CN218151236U - Composite material wind power blade with reinforced longitudinal and transverse directions - Google Patents
Composite material wind power blade with reinforced longitudinal and transverse directions Download PDFInfo
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- CN218151236U CN218151236U CN202222846239.3U CN202222846239U CN218151236U CN 218151236 U CN218151236 U CN 218151236U CN 202222846239 U CN202222846239 U CN 202222846239U CN 218151236 U CN218151236 U CN 218151236U
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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 utility model relates to a wind-powered electricity generation blade technical field especially relates to a compound material wind-powered electricity generation blade that vertical and horizontal direction is strengthened, include: the inner part of the blade shell is a cavity, and the outer side surface of the blade shell forms a complete blade shape; a plurality of transverse reinforcing plates distributed inside the blade shell at intervals along the length direction of the blade shell; the outer edge of each transverse reinforcing plate is attached to the circumferential inner wall of the blade shell, and the side face of each transverse reinforcing plate is perpendicular to the length direction of the blade shell; and the longitudinal reinforcing part extends along the length direction of the blade shell and penetrates through all the transverse reinforcing plates. The utility model aims at providing a compound material wind-powered electricity generation blade that length and breadth direction is strengthened to the defect that exists among the prior art, have better structural rigidity, prevent effectively that wind-powered electricity generation blade from producing the deformation at the rotation in-process.
Description
Technical Field
The utility model relates to a wind-powered electricity generation blade technical field especially relates to a compound material wind-powered electricity generation blade that vertical and horizontal direction is strengthened.
Background
The blade of the wind driven generator is an important component of the wind driven generator, the structural rigidity of the blade is related to the deformation degree of the wind driven generator blade in the rotating process, and the deformation degree is directly related to the energy conversion rate and the safety of a fan.
Traditional wind power blade usually adopts the metal material preparation, and blade weight is big leads to the energy conversion rate low, consequently people use gradually that structural strength is big, but the lighter combined material of weight replaces the metal material and make wind power blade. However, due to the special processing mode of the composite material, that is, the composite material part is usually formed by firstly laying the composite material fabric into the shape of the part and then processing the part by the curing and forming process, the whole wind turbine blade is usually of a shell structure. In order to guarantee the structural rigidity of the wind power blade, the prior art usually adopts a web to strengthen the shell structure of the blade, but the web can only maintain the thickness direction of the wind power blade, and the strengthening effect of the longitudinal and transverse directions of the blade is limited.
Therefore, a composite material wind power blade with better structural rigidity needs to be designed, and deformation generated in the rotation of the wind power blade can be better prevented.
SUMMERY OF THE UTILITY MODEL
The utility model provides a compound material wind-powered electricity generation blade that vertical and horizontal direction is strengthened can promote the structural rigidity of wind-powered electricity generation blade, solves the problem in the background art effectively.
The utility model provides a pair of compound material wind-powered electricity generation blade that vertical and horizontal direction is strengthened, include:
the inner part of the blade shell is a cavity, and the outer side surface of the blade shell forms a complete blade shape;
a plurality of transverse reinforcing plates distributed inside the blade shell at intervals along the length direction of the blade shell; the outer edge of each transverse reinforcing plate is attached to the circumferential inner wall of the blade shell, and the side face of each transverse reinforcing plate is perpendicular to the length direction of the blade shell;
a longitudinal reinforcement member extending in a length direction of the blade shell and passing through all of the transverse reinforcement plates.
Furthermore, the outer edge of the transverse reinforcing plate is provided with an extension section extending towards one side or two sides, and the extension section is attached to the circumferential inner wall of the blade shell.
Furthermore, the top and the bottom of the blade shell are both provided with embedded beams extending along the length direction of the blade shell.
Further, the longitudinal reinforcing component is plate-shaped, and the top surface and the bottom surface of the longitudinal reinforcing component are respectively attached to the top surface and the bottom surface of the inner wall of the blade shell.
Further, the top surface and the bottom surface of the longitudinal reinforcing component are respectively located at the embedded beam at the top and the bottom of the blade shell.
