CN215762026U - Trailing edge structure of wind power blade and wind power blade - Google Patents
Trailing edge structure of wind power blade and wind power blade Download PDFInfo
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- CN215762026U CN215762026U CN202121802761.0U CN202121802761U CN215762026U CN 215762026 U CN215762026 U CN 215762026U CN 202121802761 U CN202121802761 U CN 202121802761U CN 215762026 U CN215762026 U CN 215762026U
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- 239000011162 core material Substances 0.000 claims abstract description 74
- 230000005611 electricity Effects 0.000 claims abstract description 29
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- 239000004744 fabric Substances 0.000 claims description 15
- 239000003365 glass fiber Substances 0.000 claims description 14
- 238000003892 spreading Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000037303 wrinkles Effects 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 20
- 239000003292 glue Substances 0.000 description 5
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- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The application relates to the technical field of wind power blade design and production, provides a trailing edge structure and wind power blade of wind power blade, and wherein, wind power blade includes casing and lower casing, goes up to inject between casing and the lower casing and has filled the space, and wind power blade's trailing edge structure includes: the core material is arranged in the filling space and positioned on one side close to the rear edge of the blade of the wind power blade; a first layer laid on the outer periphery of the core material; the second layer is partially laid on the outer periphery of the first layer and is positioned on one side, close to the trailing edge of the blade, of the core material; and the third layer is partially laid on the outer periphery of the first layer and is positioned on one side of the core material far away from the trailing edge of the blade. Through the technical scheme of this application, realized when satisfying blade trailing edge bonding strength, better satisfy the anti bucking intensity demand of blade trailing edge and make the better technological effect of wind-powered electricity generation blade compound die effect, improved the quality, the security and the stability of wind-powered electricity generation blade, removed the time and the expenditure of preparation trailing edge web simultaneously from.
Description
Technical Field
The utility model relates to the technical field of wind power blade design and production, in particular to a trailing edge structure of a wind power blade and the wind power blade.
Background
With the development of the wind power industry, people pay more and more attention to the quality and stability of wind power blade manufacturing, and long-term economic benefits and stable market share can be brought to enterprises due to the stability of products. The traditional rear edge buckling-resistant structure is characterized in that a rear edge web with proper height is prefabricated firstly, then the rear edge web is bonded in an auxiliary beam area of the rear edge in a die assembly working section for manufacturing the wind power blade, and the requirement of the rear edge buckling resistance of the wind power blade is met by bonding the rear edge web.
The existing trailing edge web needs higher personnel operating skill, accurate tool design and strict process management and control from production to installation, and when the trailing edge web is very close to a prefabricated bonding angle of the trailing edge or a trailing edge structure, a chord direction positioning tool is not installed in a space, and when the chord direction positioning tool fails, the problems of poor perpendicularity and poor die closing clearance of the trailing edge web can be seriously caused. Therefore, the problems that the wind power blade is poor in mold closing gap and poor in rear edge buckling resistance effect due to poor installation effect of the rear edge web plate easily exist in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a trailing edge structure and wind-powered electricity generation blade of wind-powered electricity generation blade for realize satisfying wind-powered electricity generation blade trailing edge bonding strength, better satisfy the anti intensity demand of bucking of wind-powered electricity generation blade trailing edge and make the better technological effect of wind-powered electricity generation blade compound die effect, improved the quality, security and the stability of wind-powered electricity generation blade, also removed the time and the expenditure of preparation trailing edge web from simultaneously.
In a first aspect, an embodiment of the present application provides a trailing edge structure of a wind turbine blade, the wind turbine blade includes an upper shell and a lower shell, the upper shell and a filling space is defined between the lower shell, the trailing edge structure includes: the core material is arranged in the filling space and is positioned on one side close to the blade trailing edge of the wind power blade; a first layer laid on an outer peripheral side of the core material; the second layer is partially laid on the outer periphery of the first layer and is positioned on one side, close to the trailing edge of the blade, of the core material; and the third layer is partially laid on the outer peripheral side of the first layer and is positioned on one side, far away from the trailing edge of the blade, of the core material.
