CN103061995B - Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set - Google Patents
Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set Download PDFInfo
- Publication number
- CN103061995B CN103061995B CN201310023996.3A CN201310023996A CN103061995B CN 103061995 B CN103061995 B CN 103061995B CN 201310023996 A CN201310023996 A CN 201310023996A CN 103061995 B CN103061995 B CN 103061995B
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- blade root
- bolt
- pvc
- flange
- buried
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- 238000003672 processing method Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 4
- 239000004800 polyvinyl chloride Substances 0.000 abstract 4
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000009755 vacuum infusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a method for pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set. The method includes the steps of aligning the center of each flange hole of a blade root flange plate to corresponding center of each hole of a flange die; penetrating pre-buried screws into the flange holes of the blade root flange plate and fixing the pre-buried screws with nuts; nesting the pre-buried screws with UD sleeves; penetrating bolt sleeves into the UD sleeves; penetrating the pre-buried screws into the bolt sleeves to be tightened; penetrating threaded ends of the bolt sleeves into PVC (Poly Vinyl Chloride) wedges ; clamping the PVC chocks on the lateral sides of the UC sleeves and compacting the UD sleeves and the PVC chocks; and placing UD sticks in the inner sides of the US sleeves, filling the UD sticks between neighboring bolt sleeves, pounding the US sticks tight, and filling clearances among the UC sleeves, the UD sticks and the bolt sleeves with the UD sticks. By the aid of the method, technological process is shortened, rate of finished products is increased, working position is reduced, and production efficiency is improved; and further wind turbine generator set the pre-buried screws and the wind turbine generator set are combined tightly.
Description
Technical field
The present invention relates to a kind of wind electricity blade and manufacture field, particularly relate to a kind of megawatt wind-power blade blade root screw pre-buried technological method.
Background technique
Wind electricity blade is as the core component of unit, blade technology is one of core technology of wind-power generating system, the quality of its performance directly affects load suffered by the wind energy efficiency of Wind turbines and unit, determines the Economy that the overall performance of unit and Wind Power Generation utilize to a great extent.Meanwhile, blade is also the core component of blower fan, and its cost is about 23% of Wind turbines overall cost.
Existing blade production technology adopts vacuum infusion molding usually, and follow-up needs cuts blade root, punches.This makes blade cumbersome in forming process, blade root cutting, the more difficult control of punch operation.A kind of technological method easily how is provided to be the problem that technician will solve to manufacture megawatt wind-power blade.
Summary of the invention
The present invention proposes a kind of megawatt wind-power blade blade root screw pre-buried technological method, and it can overcome deficiency of the prior art effectively.
Technological scheme of the present invention is achieved in that a kind of megawatt wind-power blade blade root screw pre-buried technological method, and the method comprises the following steps:
(1) blade root flange plate is installed: alignd with mould flange Ge Kong center at each flange hole center of blade root flange plate;
(2) pre embedded bolt and nut are installed: the pre embedded bolt penetrating respective numbers in the flange hole of blade root flange plate, and are fixed with nut;
(3) UD is enclosed within pre embedded bolt;
(4) penetrated by bolt sleeve in UD cover, bolt sleeve need be placed perpendicular to blade root flange plate;
(5) tighten after pre embedded bolt being penetrated bolt sleeve away from one end of nut, the threaded end of pre embedded bolt and bolt sleeve is formed fixing;
(6) threaded end of bolt sleeve is penetrated in PVC chock;
(7) PVC chock card is placed on the outside of UD band, and by UD band and the compacting of PVC chock;
(8) put into UD rod in the inner side of UD band, UD rod is filled between adjacent bolt sleeve, and hits tight with hammer, UD band fills up with the gap UD silk of UD rod and bolt sleeve.
As preferably, in step (6), before bolt sleeve is penetrated PVC chock, be screwed into bolt by this end-enclosed at the threaded end of bolt sleeve, then bolt penetrates in PVC chock with the threaded end of bolt sleeve, is formed fixing with PVC chock.
As preferably, described blade root flange plate internal diameter is 1.697 meters, and external diameter is 1.886 meters, and 27 flange holes altogether on flange plate, flange hole center is to flange distance of center circle from being 0.9 meter, and the radian between flange hole is 6.67 °.
As preferably, in step (1), with blade root flange plate the 14th flange hole center for basic point, is alignd with mould flange Ge Kong center in each flange hole center of blade root flange plate.
As preferably, the material of UD cover is 0 ° of glass-fiber-fabric.
As preferably, the outer surface of pre embedded bolt is wound with glass fibre.
