CN103264510A - 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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- CN103264510A CN103264510A CN2013102061842A CN201310206184A CN103264510A CN 103264510 A CN103264510 A CN 103264510A CN 2013102061842 A CN2013102061842 A CN 2013102061842A CN 201310206184 A CN201310206184 A CN 201310206184A CN 103264510 A CN103264510 A CN 103264510A
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- bolt sleeve
- embedded bolt
- bolt
- embedded
- root
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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 19
- 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
- 239000004576 sand Substances 0.000 claims description 10
- 230000010412 perfusion Effects 0.000 claims description 4
- 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
- 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
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 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
- 238000005516 engineering process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 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
- 238000012216 screening Methods 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
- 238000010248 power generation Methods 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
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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 blade of wind-driven generator root and connect forming method, be specifically related to a kind of fan blade root pre-embedded bolt sleeve forming method.
Background technology
Wind energy is to use 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 continuous development of wind-power electricity generation, the summation of the wind-driven generator of land has begun to be tending towards saturated, and the Oversea wind power generation field becomes new important energy source exploration project; Along with reaching its maturity of modern wind generation technology development, wind power generating set is just constantly to large scale development.Along with fan blade length, MW class constantly increase, fan blade load is also increasing.Increase along with blade root load, "T"-shaped bolt connecting mode commonly used in the prior art can't design too many bolt, bigger in blade root load, under the more situation of bolt quantitative requirement, "T"-shaped bolt can not satisfy the requirement of wind-driven generator high reliability, and it is not high that existing traditional "T"-shaped punching bolt connects positioning accuracy, and be difficult to control.
Therefore, on the basis of existing technology necessary, it is accurate to research and develop a kind of location, connect reliable and stable, the fan blade root pre-embedded bolt sleeve forming method of strong operability.
Summary of the invention
Goal of the invention: the objective of the invention is provides a kind of workable in order to solve the deficiencies in the prior art, and adhesive property is reliable, the positioning accuracy height, controllability is good, and the bonding strength height can effectively solve the fan blade root pre-embedded bolt sleeve forming method of integral prefabricated technological operation difficulty.
Technical scheme: in order to realize purpose of the present invention, the technical solution used in the present invention is:
A kind of fan blade root pre-embedded bolt sleeve forming method, it may further comprise the steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, at first get bolt sleeve, end at bolt sleeve connects magnadure wedge metal part, and the PVC(polyvinyl chloride of in the middle of magnadure wedge metal part, filling) foam, outer surface to bolt sleeve and magnadure wedge metal part carries out blasting treatment, increase the roughness on bolt sleeve and magnadure wedge metal part surface, twine the coarse sand that has soaked resin on the bolt sleeve surface then;
B, get the preparation mould of pre-embedded bolt cover, in the preparation mould, smear releasing agent, in the preparation mould, lay the glass fibre three axial cloth of 10 ~ 15 layers of pre-soaked resin then earlier, the surface that step a is prepared is wound with the bolt sleeve that has soaked the resin coarse sand and is placed on the glass fibre three axial cloth of the pre-soaked resin of preparation in the mould then, lay along the length direction of bolt sleeve with the coarse sand that has soaked resin then and fill bolt sleeve peripheral clearance, use the glass fibre three axial cloth of 5 ~ 10 layers of pre-soaked resin to be laid on the upper surface of bolt sleeve again, make the surfacing of bolt sleeve prefabricated section, curing and demolding obtains pre-embedded bolt cover prefabricated section by the dimensional requirement refacing;
Pre-embedded bolt is overlapped prefabricated section be arranged in root of blade, with bolt pre-embedded bolt is overlapped on the locating flange that prefabricated section is fixed on the blade mold root, the positional accuracy height overlaps pre-embedded bolt prefabricated section and blade integral perfusion curing molding at last.
As preferred version, above-described fan blade root pre-embedded bolt sleeve forming method, described resin is epoxy resin.
As preferred version, above-described fan blade root pre-embedded bolt sleeve forming method, described bolt sleeve adopt the 42CrMoA steel alloy to make, and have high strength, connect reliable and stablely, can satisfy the needs that the fan blade top load moves.And the bolt sleeve size is according to fan blade root size and bolt quantitative requirement design bolt sleeve size.
