CN216767625U - Modularization wind-powered electricity generation blade blocking connection structure - Google Patents
Modularization wind-powered electricity generation blade blocking connection structure Download PDFInfo
- Publication number
- CN216767625U CN216767625U CN202220493188.8U CN202220493188U CN216767625U CN 216767625 U CN216767625 U CN 216767625U CN 202220493188 U CN202220493188 U CN 202220493188U CN 216767625 U CN216767625 U CN 216767625U
- Authority
- CN
- China
- Prior art keywords
- trailing edge
- main beam
- blade
- edge body
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Wind Motors (AREA)
Abstract
The utility model relates to the technical field of wind power blade manufacturing, in particular to a modularized wind power blade blocking connection structure, wherein a wind power blade comprises a blade root part, a blade middle part and a blade tip part which are sequentially connected along the length direction, the blade middle part is arranged along the length direction in a segmented manner, and the modularized wind power blade blocking connection structure comprises: the front edge body is of an open arc structure; the main beam body comprises main beam caps connected with two ends of the front edge body and a web plate connected with the two main beam caps; one end of the rear edge shell is connected with the other ends of the two main beam caps; the two ends of the rear edge body are connected with the other ends of the two rear edge shells; the rear edge body, the rear edge shell, the girder cap and the front edge body are enclosed to form a closed blade section shape, and two ends of the girder cap are in inclined surface contact. According to the utility model, the form of the trailing edge shell is added between the main beam body and the trailing edge body, so that the bearing capacity of the blade in the width direction is increased, and the wind power blade with larger width and larger size can be manufactured in a modularized manner.
Description
Technical Field
The utility model relates to the technical field of wind power blade manufacturing, in particular to a modularized wind power blade block connecting structure.
Background
The wind power blade is a core component for converting natural wind energy into electric energy of a wind generating set in the wind generating set and is also a main basis for measuring design and technical level of the wind generating set. With the development of wind power blade technology, the size limitation is continuously broken through, and the sectional type wind power blade is gradually applied and popularized in order to manufacture and install large blades.
In the related art, a structure form of being divided into modules in the width direction of the blade is adopted, as shown in fig. 1, the structure form comprises a front edge body 01, a main beam 02 and a rear edge body 03 which are sequentially connected in the width direction of the blade, and the three are combined into a closed structure in a bonding form, so that the manufacturing efficiency is improved, and the transportation and the field assembly of the blade are facilitated;
however, the structural strength of each module is limited, so that the requirement of a wind power blade with a larger size cannot be met.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the modularized wind power blade block connecting structure is provided, and a wind power blade installation form with a larger size is realized.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a modularization wind-powered electricity generation blade blocking connection structure, wind-powered electricity generation blade is including the root of a leaf portion, leaf middle part and the leaf point portion that connect gradually on its length direction, the leaf middle part sets up along length direction segmentation, and includes at its width direction:
the front edge body is of an open arc structure;
the main beam body comprises main beam caps connected with two ends of the front edge body and a web plate connected with the two main beam caps;
one end of the trailing edge shell is connected with the other ends of the two main beam caps;
the two ends of the rear edge body are connected with the other ends of the two rear edge shells;
the rear edge body, the rear edge shell, the main beam cap and the front edge body are enclosed to form a closed blade section shape, and two ends of the main beam cap are in inclined surface contact.
Furthermore, the both ends of girder cap all are the setting of double inclined plane, and with the cladding has the enhancement layer on the butt joint face of trailing edge casing or leading edge body.
Further, the trailing edge shell has a thickness greater than a thickness of the trailing edge body.
Furthermore, the main beam body is of a single-web structure, and the rear edge body is of an open structure.
The trailing edge body has a bend on a contact surface with the trailing edge shell, the bend being in engagement with the inclined surface of the trailing edge shell.
Furthermore, the main beam body is of a single-web structure, and the rear edge body is of a closed structure.
The rear edge body is attached to the inclined plane of the rear edge shell and then connected into a closed structure.
And the connecting piece which is connected with the two connecting surfaces of the rear edge body and forms a closed structure is arranged in parallel with the web plate.
Furthermore, the main beam body is of a single-web structure, a connecting flange is arranged on the contact surface of the rear edge body and the rear edge shell, and the rear edge body and the rear edge shell are connected through the connecting flange.
Furthermore, the girder body is a double-web structure to form a girder box, and the rear edge body is a closed structure.
