folded edges 321 are disposed on both sides of the width of the rear edge web 32, and the third folded edges 121 and the fourth folded edges 321 are folded towards the side far away from the middle module 2; the trailing edge housing 31 comprises a first housing 311 and a second housing 312 positioned on the windward side and the leeward side of the blade, wherein one long side of the first housing 311 and one long side of the second housing 312 are mutually adhered, the inner wall of the other long side is respectively adhered to the two fourth folded edges 321, and the inner walls of the two long sides at the opening of the leading edge housing 11 are respectively adhered to the two third folded edges 121.
The front edge web 12 is adhered to the inner wall of the front edge shell 11 through the third folded edges 121 on two sides of the front edge web, the rear edge web 32 is adhered to the inner wall of the rear edge shell 31 through the fourth folded edges 321 on two sides of the rear edge web, the webs are respectively arranged on the opening sides of the two shells and do not protrude out of the end faces of the two shells, the rib 21 and the web are connected, and meanwhile, the adhesion between the middle module 2 and the end faces of the front edge shell 11 and the rear edge shell 31 is realized, and the adhesion stability between the modules is further ensured.
As shown in fig. 4 to 7, the present invention further provides a method for forming a blade module, including the steps of:
respectively integrally molding the front edge shell 11, the rear edge shell 31, the front edge web 12 and the rear edge web 32, and respectively bonding the front edge shell 11, the rear edge shell 31, the front edge web 12 and the rear edge web 32 by adopting structural adhesive to form a front edge module 1 and a rear edge module 3;
the middle shell 25, the ribs 21 and the reinforcing ribs 26 are prefabricated, a first limit groove 23 and a second limit groove 24 are respectively formed in two sides of the ribs 21, and the ribs 21, the reinforcing ribs 26 and the middle shell 25 are assembled to form the middle module 2;
the leading edge module 1, the middle module 2 and the trailing edge module 3 are sequentially adhered and fixed along the chord length direction of the blade by adopting structural adhesive to form the blade module, and the structural adhesive is coated on the outer sides of the first folding edges 251 on the two sides of the middle shell 25 and the outer sides of the second bonding plates 211b and the fourth bonding plates 211d on the two sides of the wing rib 21.
The third folded edges 121 on the two sides of the front edge web 12 are adhered to the inner walls of the two long edges of the front edge shell 11 after being coated with adhesive layers on the side facing the front edge shell 11, and the fourth folded edges 321 on the two sides of the rear edge web 32 are adhered to the inner walls of the two long edges of the rear edge shell 31 after being coated with adhesive layers on the side facing the rear edge shell 31;
the side surface of the front edge web 12 far from the third folded edge 121 is flush with the long side end surfaces of the two sides of the front edge shell 11, and the side surface of the rear edge web 32 far from the fourth folded edge 321 is flush with the long side end surfaces of the two sides of the rear edge shell 31.
During the prefabrication process of the rib 21, the edge of the outer layer fabric on one side of the rib 21 is turned towards the other side of the rib 21 to form an adhesive piece 211;
wherein, a plurality of openings are cut at intervals at the edge of the outer layer fabric before the outer layer fabric is folded, the edge of the outer layer fabric is folded, a first lap joint groove 22 and a second lap joint groove 232 are formed by matching with the annular side of the rib 21, and a clamping groove 231 is formed at the middle position of the second lap joint groove 232.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The blade module is characterized by comprising a front edge module, a middle module and a rear edge module which are arranged along the chord length direction of the blade, wherein the middle module is adhered with the front edge module and the rear edge module respectively;
the front edge module and the rear edge module are all arranged in a penetrating mode along the length direction of the blade, wherein the front edge module comprises a front edge shell and a front edge web plate which are arranged along the length direction of the blade, and the rear edge module comprises a rear edge shell and a rear edge web plate which are arranged along the length direction of the blade;
the middle module comprises ribs and middle shells oppositely coated on two sides of the ribs, a plurality of the ribs are arranged along the length direction of the blade, reinforcing ribs are arranged at the joints of the ribs and the middle shells, and the reinforcing ribs are arranged along the length direction of the blade;
an adhesive piece is arranged at the circumferential edge of the wing rib, and the wing rib is adhered with the middle shell, the front edge web and the rear edge web respectively through the adhesive piece;
the bonding piece comprises a first bonding plate, a second bonding plate, a third bonding plate and a fourth bonding plate which are respectively arranged around the wing rib;
the first bonding plate and the third bonding plate are respectively adhered to the middle shell at two sides, the second bonding plate and the fourth bonding plate are respectively adhered to the front edge web plate and the rear edge web plate, and the bonding pieces are bent towards the same side of the wing rib;
the second bonding plate and the fourth bonding plate are respectively arranged in the middle of the edges of the two sides of the wing rib, and a first lap joint groove is formed at the edges of the wing rib on the two sides of the second bonding plate;
the edges of the two sides of the width of the middle shell are bent to form a first folded edge, and the first folded edge is buckled with the first lap joint groove.
