CN202597411U - Wire thread insert assembly, vane and wind power generating unit - Google Patents
Wire thread insert assembly, vane and wind power generating unit Download PDFInfo
- Publication number
- CN202597411U CN202597411U CN2012202217692U CN201220221769U CN202597411U CN 202597411 U CN202597411 U CN 202597411U CN 2012202217692 U CN2012202217692 U CN 2012202217692U CN 201220221769 U CN201220221769 U CN 201220221769U CN 202597411 U CN202597411 U CN 202597411U
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- Prior art keywords
- steel
- blade
- wire screw
- socket assembly
- socket
- 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.)
- Expired - Lifetime
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- 239000000463 material Substances 0.000 claims abstract description 12
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- 239000003292 glue Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 239000007799 cork Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 19
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- 239000007779 soft material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a wire thread insert assembly, a vane and a wind power generating unit. The wire thread insert assembly comprises a wire thread insert which is provided with an inner threaded hole and a winding layer which is made of a flexible material, wherein the winding layer is closely wound on the outer side of a thread main body. According to the wire thread insert assembly, the vane and the wind power generating unit provided by the technical scheme, under the situation that the vane root design strength, the rigidness and the bearing capacity are satisfied, the additional mass of the vane root can be reduced, and the diameter and the thickness of the vane root also can be reduced.
Description
Technical field
The utility model relates to wind generating technology, relates in particular to a kind of steel-wire screw-socket assembly, blade and wind power generating set.
Background technique
Wind power generating set comprises the tower tube that fixedly installs, and the cabin by the tower tube supports with the wheel hub that the cabin main shaft is fixedly connected, is arranged on the blade on the wheel hub.The part that is fixedly connected with wheel hub on the blade is a blade root portion, is blade tip away from the part of wheel hub on the blade.Blade is one of of paramount importance parts in the wind-powered electricity generation unit, and the quality of Blade Properties will directly influence the quality of complete machine.With regard to blade research, leaf root part is the top-priority part of structural design, because leaf root part not only will be born the weight and the various load of whole blade, and is the most directly connected element that blade and other parts of blower fan are got in touch.
In existing technology, blade and wheel hub be connected with dual mode: the first, use T type bolt.Be specially: after blade processing is accomplished, beat T type hole, remove the shared material of T type bolt, and T type bolt is packed into, last filler, shop cloth sealing at root of blade.The second, use embedded nut or swivel nut.Be specially: in the process that root of blade is made, metal nuts or swivel nut are imbedded, added foam wedge in circumferential direction in the middle of the embedded part.
Use the method for T type bolt to have following problems: to use T type bolt not only can destroy the original fibrous structure of root of blade, reduce the strength and stiffness of blade greatly, simultaneously because the material of removing is more, so additional metallic material weight is also bigger.When design, just inevitable will strengthen the blade root diameter and increase blade root thickness like this.
The model utility content
The utility model provides a kind of steel-wire screw-socket assembly, blade and wind power generating set, is used to reduce the quality that blade root portion increases, and optimizes blade structure.
The utility model provides a kind of steel-wire screw-socket assembly, wherein, comprising:
Steel-wire screw-socket has interior threaded hole;
Winding layer is flexible material, and said winding layer closely is wrapped in the said screw thread body outside.
Aforesaid steel-wire screw-socket assembly, preferably,
Said interior threaded hole is a through hole, and a side opening of said interior threaded hole is blocked by the light body piece of polyvinyl chloride foam or cork; And/or blocked adhesive tape on the opposite side opening.
Aforesaid steel-wire screw-socket assembly, preferably, said winding layer extends the outside that is wrapped in said light body piece.
Aforesaid steel-wire screw-socket assembly, preferably, said winding layer is a fibre cloth.
Aforesaid steel-wire screw-socket assembly preferably, is soaked with the glue layer that can solidify on said steel-wire screw-socket and the said winding layer.