In the implementation process, the core material is filled in the filling space and located at the trailing edge position of the blade to play a supporting role, the structural strength of the trailing edge structure is improved, the bonding strength required by the trailing edge structure of the blade is met by laying the first laying layer on the outer peripheral side of the core material, the stability of the trailing edge structure of the blade is improved, when the second laying layer is laid, the laying work of the second laying layer can be carried out according to the bonding width of the trailing edge die joint of the wind power blade to ensure the safety of the trailing edge structure of the blade, when the third laying layer is laid, the strength calculation can be carried out according to the structure, and the third laying layer is formed by laying n layers of glass fiber cloth to achieve the strength required by the buckling resistance of the trailing edge of the blade The problem that the anti bucking effect of trailing edge is poor to when satisfying blade trailing edge bonding strength, better satisfied the anti bucking demand of blade trailing edge, make wind-powered electricity generation blade compound die effect better, improved the quality, the security and the stability of wind-powered electricity generation blade, also removed the time and the expenditure of preparation trailing edge web from simultaneously.
In a possible implementation manner, a gap is arranged between the first paving layer and the upper shell, and the gap is filled with a bonding layer; wherein a side of the upper shell facing away from the core material is configured as a windward side of the wind power blade.
In the implementation process, the core material is attached to the lower shell, the outer peripheral side of the core material is wrapped with the first layer, the first layer is bonded with the lower shell, the bonding layer is filled between the upper shell and the first layer, the upper shell is bonded with the first layer, so that the upper shell is connected with the lower shell, and the die assembly of the upper shell and the lower shell of the wind power blade is completed.
In a possible implementation manner, the trailing edge structure of the wind turbine blade further includes: and one end of the rubber baffle is connected with the upper shell, the other end of the rubber baffle is connected with one side of the third paving layer, which deviates from the core material, a closed cavity is defined among the rubber baffle, the upper shell, the first paving layer and the third paving layer, and the bonding layer is filled in the closed cavity.
In the implementation process, the bonding layer is filled in the closed cavity and is separated from the filling space defined between the upper shell and the lower shell by the glue blocking plate, so that the adhesive in the bonding layer is prevented from overflowing to the filling space, the using amount of the adhesive can be reduced on one hand, and the clean state of the filling space of the wind power blade can be maintained on the other hand, thereby realizing the effect of prolonging the service life of the blade.
In a possible implementation manner, the trailing edge structure of the wind turbine blade further includes: the anti-wrinkle core material is attached to one side, away from the trailing edge of the blade, of the third laying layer.
In the realization process, in wind-powered electricity generation blade manufacture process, carry out whole vacuum operation back that seals, fold can appear in the layer (promptly this application) of laying of trailing edge auxiliary beam region the third, this application sets up crease-resistant core through the one side of laying the layer and deviating from the core at the third, utilizes crease-resistant core to the pressure that the layer produced is laid to trailing edge auxiliary beam region, can effectively avoid the regional layer of laying of trailing edge auxiliary beam to appear the fold.
In a possible implementation manner, the trailing edge structure of the wind turbine blade further includes: the fourth layer of spreading, the fourth layer of spreading is laid in one side that crease-resistant core deviates from the blade trailing edge, just the fourth layer of spreading one end upwards extend to with the third layer of spreading is laminated mutually, and the other end warp crease-resistant core is kept away from one side of blade trailing edge is close to the direction extension of wind-powered electricity generation blade's blade leading edge.
In the implementation process, when the fourth layer is laid, one end of the fourth layer extends upwards to be attached to one end of the third layer, and the other end of the fourth layer extends towards the front edge of the blade to be attached to the other end of the third layer, so that the anti-wrinkle core material is sealed in a space formed by the fourth layer and the third layer, and the stability of the anti-wrinkle core material is enhanced.
In a possible implementation manner, the fourth ply extends from the side of the wrinkle-resistant core material far away from the trailing edge of the blade to the direction close to the leading edge of the wind power blade by a distance in a range of 50mm to 100 mm.
In the implementation process, the fourth layer extends to the direction of being close to the blade leading edge of wind-powered electricity generation blade and is handled in order to satisfy the demand that the banding was handled, improves the steadiness of anti-wrinkle core, and the consideration of extension distance control at 50mm ~ 100mm lies in, and extension distance is short then be not enough to carry out the banding on the one hand and handles, and on the other hand extension distance overlength then can cause the material extravagant.
In one possible implementation, the wrinkle-resistant core material has a triangular shape in a cross-section in a direction perpendicular to the upper case and the lower case.