The utility model has the beneficial effects that: according to the utility model, the bearing capacity of the blade in the width direction is increased by adding the form of the rear edge shell between the main beam body and the rear edge body, the connection reliability is further improved by arranging the inclined surface contact, and compared with the prior art, the modularized manufacturing of the wind power blade with larger width and larger size is more facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a connection structure of a modular wind turbine blade according to the background art of the present invention;
FIG. 2 is a schematic diagram of an explosive structure in a top view of a modular wind turbine blade block connecting structure in an embodiment of the utility model;
FIG. 3 is a schematic cross-sectional view of a blade center portion of a wind turbine blade according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3 according to one embodiment of the present invention;
FIG. 5 is an enlarged view of a portion B shown in FIG. 3 according to one embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the middle of a blade of a wind turbine blade according to a second embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of the middle part of a blade of a wind turbine blade according to a third embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of the middle of a blade of a wind turbine blade according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured 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 as used herein are for illustrative purposes only and do not represent the only embodiments.
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 in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
As shown in fig. 2 to 5, in the embodiment of the present invention, the wind turbine blade includes a blade root portion 10, a blade middle portion 20, and a blade tip portion 30 connected in sequence along a length direction of the wind turbine blade, the blade middle portion 20 is arranged in a segmented manner along the length direction, and is also fabricated and mounted in a segmented manner in a width direction thereof, by which not only is it convenient to fabricate and transport, but also the wind turbine blade is fabricated and mounted in a splicing manner on site, in order to further implement large-scale fabrication of the wind turbine blade, in the embodiment of the present invention, the modular structure of the blade middle portion 20 is improved, as shown in fig. 3, the blade middle portion 20 includes a leading edge body 21, a main beam body 22, a trailing edge shell 23, and a trailing edge body 24 along a width direction of the blade, wherein:
the front edge body 21 is of an open arc structure, the front edge shell is arranged at the foremost end of the blade in the width direction and is of a carbon fiber structure, and the front edge shell is manufactured and molded through a mold;
the main beam body 22 is supported and connected, and as shown in fig. 3, the main beam body 22 includes main beam caps 22a connected to both ends of the front edge body 21 and webs 22b connected to the two main beam caps 22 a; the two main beam caps 22a are connected through the web plate 22b, so that the overall performance of the blade is improved, namely the tensile strength and the compressive strength are further improved;
one end of the trailing edge shell 23 is connected with the other ends of the two main beam caps 22a, the two ends of the trailing edge body 24 are connected with the other ends of the two trailing edge shells 23, the trailing edge body 24, the trailing edge shell 23, the main beam caps 22a and the leading edge body 21 enclose a closed blade section shape, and the two ends of the main beam caps 22a are in inclined surface contact. According to the utility model, the size of the blade middle part 20 in the width direction is increased by arranging the rear edge shell 23, and the wind power blade with a larger size can be manufactured by arranging reasonable strength;
it should be noted that, in the embodiment of the present invention, the connection manner of the trailing edge body 24, the trailing edge shell 23, the main beam body 22 and the leading edge body 21 may be through adhesive connection or through a flange 24b, the structural form of the main beam body 22 may be a single web 22b or a box structure composed of two webs 22b, the trailing edge body 24 may be an open structure or a closed structure, and those skilled in the art may combine the above structures on the basis of the embodiment of the present invention, but the above combined structures in any form all fall into the protection scope of the present invention;
in the above embodiment, the trailing edge shell 23 is added between the main beam body 22 and the trailing edge body 24, so that the bearing capacity of the blade in the width direction is increased, the connection reliability is further improved by the arrangement of the inclined surface contact, and compared with the prior art, the modularized manufacturing of the wind power blade with larger width and larger size is facilitated.
On the basis of the above embodiment, as shown in fig. 4, both ends of the spar cap 22a are arranged in a double-inclined plane, and a reinforced layer is coated on the interface with the trailing edge shell 23 or the leading edge body 21. The inclined plane that the face that girder cap 22a and leading edge body 21 contacted is the flaring setting inwards, when the blade rotated through this kind of setting, the pressure that the leading edge body 21 received can be transmitted for web 22b through this inclined plane, make web 22b play the effect of support, thereby holistic intensity has been improved, and another inclined plane of girder cap 22a is the throat setting, setting through this throat, can be through the setting of enhancement layer, partial girder cap 22a and partial leading edge body 21's internal surface has been covered, thereby the joint strength between the two has been strengthened, and the inclined plane setting through the throat, make laying of enhancement layer gentler, the connection reliability in the width direction has been improved.