The utility model also provides a kind of blade, and wherein, the blade root portion of said blade is provided with several pre-buried holes, is embedded with the steel-wire screw-socket assembly that the utility model provides arbitrarily in each said pre-buried hole.
Aforesaid blade, preferably, each said pre-buried hole is positioned on the pitch circle of blade root portion of said blade, and evenly distributes.
Aforesaid blade preferably, also comprises and lays layer and several voussoirs, and each said voussoir is between two adjacent said steel-wire screw-socket assemblies, and said laying layer is laid on each said steel-wire screw-socket assembly outside successively, and through each said voussoir.
Aforesaid blade preferably, is provided with 5-10 said voussoir between two adjacent said steel-wire screw-socket assemblies.
Aforesaid blade, preferably, the inboard that said blade root portion is positioned at each said steel-wire screw-socket assembly is provided with inside panel, and/or the arranged outside that said blade root portion is positioned at each said steel-wire screw-socket assembly has exterior skin.
The utility model provides a kind of wind power generating set again, wherein, has the blade that the utility model provides arbitrarily.
Steel-wire screw-socket assembly, blade and wind power generating set that technique scheme provides under the situation that satisfies blade root design strength, rigidity and bearing capacity, can alleviate the associated mass of blade root portion, can reduce the thickness of blade root diameter and blade root simultaneously.
Description of drawings
Fig. 1 a is the schematic representation of the steel-wire screw-socket assembly that provides of the utility model embodiment one;
Fig. 1 b is the left view of Fig. 1 a;
Fig. 2 a is the blade root bilge construction schematic representation of the blade that provides of the utility model embodiment two;
Fig. 2 b is the local enlarged diagram of the A of Fig. 2 a.
Embodiment
Referring to Fig. 1 a and Fig. 1 b, the utility model embodiment provides a kind of steel-wire screw-socket assembly, can be used for being embedded in the blade root portion 9 of blade or the operating mode of the pre-buried steel-wire screw-socket assembly of other needs, and wherein, the steel-wire screw-socket assembly comprises steel-wire screw-socket 1 and winding layer 2; Steel-wire screw-socket 1 has interior threaded hole 11; Winding layer 2 is a flexible material, and such as fibre cloth, winding layer 2 closely is wrapped in the screw thread body outside.
Here, fibre cloth is one of constituent of composite material, is used to improve the intensity of composite material.Closely be wrapped in the screw thread body outside so that it is wrapped up with fibre cloth here, purpose is to improve the intensity and the toughness of steel-wire screw-socket itself, forms a compound form nut, and then carries out pre-buried.Here, the form nut is meant that the steel-wire screw-socket assembly has interior threaded hole, and the steel-wire screw-socket assembly plays with nut and similarly acts on.The size of steel-wire screw-socket is determined that by desired join strength the size of steel-wire screw-socket comprises nominal diameter and Len req here.
To be embedded in blade root portion is example, offering the pre-buried hole of same size, in the existing technology; In order to guarantee pre-buried effect, the swivel nut that is filled in the pre-buried hole need be tried one's best near the size in pre-buried hole, but the steel-wire screw-socket assembly that is to use technique scheme to provide; Only need make the rigidity of steel-wire screw-socket satisfy usage requirement; Through being wrapped in the winding layer in the steel-wire screw-socket outside, make the size of whole steel-wire screw-socket assembly try one's best near the size in pre-buried hole, to guarantee pre-buried effect.So compared with prior art, the steel-wire screw-socket assembly that the utility model embodiment provides, quality is light, and can effectively guarantee intensity, rigidity and the antitorque commentaries on classics performance of blade root portion.
Further, interior threaded hole 11 is a through hole, and a side opening of interior threaded hole 11 is blocked by the light body piece 3 of polyvinyl chloride foam or cork; And/or blocked adhesive tape 4 on the opposite side opening.