Fan blade root pre-embedded bolt sleeve forming method provided by the invention, wherein the terminal aluminium alloy wedge metal part that connects of bolt sleeve can guarantee that the 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 that is soaked with resin, can effectively avoid bonding slit and hole, improves the bonding unfailing performance of bolt sleeve.
Fan blade root pre-embedded bolt sleeve forming method of the present invention, the preparation of pre-embedded bolt cover need not to take blade shell master mould making earlier in the mould separately, can effectively improve production efficient.
In the pre-embedded bolt cover preparation process of the present invention, the present invention adopts three axial cloth to lay according to the intensity needs of pre-embedded bolt cover, and the number of plies of the glass fibre three axial cloth of a large amount of experiment screening pre-soaked resins of process, experimental result shows, when the glass fibre three axial cloth of laying 10 ~ 15 layers of pre-soaked resin, can not only meet the needs of tensile strength, and the energy global formation, can layering, have bonding firmly, intensity height, robust advantage.
Beneficial effect: fan blade root pre-embedded bolt sleeve forming method provided by the invention is compared with prior art and is had the following advantages:
The fan blade root pre-embedded bolt sleeve forming method that invention provides, by the preparation technology of a large amount of experiment screening pre-embedded bolt cover prefabricated sections, whole technology is workable, the industrialization degree height, the production efficiency height, the scope of application is extensive; Adopt bolt that pre-embedded bolt is overlapped on the locating flange that prefabricated section is fixed on the blade mold root, at last pre-embedded bolt is overlapped prefabricated section and blade integral perfusion curing molding, the positional accuracy height, be connected firmly, firm degree height bonds, good reliability can overcome many deficiencies that prior art relies on traditional "T"-shaped bolt connecting mode.And pre-embedded bolt cover provided by the invention can need not to take blade shell master mould making earlier in the mould separately, and production efficiency is higher.
Description of drawings
Fig. 1 is the structural representation of pre-embedded bolt cover prefabricated section of the present invention.
Fig. 2 is fan blade root pre-embedded bolt cover overall structure schematic diagram.
The specific embodiment:
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
A kind of fan blade root pre-embedded bolt sleeve forming method may further comprise the steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, at first get bolt sleeve (1), end at bolt sleeve (1) connects magnadure wedge metal part (4), and the PVC foam (5) of in the middle of magnadure wedge metal part (4), filling, outer surface to bolt sleeve (1) and magnadure wedge metal part (4) carries out blasting treatment, increase bolt sleeve (1) roughness surperficial with magnadure wedge metal part (4), twine the coarse sand (2) that has soaked resin on bolt sleeve (1) surface then;
B, get the preparation mould of pre-embedded bolt cover, in the preparation mould, smear releasing agent, in the preparation mould, lay the glass fibre three axial cloth (3) of 10 ~ 15 layers of pre-soaked resin then earlier, the surface that step a is prepared is wound with the bolt sleeve (1) that has soaked resin coarse sand (2) and is placed on the glass fibre three axial cloth (3) of the pre-soaked resin of preparation in the mould then, lay along the length direction of bolt sleeve (1) with the coarse sand (2) that has soaked resin then and fill bolt sleeve (1) peripheral clearance, use the glass fibre three axial cloth (3) of 5 ~ 10 layers of pre-soaked resin to be laid on the upper surface of bolt sleeve (1) again, make bolt sleeve (1) prefabricated section surfacing, curing and demolding obtains pre-embedded bolt cover prefabricated section by the dimensional requirement refacing; As shown in Figure 1;
Pre-embedded bolt is overlapped prefabricated section be arranged in root of blade, the pre-embedded bolt cover is fixed on the locating flange of blade mold root with bolt, at last pre-embedded bolt is overlapped prefabricated section and blade integral perfusion curing molding, as shown in Figure 2.
Above-described fan blade root pre-embedded bolt sleeve forming method, described bolt sleeve (1) adopt the 42CrMoA steel alloy to make.
