CN103264510B - Molding method of embedded bolt sleeve at root of fan blade - Google Patents
Molding method of embedded bolt sleeve at root of fan blade Download PDFInfo
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- CN103264510B CN103264510B CN201310206184.2A CN201310206184A CN103264510B CN 103264510 B CN103264510 B CN 103264510B CN 201310206184 A CN201310206184 A CN 201310206184A CN 103264510 B CN103264510 B CN 103264510B
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- bolt sleeve
- embedded bolt
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- bolt
- blade
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000000465 moulding Methods 0.000 title claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000011049 filling Methods 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 11
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000001723 curing Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
The invention discloses a molding method of an embedded bolt sleeve at the root of a fan blade. The method comprises the following steps of: preparing a single embedded bolt sleeve prefabricated block and then arraying the embedded bolt sleeve prefabricated block at the root of a blade mould; fixing the embedded bolt sleeve prefabricated block on a blade mould positioning flange by using a bolt; and finally, entirely filling, curing and molding the embedded bolt sleeve prefabricated block and the blade. According to the molding method disclosed by the invention, a preparation process of utilizing a plurality of experiments to screen the embedded bolt sleeve prefabricated block is used, the maneuverability of the whole process is strong, the industrial degree is high, the positioning accuracy is high, the bonding and fastening degree is high and the reliability is strong; a plurality of disadvantages of a conventional T-shaped bolt connection manner in the prior art can be overcome; and the problems that the operation of an entire body prefabrication process of the embedded bolt sleeve is difficult, defects of products can occur easily, and the like can be solved. The single embedded bolt sleeve prefabricated block disclosed by the invention can be firstly manufactured in a single mould and a blade shell main mould does not need to be occupied, so that the production efficiency is high.
Description
Technical field
The present invention relates to a kind of wind power generator blade root and connect forming method, be specifically related to a kind of root of fan blade pre-embedded bolt sleeve forming method.
Background technology
Wind energy uses one of regenerative resource the most extensive and with fastest developing speed in the world.Along with the development of World Economics, wind energy market also develops rapidly.
Along with the development of wind-power electricity generation, the summation of the wind-driven generator of land has started to be tending towards saturated, and Wind Power Plant at Sea becomes new important energy source exploration project; Along with reaching its maturity of modern wind generation technology development, wind power generating set just keeps the large-scale development.Along with fan blade length, MW class constantly increase, fan blade load is also increasing.Along with the increase of blade root load, "T"-shaped bolt connecting mode conventional in prior art cannot design too many bolt, larger in blade root load, when bolt quantity requires more, "T"-shaped bolt can not meet the requirement of wind-driven generator high reliability, and it is not high that existing traditional "T"-shaped punching bolt connects positioning precision, and be difficult to control.
Therefore, on the basis of existing technology necessary, research and develop a kind of registration, connect reliable and stable, the root of fan blade pre-embedded bolt sleeve forming method of strong operability.
Summary of the invention
Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, provide a kind of workable, adhesive property is reliable, positioning precision is high, controllability is good, and bonding strength is high, effectively can solve the root of fan blade pre-embedded bolt sleeve forming method of integral prefabricated technological operation difficulty.
Technical scheme: in order to realize object of the present invention, the technical solution used in the present invention is:
A kind of root of fan blade pre-embedded bolt sleeve forming method, it comprises the following steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, first get bolt sleeve, magnadure wedge metal part is connected at the end of bolt sleeve, and at the PVC(polyvinyl chloride of the central filler of magnadure wedge metal part) foam, blasting treatment is carried out to the outer surface of bolt sleeve and magnadure wedge metal part, increase the roughness on bolt sleeve and magnadure wedge metal part surface, then soak the coarse sand of resin at bolt sleeve surface wrap;
B, that gets pre-embedded bolt cover prepares mould, preparing smearing release agent in mould, then preparing the axial cloth of glass fibre three first laying 10 ~ 15 layers of pre-soaked resin in mould, then the bolt sleeve having soaked resin coarse sand is had by the surface wrap that step a prepares to be placed on the axial cloth of glass fibre three of the pre-soaked resin prepared in mould, then filling bolt sleeve peripheral clearance is laid with the coarse sand soaking resin along the length direction of bolt sleeve, the axial cloth of glass fibre three of 5 ~ 10 layers of pre-soaked resin is used to be laid on the upper surface of bolt sleeve again, make the surfacing of bolt sleeve prefabricated section, curing and demolding, pre-embedded bolt cover prefabricated section is obtained by dimensional requirement refacing,
Pre-embedded bolt is overlapped prefabricated section and is arranged in root of blade, with bolt, pre-embedded bolt is overlapped prefabricated section and be fixed on the locating flange of blade mold root, positional accuracy is high, finally pre-embedded bolt is overlapped prefabricated section and blade integral pours into curing molding.