In the embodiment of the present invention, the thickness of the trailing edge shell 23 is greater than that of the trailing edge body 24, the trailing edge shell 23 is of an arc-shaped plate structure, and the overall strength of the blade middle portion 20 is improved by thickening the trailing edge shell 23, and in the embodiment of the present invention, the main beam body 22 is of a single-web 22b structure, and the trailing edge body 24 is of an open structure. As shown in fig. 3, the single web 22b is arranged, so that the whole girder body 22 is in an i-shaped structure, and the supporting strength of the girder body 22 is improved;
in order to further improve the connection strength between the trailing edge body 24 and the trailing edge shell 23, in the embodiment of the present invention, as shown in fig. 3 and 5, the trailing edge body 24 has a bend on the contact surface with the trailing edge shell 23, the bend being in contact with the inclined surface of the trailing edge shell 23. By providing the bent surface and the rear edge shell 23, the contact area is increased, and the bonding strength is increased.
Example two
In the present embodiment, in order to further improve the reliability of the connection, in the second embodiment, the trailing edge body 24 is provided in a closed form as shown in fig. 6, the spar body 22 is of a single web 22b structure, and the trailing edge body 24 is of a closed structure. The trailing edge body 24 is attached to the inclined surface of the trailing edge casing 23 and then joined to form a closed structure. Therefore, the contact area between the rear edge body 24 and the rear edge shell 23 is increased, and the rear edge body 24 is in a box shape through the arrangement of a closed structure, so that the overall strength is improved;
in order to further improve the overall supporting strength, in the embodiment of the present invention, please refer to fig. 6, wherein the connecting member 24a connecting the two connecting surfaces of the rear edge body 24 to form a closed structure is disposed in parallel with the web 22 b. By being arranged in parallel with the web 22b, the web 22b and the connecting piece 24a simultaneously support the blade when the blade is under pressure.
EXAMPLE III
In the third embodiment of the present invention, in order to improve the connection reliability between the trailing edge body 24 and the trailing edge shell 23, the connection manner between the trailing edge shell 23 and the trailing edge body 24 is modified, as shown in fig. 7, the main beam body 22 is in a single-web 22b structure, and the contact surface between the trailing edge body 24 and the trailing edge shell 23 is provided with a connection flange 24b, and the two are connected through the connection flange 24 b. The flanges 24b with holes are arranged on the butt joint surfaces of the trailing edge shell 23 and the trailing edge shell 24 and are connected through fasteners, the connection mode is more reliable and convenient compared with the bonding mode, and the strength of the trailing edge shell 24 and the trailing edge shell 23 is improved to a certain extent due to the arrangement of the flanges 24 b.
Example four
In the fourth embodiment of the present invention, if the width of the interlobe portions 20 is larger than those of the above-described three embodiments, it is considered to modify the girder body 22, as shown in fig. 8, in the embodiment of the present invention, the girder body 22 is in a twin-web 22b structure, constituting a girder box, and the trailing edge body 24 is in a closed structure. It should be noted that the double-web 22b structure herein is a structure that is connected to form a girder box near the two ends of the girder cap 22a, and not only the connection reliability with the trailing edge shell 23 is improved, but also the overall support reliability is further increased by the cooperation of the box-type structure closed with the trailing edge body 24.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a modularization wind-powered electricity generation blade blocking connection structure, a serial communication port, wind-powered electricity generation blade is including root of leaf portion, leaf middle part and the leaf point portion that connects gradually on its length direction, the leaf middle part sets up along length direction segmentation, and includes at its width direction:
the front edge body is of an open arc structure;
the main beam body comprises main beam caps connected with two ends of the front edge body and a web plate connected with the two main beam caps;
one end of the trailing edge shell is connected with the other ends of the two main beam caps;
the two ends of the rear edge body are connected with the other ends of the two rear edge shells;
the rear edge body, the rear edge shell, the main beam cap and the front edge body are enclosed to form a closed blade section shape, and two ends of the main beam cap are in inclined surface contact.
2. The modular wind blade block connecting structure according to claim 1, wherein both ends of the spar cap are arranged in a double-inclined plane, and a reinforcement layer is coated on a butt joint surface with the trailing edge shell or the leading edge body.
3. The modular wind blade segment connection of claim 1, wherein the trailing edge shell has a thickness greater than a thickness of the trailing edge body.
