CN101614184B - Blade insert - Google Patents
Blade insert Download PDFInfo
- Publication number
- CN101614184B CN101614184B CN200910151522.0A CN200910151522A CN101614184B CN 101614184 B CN101614184 B CN 101614184B CN 200910151522 A CN200910151522 A CN 200910151522A CN 101614184 B CN101614184 B CN 101614184B
- Authority
- CN
- China
- Prior art keywords
- inserting member
- layered structure
- blade
- main body
- insert
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000003475 lamination Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
- B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Wind Motors (AREA)
Abstract
Blade insert connected in the lamination of a blade determining a double shear joint between insert and lamination. The insert is made up of two defined parts, head (2), designed to screw the insert to another structure (2'), and the body (3) that determines a cylindrical or conical shape with an internal conical cavity. In an embodiment, the insert is designed to be joined to the lamination (1) of the blade with adhesive means (4). In another embodiment, the insert is embedded in the blade lamination with an inner part stuck to the body (3) of the insert.
Description
Technical field
The present invention relates to a kind of inserting member for wind turbine blade.
Background technique
Wind turbine blade is conventionally by mechanical type multiple spot Placement, as stress screw is connected on the wheel hub of this wind turbine.Similarly, the blade that is divided into multiple modules can assemble by the mechanical connection between the metal parts that is called inserting member.The fundamental function of blade root fastenings element and middle coupling element is traction and/or the compression load of transmission from blade layered structure.
Immediate prior art is patent EP18789155, and its metal insert is contained in blade module wall vertically, and this wall is made up of the composite bed with a series of holes.Structure between composite layer and inserting member is connected by chemical method (tackiness agent) and realizes, and is defined as simple shear shear force formula and connects, because each side of inserting member all contacts with one of side of composite layer mesopore.
But the transmission that is created on the caused blade layered structure of load on blade traction and/or compression load by wind-force effect is very large.This problem can, by solving with multifilament more and large inserting member reinforcing module wall, will increase the load of wind turbine but blade is overweight, and this is not expect to occur.
Summary of the invention
In order to realize appropriate load transmission, a special inserting member is provided, its mode connecting with double shear shear force formula is arranged in blade layered structure.
Inserting member is made up of two qualifying parts, be head and main body, head design becomes inserting member (is for example screwed in to another structure, wind turbine hub bearing or another inserting member corresponding with another blade module), and main body comprises the cylindrical or conical area with circular cone inner chamber, in order to this inserting member is chemically connected to this layered structure.
Comprise two alternative being connected between inserting member and layered structure:
-first kind of way, inserting member is connected with layered structure by the mach chamber of chemical mode (tackiness agent) in curing layered structure.
-the second way, embedding layered structure connects together this inserting member and an interior section in lamination step.At this layered structure setting up period, this composite resin bonds to this layered structure on inserting member by chemical mode.
The head of the inserting member that we are discussing has two kinds of alternative according to its use occasion, for connecting inserting member or the blade root inserting member of intermediate blade part;
The-the first alternative, inserting member has a Metal fittings head with through hole;
The-the second alternative, the complete lamination of inserting member head also has internal whorl region.
Brief description of the drawings
Accompanying drawing is below in order to explain the connection of inserting member:
Fig. 1 illustrates according to the first embodiment's inserting member connection and the sectional view of blade wall layered structure.
Fig. 2 shows the transverse section connecting corresponding between the inserting member of upper figure and layered structure;
Fig. 3 illustrates according to the second embodiment's inserting member connection and the sectional view of blade wall layered structure;
Fig. 4 shows the transverse section connecting corresponding between the inserting member of upper figure and layered structure;
Fig. 5 and 6 shows a cross section of connection, has shown the load transmission of the rigidity of the material used according to inside;
Fig. 7 and 8 shows two embodiments according to the inserting member head of Leaf area of the present invention; These two embodiments' inserting member is respectively used to the different parts of blade;
Fig. 9 shows according to the connection between two the different structure inserting members of embodiment in Fig. 7;
Figure 10 shows according to inserting the sectional view connecting between the Metal fittings of embodiment in Fig. 7, inserting member and bolt;
Figure 11 shows the embodiment for Fig. 7 embodiment's the instrument that tightens up.