Further, the transverse reinforcing plate is provided with a first through hole in an oval shape, and the longitudinal reinforcing member passes through the first through hole.
Further, the longitudinal reinforcing member is in the shape of a rod; the transverse reinforcing plate is provided with a second through hole; the longitudinal reinforcing component penetrates through the second through hole, and the side face of the longitudinal reinforcing component is attached to the inner wall of the second through hole.
Furthermore, a lantern ring and a plurality of reinforcing ribs are further arranged on part of the transverse reinforcing plates; the lantern ring is sleeved on the longitudinal reinforcing part; the reinforcing ribs are circumferentially distributed along the longitudinal reinforcing part, and two ends of each reinforcing rib are respectively connected with the lantern ring and the transverse reinforcing plate.
Further, the cross section of the longitudinal reinforcing member is circular.
Through the technical scheme of the utility model, can realize following technological effect:
the wind power blade strengthens the thickness direction and the transverse direction of the wind power blade in a mode that a plurality of transverse reinforcing plates are attached to the circumferential inner wall of the blade shell, and maintains the sections of a plurality of positions in the length direction of the wind power blade through the transverse reinforcing plates, so that the integral shape of the wind power blade is not easy to deform; the longitudinal reinforcing parts penetrating through all the transverse reinforcing plates can limit the relative positions of the transverse reinforcing plates, so that the rigidity of the whole wind power blade is further improved.
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 description below 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 structural view of a composite wind power blade reinforced in the longitudinal and transverse directions according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a transverse reinforcing plate and a longitudinal reinforcing member according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a transverse reinforcing plate according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of the blade shell of the present invention;
fig. 5 is a schematic structural view of a composite wind power blade reinforced in longitudinal and transverse directions according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a transverse reinforcing plate and a longitudinal reinforcing member according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a transverse reinforcing plate according to a second embodiment of the present invention;
reference numerals are as follows: 1. a blade shell; 11. pre-burying a beam; 2. a transverse reinforcement plate; 21. an extension section; 22. a first through hole; 23. a second through hole; 24. a collar; 25. reinforcing ribs; 3. a longitudinal reinforcing member.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. In addition, according to the general practice in the art, the longitudinal direction of the wind turbine blade is generally referred to as the longitudinal direction, and the direction perpendicular to the longitudinal direction of the wind turbine blade and perpendicular to the thickness direction of the wind turbine blade is generally referred to as the lateral direction.
Example one
The composite material wind power blade reinforced in the longitudinal and transverse directions according to the embodiment is shown in fig. 1 to 4, and comprises:
the blade shell 1 is made of composite materials, the interior of the blade shell is a cavity, and the outer side surface of the blade shell forms a complete blade shape;
a plurality of transverse reinforcing plates 2 made of composite materials are distributed inside the blade shell 1 at intervals along the length direction of the blade shell 1; the outer edge of each transverse reinforcing plate 2 is attached to the circumferential inner wall of the blade shell 1, and the side surface of each transverse reinforcing plate 2 is perpendicular to the length direction of the blade shell 1;
a longitudinal reinforcement member 3 of composite material extending along the length of the blade shell 1 and passing through all of the transverse reinforcement plates 2.
Specifically, the principle of reinforcing the structural rigidity of the wind power blade by the components is as follows: according to the wind power blade, the thickness direction and the transverse direction of the blade shell 1 cannot generate mutual approaching deformation in a mode that the plurality of transverse reinforcing plates 2 are attached to the circumferential inner wall of the blade shell 1, so that the thickness direction and the transverse direction of the wind power blade are reinforced, and the cross sections of a plurality of positions in the length direction of the wind power blade are respectively maintained through the plurality of transverse reinforcing plates 2, so that the integral shape of the wind power blade is not easy to deform; considering that the flat shape of the blade shell 1 may cause misalignment between the plurality of transverse reinforcing plates 2, particularly in the thickness direction of the blade shell 1, the present wind turbine blade limits the relative positions between the plurality of transverse reinforcing plates 2, particularly limits the alignment relationship between the plurality of transverse reinforcing plates 2 in the thickness direction of the blade shell 1, by using the longitudinal reinforcing member 3 penetrating through all the transverse reinforcing plates 2, thereby further improving the rigidity of the whole wind turbine blade. For the parts which are easy to deform (such as the parts close to the blade tip), the reinforcing effect can be further improved by thickening the transverse reinforcing plate 2.