In a possible implementation manner, the second layer is U-shaped, and two ends of the second layer are respectively paved on the upper side and the lower side of the first layer; and/or the third layer is Z-shaped, one end of the third layer is laid on the upper side of the first layer, the other end of the third layer is sequentially attached to one side of the first layer, which is far away from the trailing edge of the blade, and the lower shell, and the third layer extends in the direction far away from the trailing edge of the blade; and/or the glue blocking plate is L-shaped.
In a possible implementation manner, the first ply, the second ply, the third ply and the rubber baffle plate all comprise multiple layers of glass fiber cloth, and the multiple layers of glass fiber cloth are laid in staggered layers; and/or the fourth layer is a single-layer glass fiber cloth.
In the implementation process, when the first laying layer, the second laying layer, the third laying layer and the rubber baffle are laid, the multilayer glass fiber cloth is laid in a staggered-layer laying mode, so that the problem of stress concentration caused by stacking of the multilayer glass fiber cloth is avoided.
In a second aspect, an embodiment of the present application further provides a wind turbine blade, including the trailing edge structure of the wind turbine blade according to the foregoing embodiment.
The wind turbine blade provided in the embodiment of the second aspect of the present application includes the trailing edge structure of the wind turbine blade described in the embodiment of the first aspect, and therefore has the technical effects of any of the above embodiments, which are not described herein again.
The utility model provides a wind-powered electricity generation blade's trailing edge structure that first aspect provided, through in the filling space of injecing between wind-powered electricity generation blade's last casing and the lower casing and be close to wind-powered electricity generation blade's blade trailing edge one side and lay the core, lay first layer of laying at the periphery side of core, lay the second layer of laying at the core near one side periphery part of blade trailing edge, it forms the trailing edge structure to lay the third layer of laying at the core keep away from one side periphery part of blade trailing edge, when having realized satisfying blade trailing edge bonding strength, better satisfied the intensity demand of blade trailing edge buckling resistance and make the better technological effect of wind-powered electricity generation blade compound die effect, the quality of wind-powered electricity generation blade has been improved, security and stability, the time and the expenditure of making the trailing edge web have also been removed from simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a structural diagram of a wind turbine blade according to an embodiment of the present application;
fig. 2 is a structural cross-sectional view of a trailing edge of a wind turbine blade according to an embodiment of the present application.
Icon: 100-wind power blades; 1-an upper shell; 2-a lower shell; 3-filling the space; 200-a trailing edge structure; 4-a core material; 5-first ply; 6-second layering; 7-third ply; 8-clearance; 801-adhesive layer; 9-glue blocking plate; 10-sealing the cavity; 11-anti-wrinkle core material; 12-a fourth ply;
wherein SS in fig. 2 represents the leeward side of the wind turbine blade, and PS represents the windward side of the wind turbine blade.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the embodiments are conventionally placed when used, and are only used for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In a first aspect, an embodiment of the present application provides a trailing edge structure of a wind turbine blade, and it should be noted that the trailing edge structure of the wind turbine blade can be manufactured in a layer laying work section of a shell of the wind turbine blade, and also can be manufactured before mold closing of a mold closing work section of the wind turbine blade, and in this embodiment, the trailing edge structure is manufactured in the layer laying work section of the shell of the wind turbine blade.
Referring to fig. 1 and 2, as shown in fig. 1, a wind turbine blade 100 includes an upper shell 1 and a lower shell 2, a filling space 3 is defined between the upper shell 1 and the lower shell 2, and as shown in fig. 2, a trailing edge structure 200 includes:
the core material 4 is made of balsa wood, polyethylene terephthalate foam, polyvinyl chloride foam and the like, the core material 4 is arranged in the filling space 3 and is positioned on one side close to the blade rear edge of the wind power blade 100 to play a supporting role and meet the requirement of buckling resistance of the blade rear edge, the blade front edge and the blade rear edge refer to the bonding area of the upper shell 1 and the lower shell 2 of the wind power blade, the bonding area of the most front end of the wing profile in the rotating direction is the blade front edge, and the bonding area of the most rear end of the wing profile in the rotating direction is the blade rear edge; the first paving layer 5 is paved on the outer periphery side of the core material 4, and the first paving layer sequentially passes through the vertical surface of the core material 4 close to the trailing edge of the blade, the side of the core material 4 close to the windward side of the blade and the vertical surface of the core material 4 close to the leading edge of the blade from the side of the core material 4 close to the leeward side of the blade during paving and finally returns to the side of the core material 4 close to the leeward side of the blade; the second layer 6 is partially laid on the outer periphery of the first layer 5 and is positioned on one side, close to the trailing edge of the blade, of the core material 4; and the third layer 7 is partially laid on the outer periphery side of the first layer 5 and is positioned on one side of the core material 4 far away from the trailing edge of the blade.