Embodiment
The present invention relates to blade, its main layered structure (being positioned at the top of aerodynamic force aerofoil profile and the center region of bottom) is made up of solid lamination, it has described a kind of vane insert, it is characterized in that connecting and using on blade with double shear shear force formula.
As shown in Figure 1, blade insert of the present invention comprises two different pieces, head 2 and main body 3, head 2 be designed to can by anchoring piece 9 by inserting member revolve be connected to another structure 1 ', 2 ', 3 ', main body 3 is designed to be fixed on blade layered structure 1 by tackiness agent 4.
Inserting member main body 3 has cylindrical or conical with inner conical cavity, and head as shown in Figure 7 and Figure 8, has a spiral region or a cast iron head zone with through hole, this depends on that it is to be arranged on root of blade as an inserting member, or as connecting inserting member in the middle of blade.
Like this, in the first embodiment, connection between inserting member main body 3 and blade layered structure 1 realizes by near the layered structure 1 of thickening this tie point, after this layered structure has cured, can be processed into rotation geometry structure, form one with the suitable conical cavity of the shape of this inserting member main body 3, and this main body 3 is inserted in tackiness agent 4, referring to Fig. 1 and Fig. 2.
Connect in embodiment at another, inserting member embeds in blade layered structure, therefore an interior section 5 being bonded in inserting member main body 3 is also inserted into, and as shown in Figure 3, this just allows to form from blade layered structure to inserting member top the composite layer of repeatedly pressing continuously.
Interior section 5 has two sections, and one is the taper shape 5.1 with the surface binded of the circular cone inner chamber of inserting member main body 3 with tackiness agent 4, and another is cylindrical cavity 5.2 and chamfering.
Interior section 5 can adopt different materials according to the required join strength of each application.For example, in the time having high-intensity demand, adopt the such rigid material of glass fibre, in the time needing low-intensity, adopt light as foam or timber and the lower material of rigidity.
Load transmission 8 in each situation is different, as illustrated in Figures 5 and 6, in the time that rigid material is used for interior section 5, part load directly transfers to layered structure 1 from inserting member, and another part load transfers to interior section 5 from inserting member, and with after reach the layered structure 1 being positioned at outside inserting member through the surface of interior section 5, having formed in this way double shear shear force formula connects, and in the time adopting light and material that rigidity is lower, the load transmission 8 between inserting member and this layered structure 1 is mainly carried out through the outside of inserting member.
Finally, will between inserting member, introduce some dividers (6), it can be made with glass fibre or foam.
The feature of the method that inserting member is arranged near interior section 5 is to have adopted the mould 7 with corrugated surface, thereby by suitable with the cylindrical shape of inserting member this layered structure 1.The a series of stacking of composite material is pressed in to (glass fibre or carbon fiber) on this corrugated surface, and the inserting member of bonding interior section 5 has in advance been set thereon.Divider 6 as above, between inserting member, is finally pressed on inserting member stacking remaining composite material.
This laminating technology can adopt the material of pre-impregnation, and this material is pre-soaked in resin, also can adopt dry fabric, then insulating varnish.
As previously mentioned, according to the feature connecting (being to install as blade root inserting member or the inserting member of connection intermediate member), the head 2 of inserting member is different, if inserting member is connected with flange (blade root fastenings), 2, head has an internal helicoid region and embeds the layered structure 1 of blade, if inserting member is to be connected with another structural identical inserting member, it has one with the Metal fittings head 2 (respectively referring to Fig. 7 and 8) of through hole that does not embed layered structure 1.
Shown in Fig. 9 be by inserting member and another structure 1 ', 2 ', 3 ' another alternative of being connected of identical inserting member, insert in advance an assistant metal accessory 10, this accessory has at least one non-helical through hole 11, and this through hole holds two insert configuration 1,2,3; 1 ', 2 ', 3 ' anchor bolt 9,9 ' fastener head 12.
