CN105751530A - Blade manufacturing method - Google Patents

Blade manufacturing method Download PDF

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Publication number
CN105751530A
CN105751530A CN201610236919.XA CN201610236919A CN105751530A CN 105751530 A CN105751530 A CN 105751530A CN 201610236919 A CN201610236919 A CN 201610236919A CN 105751530 A CN105751530 A CN 105751530A
Authority
CN
China
Prior art keywords
blade
laying
layer
crossbeam
cloth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610236919.XA
Other languages
Chinese (zh)
Inventor
石鹏飞
江爱林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sany Heavy Energy Equipment Co Ltd
Original Assignee
Sany Heavy Energy Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sany Heavy Energy Equipment Co Ltd filed Critical Sany Heavy Energy Equipment Co Ltd
Priority to CN201610236919.XA priority Critical patent/CN105751530A/en
Publication of CN105751530A publication Critical patent/CN105751530A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping 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
    • B29C70/36Shaping 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 and impregnating by casting, e.g. vacuum casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/08Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
    • B29L2031/082Blades, e.g. for helicopters
    • B29L2031/085Wind turbine blades

Abstract

The invention discloses a blade manufacturing method.The blade manufacturing method includes the steps of S1, arranging a first guide net on the surface of a blade mould; S2, laying a blade laying layer consisting of a blade shell outer covering cloth layer, an outer root reinforcement layer, a crossbeam cloth layer, a core material, an inner root reinforcement layer and a blade shell inner covering cloth layer sequentially; S3, laying a vacuum filling system, injecting resin into the blade laying layer through the vacuum filling system, and curing to form blade shells and a crossbeam; S4, placing a blade adhering web prefabricated part in a lower blade shell; S5, subjecting an upper blade shell and the lower blade shell to mould closing, hand lay-up molding and curing so as to form a blade; S6, subjecting the blade to aftertreatment.The blade manufacturing method has the advantages that the crossbeam and the blade shells are subjected to laying molding, filling and curing together, thereby being better in shape follow-up; mould cost is saved substantially, and filling performance is better.