A side opening that is blocked by light body piece 3 on the interior threaded hole 11 when pre-buried, as pre-buried bosom, in the using process, is no longer opened.Block the opposite side opening of adhesive tape 4 on the interior threaded hole 11, during use, can open adhesive tape 4, then construction bolt in the internal thread of steel-wire screw-socket 1.In the practical application, light body piece 3 can be PVC (Polyvinyl chloride polymer is called for short PVC) foam or cork.The fast quality of light body of above-mentioned material is light, and strength character is good, but is not limited only to this.
Further, winding layer 2 extends the outside that is wrapped in light body piece 3.Winding layer 2 is intertwined light body piece 3 with steel-wire screw-socket 1, can guarantee the performance that the steel-wire screw-socket assembly is whole.
Particularly, winding layer 2 is a fibre cloth.Fibre cloth is drawn materials conveniently, and quality is light, and toughness is good and continuity is good.
In order to make the one-piece type better of steel-wire screw-socket assembly, be soaked with the glue layer that can solidify on steel-wire screw-socket 1 and the winding layer 2.Glue immerses between steel-wire screw-socket 1 and the winding layer 2, and after the glue curing, the integrality of steel-wire screw-socket assembly strengthens, and is convenient to subsequent installation and uses.Need to prove, after the glue curing, use sharp shaped material,, clean out the impurity in the steel-wire screw-socket assembly interior threaded hole such as pin, guarantee supporting bolt in the interior threaded hole of steel-wire screw-socket assembly, screw smooth and easy, no Caton phenomenon.
The steel-wire screw-socket assembly that technique scheme provides, this steel-wire screw-socket assembly is embedded in blade root inside as the bolted nut of blade root portion, during use, is used to be connected blade and wheel hub together with bolt.The steel-wire screw-socket assembly that technique scheme provides; Can solve the wind power generating set blade root portion existing difficulty in connection area; The problem that the associated mass that the problem that the blade root portion intensity that the elimination cutting causes reduces, elimination use T type bolt or built-in metal nut to cause increases.In addition, can also effectively guarantee the strength and stiffness of root of blade, and reduce associated mass significantly.Adopt above-mentioned steel-wire screw-socket assembly, can design the blade thinner than traditional design method blade root thickness, that the blade root diameter is littler, also can play certain positive role the OVERALL OPTIMIZA-TION DESIGN FOR of blade.
Referring to Fig. 2 a and Fig. 2 b, the utility model embodiment two provides a kind of blade, and wherein, the blade root portion 9 of blade is provided with several pre-buried holes, is embedded with the steel-wire screw-socket assembly that the utility model any embodiment is provided in each pre-buried hole.
In the technique scheme, the steel-wire screw-socket assembly quality pre-buried owing to root of blade is light, so the quality of whole blade is also lighter.
Alternatively, each pre-buried hole is positioned on the pitch circle of blade root portion 9 of said blade, and evenly distributes.Pre-buried hole is set on the pitch circle of blade root portion 9, and highly skilled, machining accuracy is high.
Referring to Fig. 2 b; In order to guarantee that further the whole blade overall structure is more reasonable, blade also can comprise lays layer 5 and several voussoirs 6, and each voussoir 6 is between two adjacent steel-wire screw-socket assemblies; Lay layer 5 and be laid on each steel-wire screw-socket assembly outside successively, and through each voussoir 6.
Lay layer 5 and can be fibre cloth.After adopting above-mentioned setting type, the end face of blade root portion 9 is " hawkeye " shape, lay the connection and reasonable arrangement of layer 5, and continuity is good.
It is similar to be provided with the forming method of forming method and existing blade of the blade of laying layer and voussoir here.Lay layer such as being fibre cloth, fibre cloth is cut into corresponding piece, in layer laying is got on then, just as one pile of newspaper.After fibre cloth spread, through instruments such as anchor clamps it is held in the correct position, encapsulating in the middle of fibre cloth at last, final curing moulding.
Alternatively, be provided with 5-10 voussoir 6 between two adjacent steel-wire screw-socket assemblies.Here, be example so that 9 voussoirs 6 to be set, voussoir 6 sizes that are positioned at the pitch circle lateral direction are big, and voussoir 6 sizes that are positioned at the pitch circle side are little.
