CN111577530A - Foam filling type blade trailing edge bonding angle and preparation method thereof - Google Patents
Foam filling type blade trailing edge bonding angle and preparation method thereof Download PDFInfo
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- CN111577530A CN111577530A CN202010542223.6A CN202010542223A CN111577530A CN 111577530 A CN111577530 A CN 111577530A CN 202010542223 A CN202010542223 A CN 202010542223A CN 111577530 A CN111577530 A CN 111577530A
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- 239000006260 foam Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 115
- 239000004744 fabric Substances 0.000 claims abstract description 77
- 239000011152 fibreglass Substances 0.000 claims abstract description 62
- 239000003365 glass fiber Substances 0.000 claims abstract description 46
- 239000011247 coating layer Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 13
- 239000011496 polyurethane foam Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 5
- 238000009958 sewing Methods 0.000 claims description 5
- 238000009755 vacuum infusion Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000011521 glass Substances 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000005253 cladding Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000012790 adhesive layer Substances 0.000 description 5
- 230000001788 irregular Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
- B32B38/1833—Positioning, e.g. registration or centering
- B32B38/1841—Positioning, e.g. registration or centering during laying up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a foam filling type blade trailing edge bonding angle and a preparation method thereof, wherein the foam filling type blade trailing edge bonding angle comprises the following steps: the foam is matched with the shape of the inner cavity of the bonding angle area of the rear edge of the blade and is used for filling the bonding angle of the rear edge of the blade; the coating layer is sleeved outside the foam; the glass fiber reinforced plastic bonding layer is sleeved outside the coating layer and the foam; and the positioning layer is arranged between the glass fiber reinforced plastic bonding layer and the SS surface shell, and air among the positioning layer, the glass fiber reinforced plastic bonding layer and the coating layer is extracted through the vacuumizing auxiliary material so that the positioning layer, the glass fiber reinforced plastic bonding layer and the coating layer are smoothly attached to the outside of the foam. The invention has the advantages of optimized structure, convenient molding, good molding following property and lower cost; the manufacturing of the rear edge bonding angle is carried out by adopting a foam filling method, a bonding angle mould is not needed, the glass fiber cloth is easy to lay and adjust, is easy to paste and is simple and convenient to operate; the bonding angle can be accurately positioned, the phenomenon of resin enrichment between the die assembly platform and the bonding angle is avoided, the bonding angle is prevented from wrinkling or collapsing, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of wind driven generator manufacturing equipment, in particular to a foam filling type blade trailing edge bonding angle and a preparation method thereof.
Background
When the rear edge of the wind power blade shell is bonded, a rear edge bonding angle is firstly prepared at partial positions, and then an adhesive is scraped on the bonding angle to complete die assembly bonding. The manufacturing method of the rear edge bonding angle comprises two methods, one is to paste the adhesive before die assembly, and the other is to lay and pour the adhesive and the shell body together.
The inner cavity of the rear edge of the existing wind power blade is irregular and has large variation. The radian of part of the position is larger, the section of the inner cavity of the part is close to an omega shape, namely, a structure with a large inner cavity and a small opening is formed. If a male die is used for manufacturing, the die is not easy to take out after the bonding angle at the rear edge is formed, so that the bonding angle at the position is mainly prepared by a female die. However, when the female die is adopted for manufacturing, the cloth layer is not easy to be tightly attached to the tool, the defects of folds, steps and the like are easy to occur, the positioning accuracy of the bonding angle is greatly influenced by human, the bonding gap cannot be effectively controlled, and the bonding quality is further influenced. Meanwhile, with the change of the profile of the trailing edge, the height of the inner cavity at partial position is reduced, and the section of the inner cavity is a narrow and flat cavity which is close to a V shape. If the female die is adopted for manufacturing, the space is too small, a hand cannot stretch into the female die, the bonding angle is easy to wrinkle or collapse, rework is needed, and the problem that the die is not easy to take out still exists if a male die is used for manufacturing.