In the implementation process, the first laying layer 5 is laid on the outer periphery of the core material 4 to meet the bonding strength required by the blade trailing edge structure and improve the stability of the blade trailing edge structure, when the second laying layer 6 is laid, the second laying layer 6 is laid according to the bonding width of the trailing edge die-closing seam of a specific blade to ensure the safety of the blade trailing edge structure, when the third laying layer 7 is laid, the strength calculation can be carried out according to the structure, the third laying layer 7 is formed by laying n layers of glass fiber cloth to achieve the strength required by the blade trailing edge buckling resistance, the trailing edge structure of the wind power blade provided by the embodiment of the application solves the problems that the wind power blade is poor in die-closing gap and poor in trailing edge buckling resistance due to poor installation effect when the original trailing edge web is installed due to the fact that the trailing edge web is not provided, and simultaneously when the bonding strength of the trailing edge of the blade is met, the demand of blade trailing edge buckling resistance has been satisfied better, makes wind-powered electricity generation blade compound die effect better, has improved the quality, security and the stability of wind-powered electricity generation blade, has also removed the time and the expenditure of preparation trailing edge web from simultaneously.
In a possible implementation process, a gap 8 is arranged between the first laying layer 5 and the upper shell 1, and the bonding layer 801 is filled in the gap 8; wherein the side of the upper casing 1 facing away from the core 4 is configured as the windward side of the wind turbine blade 100.
In the implementation process, the core material 4 is attached to the lower shell 2, the outer peripheral side of the core material 4 is wrapped by the first laying layer 5, the first laying layer 5 is bonded with the lower shell 2, the bonding layer 801 is filled between the upper shell 1 and the first laying layer 5, the upper shell 1 is bonded with the first laying layer 5, connection between the upper shell 1 and the lower shell 2 is achieved, and then mold closing of the upper shell 1 and the lower shell 2 of the wind power blade is completed.
In a possible implementation process, the trailing edge structure of the wind turbine blade further includes: and one end of the rubber baffle 9 is connected with the upper shell 1, the other end of the rubber baffle 9 is connected with one side of the third paving layer 7 departing from the core material 4, a closed cavity 10 is defined among the rubber baffle 9, the upper shell 1, the first paving layer 5 and the third paving layer 7, and the bonding layer 801 is filled in the closed cavity 10.
In the implementation process, the bonding layer 801 is filled in the closed cavity 10 and is separated from the filling space 103 defined between the upper shell 1 and the lower shell 2 by the glue blocking plate 9, so that the adhesive in the bonding layer 801 is prevented from overflowing to the filling space 103, on one hand, the using amount of the adhesive can be reduced, on the other hand, the clean state of the filling space 103 of the wind power blade can be maintained, and therefore the service life of the blade is prolonged.
In one possible implementation, the trailing edge structure 200 of the wind turbine blade further includes: and the anti-wrinkle core material 11 is attached to one side of the third layer 7, which faces away from the trailing edge of the blade.
In the aforesaid realization in-process, in wind-powered electricity generation blade manufacturing process, carry out whole vacuum operation back of sealing, fold can appear in the layer (the third in this application promptly) of laying in trailing edge auxiliary beam region, and this application sets up crease-resistant core 11 through laying layer 7 in the third and deviating from one side of core 4, utilizes crease-resistant core 11 to the pressure that the regional layer of laying of trailing edge auxiliary beam produced, can effectively avoid the regional layer of laying of trailing edge auxiliary beam to appear the fold.
