CN111878302B - Windmill blade male mold replacing plate and using method thereof - Google Patents

Windmill blade male mold replacing plate and using method thereof Download PDF

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Publication number
CN111878302B
CN111878302B CN202010658754.1A CN202010658754A CN111878302B CN 111878302 B CN111878302 B CN 111878302B CN 202010658754 A CN202010658754 A CN 202010658754A CN 111878302 B CN111878302 B CN 111878302B
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Prior art keywords
shaped bracket
web
male
plate
replacing plate
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CN111878302A (en
Inventor
王学花
梁斌斌
王树慧
黄俊达
刘光明
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Tianjin CRRC Wind Power Blade Engineering Co Ltd
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Tianjin CRRC Wind Power Blade Engineering Co Ltd
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Priority to CN202010658754.1A priority Critical patent/CN111878302B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/0608Rotors characterised by their aerodynamic shape
    • F03D1/0633Rotors characterised by their aerodynamic shape of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • F03D1/0675Rotors characterised by their construction elements of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Road Repair (AREA)
  • Wind Motors (AREA)

Abstract

The invention provides a windmill blade male mold replacing plate and a using method thereof, and relates to the technical field of wind power blade manufacturing. The method can omit the manufacture of the male die web plate. The problem and the defect that the prior male die web plate can be abandoned only once are overcome.