Disclosure of Invention
The invention aims to provide a foam filling type blade trailing edge bonding angle which is optimized in structure and convenient to form.
In order to achieve the purpose, the specific technical scheme of the foam filling type blade trailing edge bonding angle and the preparation method is as follows:
a foam-filled bucket trailing edge bond angle comprising: the foam is matched with the shape of the inner cavity of the bonding angle area of the rear edge of the blade and is used for filling the bonding angle of the rear edge of the blade; the coating layer is sleeved outside the foam; the glass fiber reinforced plastic bonding layer is sleeved outside the coating layer and the foam; and the positioning layer is arranged between the glass fiber reinforced plastic bonding layer and the SS surface shell, and air among the positioning layer, the glass fiber reinforced plastic bonding layer and the coating layer is extracted through the vacuumizing auxiliary material so that the positioning layer, the glass fiber reinforced plastic bonding layer and the coating layer are smoothly attached to the outside of the foam.
A preparation method of a foam filled type blade trailing edge bonding angle comprises the following steps: step one, stacking a coating layer, a glass fiber reinforced plastic bonding layer and a positioning layer in a staggered manner in sequence to form a glass fiber cloth whole; sewing a coating layer, a glass fiber reinforced plastic bonding layer and a positioning layer from the center of the whole width of the glass fiber reinforced plastic bonding layer; laying an SS surface shell, a positioning layer, a glass fiber reinforced plastic bonding layer and a coating layer; placing foam on the inner side of the positioned glass fiber cloth, turning the glass fiber cloth above the foam to the inner side of the shell, and sticking the coating layer and the foam firmly, wherein the glass fiber reinforced plastic bonding layer and the glass fiber cloth of the coating layer firmly; laying vacuum auxiliary materials, and extracting air in the whole glass fiber cloth; and sixthly, performing vacuum infusion and pre-curing on the blade SS surface shell and the foam-filled rear edge bonding angle, and integrally forming to obtain the blade SS surface shell and the foam-filled rear edge bonding angle.
The foam filling type blade trailing edge bonding angle and the preparation method thereof have the advantages that:
1) the structure is optimized, the forming is convenient, the forming following performance is good, and the cost is lower;
2) the manufacturing of the rear edge bonding angle is carried out by adopting a foam filling method, a bonding angle mould is not needed, the glass fiber cloth is easy to lay and adjust, is easy to paste and is simple and convenient to operate;
3) the adhesive angle can be accurately positioned, the resin-rich phenomenon between the die assembly platform and the adhesive angle is avoided, the adhesive angle is prevented from wrinkling or collapsing, and the maintenance cost is reduced;
4) the rear edge bonding angle can change along with the change of the shape of the rear edge cavity of the blade, has good shape following performance, is suitable for irregular rear edge cavities of the blade, can effectively control the bonding gap, and improves the bonding quality of the bonding angle area;
5) and the blade is integrally poured and formed with the shell, so that the mold occupying time is reduced, and the production efficiency of the blade is improved.
Drawings
FIG. 1 is a schematic view of the overall construction of the trailing edge bond angle of the foam-filled bucket of the present invention.
In the figure: 1. a polyurethane foam; 2. a coating layer; 3. a glass fiber reinforced plastic bonding layer; 4. a positioning layer; 5. and (4) an SS face shell.
Detailed Description
For a better understanding of the objects, structure and function of the invention, a foam-filled blade trailing edge bond angle and method of making the same according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the invention is a foam-filled blade trailing edge bonding angle, which comprises foam, a coating layer 2, a trailing edge bonding angle 3 and a positioning layer 4. Air among the positioning layer 4, the glass fiber reinforced plastic bonding layer 3 and the coating layer 2 is extracted through the auxiliary vacuum-pumping material, so that the positioning layer 4, the glass fiber reinforced plastic bonding layer 3 and the coating layer 2 are smoothly attached to the outside of the foam.