As preferably, the two ends of pre embedded bolt are thread section, and its thread size is M30 × 3.5, and glass fiber winding is on non-threaded section of pre embedded bolt.
As preferably, the material of PVC chock is PVC foam, and the gradient of PVC chock is 1:7.
Beneficial effect of the present invention is: 1. adopt this technological method, can avoid the operation also needing to carry out blade root cutting and boring after the blade demoulding, shorten technological process, improve yield rate, decrease station, improve manufacturing efficiency.2. pre embedded bolt is combined tightr with wind generator set blade.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only one of them embodiment of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram after this technological method is used in wind-powered blade mold;
Fig. 2 is the structural representation of blade root flange plate;
Fig. 3 is the sectional view of A-A in Fig. 1;
Fig. 4 is pre embedded bolt structural representation;
Fig. 5 is the structural representation of bolt sleeve;
Fig. 6 is the sectional view of Fig. 4;
Fig. 7 is the structural representation of PVC chock.
In figure: 1, blade root laying a; 2, half UD rod; 3, UD rod; 4, UD band; 5, PVC chock; 6, bolt; 7, bolt sleeve; 8, UD cover; 9, pre embedded bolt; 10, blade root flange plate; 11, nut; 12, blade root laying b; 13, housing mould.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only one of them embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of megawatt wind-power blade blade root screw pre-buried technological method, the method comprises the following steps:
(1) blade root flange plate is installed: alignd with mould flange Ge Kong center at each flange hole center of blade root flange plate;
(2) pre embedded bolt and nut are installed: the pre embedded bolt penetrating respective numbers in the flange hole of blade root flange plate, and are fixed with nut;
(3) UD cover (uniaxially cloth cover) is enclosed within pre embedded bolt;
(4) penetrated by bolt sleeve in UD cover, bolt sleeve need be placed perpendicular to blade root flange plate;
(5) tighten after pre embedded bolt being penetrated bolt sleeve away from one end of nut, the threaded end of pre embedded bolt and bolt sleeve is formed fixing;
(6) be screwed into bolt by this end-enclosed at the threaded end of bolt sleeve, then penetrate in PVC chock by the threaded end of bolt sleeve, bolt penetrates in PVC chock with the threaded end of bolt sleeve, is formed fixing with PVC chock;
(7) PVC chock card is placed on the outside of UD band (uniaxially strap), and by UD band and the compacting of PVC chock;
(8) put into UD rod (uniaxially cloth rod) in the inner side of UD band, UD rod is filled between adjacent bolt sleeve, and hits tight with hammer, UD band fills up with the gap UD silk of UD rod and bolt sleeve.
As preferably, described blade root flange plate internal diameter is 1.697 meters, and external diameter is 1.886 meters, and 27 flange holes altogether on flange plate, flange hole center is to flange distance of center circle from being 0.9 meter, and the radian between flange hole is 6.67 °.
As preferably, in step (1), with blade root flange plate the 14th flange hole center for basic point, is alignd with mould flange Ge Kong center in each flange hole center of blade root flange plate.
As preferably, the material of UD cover is 0 ° of glass-fiber-fabric.
As preferably, the length of pre embedded bolt makes by customer requirement, and the two ends of pre embedded bolt are thread section, and its thread size is M30 × 3.5, and glass fiber winding is on non-threaded section of pre embedded bolt.
As preferably, the material of PVC chock is PVC foam, and the gradient of PVC chock is 1:7.
See Fig. 1 to Fig. 7, using method of the present invention comprises the following steps:
(1) blade root flange plate is installed: as shown in Figure 2, described blade root flange plate internal diameter is 1.697 meters, external diameter is 1.886 meters, flange plate has 27 flange holes altogether, the concrete size of flange hole as shown in Figure 3, flange hole center is to flange distance of center circle from being 0.9 meter, radian between flange hole is 6.67 °, with blade root flange plate the 14th flange hole center for basic point, is alignd with mould flange Ge Kong center in each flange hole center of blade root flange plate, during installation, should guarantee that mould blade root place is close to by blade root flange plate, do not stay gap, in order to avoid leak gas in vacuum infusion process;
(2) lay blade root laying b at the lower surface of wind electricity blade blade root, blade root laying b adopts biaxially glass-fiber-fabric (800g/m
2± 45);
(3) pre embedded bolt and nut are installed: the pre embedded bolt penetrating respective numbers in the flange hole of blade root flange plate, and be fixed with nut, the concrete size of pre embedded bolt as shown in Figure 4, the total length Y of pre embedded bolt makes by customer requirement, the two ends of pre embedded bolt are thread section, its thread size is M30 × 3.5, and glass fiber winding is on non-threaded section of pre embedded bolt;
(4) be enclosed within pre embedded bolt by UD, the material of UD cover is 0 ° of glass-fiber-fabric;
(5) penetrated by bolt sleeve (specification of bolt sleeve is M30) in UD cover, bolt sleeve need be placed perpendicular to blade root flange plate;
(6) tighten after pre embedded bolt being penetrated bolt sleeve away from one end of nut, the threaded end of pre embedded bolt and bolt sleeve is formed fixing;
(7) bolt (specification of bolt is M30) is screwed into by this end-enclosed at the threaded end of bolt sleeve, then the threaded end of bolt sleeve is penetrated in PVC chock, bolt penetrates in PVC chock with the threaded end of bolt sleeve, formed fixing with PVC chock, the material of PVC chock is PVC foam, and the gradient of PVC chock is 1:7;
(8) PVC chock card is placed on the outside of UD band, and by UD band and the compacting of PVC chock;
(9) put into UD rod in the inner side of UD band, UD rod is filled between adjacent bolt sleeve and puts into, and hit tight with hammer, UD band fills up with the gap UD silk of UD rod and bolt sleeve;
(10) lay blade root laying a at the upper surface of wind electricity blade blade root, blade root laying a adopts biaxially glass-fiber-fabric (800g/m
2± 45 °).