Preferably, the lateral reinforcing plate 2 is provided with an extension section 21 extending to one side or two sides at the outer edge, and as shown in fig. 3, the extension section 21 is attached to the circumferential inner wall of the blade shell 1. The contact area between the transverse reinforcing plate 2 and the blade shell 1 is increased through the extension section 21, and the transverse reinforcing plate 2 is prevented from being inclined to affect the reinforcing effect of the transverse reinforcing plate 2. Usually, the transverse reinforcing plate 2 is bonded inside the blade shell 1 through structural adhesive, and the extension section 21 can also increase the adhesive area, so that the transverse reinforcing plate 2 is connected with the blade shell 1 more firmly.
In order to further improve the structural strength of the blade shell 1, as shown in fig. 4, the top and the bottom of the blade shell 1 are provided with embedded beams 11 extending along the length direction of the blade shell 1. The embedded beam 11 can play the role of skeleton when the shape of the blade shell 1 is laid out by the composite material, and then forms an integrated structure with the blade shell 1, so that the embedded beam 11 can be used as a main force transmission structure on the blade shell 1 in the subsequent use process of the blade, and the damage caused by tearing due to overlarge stress of the blade shell 1 is avoided.
In this embodiment, the specific structure of the longitudinal reinforcing component 3 is a plate body shape, and the top surface and the bottom surface of the longitudinal reinforcing component 3 are respectively attached to the top surface and the bottom surface of the inner wall of the blade shell 1, so as to form a structure similar to a web plate, so that the thickness direction of the blade shell 1 in the whole length direction can be effectively supported. Preferably, the top surface and the bottom surface of the longitudinal reinforcing component 3 are respectively arranged at the embedded beams 11 at the top and the bottom of the blade shell 1, so that the single-side stress of the blade shell 1 can be better shared by the upper and the lower embedded beams 11 through the longitudinal reinforcing component 3, and further the blade shell 1 is prevented from deforming. In order to facilitate the installation of the longitudinal reinforcing members 3, it is preferable that the transverse reinforcing plate 2 is provided with a first through hole 22 having an oval shape, and the longitudinal reinforcing members 3 are installed while being maintained horizontally through the first through hole 22 and then rotated 90 ° to reach the vertical direction. Through grooves are formed in positions, corresponding to the transverse reinforcing plates 2, of the longitudinal reinforcing components 3, and the transverse reinforcing plates 2 can penetrate through the through grooves to form the attachment to the complete circumference of the blade shell 1.
Example two
As shown in fig. 5 to 7, a composite wind turbine blade reinforced in the longitudinal and transverse directions according to this embodiment is different from the first embodiment in that the longitudinal reinforcing member 3 in this embodiment is in a rod shape; corresponding to the longitudinal reinforcing component 3 of the rod body, the transverse reinforcing plate 2 is provided with a second through hole 23, the cross section shape of the second through hole 23 is the same as that of the longitudinal reinforcing component 3, the longitudinal reinforcing component 3 penetrates through the second through hole 23, and the side surface of the longitudinal reinforcing component 3 is attached to the inner wall of the second through hole 23. Compared with the plate body shape of the first embodiment, under the condition of the same weight, the diameter of the rod body shape in the first embodiment can be far larger than the thickness of the plate body shape, so that the rigidity of the longitudinal reinforcing component 3 is stronger, and the dislocation among the plurality of transverse reinforcing plates 2 is further avoided. The cross section of the longitudinal reinforcing component 3 is preferably circular, so that the composite fabric can be more uniform in the process of being wound into a cylinder, the gaps among the layers of the composite fabric are reduced, and the rigidity of the longitudinal reinforcing component 3 is further improved.