Further, it is preferable that the foam is a polyurethane foam material, and the bonding angle of the rear edge of the blade is filled by foaming, so as to fill a certain cavity, and the polyurethane foam 1 using the polyurethane material is taken as an example in the present invention, but not limited to polyurethane. The shape of the polyurethane foam 1 is matched with the shape of an inner cavity of a bonding angle area of the rear edge of the blade; specifically, the shape of the polyurethane foam 1 is matched with the contour line of the inner cavity of the glass fiber reinforced plastic bonding layer 3, and the chordwise width of the foam 1 is slightly wider than the designed width of the glass fiber reinforced plastic bonding layer 3, so that the foam is used for supporting the glass fiber reinforced plastic bonding layer 3 and can effectively prevent the bonding angle from deforming or collapsing.
Further, the coating layer 2 is sleeved outside the foam (polyurethane foam 1), a layer of biaxial cloth is arranged in the invention and used for wrapping the foam 1, and the length of the coating layer 2 is slightly longer than that of the longest cloth layer of the glass fiber reinforced plastic bonding layer 3 so as to wrap the polyurethane foam 1 completely and prevent the polyurethane foam 1 from being exposed.
Further, the glass fiber reinforced plastic adhesive layer 3 is sleeved outside the coating layer 2 and the foam (polyurethane foam 1), the glass fiber reinforced plastic adhesive layer 3 comprises a triaxial cloth and a biaxial cloth (preferably one layer of triaxial cloth and five layers of biaxial cloth), and the 0 ° yarn of the triaxial cloth faces to the inner side (close to the coating layer 2), but is not limited thereto. The glass fiber cloth of the glass fiber reinforced plastic bonding layer 3 is closely attached to the outer positioning layer 4, namely, one half of the glass fiber cloth is closely attached, the other half of the glass fiber cloth forms a bonding surface, and after the glass fiber cloth is coated with mold glue in a scraping mode, the glass fiber cloth is used for bonding the shell.
Furthermore, the positioning layer 4 is located between the glass fiber reinforced plastic bonding layer 3 and the SS surface shell 5, the positioning layer 4 is arranged on the outer side of the glass fiber reinforced plastic bonding layer 3, a layer of triaxial cloth is adopted, the width of the positioning layer 4 is slightly wider than that of the glass fiber cloth of the glass fiber reinforced plastic bonding layer 3, the length of the positioning layer 4 is the same as that of the shortest cloth layer of the glass fiber reinforced plastic bonding layer 3, the glass fiber cloth of the positioning layer 4 is closely attached to the external SS surface shell 5, namely, half of the glass fiber cloth is closely attached to the SS surface shell 5, and the part (the other half) which is not closely attached is used for accurately positioning and fixing the whole glass fiber cloth on the flange of the.
The invention also discloses a preparation method of the foam filling type blade trailing edge bonding angle, which comprises the following steps:
step one, stacking a plurality of required glass fiber cloth layers in a staggered manner, sequentially arranging biaxial cloth of a coating layer 2, biaxial cloth of a glass fiber reinforced plastic bonding layer 3, triaxial cloth of the glass fiber reinforced plastic bonding layer 3 and triaxial cloth of a positioning layer 4 to form a glass fiber cloth whole, wherein 0-degree yarns of the triaxial cloth of the glass fiber reinforced plastic bonding layer 3 face downwards, and the direction of the triaxial cloth of the positioning layer 4 is not required.
Specifically, when the glass fiber cloth of the glass fiber reinforced plastic adhesive layer 3 is laminated in a staggered manner, the glass fiber cloth is staggered by 4mm to 6mm (preferably 5mm) in the width direction and 50mm to 70mm in the length direction. The coating layer 2 and the positioning layer 4 are respectively paved on the inner side and the outer side of the glass fiber reinforced plastic bonding layer 3, the glass fiber reinforced plastic bonding layer 3 is paved in a width mode in an aligned mode on one side of a cloth layer, and the positioning layer 4 is placed on the three-axis cloth side of the glass fiber reinforced plastic bonding layer 3.