Further, the inboard that blade root portion 9 is positioned at each steel-wire screw-socket assembly is provided with inside panel 7, and/or the arranged outside that blade root portion 9 is positioned at each steel-wire screw-socket assembly has exterior skin 8.Here, be example so that inside panel 7 to be set simultaneously with exterior skin 8.Inside panel 7 is set can be so that the integrity of blade root portion 9 be better with exterior skin 8.
Introduce the manufacture process of steel-wire screw-socket assembly below and in the installation process of blade root portion.The manufacture process of steel-wire screw-socket assembly is following:
The steel-wire screw-socket of the bolt correspondingly-sized of join strength requirement is satisfied in step 1, selection, and the size of steel-wire screw-socket comprises nominal diameter and Len req;
After step 5, the glue curing, take the adhesive tape 4 of B end off, use sharp shaped material,, clean out the interior impurity of steel-wire screw-socket assembly tapped hole such as pin, guarantee supporting bolt in the steel-wire screw-socket assembly, screw smooth and easy, no Caton phenomenon;
The process that the above-mentioned steel-wire screw-socket assembly of making is installed in blade root portion is following:
Step 21, lay exterior skin 8 in blade root portion 9, exterior skin 8 can be fibre cloth here;
Step 22, the above-mentioned steel-wire screw-socket assembly of making is installed in the pre-buried hole on blade root portion 9 pitch circles, and the location;
Step 23, measure or confirm the circular gap between two steel-wire screw-socket assemblies, confirm to lay the quantity of layer 5 according to design; Lay layer 5 such as being the fiber layer of cloth here;
Step 24, confirm required voussoir 6 quantity and size, the material of voussoir 6 can foam or light and soft material such as cork wood;
Step 25, in successively laying around the steel-wire screw-socket assembly, lay layer 5, and alternately insert prefabricated voussoir 6;
Step 26, twine finish after, whether inspection exists defective, will lay layer 5 and the compacting of steel-wire screw-socket assembly after the affirmation, to guarantee to lay layers 5 external arc and interior arc-shaped surface is continuous, smooth is advisable;
Step 27, laying inside panel 7, the material of inside panel 7 also can be fibre cloth;
Step 28, through the mode of priming by vacuum, make blade forming.
After accomplishing above-mentioned steps,, promptly accomplish of the pre-buried operation of steel-wire screw-socket assembly in blade root portion with the blade matched moulds.
The blade that technique scheme provides has improved the strength and stiffness of blade root portion, has reduced the associated mass of blade root portion.Simultaneously,, will bring help, make it possible to design the thinner and littler blade of diameter of thickness the root of blade design because the size of steel-wire screw-socket assembly itself is less.
The utility model is another embodiment provide a kind of wind power generating set, wherein, has the blade that the utility model any embodiment is provided.
The wind power generating set that technique scheme provides; The original design rigidity and the intensity of its blade root portion design do not have bigger change because of being provided with the steel-wire screw-socket assembly; With use T type bolt technology and embedded nut or swivel nut compared with techniques in the existing technology; Use the utility model embodiment to provide the intensity of blade of steel-wire screw-socket assembly higher, rigidity is better; And the associated mass of root of blade can significantly reduce.
What should explain at last is: above each embodiment is only in order to the technological scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment's technological scheme of essence disengaging the utility model of relevant art scheme.
Claims (11)
1. a steel-wire screw-socket assembly is characterized in that, comprising:
Steel-wire screw-socket has interior threaded hole;
Winding layer is flexible material, and said winding layer closely is wrapped in the said screw thread body outside.
2. steel-wire screw-socket assembly according to claim 1 is characterized in that,
Said interior threaded hole is a through hole, and a side opening of said interior threaded hole is blocked by the light body piece of polyvinyl chloride foam or cork; And/or blocked adhesive tape on the opposite side opening.
3. steel-wire screw-socket assembly according to claim 2 is characterized in that, said winding layer extends the outside that is wrapped in said light body piece.