4. The modular wind blade segment connecting structure according to any one of claims 1 to 3, wherein the main beam body is of a single web structure and the trailing edge body is of an open structure.
5. The modular wind blade segment connection of claim 4 wherein the trailing edge body has a bend on the contact surface with the trailing edge shell, the bend engaging the bevel of the trailing edge shell.
6. The modular wind blade segment connecting structure according to any one of claims 1 to 3, wherein the main beam body is of a single web structure and the trailing edge body is of a closed structure.
7. The modular wind blade block connection of claim 6 wherein the trailing edge body is attached to the bevel of the trailing edge shell and then joined to form a closed structure.
8. The modular wind blade segment connecting structure according to claim 7, wherein the connecting piece forming the closed structure connecting the two connecting faces of the trailing edge body is arranged parallel to the web.
9. The modular wind blade segment connecting structure according to any one of claims 1 to 3, wherein the main beam body is of a single-web structure, and a connecting flange is arranged on a contact surface of the trailing edge body and the trailing edge shell, and the two are connected through the connecting flange.
10. The modular wind blade block connection structure of any one of claims 1 to 3, wherein the spar body is a double web structure, constituting a spar box, and the trailing edge body is a closed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493188.8U CN216767625U (en) | 2022-03-08 | 2022-03-08 | Modularization wind-powered electricity generation blade blocking connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493188.8U CN216767625U (en) | 2022-03-08 | 2022-03-08 | Modularization wind-powered electricity generation blade blocking connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767625U true CN216767625U (en) | 2022-06-17 |
Family
ID=81957610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220493188.8U Active CN216767625U (en) | 2022-03-08 | 2022-03-08 | Modularization wind-powered electricity generation blade blocking connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274423A1 (en) * | 2021-09-10 | 2023-01-05 | 常州市宏发纵横新材料科技股份有限公司 | Modular wind turbine blade and method for manufacturing same |
-
2022
- 2022-03-08 CN CN202220493188.8U patent/CN216767625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274423A1 (en) * | 2021-09-10 | 2023-01-05 | 常州市宏发纵横新材料科技股份有限公司 | Modular wind turbine blade and method for manufacturing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216767624U (en) | Large-scale modularization wind-powered electricity generation blade connection structure | |
| CN101876292B (en) | Segmented wind turbine blade | |
| CN115355133B (en) | Modularized wide Liang Fengdian blade structure | |
| CN216767625U (en) | Modularization wind-powered electricity generation blade blocking connection structure | |
| CN114183296B (en) | Wind-powered electricity generation blade spanwise piecemeal connection structure | |
| US20230366374A1 (en) | Chordwise segment connection structure for wind turbine blades | |
| CN115573854B (en) | Modularized wind power blade and manufacturing method | |
| CN113700599B (en) | Composite sectional type wind power blade with high connection strength | |
| CN112867864A (en) | Spar cap configuration for joined wind turbine blades | |
| CN115506947A (en) | Multi-beam tension type wind power blade and manufacturing method thereof | |
| CN113323797A (en) | Modularized wind power blade | |
| CN115596604B (en) | Multi-web structure modularized wind power blade | |
| CN218624493U (en) | Modular wind power blade connecting structure | |
| CN111396243A (en) | Large wind turbine blade with three-web-plate structure and assembling method | |
| CN217206722U (en) | Wind-powered electricity generation blade modularization web structure | |
| CN216767623U (en) | Modular wind power blade connecting structure | |
| CN217055461U (en) | Web plate for fan blade, fan blade and wind generating set | |
| CN219381693U (en) | Double-web blade module bonding structure | |
| CN210106062U (en) | Wind wheel blade | |
| CN216866894U (en) | Four-segment wind power blade module structure | |
| CN211975271U (en) | Large-scale wind turbine generator blade with three-web structure | |
| CN112443451A (en) | Novel wind power generation blade | |
| CN115405460B (en) | Coreless material wind power blade | |
| CN218407666U (en) | Modular wind power blade component connecting structure | |
| CN113738570B (en) | Wind turbine generator with combined blades and manufacturing system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221101 Address after: 213127 No. 329, Huanghai Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Xinchuang Carbon Valley Group Co.,Ltd. Address before: 213135, No. 28, Lijiang Road, textile industry garden, Xixia Town villa, Xinbei District, Jiangsu, Changzhou Patentee before: CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECHNOLOGY Co.,Ltd. |