Description

Windmill blade male mold replacing plate and using method thereof
Technical Field
The invention relates to the technical field of wind power blade manufacturing, in particular to the field of manufacturing female dies by replacing male die webs.
Background
At present, the customization of the windmill blade web needs to prefabricate a male die web firstly, the male die web needs to be manufactured according to the sizes of different blades, a great amount of time and labor cost are required for each manufacturing, the manufactured blade can only use one specification, and the blade can not be used for the other blade and can only be abandoned.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a reusable size-adjustable male die replacing plate.
The invention is realized by the following technical scheme: the male die replacing plate comprises a threaded sleeve, a first T-shaped support and a second T-shaped support, wherein the first T-shaped support is formed by welding a first base and a first screw, the second T-shaped support is formed by welding a second base and a second screw, the first screw and the second screw penetrate into the threaded sleeve, the expansion and contraction amounts of the two T-shaped supports are adjusted through the threaded sleeve, and therefore the length of the whole male die replacing plate is adjusted. The bases of the first T-shaped bracket and the second T-shaped bracket are square, horizontal marking lines are arranged on the side edges of the bases, and the surfaces of the bases are smooth.
Furthermore, the first T-shaped bracket and the second T-shaped bracket can be designed into shapes which are matched with the PS surface and the SS surface, so that the rotating first screw rod and the second screw rod can be directly attached to the PS surface and the SS surface without bonding structural adhesive.
Further, the threaded connection of the first screw rod and the second screw rod can be replaced by a hydraulic lifting or socket connection mode, so that the effect of adjusting the height of the male die replacing plate is achieved.
The method for manufacturing the female die by using the male die instead of the plate comprises the following steps:
(1) The SS surface is horizontally placed, a male mold replacing plate is placed on the bonding surface of the girder area of the SS surface at intervals of one meter longitudinally by taking the inner surface of the shell of the SS surface as a reference, and the first T-shaped bracket of the male mold replacing plate is subjected to simulated bonding with the shell of the SS surface by using structural adhesive;
(2) Before the SS surface structural adhesive is solidified, adjusting the angle of a male die replacing plate to enable a threaded sleeve to be vertical to the ground, wherein the marking edge line of the square base of the first T-shaped bracket is flush with the theoretical bonding positioning line of the web plate;
(3) After the SS surface structural adhesive is solidified, the first screw rod and the second screw rod are rotated to enable the height of the male die replacing plate to be close to the theoretical height of the web plate, and the position and the angle of a horizontal marking line of the square base of the second T-shaped bracket are consistent with the position of the horizontal marking line of the square base of the first T-shaped bracket;
(4) Coating structural adhesive on the second T-shaped bracket, and overturning the PS-surface shell to be matched with the die so as to simulate bonding;
(5) Opening the shell after the second T-shaped bracket structural adhesive is solidified, taking down the male die replacing plate, and drawing a positioning line of a flange surface of the web SS surface on a web female die platform according to web theory pre-bending;
(6) The male die replacing plate taken down from the shell is horizontally arranged on the web female die platform one meter by one meter, the angle of the male die replacing plate is adjusted to enable the threaded sleeve to be horizontal, and the marking edge of the first T-shaped bracket is level with the positioning line of the flange surface of the web SS surface;
(7) The flanges at two sides of the web female die are welded tightly to the first T-shaped bracket and the second T-shaped bracket;
(8) And taking down the male die replacing plate, removing the first T-shaped support and the structural adhesive at the first T-shaped support, and storing the male die replacing plate for next use.
Further, step (0) is added before step (1), a layer of plastic bag film is paved on the surface of the SS shell in advance, and the plastic bag film is used for protecting the surface of the girder, preventing the girder from contacting with the structural adhesive and avoiding increasing the cleaning workload.
Further, the step (4.1) is added after the step (4), a layer of plastic bag film is paved on the surface of the PS-surface shell in advance, and the plastic bag film is used for protecting the surface of the girder, preventing the girder from contacting with the structural adhesive and avoiding increasing the cleaning workload.
The beneficial effects of the invention are as follows:
a) The male die replaces the male die web plate with the male die instead of the plate, so that the manufacturing time and the manufacturing cost of the male die web plate are saved;
b) The male die replaces the plate to be bonded with the shell one meter, and compared with the bonding of the through-length male die web plate with the shell, the labor and the cost for bonding the structural adhesive are saved;
c) The male die replacing plate has simple structure, the PS surface and the SS surface of the shell are respectively simulated and bonded at the upper end and the lower end of the male die replacing plate, and the size precision of the manufactured female die is higher;
d) The male die replacing plate can be reused, and one set of male die replacing plate can be used for various blade shapes, so that the problem and the defect that the existing male die web plate can be abandoned after being used once are overcome;
drawings
Fig. 1 shows a schematic structure of a windmill blade.
Fig. 2 shows a schematic structural view of a male mold replacement plate of the present application.
In the figure: 1. a threaded sleeve; 2. a first T-shaped bracket; 3. a second T-shaped bracket; 4. a first screw; 5. a second screw; 6. an SS surface housing; 7. PS surface shell; 8. a girder; 9. a web; 10. a first base; 11. and a second base.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present invention.
As shown in the figure, the male die replacing plate for wind power blade manufacture of the invention can replace the male die web 9 to manufacture female dies, the male die replacing plate comprises a threaded sleeve 1, a first T-shaped bracket 2 and a second T-shaped bracket 3, the first T-shaped bracket 2 is formed by welding a first base 10 and a first screw 4, the second T-shaped bracket 3 is formed by welding a second base 11 and a second screw 5, the first screw 4 and the second screw 5 penetrate into the threaded sleeve 1, and the expansion and contraction amount of the two T-shaped brackets is adjusted through the threaded sleeve 1, so that the length of the whole male die replacing plate is adjusted. The bases of the first T-shaped bracket 2 and the second T-shaped bracket 3 are square, horizontal marking lines are arranged on the side edges of the bases, and the surfaces of the bases are smooth.
Furthermore, the first T-shaped bracket 2 and the second T-shaped bracket 3 can be designed to be in a shape which is matched with the PS surface and the SS surface, so that the rotating first screw 4 and the second screw 5 can be directly matched with the PS surface and the SS surface without bonding structural adhesive.
Further, the threaded connection of the first screw 4 and the second screw 5 can be replaced by a hydraulic lifting or socket connection mode, so that the effect of adjusting the height of the male die replacing plate is achieved.
The method for manufacturing the female die by using the male die instead of the plate comprises the following steps:
(1) The SS surface is horizontally placed, a male mold replacing plate is placed on the bonding surface of the area of the girder 8 of the SS surface at intervals of one meter longitudinally by taking the inner surface of the shell of the SS surface as a reference, and the first T-shaped bracket 2 of the male mold replacing plate is subjected to simulated bonding with the shell of the SS surface by using structural adhesive;
(2) Before the SS surface structural adhesive is solidified, the angle of a male die replacing plate is adjusted, so that the threaded sleeve 1 is vertical to the ground, and the marking edge line of the square base of the first T-shaped bracket 2 is flush with the theoretical bonding positioning line of the web 9;
(3) After the SS surface structural adhesive is solidified, the first screw 4 and the second screw 5 are rotated to enable the height of the male die replacing plate to be close to the theoretical height of the web 9, and the position and the angle of the horizontal marking line of the square base of the second T-shaped bracket 3 are consistent with the position of the horizontal marking line of the square base of the first T-shaped bracket 2;
(4) Coating structural adhesive on the second T-shaped bracket 3, and overturning the PS-surface shell to be matched with the die so as to simulate bonding;
(5) Opening the shell after the structural adhesive of the second T-shaped bracket 3 is solidified, taking down the male die replacing plate, and drawing a positioning line of the flange surface of the SS surface of the web 9 on the die platform of the female die of the web 9 according to the web 9 theory;
(6) The male die replacing plate taken down from the shell is horizontally placed on the die platform of the female die of the web 9 one meter by one meter, the angle of the male die replacing plate is adjusted to enable the threaded sleeve 1 to be horizontal, and the marking edge of the first T-shaped bracket 2 is flush with the positioning line of the flange surface of the SS surface of the web 9;
(7) The flanges at two sides of the female die of the web 9 are welded tightly to the first T-shaped bracket 2 and the second T-shaped bracket 3;
(8) And (3) taking down the male die replacing plate, removing the first T-shaped support 2 and the structural adhesive at the first T-shaped support 2, and storing the male die replacing plate for next use.
Further, step (0) is added before step (1), a layer of plastic bag film is paved on the surface of the SS shell in advance, and the plastic bag film is used for protecting the surface of the girder 8, so that the girder 8 is prevented from contacting the structural adhesive, and the cleaning workload is prevented from being increased.
Further, the step (4.1) is added after the step (4), a layer of plastic bag film is paved on the surface of the PS-surface shell in advance, and the plastic bag film is used for protecting the surface of the girder 8, so that the girder 8 is prevented from contacting the structural adhesive, and the cleaning workload is avoided.
The beneficial effects of the invention are as follows: the working procedure of manufacturing the male die before manufacturing the female die is reduced, and a great deal of cost and time are saved. The male die replacing plate for replacing the male die web plate 9 is simple in structure and easy to operate; the PS surface and the SS surface of the shell are respectively simulated and bonded at the upper end and the lower end of the male die replacing plate, and the size precision of the manufactured female die is higher.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (6)