4. steel-wire screw-socket assembly according to claim 1 is characterized in that, said winding layer is a fibre cloth.
5. steel-wire screw-socket assembly according to claim 1 is characterized in that, is soaked with the glue layer that can solidify on said steel-wire screw-socket and the said winding layer.
6. a blade is characterized in that, the blade root portion of said blade is provided with several pre-buried holes, is embedded with the arbitrary described steel-wire screw-socket assembly of claim 1-5 in each said pre-buried hole.
7. blade according to claim 6 is characterized in that, each said pre-buried hole is positioned on the pitch circle of blade root portion of said blade, and evenly distributes.
8. blade according to claim 7; It is characterized in that also comprise and lay layer and several voussoirs, each said voussoir is between two adjacent said steel-wire screw-socket assemblies; Said laying layer is laid on each said steel-wire screw-socket assembly outside successively, and through each said voussoir.
9. blade according to claim 8 is characterized in that, is provided with 5-10 said voussoir between two adjacent said steel-wire screw-socket assemblies.
10. according to the arbitrary described blade of claim 7-9, it is characterized in that the inboard that said blade root portion is positioned at each said steel-wire screw-socket assembly is provided with inside panel, and/or the arranged outside that said blade root portion is positioned at each said steel-wire screw-socket assembly there is exterior skin.
11. a wind power generating set is characterized in that, has the arbitrary described blade of claim 7-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202217692U CN202597411U (en) | 2012-05-16 | 2012-05-16 | Wire thread insert assembly, vane and wind power generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202217692U CN202597411U (en) | 2012-05-16 | 2012-05-16 | Wire thread insert assembly, vane and wind power generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597411U true CN202597411U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202217692U Expired - Lifetime CN202597411U (en) | 2012-05-16 | 2012-05-16 | Wire thread insert assembly, vane and wind power generating unit |
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| CN (1) | CN202597411U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044325A (en) * | 2014-06-04 | 2014-09-17 | 山东英特力新材料有限公司 | Embedding method of metal embedded part in composite material interlayer structure |
| US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
| US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
| CN111765041A (en) * | 2020-07-14 | 2020-10-13 | 连云港中复连众复合材料集团有限公司 | Root connecting structure of wind power blade and manufacturing method thereof |
| US20220118726A1 (en) * | 2013-05-31 | 2022-04-21 | Lm Wp Patent Holding A/S | System and Method for Assisting in the Manufacture of a Wind Turbine Blade Shell |
| WO2023056711A1 (en) * | 2021-10-05 | 2023-04-13 | Envision Energy Co., Ltd | A root bushing, a bushing insert thereof, a wind turbine blade comprising said root bushing and a manufacturing method thereof |
-
2012
- 2012-05-16 CN CN2012202217692U patent/CN202597411U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220118726A1 (en) * | 2013-05-31 | 2022-04-21 | Lm Wp Patent Holding A/S | System and Method for Assisting in the Manufacture of a Wind Turbine Blade Shell |
| US11858227B2 (en) * | 2013-05-31 | 2024-01-02 | Lm Wp Patent Holding A/S | System and method for assisting in the manufacture of a wind turbine blade shell |
| CN104044325A (en) * | 2014-06-04 | 2014-09-17 | 山东英特力新材料有限公司 | Embedding method of metal embedded part in composite material interlayer structure |
| CN104044325B (en) * | 2014-06-04 | 2016-05-18 | 山东英特力新材料有限公司 | The embedding method of metal embedded part in a kind of composite material sandwich structure |
| US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
| US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
| CN111765041A (en) * | 2020-07-14 | 2020-10-13 | 连云港中复连众复合材料集团有限公司 | Root connecting structure of wind power blade and manufacturing method thereof |
| WO2023056711A1 (en) * | 2021-10-05 | 2023-04-13 | Envision Energy Co., Ltd | A root bushing, a bushing insert thereof, a wind turbine blade comprising said root bushing and a manufacturing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20121212 |