CN114654624A - Blade root base circle reinforcing die for wind power blade molding and preparation method thereof - Google Patents
Blade root base circle reinforcing die for wind power blade molding and preparation method thereof Download PDFInfo
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- CN114654624A CN114654624A CN202210326347.XA CN202210326347A CN114654624A CN 114654624 A CN114654624 A CN 114654624A CN 202210326347 A CN202210326347 A CN 202210326347A CN 114654624 A CN114654624 A CN 114654624A
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- root base
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000000465 moulding Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 239000004744 fabric Substances 0.000 claims abstract description 38
- 239000003365 glass fiber Substances 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 239000006260 foam Substances 0.000 claims abstract description 16
- 241000771208 Buchanania arborescens Species 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 240000007182 Ochroma pyramidale Species 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 13
- 239000005020 polyethylene terephthalate Substances 0.000 description 13
- 230000005611 electricity Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007774 longterm Effects 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
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/386—Automated tape laying [ATL]
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
- B29C2033/385—Manufacturing moulds, e.g. shaping the mould surface by machining by laminating a plurality of layers
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a blade root base circle reinforcing die for wind power blade molding and a preparation method thereof; the method comprises the following steps: at least two layers of glass fiber cloth are laid on the template, an aluminum net is additionally arranged between the glass fiber cloth, resin is poured, and the aluminum net is solidified to obtain a base layer; laying at least two layers of glass fiber cloth on the base layer, additionally arranging a light wood layer or a PET foam layer between the glass fiber cloth, pouring resin, and curing to form an outer structure layer on the base layer; laying at least two layers of glass fiber cloth on the outer structure layer, transversely and longitudinally laying steel pipes between the glass fiber cloth, pouring resin, curing and forming a reinforcing layer on the outer structure layer; the template is removed, the steel pipe in the reinforcing layer is connected with a steel frame which is covered outside the reinforcing layer through a height adjusting mechanism, the obtained blade root base circle reinforcing mold can prevent the blade root base circle from shrinking and deforming in the forming process, the quality of the obtained product is ensured, and meanwhile, the manufacturing cost is low.
Description
Technical Field
The invention relates to the technical field of wind power blade molds, in particular to a blade root base circle reinforcing mold for wind power blade molding and a preparation method thereof.
Background
The blade root position of wind-powered electricity generation blade is one of the core structure position of blade, and this position has the bolt cover of pre-buried or drilling to be used for being connected with the fan, consequently requires highly to the stability of blade root base circle size, and the important factor that influences wind-powered electricity generation blade root base circle stability is the stability of wind-powered electricity generation blade mould blade root base circle.
The blade mould is glass steel composite material structure, and current wind-powered electricity generation blade mould is at the mould upset in-process, and the main part of wind-powered electricity generation blade mould and blade root base circle very easily lead to distortion or even fracture, influence the quality of blade. Another reason is that temperature has a greater influence on the glass fiber reinforced plastic structure. Meanwhile, the blade mold can shrink during curing, and the deformation and other problems can occur under long-term use conditions.
Therefore, in order to solve the above problems, the present invention urgently needs to provide a blade root base circle reinforcing mold for wind turbine blade molding and a preparation method thereof.
Disclosure of Invention
The invention aims to provide a preparation method of a blade root base circle reinforcing mold for wind power blade forming and the blade root base circle reinforcing mold, and solves the technical problems that in the prior art, the main body and the blade root base circle of the wind power blade mold are easy to distort and even break and the quality of the blade is influenced during the mold turning process of the wind power blade mold.
The invention provides a preparation method of a blade root base circle reinforcing die for forming a wind power blade, which comprises the following steps:
laying at least two layers of glass fiber cloth on the template, additionally arranging an aluminum net between the glass fiber cloth, pouring resin, and curing to obtain a base layer;
laying at least two layers of glass fiber cloth on the base layer, additionally arranging a light wood layer or a PET foam layer between the glass fiber cloth, pouring resin, and curing to form an outer structure layer on the base layer;
laying at least two layers of glass fiber cloth on the outer structure layer, transversely and longitudinally laying steel pipes between the glass fiber cloth, pouring resin, curing and forming a reinforcing layer on the outer structure layer;
and removing the template, and connecting the steel pipe in the reinforcing layer with a steel frame covering the outside of the reinforcing layer through a height adjusting mechanism to obtain the blade root base circle reinforcing mold.