These bolts 9,9 ' have inside " counterclockwise " screw thread 13, outside " clockwise " screw thread 14 and be positioned at the fastener head 12 of bolt 9,9 ' end.Fastener head (12) is nut 15 afterwards, and it has " clockwise " screw thread engaging with bolt 9, as shown in figure 10.It between nut 15 and assistant metal accessory 10, is a packing ring 20.
The process that tightens up, based on apply torque on nut 15 outer surfaces, makes this nut reach the fastener head 12 of bolt 9.In the time applying this torque, if two screw threads 13,14 of bolt 9 have done correct lubricating, between head 2, assistant metal accessory 10 and nut 15, can not produce relative movement.The result that applies torque is, bolt 9 advances in one direction along the screw thread of this head 2, and on 15 screw thread of nut, rotates in the opposite direction, thus bolt 9 on form a pretightening force.
While tightening up according to this preferred embodiment, adopt instrument as shown in figure 11.This instrument is preferably made up of two different pieces: a back-up wrench 16 and an adjustable spanner 17, back-up wrench is for tightening up process holding nut 15, and adjustable spanner comprises the movable guiding rail 19 on the fixed guide 18 being connected with back-up wrench 16 one and the fastener head 12 that torque is put on to bolt 9.
Claims (10)
1. blade insert, it is connected to the solid layered structure that is arranged in the top of vane aerodynamic part or the core of bottom, it is characterized in that:
-this inserting member is made up of head (2) and main body (3), described head design becomes inserting member to be screwed in to another structure, described main body is used for being connected to layered structure (1), this layered structure has cylinder or the cone shape with inner circular taper hole, described main body all embeds layered structure (1) inside, described head (2) is arranged on outside blade, with a through hole, the through hole that passes another inserting member of this through hole and another blade of embedding by bolt, links together two blades;
Connection between-inserting member and layered structure (1) connects (4) by tackiness agent with chemical double shear shear force formula and realizes, and, is positioned at outer surface and the internal surface of inserting member main body (3) that is.
2. blade insert as claimed in claim 1, it is characterized in that: in order to realize being connected between inserting member main body (3) and layered structure (1), layered structure (1) after solidifying is machined to, makes it have the rotation geometry body suitable with inserting member main body (3) shape.
3. blade insert as claimed in claim 1, it is characterized in that: this inserting member embeds blade layered structure (1), and comprising that at least one adheres to the interior section (5) of the inner inner conical cavity of this inserting member main body (3), this interior section (5) all embeds in the blade of place.
4. blade insert as claimed in claim 1, is characterized in that: between inserting member, insert some dividers of being made up of glass fibre or foam (6).
5. blade insert as claimed in claim 3, it is characterized in that: interior section (5) has two sections, one is the surperficial taper shape (5.1) that is adhered to the circular cone inner chamber of inserting member main body (3) with tackiness agent (4), and another is cylindrical cavity (5.2) and chamfering.
6. blade insert according to claim 3, is characterized in that: interior section (5) adopts glass fibre manufacture.
7. blade insert as claimed in claim 3, is characterized in that: interior section (5) adopts foam or timber manufacture.
8. the installation method of inserting member in blade layered structure, is characterized in that: the connection between inserting member and layered structure (1) is embedded inserting member, comprises the steps:
-adopt to there is the mould (7) of corrugated surface, thus make layered structure (1) suitable with the cylinder-shaped body (3) of inserting member;
-be pressed on described surface stacking a series of composite materials,
-at the upper inserting member of bonding interior section (5) in advance that arranged of layered structure (1),
-some dividers (6) are set between inserting member,
-be pressed on inserting member and divider (6) stacking remaining composite material.
9. the installation method of inserting member as claimed in claim 8 in blade layered structure, is characterized in that: adopt prepreg layer compression technology, that is, material is pre-soaked with resin.