Preferably, above-described root of fan blade pre-embedded bolt sleeve forming method, described resin is epoxy resin.
Preferably, above-described root of fan blade pre-embedded bolt sleeve forming method, described bolt sleeve adopts 42CrMoA steel alloy to make, and has high strength, and stable connection is reliable, can meet the needs that fan blade top load runs.And bolt sleeve size requires to design bolt sleeve size according to root of fan blade size and bolt quantity.
Root of fan blade pre-embedded bolt sleeve forming method provided by the invention, wherein bolt sleeve end connecting aluminum alloy wedge metal part, can ensure that swivel nut end seamlessly transits, and increases the degree that is connected firmly.Bolt sleeve outer surface of the present invention has sufficient bonding plane with the coarse sand being soaked with resin, can effectively avoid bonding gap and hole, improves the bonding reliability energy of bolt sleeve.
Root of fan blade pre-embedded bolt sleeve forming method of the present invention, being prepared in independent mould of pre-embedded bolt cover first manufactures, and without the need to taking the main mould of blade shell, can effectively improve production efficiency.
In pre-embedded bolt cover preparation process of the present invention, the intensity needs that the present invention overlaps according to pre-embedded bolt, adopt three axial cloth to lay, and screen the number of plies of the axial cloth of glass fibre three of pre-soaked resin through great many of experiments, experimental result shows, when the axial cloth of glass fibre three of laying 10 ~ 15 layers of pre-soaked resin, the needs of tensile strength can not only be met, and energy global formation, can not layering, have firmly bonding, intensity is high, robust advantage.
Beneficial effect: compared to the prior art root of fan blade pre-embedded bolt sleeve forming method provided by the invention has the following advantages:
Invent the root of fan blade pre-embedded bolt sleeve forming method provided, by the preparation technology of great many of experiments screening pre-embedded bolt cover prefabricated section, whole process operability is strong, and industrialization degree is high, and production efficiency is high, applied widely; Adopting bolt pre-embedded bolt to be overlapped prefabricated section is fixed on the locating flange of blade mold root, finally pre-embedded bolt is overlapped prefabricated section and blade integral pours into curing molding, positional accuracy is high, be connected firmly, bonding firmness is high, reliability is strong, can overcome many deficiencies that prior art relies on traditional "T"-shaped bolt connecting mode.And pre-embedded bolt cover provided by the invention first can manufacture in independent mould, without the need to taking the main mould of blade shell, production efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of pre-embedded bolt of the present invention cover prefabricated section.
Fig. 2 is root of fan blade pre-embedded bolt cover overall structure schematic diagram.
detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
A kind of root of fan blade pre-embedded bolt sleeve forming method, comprises the following steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, first get bolt sleeve (1), magnadure wedge metal part (4) is connected at the end of bolt sleeve (1), and at the PVC foam (5) of the central filler of magnadure wedge metal part (4), blasting treatment is carried out to bolt sleeve (1) and the outer surface of magnadure wedge metal part (4), increase bolt sleeve (1) and the roughness on magnadure wedge metal part (4) surface, then soak the coarse sand (2) of resin at bolt sleeve (1) surface wrap;
B, that gets pre-embedded bolt cover prepares mould, preparing smearing release agent in mould, then preparing the axial cloth of glass fibre three (3) first laying 10 ~ 15 layers of pre-soaked resin in mould, then the bolt sleeve (1) having soaked resin coarse sand (2) is had by the surface wrap that step a prepares to be placed on the axial cloth of glass fibre three (3) of the pre-soaked resin prepared in mould, then filling bolt sleeve (1) peripheral clearance is laid with the coarse sand soaking resin (2) along the length direction of bolt sleeve (1), the axial cloth of glass fibre three (3) of 5 ~ 10 layers of pre-soaked resin is used to be laid on the upper surface of bolt sleeve (1) again, make bolt sleeve (1) prefabricated section surfacing, curing and demolding, pre-embedded bolt cover prefabricated section is obtained by dimensional requirement refacing, as shown in Figure 1,
Pre-embedded bolt is overlapped prefabricated section and is arranged in root of blade, with bolt, pre-embedded bolt cover is fixed on the locating flange of blade mold root, finally pre-embedded bolt is overlapped prefabricated section and blade integral pours into curing molding, as shown in Figure 2.
Above-described root of fan blade pre-embedded bolt sleeve forming method, described bolt sleeve (1) adopts 42CrMoA steel alloy to make.