Preferably, a steel plate extending towards the lateral direction of the blade root base circle reinforcing mold is additionally arranged at the bottom end of the blade root base circle reinforcing mold.
Preferably, the height adjusting mechanism comprises a screw rod welded with the steel pipe, a fixing plate penetrates through the screw rod, the screw rod is connected with the fixing plate through an adjustable nut, and a connecting plate is bent upwards at one end of the fixing plate.
Preferably, the fixing device further comprises reinforcing plates which are respectively arranged on two sides of the connecting plate, and the top ends of the reinforcing plates are connected with the lower end faces of the fixing plates.
Preferably, the steel pipe is a square pipe having a size of 40X 60 (3-5) mm or 50X 50 (3-5) mm; 3 rows of square pipes are arranged at intervals along the radial direction of the outer structural layer, and the distance between every two adjacent square steel pieces is 20-30 cm; 7-9 rows of square pipes are arranged at intervals along the longitudinal direction of the outer structure layer, and the distance between every two adjacent square pipes is 50-60 cm.
Preferably, the height of the blade root base circle reinforcing mould is 1-1500 mm.
Preferably, the outer structure layer is six glass fiber cloth layers, and a balsa wood layer or a PET foam layer is arranged between the third layer and the fourth layer of the outer structure layer.
Preferably, a balsa wood layer is arranged between the third layer and the fourth layer of the outer structure layer, and the chamfer angle around the balsa wood layer is 45-60 degrees; the thickness of the balsa blanket is 16-20 mm; the light wood layer is made of balsa wood.
Preferably, the resin is one of epoxy resin, vinyl resin and polyester resin, the thickness of the iron plate is 8mm, the width of the iron plate is 100mm, and the iron plate is in a semi-circular arc shape; the thickness of the base layer is 8-12 mm; the thickness of the outer structure layer is 24-35 mm.
The invention also provides a blade root base circle reinforcing mold obtained based on the preparation method of the blade root base circle reinforcing mold for wind power blade molding, which comprises a base layer, an outer structural layer, a reinforcing layer and a steel frame in sequence from inside to outside, wherein a balsa wood layer or a PET (polyethylene terephthalate) foam layer is arranged between the outer structural layers, steel pipes are transversely and longitudinally arranged between the reinforcing layers, and the steel pipes are connected with the steel frame covering the reinforcing layers through a height adjusting mechanism.
Compared with the prior art, the blade root base circle reinforcing die for wind power blade forming and the preparation method thereof provided by the invention have the following advantages:
1. according to the preparation method of the blade root base circle reinforcing mold for forming the wind power blade, the light wood layer or the PET foam layer is added in the outer structure layer according to the size of the mold, the steel pipe is added in the reinforcing layer, and the reinforcing layer is connected with the steel frame by the height adjusting mechanism, so that a multi-layer composite structure is formed, the reinforcing effect of the blade root base circle reinforcing mold is improved, and the stability of the prepared blade root base circle is ensured. Meanwhile, the blade root base circle reinforcing die can prevent the blade root base circle from shrinking and deforming, ensure the quality of obtained products and improve the market competitiveness of the wind power blade die.
2. According to the preparation method of the blade root base circle reinforcing die for wind power blade forming, the cost for manufacturing the die is reduced by selecting the balsa wood layer or the PET foam layer and the steel pipe.
3. According to the manufacturing method of the blade root base circle reinforcing mold for wind power blade forming, the height adjusting mechanism comprises a screw rod welded with the steel pipe, the screw rod is provided with the fixing plate in a penetrating mode, the screw rod is connected with the fixing plate through the adjustable nut, and the connecting plate is bent upwards at one end of the fixing plate.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view (perspective view) of a blade root base circle reinforcing mold according to the present invention;
FIG. 2 is a schematic view of a blade root base circle reinforcing mold according to the present invention (without a steel frame);
FIG. 3 is a schematic view of the height adjustment mechanism of the present invention;
fig. 4 is a schematic structural view (sectional view) of a blade root base circle reinforcing mold according to the present invention.