(11) priming by vacuum system is laid, by wind electricity blade form.
1. adopt this technological method, the operation also needing to carry out blade root cutting and boring after the blade demoulding can be avoided, shorten technological process, improve yield rate, decrease station, improve manufacturing efficiency.2. pre embedded bolt is combined tightr with wind generator set blade.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a megawatt wind-power blade blade root screw pre-buried technological method, is characterized in that: the method comprises the following steps:
(1) blade root flange plate is installed: alignd with mould flange Ge Kong center at each flange hole center of blade root flange plate;
(2) pre embedded bolt and nut are installed: the pre embedded bolt penetrating respective numbers in the flange hole of blade root flange plate, and are fixed with nut;
(3) UD is enclosed within pre embedded bolt;
(4) penetrated by bolt sleeve in UD cover, bolt sleeve need be placed perpendicular to blade root flange plate;
(5) tighten after pre embedded bolt being penetrated bolt sleeve away from one end of nut, the threaded end of pre embedded bolt and bolt sleeve is formed fixing;
(6) threaded end of bolt sleeve is penetrated in PVC chock;
(7) PVC chock card is placed on the outside of UD band, and by UD band and the compacting of PVC chock;
(8) put into UD rod in the inner side of UD band, UD rod is filled between adjacent bolt sleeve, and hits tight with hammer, UD band fills up with the gap UD silk of UD rod and bolt sleeve.
2. megawatt wind-power blade blade root screw pre-buried technological method according to claim 1, it is characterized in that: in step (6), before bolt sleeve is penetrated PVC chock, bolt is screwed into by this end-enclosed at the threaded end of bolt sleeve, then bolt penetrates in PVC chock with the threaded end of bolt sleeve, is formed fixing with PVC chock.
3. megawatt wind-power blade blade root screw pre-buried technological method according to claim 2, it is characterized in that: described blade root flange plate internal diameter is 1.697 meters, external diameter is 1.886 meters, flange plate has 27 flange holes altogether, flange hole center is to flange distance of center circle from being 0.9 meter, and the radian between flange hole is 6.67 °.
4. megawatt wind-power blade blade root screw pre-buried technological method according to claim 3, it is characterized in that: in step (1), with blade root flange plate the 14th flange hole center for basic point, is alignd with mould flange Ge Kong center in each flange hole center of blade root flange plate.
5. megawatt wind-power blade blade root screw pre-buried technological method as claimed in any of claims 1 to 4, is characterized in that: the material of UD cover is 0 ° of glass-fiber-fabric.
6. megawatt wind-power blade blade root screw pre-buried technological method as claimed in any of claims 1 to 4, is characterized in that: the outer surface of pre embedded bolt is wound with glass fibre.
7. megawatt wind-power blade blade root screw pre-buried technological method as claimed in any of claims 1 to 4, it is characterized in that: the two ends of pre embedded bolt are thread section, its thread size is M30 × 3.5, and glass fiber winding is on non-threaded section of pre embedded bolt.