And step two, sewing all glass fiber cloth (comprising a coating layer 2, a glass fiber reinforced plastic bonding layer 3 and a positioning layer 4) from the center of the whole width of the glass fiber reinforced plastic bonding layer.
Specifically, the center line is sewn with reference to the width centers of all the cloth layers of the glass fiber reinforced plastic adhesive layer 3. The preferable sewing thread adopts cotton thread with prominent color, which is beneficial to the accurate positioning of the bonding angle cloth layer.
And thirdly, paving the SS surface shell 5, the positioning layer 4, the glass fiber reinforced plastic bonding layer 3 and the coating layer 2.
Specifically, after the SS surface shell 5 is laid according to the blade laying process, the sewn glass fiber cloth of the covering layer 2, the glass fiber reinforced plastic bonding layer 3 and the positioning layer 4 is laid. When laying, the central line of the sewing cloth layer is flush with the parting line of the blade shell rear edge mould, and the glass fiber cloth of the positioning layer 4 faces the SS surface shell 5. And (3) tightly attaching half of the glass fiber cloth of the positioning layer to the SS surface shell 5, and turning the other half of the glass fiber cloth to the flange edge of the blade mould to complete the positioning of the whole glass fiber cloth (the coating layer 2, the glass fiber reinforced plastic bonding layer 3 and the positioning layer 4).
And fourthly, placing foam (polyurethane foam 1) on the inner side of the positioned whole glass fiber cloth, then turning the glass fiber cloth above the foam towards the inner side of the shell, so that the glass fiber cloth of the coating layer 2 is tightly attached to the polyurethane foam 1, the polyurethane foam 1 is completely wrapped, and the glass fiber reinforced plastic bonding layer 3 is tightly attached to the glass fiber cloth of the coating layer 2, so that the glass fiber cloth is flat and has no wrinkles.
And fifthly, laying vacuum auxiliary materials, including auxiliary materials such as demolding cloth, an isolation film, a flow guide net, a spiral exhaust pipe, a vacuum bag film and the like.
Specifically, the demolding cloth covers the whole bonding surface of the glass fiber reinforced plastic bonding layer 3, is slightly wider than the bonding surface of the glass fiber reinforced plastic bonding layer 3, and is used for wrapping the spiral exhaust pipe. The width of the isolation film is equal to that of the diversion net, and the isolation film is flush with or slightly narrow than the bonding surface of the glass fiber reinforced plastic bonding layer 3 according to the glue injection condition. The spiral exhaust pipe is arranged at the top end of the glass fiber reinforced plastic bonding layer 3 and the position where the resin is soaked at the latest. In addition, double-layer vacuum bag films are adopted for pressure maintaining, a flow guide net is placed between the two layers of bag films in a zigzag manner, and allowance is reserved to prevent the bag films from being stretched and cracked. In addition, when the vacuum pressure is maintained, it is necessary to check whether the foam-filled glass fiber reinforced plastic adhesive layer 3 is displaced.
And sixthly, performing vacuum infusion and pre-curing on the blade SS face shell 5 and the foam-filled rear edge bonding angle, and integrally forming to obtain the blade SS face shell 5 and the foam-filled rear edge bonding angle.
The foam filling type blade trailing edge bonding angle and the preparation method thereof have the advantages of optimized structure, convenience in molding, good shape following property and lower cost; the manufacturing of the rear edge bonding angle is carried out by adopting a foam filling method, a bonding angle mould is not needed, the glass fiber cloth is easy to lay and adjust, is easy to paste and is simple and convenient to operate; the adhesive angle can be accurately positioned, the resin-rich phenomenon between the die assembly platform and the adhesive angle is avoided, the adhesive angle is prevented from wrinkling or collapsing, and the maintenance cost is reduced; the rear edge bonding angle can change along with the change of the shape of the rear edge cavity of the blade, has good shape following performance, is suitable for irregular rear edge cavities of the blade, can effectively control the bonding gap, and improves the bonding quality of the bonding angle area; and the blade is integrally poured and formed with the shell, so that the mold occupying time is reduced, and the production efficiency of the blade is improved.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (10)
1. A foam-filled bucket trailing edge bond angle comprising:
the foam is matched with the shape of the inner cavity of the bonding angle area of the rear edge of the blade and is used for filling the bonding angle of the rear edge of the blade;
the coating layer (2) is sleeved outside the foam;
the glass fiber reinforced plastic bonding layer (3) is sleeved outside the coating layer (2) and the foam; and
location layer (4), set up between glass steel adhesive linkage (3) and SS face casing (5), assist the air between material extraction location layer (4), glass steel adhesive linkage (3) and coating (2) through the evacuation to make location layer (4), glass steel adhesive linkage (3) and coating (2) level and smooth the outside of pasting in the foam.