2. The blade module according to claim 1, wherein two of the first folded edges located on both sides of the same intermediate housing width are respectively abutted against one ends of the second adhesive sheet and the fourth adhesive sheet;
the second bonding plate is matched with the two first folds at the two sides of the second bonding plate to be bonded and fixed with the front edge module, and the fourth bonding plate is matched with the two first folds at the two sides of the fourth bonding plate to be bonded and fixed with the rear edge module.
3. The blade module according to claim 1, wherein the first bonding plates and the third bonding plates are respectively provided with a plurality of first limit grooves at intervals at two side edges of the wing rib, a first limit groove is arranged between two adjacent first bonding plates, a second limit groove is arranged between two adjacent third bonding plates, and the reinforcing ribs are respectively arranged in the first limit grooves and the second limit grooves.
4. A blade module according to claim 3, wherein the reinforcing rib comprises a limit portion and second folded edges arranged on both sides thereof, the limit portion protruding toward one side of the second folded edges;
the first limit groove and the second limit groove comprise clamping grooves and second lap joint grooves on two sides of the clamping grooves, the clamping grooves are concavely arranged relative to the second lap joint grooves, the limit parts are clamped with the clamping grooves, and the second folding edges are buckled with the second lap joint grooves.
5. The blade module according to claim 1, wherein the leading edge web is provided with third folds on both sides of its width and the trailing edge web is provided with fourth folds on both sides of its width, the third folds and the fourth folds being folded towards the side facing away from the intermediate module;
the rear edge shell comprises a first shell and a second shell which are positioned on the windward side and the leeward side of the blade, wherein one long side of the first shell is mutually adhered, the inner wall of the long side of the other long side is respectively adhered with two fourth folded sides, and the inner walls of the long sides of the opening of the front edge shell are respectively adhered with two third folded sides.
6. A method for forming a blade module according to any one of claims 1 to 5, comprising the steps of:
respectively integrally forming a front edge shell, a rear edge shell, a front edge web and a rear edge web, and respectively bonding the front edge shell, the rear edge shell, the front edge web and the rear edge web by adopting structural adhesive to form a front edge module and a rear edge module;
the method comprises the steps of pre-manufacturing a middle shell, a plurality of ribs and a plurality of reinforcing ribs, respectively forming a first limit groove and a second limit groove on two sides of each rib, and assembling the ribs, the reinforcing ribs and the middle shell to form a middle module;
and the front edge module, the middle module and the rear edge module are sequentially adhered and fixed along the chord length direction of the blade by adopting structural adhesive to form the blade module, and the structural adhesive is coated on the outer sides of the first folding edges on the two sides of the middle shell and the outer sides of the second bonding plates and the fourth bonding plates on the two sides of the wing rib.
7. The method of forming a blade module according to claim 6, wherein the third folded edges on both sides of the front edge web are adhered to the inner walls of the long edges on both sides of the front edge shell after being coated with the adhesive layer on one side of the front edge shell, and the fourth folded edges on both sides of the rear edge web are adhered to the inner walls of the long edges on both sides of the rear edge shell after being coated with the adhesive layer on one side of the rear edge shell;
a side plate surface of the front edge web, which is far away from the third folded edge, is flush with the long side end surfaces of the two sides of the front edge shell, and a side plate surface of the rear edge web, which is far away from the fourth folded edge, is flush with the long side end surfaces of the two sides of the rear edge shell.
8. The method of forming a blade module according to claim 6, wherein during prefabrication of the rib, the outer fabric edge on one side of the rib is folded over towards the other side of the rib to form an adhesive;
the outer layer fabric is folded, a plurality of openings are cut at intervals at the edges of the outer layer fabric before the outer layer fabric is folded, the edges of the outer layer fabric are folded, a first lap joint groove and a second lap joint groove are formed by matching with rib ring sides, and a clamping groove is formed in the middle of the second lap joint groove.
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| CN101813057B (en) * | 2010-04-16 | 2013-01-16 | 南京工业大学 | Megawatt wind blade with cabin ribs |
| CN110576963B (en) * | 2019-09-19 | 2023-03-24 | 西北工业大学 | Solar unmanned aerial vehicle wing structure |
| CN212951088U (en) * | 2020-08-31 | 2021-04-13 | 常州启赋安泰复合材料科技有限公司 | Unmanned aerial vehicle outer wing that contains whole oil tank |
| CN216767624U (en) * | 2022-03-08 | 2022-06-17 | 常州市宏发纵横新材料科技股份有限公司 | Large-scale modularization wind-powered electricity generation blade connection structure |
| CN115355133B (en) * | 2022-09-23 | 2023-06-06 | 新创碳谷集团有限公司 | Modularized wide Liang Fengdian blade structure |
| CN115573854B (en) * | 2022-10-25 | 2023-04-07 | 新创碳谷集团有限公司 | Modularized wind power blade and manufacturing method |
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