Description of reference numerals:
1. a base layer; 2. an outer structural layer; 3. a reinforcement layer; 4. a steel frame; 5. a steel plate; 6. a screw; 7. a fixing plate; 8. an adjustable nut; 9. a connecting plate; 10. and a reinforcing plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, the present embodiment provides a method for manufacturing a blade root base circle reinforcing mold for wind turbine blade molding, including the following steps:
s1) laying at least two layers of glass fiber cloth on the template, additionally arranging an aluminum net between the glass fiber cloth, pouring resin, and curing to obtain a base layer 1;
s2) laying at least two layers of glass fiber cloth on the base layer 1, additionally arranging a light wood layer or a PET foam layer between the glass fiber cloth, pouring resin, and curing to form an outer structure layer 2 on the base layer 1;
s3) laying at least two layers of glass fiber cloth on the outer structural layer 2, transversely and longitudinally laying steel pipes between the glass fiber cloth, pouring resin, and curing to form a reinforcing layer 3 on the outer structural layer 2;
s4) removing the template, and connecting the steel pipe in the reinforcing layer 3 with a steel frame 4 covering the reinforcing layer 3 through a height adjusting mechanism to obtain the blade root base circle reinforcing mold.
According to the size of the die, a light wood layer or a PET foam layer is added in the outer structural layer 2, a steel pipe is added in the reinforcing layer 3, and the reinforcing layer 3 is connected with the steel frame 4 by using the height adjusting mechanism, so that the blade root base circle reinforcing die with a multi-layer composite structure is formed, the reinforcing effect of the blade root base circle reinforcing die is improved, and the stability of the prepared blade root base circle is ensured. Meanwhile, the blade root base circle reinforcing die can prevent the blade root base circle from shrinking and deforming, improve the stability of the die, ensure the quality of obtained products and improve the market competitiveness of the blade die.
The template of the invention is a semicircular plate.
According to the invention, the cost for manufacturing the blade root base circle reinforcing die is reduced by selecting the light wood layer or the PET foam layer and the steel pipe.
As shown in fig. 1, in this embodiment, a steel plate 5 extending in a lateral direction is added to the bottom end of the blade root base circle reinforcing mold to reinforce the blade root base circle reinforcing mold, so as to improve the overall rigidity of the mold and prevent deformation.
The included angle between the steel plate 5 and the reinforcing layer 3 is 90 degrees.
As shown in fig. 3, the height adjusting mechanism of the present embodiment includes a screw rod 6 welded to the steel pipe, a fixing plate 7 is installed on the screw rod 6 in a penetrating manner, the screw rod 6 is connected to the fixing plate 7 through an adjustable nut 8, and a connecting plate 9 is bent upward at one end of the fixing plate 7.
According to the invention, the height adjusting mechanism comprises a screw rod 6 welded with the steel pipe, a fixing plate 7 is arranged on the screw rod 6 in a penetrating manner, the screw rod 6 is connected with the fixing plate 7 through an adjustable nut 8, and a connecting plate 9 is bent upwards at one end of the fixing plate 7, so that the blade root base circle reinforcing mold can be detachably connected with the steel frame, the position height can be conveniently adjusted, and the operation is convenient.
As shown in fig. 3, the present embodiment further includes reinforcing plates 10 respectively disposed at both sides of the connecting plate 9, and top ends of the reinforcing plates 10 are connected to lower end surfaces of the fixing plates 7.
The invention adopts the reinforcing plates 10 on both sides of the connecting plate 9, and the design that the top ends of the reinforcing plates 10 are connected with the lower end surface of the fixing plate 7 improves the rigidity of the connecting plate 9 and reinforces the connecting plate 9.
The steel pipe is a square pipe, and the size of the square pipe is 40 multiplied by 60 multiplied by (3-5) mm or 50 multiplied by (3-5) mm; preferably, the square tube of the present embodiment has a size of 40 × 60 × 5 mm.
In the invention, 3 rows of square pipes are arranged at intervals along the semi-circumference of the outer structural layer 102, the distance between two adjacent square steel pieces is 20-30cm, and preferably, the distance between two adjacent square steel pieces is 25 cm; 7-9 rows of square pipes are arranged at intervals along the longitudinal direction of the outer structural layer 102, preferably 8 rows of square pipes are arranged, the distance between every two adjacent square pipes is 50-60cm, and the distance between every two adjacent square pipes is preferably 55 cm.