Description

A kind of production process of blade
Technical field
The present invention relates to a kind of wind generating technology, especially relate to the production process of blade of a kind of wind-driven generator.
Background technology
Existing wind electricity blade makes and mainly includes following five basic steps:
(1) lay blade laying 2 ' on blade mold 1 surface, be followed successively by blade shell exterior skin layer of cloth 21 ' and root enhancement Layer 22 ', crossbeam prefabricated component 23 ', core 24 ', blade shell inside panel 25 ' and root enhancement Layer.Blade laying after laying is as depicted in figs. 1 and 2;
(2) lay priming by vacuum system, perfusion resin, solidify to form blade shell.The perfusing hole 31 ' of wherein priming by vacuum system is arranged in blade shell inside panel 25 ' top, and bleeding point 33 ' is arranged in blade mold 1 both sides, as shown in Figure 3;
(3) in lower blade housing, bonding blade web prefabricated component is placed;
(4) by upper and lower blade shell matched moulds, solidification, blade is formed;
(5) blade post processing.
In existing production process of blade, crossbeam is prefabricated component, it is necessary to special crossbeam makes mould, and list overlaps crossbeam mold materials cost about 600,000, with high costs;And crossbeam and blade shell laying conformal are difficult to ensure that;The perfusing hole of priming by vacuum system and bleeding point are respectively positioned on above blade laying, it is easy to problems such as not filling occur.
Summary of the invention
In view of this, the present invention proposes a kind of production process of blade, and by crossbeam being laid shaping, perfusion together with blade shell, solidifying, crossbeam is better with blade shell conformal, and significantly saves die cost.
The manufacture method of a kind of blade, comprises the following steps:
S1, lay the first flow-guiding screen on blade mold surface;
S2, laying blade laying, be followed successively by enhancement Layer and blade shell inside panel layer of cloth in blade shell exterior skin layer of cloth and root outer enhancement Layer, crossbeam layer of cloth, core, root;
S3, laying priming by vacuum system, by priming by vacuum system to resin by injection in blade laying, solidify, form blade shell and crossbeam;
S4, in lower blade housing, place bonding blade web prefabricated component;
S5, by upper and lower blade shell matched moulds, hands stick with paste, solidify, formed blade;
S6, blade post processing.
Further, in step s3, lay priming by vacuum system and specifically include following steps:
S31, above blade laying, lay release cloth, porose isolating membrane, the second flow-guiding screen and vacuum bag film successively;
S32, perfusing hole and bleeding point are set.
Further, in step S32, it is spaced some first perfusing holes of layout along length of blade direction in the both sides of the edge of blade mold, is spaced some second perfusing holes of layout in the week of blade laying upwardly along length of blade direction;Arrange some bleeding points along interval, length of blade direction above crossbeam layer of cloth.
Further, in step S32, default some first perfusing holes it are spaced along length of blade direction being positioned at the blade mold surface below crossbeam layer of cloth, it is spaced some second perfusing holes of layout in the week of blade laying upwardly along length of blade direction, is spaced the some bleeding points of layout in the both sides of the edge of blade mold along length of blade direction.
Further, from the first perfusing hole resin by injection, it is guided to the bottom surface of blade laying by the first flow-guiding screen, makes resin irrigate from blade laying bottom surface to surface;From the second perfusing hole resin by injection, resin is made to irrigate from blade laying surface to bottom surface.
In production process of blade of the present invention, crossbeam is laid shaping, perfusion together with blade shell, is solidified, and crossbeam is better with blade shell conformal;And do not use crossbeam prefabricated component, from without crossbeam mould, significantly saving cost;Additionally, by arranging the first flow-guiding screen, and respectively from the bottom surface of blade laying and surface two-way filling resin, perfusion effect is better, greatly reduce the problems such as not filling of easily occurring in existing production process of blade, Leaf productivity and blade pouring quality are greatly improved.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the root cross-sectional view of existing production process of blade Leaf laying;
Fig. 2 is the middle section structural representation of existing production process of blade Leaf laying;
Fig. 3 is the arrangement schematic diagram of priming by vacuum system in existing production process of blade;
Fig. 4 is the root cross-sectional view of production process of blade Leaf laying of the present invention;
Fig. 5 is the stage casing cross-sectional view of production process of blade Leaf laying of the present invention;
Fig. 6 is the structural representation of the first layout embodiment of priming by vacuum system in production process of blade of the present invention;
Fig. 7 is the overall distribution schematic diagram of perfusing hole and bleeding point in Fig. 6;
Fig. 8 is the structural representation of the second layout embodiment of priming by vacuum system in production process of blade of the present invention.
Description of reference numerals: 1, blade mold;10, the first flow-guiding screen;2, blade laying;21, blade shell exterior skin layer of cloth;22, root enhancement Layer;23, crossbeam layer of cloth;24, core;25, blade shell inside panel layer of cloth;31, the first perfusing hole;32, the second perfusing hole;33, bleeding point.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.The present invention is described in detail below in conjunction with drawings and Examples.
The manufacture method of the blade of the present embodiment, comprises the following steps:
S1, lay the first flow-guiding screen 10 on blade mold 1 surface;
S2, laying blade laying 2, be followed successively by enhancement Layer and blade shell inside panel layer of cloth 25 in blade shell exterior skin layer of cloth 21 and root outer enhancement Layer 22, crossbeam layer of cloth 23, core 24, root;Specifically as shown in Figure 4 and Figure 5;
S3, laying priming by vacuum system, by priming by vacuum system to resin by injection in blade laying, solidify, form blade shell and crossbeam;
S4, in lower blade housing, place bonding blade web prefabricated component;
S5, by upper and lower blade shell matched moulds, hands stick with paste, solidify, formed blade;
S6, blade post processing.
In the present embodiment, in step s3, lay priming by vacuum system and specifically include following steps:
S31, above blade laying 2, lay release cloth, porose isolating membrane, the second flow-guiding screen and vacuum bag film successively;
S32, perfusing hole and bleeding point 33 are set.
Concrete, the invention provides the set-up mode of two kinds of perfusing holes and bleeding point 33.
In the first embodiment, as shown in Figures 6 and 7, it is spaced some first perfusing holes 31 of layout along length of blade direction in the both sides of the edge of blade mold 1, is spaced some second perfusing holes 32 of layout in the week of blade laying 2 upwardly along length of blade direction;Arrange some bleeding points 33 along interval, length of blade direction above crossbeam layer of cloth 23.From the first perfusing hole 31 resin by injection, it is guided to the bottom surface of blade laying 2 by the first flow-guiding screen 10, makes resin irrigate from blade laying 2 bottom surface to surface;From the second perfusing hole 32 resin by injection, resin is made to irrigate from blade laying 2 surface to bottom surface.
With first embodiment the difference is that, in second embodiment, as shown in Figure 8, first perfusing hole 31 is spaced along length of blade direction and is preset in blade mold 1 surface being positioned at below crossbeam layer of cloth 23, second perfusing hole 32 is spaced in the surface circumference being arranged in blade laying 2 along length of blade direction, and bleeding point 33 is spaced, along length of blade direction, the both sides of the edge being arranged in blade mold 1.Its perfusion principle is identical with first embodiment, namely from the first perfusing hole 31 resin by injection, is guided to the bottom surface of blade laying 2 by the first flow-guiding screen 10, makes resin irrigate from blade laying 2 bottom surface to surface;From the second perfusing hole 32 resin by injection, resin is made to irrigate from blade laying 2 surface to bottom surface.
Production process of blade of the present invention compares existing production process of blade, has the advantage that
1, crossbeam is laid shaping, perfusion together with blade shell, is solidified, and crossbeam is better with blade shell conformal;And do not use crossbeam prefabricated component, from without crossbeam mould, significantly saving cost;
2, by arranging the first flow-guiding screen 10, and respectively from the bottom surface of blade laying 2 and surface two-way filling resin, perfusion effect is better, greatly reduces the problems such as not filling of easily occurring in existing production process of blade, Leaf productivity and blade pouring quality are greatly improved.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (5)