2. The foam-filled blade trailing edge bonding angle of claim 1, further comprising a vacuum-pumping auxiliary material for pumping air from the cladding layer (2), the glass fiber reinforced plastic bonding layer (3) and the positioning layer (4) to keep the fiberglass cloth smooth and firm.
3. The foam-filled blade trailing edge bonding corner according to claim 1, characterized in that the width of the positioning layer (4) is wider than the width of the glass fiber cloth of the glass fiber reinforced plastic bonding layer (3).
4. The foam-filled blade trailing edge bonding corner according to claim 1, characterized in that the foam is a polyurethane foam (1).
5. The foam-filled blade trailing edge bonding corner of claim 1, characterized in that the fiberglass cloth of the positioning layer (4) is partially attached to the SS face shell (5), and the non-attached part is used for positioning and fixing the fiberglass cloth of the glass fiber reinforced plastic bonding layer (3) on the blade mold flange edge.
6. A preparation method of a foam filled type blade trailing edge bonding angle is characterized by comprising the following steps:
step one, stacking a coating layer (2), a glass fiber reinforced plastic bonding layer (3) and a positioning layer (4) in a staggered manner in sequence to form a glass fiber cloth whole body;
sewing a coating layer (2), a glass fiber reinforced plastic bonding layer (3) and a positioning layer (4) from the center of the whole width of the glass fiber reinforced plastic bonding layer;
thirdly, paving an SS surface shell (5), a positioning layer (4), a glass fiber reinforced plastic bonding layer (3) and a coating layer (2);
placing foam on the inner side of the positioned glass fiber cloth, turning the glass fiber cloth above the foam to the inner side of the shell, and firmly attaching the coating layer (2) to the foam, and firmly attaching the glass fiber reinforced plastic bonding layer (3) to the glass fiber cloth of the coating layer (2);
laying vacuum-pumping auxiliary materials, and pumping air in the whole glass fiber cloth;
and sixthly, performing vacuum infusion and pre-curing on the blade SS surface shell (5) and the foam-filled rear edge bonding angle, and integrally forming to obtain the blade SS surface shell (5) and the foam-filled rear edge bonding angle.
7. The method for preparing the bonding angle of the rear edge of the foam-filled blade as claimed in claim 6, wherein in step one, the biaxial cloth of the covering layer (2), the biaxial cloth of the glass fiber reinforced plastic bonding layer (3) and the biaxial cloth of the positioning layer (4) are sequentially and alternately stacked.
8. The method for preparing the bonding angle of the rear edge of the foam-filled blade as claimed in claim 7, wherein when the glass fiber cloth of the glass fiber reinforced plastic bonding layer (3) is sequentially laminated in a staggered manner, the glass fiber cloth is laminated in a staggered manner by 4mm to 6mm in the width direction and 50mm to 70mm in the length direction.
9. The method for preparing the rear edge bonding angle of the foam-filled blade as claimed in claim 6, wherein in the second step, the center line is sewn based on the width centers of all cloth layers of the glass fiber reinforced plastic bonding layer (3).