1. A male mould substitution plate for wind power blade manufacture, which can substitute a male mould web (9) to manufacture a female mould, characterized in that: including screw sleeve (1), first T shape support (2) and second T shape support (3), first T shape support (2) are formed by first base (10) and first screw rod (4) welding, second T shape support (3) are formed by second base (11) and second screw rod (5) welding, first screw rod (4) and second screw rod (5) penetrate screw sleeve (1) in, adjust the flexible volume of two T shape supports through screw sleeve (1) to adjust the length of whole positive mould substitution board, the base of first T shape support (2) and second T shape support (3) is square and is equipped with the horizontal mark line at the base side, the base surface is smooth.
2. The male mold substitution plate for wind power blade manufacturing of claim 1, wherein: the first T-shaped bracket (2) and the second T-shaped bracket (3) can be designed into a shape which is matched with the PS surface and the SS surface.
3. Male mould replacement panel for wind blade manufacture according to claim 1 or 2, characterized in that: the threaded connection of the first screw (4) and the second screw (5) can be replaced by a hydraulic lifting or socket connection mode.
4. A method of manufacturing a female mould using the male mould of claim 1 instead of a plate, characterized in that: the method comprises the following steps:
(1) The SS surface is horizontally placed, a male mold replacing plate is longitudinally placed every other one meter on the bonding surface of the area of the girder (8) of the SS surface by taking the inner surface of the shell of the SS surface as a reference, and the first T-shaped bracket (2) of the male mold replacing plate is subjected to simulated bonding with the shell of the SS surface by using structural adhesive;
(2) Before the SS surface structural adhesive is solidified, the angle of a male die replacing plate is adjusted, so that the threaded sleeve (1) is vertical to the ground, and the marked edge line of the square base of the first T-shaped bracket (2) is flush with the theoretical bonding positioning line of the web (9);
(3) After the SS surface structural adhesive is solidified, the first screw (4) and the second screw (5) are rotated, so that the height of a male die replacing plate is close to the theoretical height of a web plate (9), and the position and the angle of a horizontal marking line of a square base of the second T-shaped bracket (3) are consistent with the position of the horizontal marking line of the square base of the first T-shaped bracket (2);
(4) Coating structural adhesive on the second T-shaped bracket (3), and overturning the PS-surface shell to be matched with the die so as to simulate bonding;
(5) Opening the shell after the structural adhesive of the second T-shaped bracket (3) is solidified, taking down the male die replacing plate, and drawing a positioning line of an SS surface flange surface of the web (9) on a die platform of the female die of the web (9) according to the web (9) theory;
(6) The male die replacing plate taken down from the shell is horizontally arranged on the female die platform of the web (9) one meter by one meter, the angle of the male die replacing plate is adjusted to enable the threaded sleeve (1) to be horizontal, and the marking edge of the first T-shaped bracket (2) is parallel to the positioning line of the flange surface of the SS surface of the web (9);
(7) The flanges at two sides of a female die of a web (9) are welded by clinging to the first T-shaped bracket (2) and the second T-shaped bracket (3);
(8) And taking down the male die replacing plate, removing the first T-shaped support (2) and the structural adhesive at the first T-shaped support (2), and storing the male die replacing plate for the next use.
5. The method of manufacturing a negative mold according to claim 4, characterized in that: step (0) is added before step (1), and a layer of plastic bag film is paved on the surface of the SS shell in advance.
6. A method of manufacturing a negative mould according to claim 4 or 5, characterised in that: and (4.1) adding a layer of plastic bag film on the surface of the PS-surface shell in advance after the step (4).
CN202010658754.1A 2020-07-09 2020-07-09 Windmill blade male mold replacing plate and using method thereof Active CN111878302B (en)