10. the installation method of inserting member as claimed in claim 8 in blade layered structure, is characterized in that: adopt dry fibre layers compression technology, then immerse resin.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP200801927 | 2008-06-27 | ||
| ES200801927A ES2369442B1 (en) | 2008-06-27 | 2008-06-27 | BLADE INSERT AND INSERT PLACEMENT METHOD IN THE ROLLING OF A SHOVEL. |
| ES200803279A ES2392301B8 (en) | 2008-11-18 | 2008-11-18 | MECHANISM AND METHOD OF UNION BETWEEN INSERTS. |
| ESP200803279 | 2008-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614184A CN101614184A (en) | 2009-12-30 |
| CN101614184B true CN101614184B (en) | 2014-07-23 |
Family
ID=41494023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910151522.0A Active CN101614184B (en) | 2008-06-27 | 2009-06-29 | Blade insert |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101614184B (en) |
| ES (1) | ES2369442B1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012140049A2 (en) * | 2011-04-11 | 2012-10-18 | Lm Wind Power A/S | Wind turbine blade comprising cylindrical metal inserts in a root region thereof |
| US9551317B2 (en) * | 2011-04-11 | 2017-01-24 | Lm Wp Patents Holding A/S | Wind turbine blade with elongated fastening members in the root region thereof |
| US20140030094A1 (en) * | 2011-04-11 | 2014-01-30 | Lm Wp Patent Holding A/S | Wind turbine blade having a root region with elongated fastening members provided with metal fibres |
| US9995271B2 (en) * | 2011-04-11 | 2018-06-12 | Lm Wp Patent Holding A/S | Wind turbine blade with tapering root bushings |
| PL2917568T3 (en) * | 2012-09-17 | 2018-04-30 | Lm Wp Patent Holding A/S | Wind turbine blade with fastening means |
| ES2475491B1 (en) * | 2013-01-10 | 2015-04-17 | Ingeniería Prosix, S.L. | Wind turbine blade |
| CN103334872B (en) * | 2013-06-08 | 2015-07-15 | 中国大唐集团科学技术研究院有限公司 | Wind turbine blade and wind turbine |
| CN112105814B (en) * | 2018-05-04 | 2023-09-22 | 通用电气公司 | Method of forming a wind turbine rotor blade root |
| EP4214412B1 (en) * | 2020-11-25 | 2024-11-06 | Shanghai Electric Wind Power Group Co., Ltd. | Joint for segmented wind turbine blade, segmented wind turbine blade and method for manufacturing the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115075B (en) * | 1982-02-01 | 1985-05-09 | Stanford Res Inst Int | Concrete structure e g a rotor blade |
| WO2006002621A1 (en) * | 2004-06-30 | 2006-01-12 | Vestas Wind Systems A/S | Wind turbine blades made of two separate sections, and method of assembly |
| WO2006056584A1 (en) * | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Method and connecting piece for assembling windmill blade sections |
| WO2007010064A2 (en) * | 2005-07-15 | 2007-01-25 | Gamesa Innovation And Technology, S.L. | Method of producing large hollow parts based on composite materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8172538B2 (en) * | 2004-12-29 | 2012-05-08 | Vestas Wind Systems A/S | Method of manufacturing a wind turbine blade shell member with a fastening member and a wind turbine blade with a fastening member |
-
2008
- 2008-06-27 ES ES200801927A patent/ES2369442B1/en active Active
-
2009
- 2009-06-29 CN CN200910151522.0A patent/CN101614184B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115075B (en) * | 1982-02-01 | 1985-05-09 | Stanford Res Inst Int | Concrete structure e g a rotor blade |
| WO2006002621A1 (en) * | 2004-06-30 | 2006-01-12 | Vestas Wind Systems A/S | Wind turbine blades made of two separate sections, and method of assembly |
| WO2006056584A1 (en) * | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Method and connecting piece for assembling windmill blade sections |
| WO2007010064A2 (en) * | 2005-07-15 | 2007-01-25 | Gamesa Innovation And Technology, S.L. | Method of producing large hollow parts based on composite materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101614184A (en) | 2009-12-30 |
| ES2369442B1 (en) | 2012-10-09 |
| ES2369442A1 (en) | 2011-11-30 |
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