10. The preparation method of the rear edge bonding angle of the foam filling type blade according to the claim 6 is characterized in that in the third step, after the shell (5) is laid according to the blade laying process, the glass fiber cloth of the sewed coating layer (2), the glass fiber reinforced plastic bonding layer (3) and the positioning layer (4) is laid, and the central line of the sewed cloth layer is aligned with the parting line of the rear edge mold of the blade shell when the glass fiber cloth is laid; the glass fiber cloth of the positioning layer (4) faces the SS surface shell (5); and (3) sticking half of the glass fiber cloth of the positioning layer with the SS surface shell (5) firmly, and turning the other half of the glass fiber cloth to the flange edge of the blade mould to complete the integral positioning of the glass fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677378A (en) * | 2020-12-11 | 2021-04-20 | 连云港中复连众复合材料集团有限公司 | Preparation method of prefabricated pasting angle of fan blade trailing edge and male die for preparation |
| CN116061351A (en) * | 2022-12-05 | 2023-05-05 | 中复连众（哈密）复合材料有限公司 | Manufacturing method of novel megawatt wind power generation blade trailing edge pasting angle die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791543A (en) * | 2017-10-30 | 2018-03-13 | 国电联合动力技术有限公司 | Trailing edge bonding angle formpiston preparation method and trailing edge bonding angle preparation method |
| EP3396155A1 (en) * | 2017-04-27 | 2018-10-31 | Senvion GmbH | Rotor blade of a wind turbine and method for manufacturing same, termination bridge of a rotor blade and use of same |
| CN209141488U (en) * | 2018-07-26 | 2019-07-23 | 国电联合动力技术(连云港)有限公司 | A kind of rear edge of wind turbine blade bonding angle molding machine |
| CN209141489U (en) * | 2018-08-30 | 2019-07-23 | 国电联合动力技术(连云港)有限公司 | A kind of blade inlet edge bonding angle mold |
| CN110733187A (en) * | 2019-11-22 | 2020-01-31 | 国电联合动力技术(保定)有限公司 | A method for adjusting the clamping gap in the direct bonding area of the trailing edge of a wind turbine blade |
| CN212360010U (en) * | 2020-06-15 | 2021-01-15 | 国电联合动力技术(保定)有限公司 | Foam filling type blade trailing edge bonding angle |
-
2020
- 2020-06-15 CN CN202010542223.6A patent/CN111577530A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3396155A1 (en) * | 2017-04-27 | 2018-10-31 | Senvion GmbH | Rotor blade of a wind turbine and method for manufacturing same, termination bridge of a rotor blade and use of same |
| CN107791543A (en) * | 2017-10-30 | 2018-03-13 | 国电联合动力技术有限公司 | Trailing edge bonding angle formpiston preparation method and trailing edge bonding angle preparation method |
| CN209141488U (en) * | 2018-07-26 | 2019-07-23 | 国电联合动力技术(连云港)有限公司 | A kind of rear edge of wind turbine blade bonding angle molding machine |
| CN209141489U (en) * | 2018-08-30 | 2019-07-23 | 国电联合动力技术(连云港)有限公司 | A kind of blade inlet edge bonding angle mold |
| CN110733187A (en) * | 2019-11-22 | 2020-01-31 | 国电联合动力技术(保定)有限公司 | A method for adjusting the clamping gap in the direct bonding area of the trailing edge of a wind turbine blade |
| CN212360010U (en) * | 2020-06-15 | 2021-01-15 | 国电联合动力技术(保定)有限公司 | Foam filling type blade trailing edge bonding angle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677378A (en) * | 2020-12-11 | 2021-04-20 | 连云港中复连众复合材料集团有限公司 | Preparation method of prefabricated pasting angle of fan blade trailing edge and male die for preparation |
| CN112677378B (en) * | 2020-12-11 | 2023-04-28 | 连云港中复连众复合材料集团有限公司 | Preparation method of prefabricated pasting angle of rear edge of fan blade |
| CN116061351A (en) * | 2022-12-05 | 2023-05-05 | 中复连众（哈密）复合材料有限公司 | Manufacturing method of novel megawatt wind power generation blade trailing edge pasting angle die |
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