In a possible implementation process, the trailing edge structure of the wind turbine blade further includes: a fourth layer 12 is laid, the fourth layer 12 is laid on one side of the anti-wrinkle core material 11 deviating from the trailing edge of the blade, one end of the fourth layer 12 upwards extends to be attached to the third layer 7, and the other end of the fourth layer extends towards the direction of the leading edge of the blade close to the wind power blade 100 through one side of the anti-wrinkle core material 11 far away from the trailing edge of the blade.
In the implementation process, when the fourth layer 12 is laid, one end of the fourth layer 12 extends upwards to be attached to one end of the third layer 7, and the other end of the fourth layer 12 extends towards the front edge of the blade to be attached to the other end of the third layer 7, so that the anti-wrinkle core material 11 is sealed in a space formed by the fourth layer 12 and the third layer 7, and the stability of the anti-wrinkle core material 11 is enhanced.
In a possible implementation, the fourth ply 12 extends from the side of the wrinkle-resistant core material 11 away from the trailing edge of the blade to the direction close to the leading edge of the wind turbine blade 100 by a distance in the range of 50mm to 100 mm.
In the implementation process, the fourth ply 12 extends towards the direction close to the front edge of the wind power blade 100 to meet the requirement of edge sealing treatment, the stability of the anti-wrinkle core material 11 is improved, and the extension distance is controlled to be 50-100 mm.
In one possible implementation, the cross-section of the anti-wrinkle core material 11 in the direction perpendicular to the upper and lower shells 1 and 2 is triangular, and the shape of the anti-wrinkle core material 11 is not limited herein, as long as the anti-wrinkle core material 11 can achieve the effect of preventing wrinkles from occurring in the ply of the trailing edge corbel area.
In a possible implementation, the second ply 6 is U-shaped, and the two ends of the second ply 6 are laid on the upper side and the lower side of the first ply 5, respectively.
The third is spread layer 7 and is the Z type, and the third is spread the one end of layer 7 and is laid the upside of laying layer 5, and the other end pastes in proper order and locates first layer 5 and deviates from one side and the lower casing 2 of blade trailing edge to the direction extension setting of keeping away from the blade trailing edge.
The glue blocking plate 9 is L-shaped.
Of course, the shape of the second layer 6 may be a plurality of L-shaped layers stacked one on another, and the plurality of L-shaped layers may be laid on both the upper side and the lower side of the first layer.
In a similar way, the third laying layer 7 can also adopt a mode of stacking and laying a plurality of L-shaped laying layers in different directions, and the technical effects of the application can be realized, so that the third laying layer is within the protection range of the application.
In a possible implementation process, the first laying layer 5, the second laying layer 6, the third laying layer 7 and the rubber baffle plate 9 all comprise multiple layers of glass fiber cloth, and the multiple layers of glass fiber cloth are laid in staggered layers.
The fourth ply 12 is a single layer of fiberglass cloth.
In the implementation process, when the first laying layer 5, the second laying layer 6, the third laying layer 7 and the rubber baffle plate 9 are laid, the multilayer glass fiber cloth is laid in a staggered-layer laying mode, so that the problem of stress concentration caused by stacking of the multilayer glass fiber cloth is avoided.
In a second aspect, as shown in fig. 1, an embodiment of the present application further provides a wind turbine blade, including a trailing edge structure of the wind turbine blade shown in fig. 2.
The wind turbine blade provided in the embodiment of the second aspect of the present application includes the trailing edge structure of the wind turbine blade described in the embodiment of the first aspect, and therefore has the technical effects of any of the above embodiments, which are not described herein again.
To sum up, the trailing edge structure of wind-powered electricity generation blade that this application embodiment provided, fill space through injecing between last casing of wind-powered electricity generation blade and the lower casing in and lay the core near one side of wind-powered electricity generation blade's blade trailing edge, lay first shop of layer at the periphery side of core, lay the second shop of layer near one side periphery of blade trailing edge at the core, it forms the trailing edge structure to lay the third shop of layer at the core one side periphery part of keeping away from the blade trailing edge, when having realized satisfying blade trailing edge bonding strength, better satisfied the anti bucking intensity demand of blade trailing edge and make the better technological effect of wind-powered electricity generation blade compound die effect, the quality of wind-powered electricity generation blade has been improved, security and stability, the time and the expenditure of preparation trailing edge web have also been removed simultaneously.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the scope of the embodiments of the present application. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a trailing edge structure of wind-powered electricity generation blade, wind-powered electricity generation blade includes casing and lower casing, go up the casing with be injectd between the casing down and have filled space, its characterized in that, the trailing edge structure includes:
the core material is arranged in the filling space and is positioned on one side close to the blade trailing edge of the wind power blade;
a first layer laid on an outer peripheral side of the core material;
the second layer is partially laid on the outer periphery of the first layer and is positioned on one side, close to the trailing edge of the blade, of the core material;
and the third layer is partially laid on the outer peripheral side of the first layer and is positioned on one side, far away from the trailing edge of the blade, of the core material.