Above-described fan blade root pre-embedded bolt sleeve forming method, described resin is epoxide resin material.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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. fan blade root pre-embedded bolt sleeve forming method is characterized in that may further comprise the steps:
The preparation of pre-embedded bolt cover prefabricated section:
A, at first get bolt sleeve (1), end at bolt sleeve (1) connects magnadure wedge metal part (4), and the PVC foam (5) of in the middle of magnadure wedge metal part (4), filling, outer surface to bolt sleeve (1) and magnadure wedge metal part (4) carries out blasting treatment, increase bolt sleeve (1) roughness surperficial with magnadure wedge metal part (4), twine the coarse sand (2) that has soaked resin on bolt sleeve (1) surface then;
B, get the preparation mould of pre-embedded bolt cover, in the preparation mould, smear releasing agent, in the preparation mould, lay the glass fibre three axial cloth (3) of 10 ~ 15 layers of pre-soaked resin then earlier, the surface that step a is prepared is wound with the bolt sleeve (1) that has soaked resin coarse sand (2) and is placed on the glass fibre three axial cloth (3) of the pre-soaked resin of preparation in the mould then, lay along the length direction of bolt sleeve (1) with the coarse sand (2) that has soaked resin then and fill bolt sleeve (1) peripheral clearance, use the glass fibre three axial cloth (3) of 5 ~ 10 layers of pre-soaked resin to be laid on the upper surface of bolt sleeve (1) again, make bolt sleeve (1) prefabricated section surfacing, curing and demolding obtains pre-embedded bolt cover prefabricated section by the dimensional requirement refacing;
Pre-embedded bolt is overlapped prefabricated section be arranged in root of blade, with bolt pre-embedded bolt is overlapped on the locating flange that prefabricated section is fixed on the blade mold root, at last pre-embedded bolt is overlapped prefabricated section and blade integral perfusion curing molding.
2. fan blade root pre-embedded bolt sleeve forming method according to claim 1 is characterized in that, described bolt sleeve (1) adopts the 42CrMoA steel alloy to make.
3. fan blade root 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 true CN103264510A (en) | 2013-08-28 |
| CN103264510B CN103264510B (en) | 2015-04-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909662A (en) * | 2014-04-28 | 2014-07-09 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing embedded bolt sleeve at root of fan blade by pultrusion process |
| CN104444578A (en) * | 2014-10-23 | 2015-03-25 | 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 |
| CN106762462A (en) * | 2016-12-29 | 2017-05-31 | 北京金风科创风电设备有限公司 | Bolt sleeve connecting piece, wind driven generator blade, manufacturing method and wind driven generator |
| 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 |
| CN112209170A (en) * | 2020-10-28 | 2021-01-12 | 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 |
| CN113320193A (en) * | 2021-05-31 | 2021-08-31 | 国电联合动力技术(保定)有限公司 | Wind power blade root layering structure and manufacturing method thereof |
| CN113601672A (en) * | 2021-08-12 | 2021-11-05 | 中电建成都混凝土制品有限公司 | Shield constructs section of jurisdiction concrete rough surface device |
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Patent Citations (4)
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| US20070065288A1 (en) * | 2003-06-12 | 2007-03-22 | Flemming Sorensen | Wind turbine blade and method of manufacturing thereof |
| 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 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909662A (en) * | 2014-04-28 | 2014-07-09 | 连云港中复连众复合材料集团有限公司 | Method for manufacturing embedded bolt sleeve at root of fan blade by pultrusion process |
| CN104444578A (en) * | 2014-10-23 | 2015-03-25 | 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 |
| CN106762462A (en) * | 2016-12-29 | 2017-05-31 | 北京金风科创风电设备有限公司 | Bolt sleeve connecting piece, wind driven generator blade, manufacturing method and wind driven generator |
| 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 |
| WO2018120677A1 (en) * | 2016-12-29 | 2018-07-05 | 北京金风科创风电设备有限公司 | Bolt sleeve connector, blade and manufacturing method of blade, and wind turbine set |
| US11339761B2 (en) | 2016-12-29 | 2022-05-24 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Bolt sleeve connector, blade and manufacturing method thereof and wind turbine generator system |
| CN112209170A (en) * | 2020-10-28 | 2021-01-12 | 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 |
| 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 |
| CN113320193A (en) * | 2021-05-31 | 2021-08-31 | 国电联合动力技术(保定)有限公司 | Wind power blade root layering structure and manufacturing method thereof |
| CN113601672A (en) * | 2021-08-12 | 2021-11-05 | 中电建成都混凝土制品有限公司 | Shield constructs section of jurisdiction concrete rough surface device |
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|---|---|
| CN103264510B (en) | 2015-04-15 |
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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. |