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CN202010658754.1A CN111878302B (en) 2020-07-09 2020-07-09 Windmill blade male mold replacing plate and using method thereof

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Application Number Priority Date Filing Date Title
CN202010658754.1A CN111878302B (en) 2020-07-09 2020-07-09 Windmill blade male mold replacing plate and using method thereof

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CN111878302B true CN111878302B (en) 2024-02-20

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392797A (en) * 2011-11-22 2012-03-28 中国计量学院 Middle section of extrusion bendable transverse superposition type medium-sized wind power blade and manufacturing equipment thereof
CN202278690U (en) * 2011-10-26 2012-06-20 奚鹰 Regulating device for flange edges of glass casing molds of negative dies for ultra-large type wind power vane
CN202878541U (en) * 2012-08-22 2013-04-17 天津东汽风电叶片工程有限公司 Wind power blade web mold
WO2016026498A1 (en) * 2014-08-20 2016-02-25 Vestas Wind Systems A/S Improvements relating to wind turbine blade manufacture
CN107856316A (en) * 2017-12-08 2018-03-30 吉林重通成飞新材料股份公司 Blade web adhering method and blade web adjustment die method
EP3469212A1 (en) * 2016-06-08 2019-04-17 Wobben Properties GmbH Rotor for a wind turbine, rotor blade for a wind turbine, sleeve, and method for assembling a rotor
CN210362089U (en) * 2019-08-09 2020-04-21 连云港双菱风电设备科技有限公司 Base part for a male mould of a wind turbine blade
CN111037807A (en) * 2019-11-28 2020-04-21 上海华宜风电模具有限公司 Manufacturing method of adjustable trial movable flange of wind power blade web plate die
CN212928056U (en) * 2020-07-09 2021-04-09 天津中车风电叶片工程有限公司 Windmill blade male die replacement plate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9404473B2 (en) * 2014-10-09 2016-08-02 Michael Zuteck Strain isolated attachment for one-piece wind turbine rotor hub
DE102018130550A1 (en) * 2018-11-30 2020-06-04 Tpi Composites Germany Gmbh Process for producing a rotor blade half root and a production mold therefor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202278690U (en) * 2011-10-26 2012-06-20 奚鹰 Regulating device for flange edges of glass casing molds of negative dies for ultra-large type wind power vane
CN102392797A (en) * 2011-11-22 2012-03-28 中国计量学院 Middle section of extrusion bendable transverse superposition type medium-sized wind power blade and manufacturing equipment thereof
CN202878541U (en) * 2012-08-22 2013-04-17 天津东汽风电叶片工程有限公司 Wind power blade web mold
WO2016026498A1 (en) * 2014-08-20 2016-02-25 Vestas Wind Systems A/S Improvements relating to wind turbine blade manufacture
EP3469212A1 (en) * 2016-06-08 2019-04-17 Wobben Properties GmbH Rotor for a wind turbine, rotor blade for a wind turbine, sleeve, and method for assembling a rotor
CN107856316A (en) * 2017-12-08 2018-03-30 吉林重通成飞新材料股份公司 Blade web adhering method and blade web adjustment die method
CN210362089U (en) * 2019-08-09 2020-04-21 连云港双菱风电设备科技有限公司 Base part for a male mould of a wind turbine blade
CN111037807A (en) * 2019-11-28 2020-04-21 上海华宜风电模具有限公司 Manufacturing method of adjustable trial movable flange of wind power blade web plate die
CN212928056U (en) * 2020-07-09 2021-04-09 天津中车风电叶片工程有限公司 Windmill blade male die replacement plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
风力发电叶片腹板模具制造研究;陈祥发;;工业设计(第06期);全文 *

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