The height of the blade root base circle reinforcing die is 1-1500mm, and the integral height is adjusted according to the prepared blade root base circle.
The outer structure layer 102 of the invention is six glass fiber cloth layers, and a balsa wood layer or a PET foam layer is arranged between the third layer and the fourth layer of the outer structure layer 102; preferably, a balsa wood layer is arranged between the third layer and the fourth layer of the outer structure layer 102, and the chamfer angle around the balsa wood layer is 45-60 degrees, preferably 50 degrees; the thickness of the balsa layer is 16-20mm, preferably 18 mm; the light wood layer is made of balsa wood.
The resin of the present invention is one of epoxy resin, vinyl resin and polyester resin, and preferably epoxy resin.
The iron plate of the invention has the thickness of 8mm and the width of 100mm, and is in a semi-circular arc shape.
The base layer 101 of the present invention has a thickness of 8 to 12mm, preferably 10 mm.
The thickness of the outer structural layer 102 of the present invention is 24-35mm, and preferably, the thickness of the outer structural layer 102 is 30 mm.
As shown in fig. 1, 2 and 3, the present embodiment further provides a blade root base circle reinforcing mold obtained based on the preparation method of the blade root base circle reinforcing mold for wind turbine blade molding, which includes a base layer 1, an outer structure layer 2, a reinforcing layer 3 and a steel frame 4 sequentially from inside to outside, a balsa blanket or a PET foam layer is arranged between the outer structure layers 2, steel pipes are transversely and longitudinally arranged on the reinforcing layer 3, and the steel pipes are connected with the steel frame 4 covering the reinforcing layer 3 through a height adjusting mechanism.
According to the invention, the light wood layer or the PET foam layer is added in the outer structural layer 2 according to the size of the die, the steel pipe is added in the reinforcing layer 3, and the reinforcing layer 3 is connected with the steel frame 4 by using the height adjusting mechanism, so that a multi-layer composite structure is formed, the reinforcing effect of the die for reinforcing the blade root base circle is improved, and the stability of the prepared blade root base circle is ensured. Meanwhile, the blade root base circle reinforcing die can prevent the blade root base circle from shrinking and deforming, ensure the quality of obtained products and improve the market competitiveness of blade dies.
The invention reduces the cost of manufacturing the die by selecting the light wood layer or the PET foam layer and the steel pipe.
As shown in fig. 1, in this embodiment, a steel plate 5 extending in the lateral direction is annularly arranged at the bottom end of the blade root base circle reinforcing mold to reinforce the blade root base circle reinforcing mold, so as to improve the rigidity of the entire mold.
As shown in fig. 4, the base layer 1 of the present embodiment includes two layers of glass fiber cloth a101, and an aluminum mesh 102 is disposed between the two layers of glass fiber cloth; the outer structure layer 2 comprises four layers of glass fiber cloth B201, and a balsa blanket 202 is arranged between the third layer of glass fiber cloth B201 and the fourth layer of glass fiber cloth B201; the reinforcing layer 3 comprises three layers of glass fiber cloth C301, and a steel pipe 302 is arranged between the second glass fiber cloth C301 and the third glass fiber cloth C301.
The above is just an example, the base layer 1 is not limited to two layers of glass fiber cloth, and may be three layers, four layers or multiple layers, and the number of the corresponding layers is selected according to specific conditions; similarly, the outer structure layer 2 is not limited to four layers of glass fiber cloth, and may be two, three or more layers, and is not limited to the above number of layers, and the number of glass fiber cloth layers of the reinforcing layer 3 is not limited to the above setting, and may be set according to actual conditions.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A preparation method of a blade root base circle reinforcing mold for wind power blade forming is characterized by comprising the following steps: the method comprises the following steps:
laying at least two layers of glass fiber cloth on the template, additionally arranging an aluminum net between the glass fiber cloth, pouring resin, and curing to obtain a base layer (1);
laying at least two layers of glass fiber cloth on the base layer (1), additionally arranging a balsa wood layer or a PET foam layer between the glass fiber cloth, pouring resin, curing and forming an outer structure layer (2) on the base layer (1);
laying at least two layers of glass fiber cloth on the outer structure layer (2), transversely and longitudinally laying steel pipes between the glass fiber cloth, pouring resin, curing and forming a reinforcing layer (3) on the outer structure layer (2);
and (4) removing the template, and connecting the steel pipe in the reinforcing layer (3) with a steel frame (4) covered outside the reinforcing layer (3) through a height adjusting mechanism to obtain the blade root base circle reinforcing mold.
2. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that: and a steel plate (5) extending towards the lateral direction of the blade root base circle reinforcing mould is additionally arranged at the bottom end of the blade root base circle reinforcing mould.
3. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that:
the height adjusting mechanism comprises a screw rod (6) welded with a steel pipe, a fixing plate (7) is installed on the screw rod (6) in a penetrating mode, the screw rod (6) is connected with the fixing plate (7) through an adjustable nut (8), and a connecting plate (9) is bent upwards at one end of the fixing plate (7).
4. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 3, characterized in that: the fixing device is characterized by further comprising reinforcing plates (10) which are arranged on two sides of the connecting plate (9) respectively, and the top ends of the reinforcing plates (10) are connected with the lower end face of the fixing plate (7).
5. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that: the steel pipe is a square pipe, and the size of the square pipe is 40 multiplied by 60 multiplied by (3-5) mm or 50 multiplied by (3-5) mm; 3 rows of square pipes are arranged at intervals along the radial direction of the outer structural layer (102), and the distance between two adjacent square steel pieces is 20-30 cm; 7-9 rows of square pipes are arranged at intervals along the longitudinal direction of the outer structural layer (102), and the distance between every two adjacent square pipes is 50-60 cm.
6. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that: the height of the blade root base circle reinforcing die is 1-1500 mm.
7. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that: the outer structure layer (102) is six glass fiber cloth layers, and a balsa wood layer or a PET foam layer is arranged between the third layer and the fourth layer of the outer structure layer (102).
8. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 7, characterized in that: a balsa wood layer is arranged between the third layer and the fourth layer of the outer structure layer (102), and the chamfer angle around the balsa wood layer is 45-60 degrees; the thickness of the balsa blanket is 16-20 mm; the light wood layer is made of balsa wood.
9. The preparation method of the blade root base circle reinforcing mold for wind power blade molding according to claim 1, characterized in that: the resin is one of epoxy resin, vinyl resin and polyester resin, the thickness of the iron plate is 8mm, the width of the iron plate is 100mm, and the iron plate is in a semi-arc shape; the thickness of the base layer (101) is 8-12 mm; the thickness of the outer structural layer (102) is 24-35 mm.
10. A blade root base circle reinforcing mold obtained based on the preparation method of the blade root base circle reinforcing mold for wind power blade molding according to any one of claims 1 to 9, characterized in that: include from inside to outside in proper order for basic unit (1), outer structure layer (2), back up coat (3) and steelframe (4), be equipped with balsawood layer or PET foam blanket between outer structure layer (2), violently indulge between back up coat (3) and be equipped with the steel pipe, the steel pipe is connected through high adjustment mechanism and cover steelframe (4) of locating outside back up coat (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210326347.XA CN114654624A (en) | 2022-03-30 | 2022-03-30 | Blade root base circle reinforcing die for wind power blade molding and preparation method thereof |
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| CN202210326347.XA CN114654624A (en) | 2022-03-30 | 2022-03-30 | Blade root base circle reinforcing die for wind power blade molding and preparation method thereof |
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|---|---|---|---|---|
| CN110303620A (en) * | 2019-06-28 | 2019-10-08 | 北玻院(滕州)复合材料有限公司 | A kind of wind turbine blade mold and preparation method thereof with cooling system |
| CN210758664U (en) * | 2019-08-08 | 2020-06-16 | 北玻院(滕州)复合材料有限公司 | Wind-powered electricity generation blade girder mould regulating part |
| CN111546543A (en) * | 2020-06-19 | 2020-08-18 | 北玻院(滕州)复合材料有限公司 | Wind power blade mold, blade mold manufacturing method and mold profile monitoring system |
| CN213704615U (en) * | 2020-09-16 | 2021-07-16 | 明阳智慧能源集团股份公司 | Be used for wind-powered electricity generation blade mould hand to stick up cloth layer antiskid frock that falls |
| CN113510880A (en) * | 2021-03-31 | 2021-10-19 | 洛阳双瑞风电叶片有限公司 | Intelligent control system and control method for wind power blade mould airfoil profile |
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