1. the manufacture method of a blade, it is characterised in that comprise the following steps:
S1, lay the first flow-guiding screen (10) on blade mold (1) surface;
S2, laying blade laying (2), be followed successively by enhancement Layer and blade shell inside panel layer of cloth (25) in blade shell exterior skin layer of cloth (21) and root outer enhancement Layer (22), crossbeam layer of cloth (23), core (24), root;
S3, laying priming by vacuum system, by priming by vacuum system to resin by injection in blade laying, solidify, form blade shell and crossbeam;
S4, in lower blade housing, place bonding blade web prefabricated component;
S5, by upper and lower blade shell matched moulds, hands stick with paste, solidify, formed blade;
S6, blade post processing.
2. production process of blade according to claim 1, it is characterised in that: in step s3, lay priming by vacuum system and specifically include following steps:
S31, blade laying (2) top lay release cloth, porose isolating membrane, the second flow-guiding screen and vacuum bag film successively;
S32, perfusing hole and bleeding point (33) are set.
3. production process of blade according to claim 2, it is characterized in that: in step S32, it is spaced some first perfusing holes (31) of layout in the both sides of the edge of blade mold (1) along length of blade direction, is spaced some second perfusing holes (32) of layout in the week of blade laying (2) upwardly along length of blade direction;Arrange some bleeding points (33) along interval, length of blade direction in crossbeam layer of cloth (23) top.
4. production process of blade according to claim 2, it is characterized in that: in step S32, default some first perfusing holes (31) it are spaced along length of blade direction being positioned at blade mold (1) surface below crossbeam layer of cloth (23), it is spaced some second perfusing holes (32) of layout in the week of blade laying (2) upwardly along length of blade direction, is spaced the some bleeding points of layout (33) in the both sides of the edge of blade mold (1) along length of blade direction.
5. the production process of blade according to claim 3 or 4, it is characterized in that: from the first perfusing hole (31) resin by injection, it is guided to the bottom surface of blade laying (2) by the first flow-guiding screen (10), makes resin irrigate from blade laying (2) bottom surface to surface;From the second perfusing hole (32) resin by injection, resin is made to irrigate from blade laying (2) surface to bottom surface.
CN201610236919.XA 2016-04-15 2016-04-15 Blade manufacturing method Pending CN105751530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610236919.XA CN105751530A (en) 2016-04-15 2016-04-15 Blade manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610236919.XA CN105751530A (en) 2016-04-15 2016-04-15 Blade manufacturing method

Publications (1)

Publication Number Publication Date
CN105751530A true CN105751530A (en) 2016-07-13

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Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188727A (en) * 2020-01-13 2020-05-22 上海电气风电集团股份有限公司 Wind turbine blade root structure and production method thereof
CN113002016A (en) * 2021-02-27 2021-06-22 中复连众(哈密)复合材料有限公司 Suction pouring forming method for web plate of megawatt wind power generation blade
CN113232321A (en) * 2021-03-29 2021-08-10 上海电气风电集团股份有限公司 Wind power blade shell core material prefabricating process method and shell core material prefabricating member

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102114710A (en) * 2009-12-30 2011-07-06 洛阳双瑞风电叶片有限公司 Method for preparing large-scale composite-material aerogenerator blade
CN104325658A (en) * 2014-09-05 2015-02-04 航天材料及工艺研究所 Making method of heavy gauge composite material main beam cap for fan blades
CN105128358A (en) * 2015-08-20 2015-12-09 洛阳双瑞风电叶片有限公司 Manufacturing method for wind power blade

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102114710A (en) * 2009-12-30 2011-07-06 洛阳双瑞风电叶片有限公司 Method for preparing large-scale composite-material aerogenerator blade
CN104325658A (en) * 2014-09-05 2015-02-04 航天材料及工艺研究所 Making method of heavy gauge composite material main beam cap for fan blades
CN105128358A (en) * 2015-08-20 2015-12-09 洛阳双瑞风电叶片有限公司 Manufacturing method for wind power blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188727A (en) * 2020-01-13 2020-05-22 上海电气风电集团股份有限公司 Wind turbine blade root structure and production method thereof
CN113002016A (en) * 2021-02-27 2021-06-22 中复连众(哈密)复合材料有限公司 Suction pouring forming method for web plate of megawatt wind power generation blade
CN113232321A (en) * 2021-03-29 2021-08-10 上海电气风电集团股份有限公司 Wind power blade shell core material prefabricating process method and shell core material prefabricating member

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Application publication date: 20160713

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