8. megawatt wind-power blade blade root screw pre-buried technological method as claimed in any of claims 1 to 4, it is characterized in that: the material of PVC chock is PVC foam, the gradient of PVC chock is 1:7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023996.3A CN103061995B (en) | 2013-01-22 | 2013-01-22 | Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023996.3A CN103061995B (en) | 2013-01-22 | 2013-01-22 | Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061995A CN103061995A (en) | 2013-04-24 |
| CN103061995B true CN103061995B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310023996.3A Active CN103061995B (en) | 2013-01-22 | 2013-01-22 | Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set |
Country Status (1)
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| CN (1) | CN103061995B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3121441A1 (en) * | 2015-07-22 | 2017-01-25 | General Electric Company | Rotor blade root assembly for a wind turbine |
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| CN103344463A (en) * | 2013-05-22 | 2013-10-09 | 国电联合动力技术有限公司 | Blade embedded test piece of blower fan and manufacturing method thereof |
| CN104444578B (en) * | 2014-10-23 | 2017-03-22 | 中材科技风电叶片股份有限公司 | Automatic multi-axis yarn winding machine and closed-loop control yarn winding method adopted through automatic multi-axis yarn winding machine |
| US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
| CN106484950B (en) * | 2016-09-14 | 2019-07-09 | 吉林重通成飞新材料股份公司 | Megawatt wind-power blade pre-embedded bolt Analysis of Nested Design method |
| CN106438195A (en) * | 2016-10-26 | 2017-02-22 | 中材科技风电叶片股份有限公司 | Root structure of wind power blade and manufacturing method thereof and wind power blade |
| CN106738500B (en) * | 2016-12-01 | 2019-02-15 | 株洲时代新材料科技股份有限公司 | A kind of installation detection method of wind-powered blade mold pre-embedded bolt flange tooling |
| CN106762462B (en) * | 2016-12-29 | 2018-04-24 | 北京金风科创风电设备有限公司 | Bolt sleeve connecting piece, blade manufacturing method and wind generating set |
| US10046515B1 (en) | 2017-03-30 | 2018-08-14 | General Electric Company | Method of forming wind turbine rotor blade root portions |
| US11167507B2 (en) | 2018-03-16 | 2021-11-09 | General Electric Company | Method for manufacturing a wind turbine rotor blade root assembly |
| CN109296507B (en) * | 2018-10-15 | 2020-09-25 | 株洲时代新材料科技股份有限公司 | Wind power composite material blade root embedded connection structure and wind power generation equipment |
| CN109383049B (en) * | 2018-11-23 | 2023-09-22 | 明阳智慧能源集团股份公司 | Wind power blade embedded screw sleeve test piece and test authentication method realized by using same |
| CN109648894A (en) * | 2018-12-28 | 2019-04-19 | 连云港中复连众复合材料集团有限公司 | A kind of production method of the wind blade root prefabricated component of the set containing pre-embedded bolt |
| CN111619043A (en) * | 2020-06-15 | 2020-09-04 | 三一重能有限公司 | Preparation mold and preparation method for blade root of fan blade and blade root of fan blade |
| CN113733607B (en) * | 2021-09-24 | 2022-09-09 | 吉林重通成飞新材料股份公司 | Preparation method of wind power blade |
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| WO2012140048A2 (en) * | 2011-04-11 | 2012-10-18 | Lm Wind Power A/S | Wind turbine blade having a root region with elongated fastening members provided with metal fibres |
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| CN101413479A (en) * | 2008-11-25 | 2009-04-22 | 上海应用技术学院 | Wind power machine pre-embedded type flange blade root and manufacturing process thereof |
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| EP3121441A1 (en) * | 2015-07-22 | 2017-01-25 | General Electric Company | Rotor blade root assembly for a wind turbine |
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| CN103061995A (en) | 2013-04-24 |
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Denomination of invention: Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set Effective date of registration: 20171020 Granted publication date: 20150603 Pledgee: Chongqing mechanical and electrical Holding Group Finance Co., Ltd. Pledgor: CHONGQING ZHONGTONG CHENGFEI NEW MATERIAL CO., LTD. Registration number: 2017980000429 |
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Denomination of invention: Pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set Effective date of registration: 20181025 Granted publication date: 20150603 Pledgee: Chongqing mechanical and electrical Holding Group Finance Co., Ltd. Pledgor: CHONGQING ZHONGTONG CHENGFEI NEW MATERIAL CO., LTD. Registration number: 2018980000203 |
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Effective date of registration: 20200812 Address after: 733017 Wuwei new energy equipment manufacturing industry zone, Yongchang Town, Liangzhou District, Gansu, Wuwei Patentee after: GANSU ZHONGTONG CHENGFEI NEW MATERIAL Co.,Ltd. Address before: 402260 Chongqing City District Luohuang Jiangjin Zhen Guo Ba Cun Yu He Gou Anjufang small block 2-7 No. 2 Patentee before: CHONGQING CQGI CHENGFEI NEW MATERIAL Co.,Ltd. |