2. The trailing edge structure of a wind turbine blade according to claim 1,
a gap is formed between the first laying layer and the upper shell, and a bonding layer is filled in the gap;
wherein a side of the upper shell facing away from the core material is configured as a windward side of the wind power blade.
3. The trailing edge structure of a wind turbine blade according to claim 2, further comprising:
and one end of the rubber baffle is connected with the upper shell, the other end of the rubber baffle is connected with one side of the third paving layer, which deviates from the core material, a closed cavity is defined among the rubber baffle, the upper shell, the first paving layer and the third paving layer, and the bonding layer is filled in the closed cavity.
4. The trailing edge structure of a wind turbine blade according to claim 3, further comprising:
the anti-wrinkle core material is attached to one side, away from the trailing edge of the blade, of the third laying layer.
5. The trailing edge structure of a wind turbine blade according to claim 4, further comprising:
the fourth layer of spreading, the fourth layer of spreading is laid the crease-resistant core material deviates from one side of blade trailing edge, just the fourth layer of spreading one end upwards extend to with the third layer of spreading is laminated mutually, and the other end warp crease-resistant core material is kept away from one side of blade trailing edge is close to the direction extension of wind-powered electricity generation blade's blade leading edge.
6. The trailing edge structure of a wind turbine blade according to claim 5,
the fourth layer extends from one side of the anti-wrinkle core material far away from the trailing edge of the blade to the direction close to the leading edge of the wind power blade by a distance of 50 mm-100 mm.
7. The trailing edge structure of a wind turbine blade according to claim 4, wherein the wrinkle-resistant core material has a triangular shape in cross section in a direction perpendicular to the upper shell and the lower shell.
8. The trailing edge structure of a wind turbine blade according to claim 3,
the second layer is U-shaped, and two ends of the second layer are respectively paved on the upper side and the lower side of the first layer; and/or
The third layer is Z-shaped, one end of the third layer is laid on the upper side of the first layer, the other end of the third layer is sequentially attached to one side of the first layer, which is far away from the trailing edge of the blade, and the lower shell, and the third layer extends in the direction far away from the trailing edge of the blade; and/or
The rubber blocking plate is L-shaped.
9. The trailing edge structure of a wind turbine blade according to claim 5,
the first layer, the second layer, the third layer and the rubber baffle plate comprise multiple layers of glass fiber cloth, and the multiple layers of glass fiber cloth are laid in staggered layers; and/or
The fourth layer is a single-layer glass fiber cloth.
10. Wind turbine blade, characterized in that it comprises a trailing edge structure of a wind turbine blade according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121802761.0U CN215762026U (en) | 2021-08-03 | 2021-08-03 | Trailing edge structure of wind power blade and wind power blade |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770959A (en) * | 2022-03-28 | 2022-07-22 | 三一重能股份有限公司 | Filling method for trailing edge of wind power blade |
| CN114770959B (en) * | 2022-03-28 | 2024-07-12 | 三一重能股份有限公司 | Filling method for trailing edge of wind power blade |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770959A (en) * | 2022-03-28 | 2022-07-22 | 三一重能股份有限公司 | Filling method for trailing edge of wind power blade |
| CN114770959B (en) * | 2022-03-28 | 2024-07-12 | 三一重能股份有限公司 | Filling method for trailing edge of wind power blade |
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Effective date of registration: 20231129 Address after: 9th Floor, Block C, Building B6, Dongsheng Science and Technology Park, No. 66 Xixiaokou Road, Haidian District, Beijing, 100192 Patentee after: SINOMATECH WIND POWER BLADE Co.,Ltd. Address before: 222069 Jinqiao Road, Dapu Industrial Zone, Lianyungang, Jiangsu 6 Patentee before: LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GROUP Co.,Ltd. |
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