Above-described root of fan blade pre-embedded bolt sleeve forming method, described resin is epoxide resin material.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a root of fan blade pre-embedded bolt sleeve forming method, is characterized in that comprising the following steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, first get bolt sleeve (1), magnadure wedge metal part (4) is connected at the end of bolt sleeve (1), and at the central filler PVC foam (5) of magnadure wedge metal part (4), blasting treatment is carried out to bolt sleeve (1) and the outer surface of magnadure wedge metal part (4), increase bolt sleeve (1) and the roughness on magnadure wedge metal part (4) surface, then soak the rove (2) of resin at bolt sleeve (1) surface wrap;
B, that gets pre-embedded bolt cover prepares mould, preparing smearing release agent in mould, then preparing the axial cloth of glass fibre three (3) first laying 10 ~ 15 layers of pre-soaked resin in mould, then the bolt sleeve (1) having soaked resin rove (2) is had by the surface wrap that step a prepares to be placed on the axial cloth of glass fibre three (3) of the pre-soaked resin prepared in mould, then filling bolt sleeve (1) peripheral clearance is laid with the rove soaking resin (2) along the length direction of bolt sleeve (1), the axial cloth of glass fibre three (3) of 5 ~ 10 layers of pre-soaked resin is used to be laid on the upper surface of bolt sleeve (1) again, make bolt sleeve (1) prefabricated section surfacing, curing and demolding, pre-embedded bolt cover prefabricated section is obtained by dimensional requirement refacing,
Pre-embedded bolt is overlapped prefabricated section and is arranged in root of blade, with bolt, pre-embedded bolt is overlapped prefabricated section and be fixed on the locating flange of blade mold root, finally pre-embedded bolt is overlapped prefabricated section and blade integral pours into curing molding.
2. root of fan blade pre-embedded bolt sleeve forming method according to claim 1, is characterized in that, described bolt sleeve (1) adopts 42CrMoA steel alloy to make.
3. root of fan blade pre-embedded bolt sleeve forming method according to claim 1, is characterized in that, described resin is epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206184.2A CN103264510B (en) | 2013-05-29 | 2013-05-29 | Molding method of embedded bolt sleeve at root of fan blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206184.2A CN103264510B (en) | 2013-05-29 | 2013-05-29 | Molding method of embedded bolt sleeve at root of fan blade |
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| Publication Number | Publication Date |
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| CN103264510A CN103264510A (en) | 2013-08-28 |
| CN103264510B true CN103264510B (en) | 2015-04-15 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909662B (en) * | 2014-04-28 | 2016-01-13 | 连云港中复连众复合材料集团有限公司 | A kind of method of the root of fan blade pre-embedded bolt cover adopting pultrude process to manufacture |
| 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 |
| CN104859160B (en) * | 2015-05-29 | 2018-09-25 | 连云港中复连众复合材料集团有限公司 | It is suitble to the root of fan blade pre-embedded bolt set and preparation method thereof of pultrude process |
| 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 |
| CN112209170B (en) * | 2020-10-28 | 2021-09-07 | 常州市新创智能科技有限公司 | Method for automatically winding glass fiber of metal bolt based on servo control |
| CN113320193B (en) * | 2021-05-31 | 2022-11-25 | 国电联合动力技术(保定)有限公司 | Wind power blade root layering structure and manufacturing method thereof |
| CN113601672B (en) * | 2021-08-12 | 2024-07-02 | 中电建成都混凝土制品有限公司 | Shield constructs thick plastering device of section of jurisdiction concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1486415A1 (en) * | 2003-06-12 | 2004-12-15 | SSP Technology A/S | Wind turbine blade and method of manufacturing a blade root |
| CN201165933Y (en) * | 2008-03-20 | 2008-12-17 | 中航惠腾风电设备股份有限公司 | Wind electric blade bolt sleeve pre-embedded molding structure |
| CN201321947Y (en) * | 2008-11-28 | 2009-10-07 | 上海玻璃钢研究院有限公司 | Screw pre-buried mechanism at composite vane butt of wind generating set |
| CN101865092B (en) * | 2009-04-14 | 2012-01-11 | 上海艾郎风电科技发展有限公司 | Method for mounting and positioning megawatt wind-power blade root end bolt |
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Effective date of registration: 20231121 Address after: 9th Floor, Block C, Building B6, Dongsheng Science and Technology Park, No. 66 Xixiaokou Road, Haidian District, Beijing, 100192 Patentee after: SINOMATECH WIND POWER BLADE Co.,Ltd. Address before: Lianyungang City, Jiangsu province 222006 Lian Hai Road No. 195 Patentee before: LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GROUP Co.,Ltd. |
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