A collar 24 and a plurality of reinforcing ribs 25 are preferably further provided on a part of the lateral reinforcing plate 2, as shown in fig. 7; the lantern ring 24 is sleeved on the longitudinal reinforcing part 3; a plurality of reinforcing ribs 25 are distributed along the circumferential direction of the longitudinal reinforcing part 3, and both ends of each reinforcing rib 25 are respectively connected with the lantern ring 24 and the transverse reinforcing plate 2; the structure can effectively avoid the deflection of the transverse reinforcing plate 2 and ensure the reinforcing effect of the transverse reinforcing plate 2 on the blade shell 1.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a compound material wind-powered electricity generation blade that length and breadth direction is strengthened which characterized in that includes:
the blade shell (1) is internally provided with a cavity, and the outer side surface of the blade shell forms a complete blade shape;
a plurality of transverse reinforcing plates (2) which are distributed in the blade shell (1) at intervals along the length direction of the blade shell (1); the outer edge of each transverse reinforcing plate (2) is attached to the circumferential inner wall of the blade shell (1), and the side surface of each transverse reinforcing plate (2) is perpendicular to the length direction of the blade shell (1);
a longitudinal reinforcement member (3) extending in a length direction of the blade shell (1) and passing through all the transverse reinforcement plates (2).
2. The composite wind-power blade with the reinforced longitudinal and transverse directions as claimed in claim 1, wherein the outer edge of the transverse reinforcing plate (2) is provided with an extension section (21) extending towards one side or two sides, and the extension section (21) is attached to the circumferential inner wall of the blade shell (1).
3. The composite wind power blade reinforced in the longitudinal and transverse directions as claimed in claim 1, wherein the top and the bottom of the blade shell (1) are provided with embedded beams (11) extending along the length direction of the blade shell (1).
4. The longitudinal and transverse reinforced composite wind power blade according to claim 3, wherein the longitudinal reinforcing member (3) is plate-shaped, and the top surface and the bottom surface of the longitudinal reinforcing member (3) are respectively attached to the top surface and the bottom surface of the inner wall of the blade shell (1).
5. The composite wind power blade reinforced in the longitudinal and transverse directions as claimed in claim 4, wherein the top surface and the bottom surface of the longitudinal reinforcing component (3) are respectively located at the embedded beams (11) at the top and the bottom of the blade shell (1).
6. The composite wind turbine blade reinforced in longitudinal and transverse directions according to claim 4, wherein the transverse reinforcing plate (2) is provided with a first through hole (22) in an oval shape, and the longitudinal reinforcing member (3) penetrates through the first through hole (22).
7. The composite wind turbine blade reinforced in longitudinal and transverse directions according to claim 3, wherein the longitudinal reinforcing member (3) is in the shape of a rod; a second through hole (23) is formed in the transverse reinforcing plate (2); the longitudinal reinforcing component (3) penetrates through the second through hole (23), and the side face of the longitudinal reinforcing component (3) is attached to the inner wall of the second through hole (23).
8. The composite wind-power blade reinforced in the longitudinal and transverse directions as claimed in claim 7, wherein a part of the transverse reinforcing plates (2) are further provided with a collar (24) and a plurality of reinforcing ribs (25); the lantern ring (24) is sleeved on the longitudinal reinforcing part (3); the reinforcing ribs (25) are distributed along the circumferential direction of the longitudinal reinforcing part (3), and two ends of each reinforcing rib (25) are respectively connected with the lantern ring (24) and the transverse reinforcing plate (2).
9. The composite wind turbine blade reinforced in longitudinal and transverse directions according to claim 7, wherein the cross section of the longitudinal reinforcing member (3) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222846239.3U CN218151236U (en) | 2022-10-27 | 2022-10-27 | Composite material wind power blade with reinforced longitudinal and transverse directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222846239.3U CN218151236U (en) | 2022-10-27 | 2022-10-27 | Composite material wind power blade with reinforced longitudinal and transverse directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218151236U true CN218151236U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222846239.3U Active CN218151236U (en) | 2022-10-27 | 2022-10-27 | Composite material wind power blade with reinforced longitudinal and transverse directions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218151236U (en) |
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2022
- 2022-10-27 CN CN202222846239.3U patent/CN218151236U/en active Active
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