CN201593478U - Blade of butt joint type wind turbine - Google Patents
Blade of butt joint type wind turbine Download PDFInfo
- Publication number
- CN201593478U CN201593478U CN2009202951769U CN200920295176U CN201593478U CN 201593478 U CN201593478 U CN 201593478U CN 2009202951769 U CN2009202951769 U CN 2009202951769U CN 200920295176 U CN200920295176 U CN 200920295176U CN 201593478 U CN201593478 U CN 201593478U
- Authority
- CN
- China
- Prior art keywords
- connecting end
- type connecting
- blade
- screw
- flange plate
- 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 - Fee Related
Links
- 210000001503 joint Anatomy 0.000 title claims abstract description 15
- 239000003381 stabilizer Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 abstract description 3
- 239000004088 foaming agent Substances 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 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
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/302—Segmented or sectional blades
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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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model provides a blade of a butt joint type wind turbine, belonging to the field of a wind power electricity generating facility. A blade of a large-scale wind driven generator has the problems of difficult transportation and installation. The blade is formed by the butt joint of at least two sections of hollow blade bodies through screw nails. A connecting end for the mutual butt joint of the two adjoining sections of the blade bodies are divided into an a type connecting end and a b type connecting end; the a type connecting end and the b type connecting end are internally provided with flanges; the outer edge of a flange disc is connected with shells of blade bodies; the flange disc is provided with a plurality of fastening holes; the b type connecting end flange disc is provided with through holes which correspond to the fastening holes; the screw nails penetrate through the through holes; the screw nails are screwed into the fastening holes to fixedly connect the two sections of the blade bodies; the hollow inner cavity of each blade body is internally filled with foaming agent; and the middle of the foaming agent is provided with long holes which correspond to the through holes. The blade is formed by the butt joint of the segmented blade bodies which are internally provided with the flange discs, can shorten the length and reduce the weight of small blade monomers, and is convenient for transportation and installation.
Description
Technical field
The utility model belongs to the wind power plant field, and is especially relevant with a kind of dock wind turbine blade.
Background technique
Wind-powered electricity generation machine blade is vital parts in the modern wind power generating equipment.World's wind-power electricity generation further develops to high-power, linear leaf direction at present, and blade monomer length has reached more than 60 meters.This just increases blade transportation and installation difficulty, need for blade transport configuration special haulage device and vehicle, transport routes and road surrounding enviroment all will adapt to lengthening vehicle needs of advancing, same, the setting installation of blade also needs special lifting appliance.
The model utility content
The utility model will solve large-scale wind electricity machine blade transportation difficulty, a difficult technologies difficult problem is installed, the dock wind turbine blade that a kind of convenient transportation is provided and installs.For this reason, the utility model is by the following technical solutions:
The dock wind turbine blade, blade body butt joint by at least two sections hollows is formed, every section blade body all has connecting end, it is characterized in that: the connecting end that adjacent two sections described blade bodies dock mutually is divided into a type connecting end and b type connecting end, a type connecting end and b type connecting end all are built-in flange plate form, the flange plate outer rim is connected with the housing of blade body, a type connecting end flange plate is provided with a plurality of fastener holes, the fastener hole inwall is provided with screw thread, the through hole corresponding with described fastener hole is set on the b type connecting end flange plate, be coated with screw in this through hole, screw is screwed into described fastener hole, and two sections blade bodies are fastenedly connected; Be filled with stabilizer in the described blade body hollow cavity, be provided with the slotted hole corresponding with described through hole in the middle of the stabilizer, the spanner guide rod that is used to be screwed screw passes through.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Described fastener hole center line is positioned on the axial symmetry plane of blade body.
The flange plate internal surface of described a type connecting end and b type connecting end is provided with stiffening rib, and stiffening rib is connected with the housing of blade body.
Between the screw head of described screw and the b type connecting end flange plate surface compression spring is set, compression spring distortion elastic force guarantees that greater than screw tensile strength two sections blade physical efficiencys closely connect.
Described fastener hole is a step hole, is made up of positioning section and fastening section, and positioning section is positioned at butt joint end face one side, its diameter is greater than fastening section, the double as positioning hole uses, and fastening section is provided with screw thread, corresponding described through hole and fastener hole positioning section equal diameters and coaxial; Described screw is suitable with the fastener hole positioning section near the back segment diameter of screw head, fastening section corresponding formation screw-thread fit of screw leading portion and fastener hole.
Be provided with seal ring between described a type connecting end flange plate and the b type connecting end flange plate, corrosion things such as anti-sealing enter the blade body inner chamber from connecting end, cause internal corrosion.
Use the utility model can reach following beneficial effect: the segmented blade body butt joint by built-in flange plate is formed, and length and the weight that can dwindle the blade monomer are conveniently transported and installed.
Description of drawings
Fig. 1 is the utility model broken section structural representation.
Fig. 2 is the partial enlarged drawing at a place among Fig. 1.
Fig. 3 is the enlarged view of the A-A sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
As Fig. 1, Fig. 2, shown in Figure 3, the utility model is by the blade root of hollow, two sections blade body butt joints of blade tip are formed, every section blade body all has connecting end, blade root butt joint connecting end 1 is a b type connecting end, blade tip butt joint connecting end 2 is an a type connecting end, a type connecting end and b type connecting end dock and all are built-in flange plate form, the flange plate outer rim is connected with the housing of blade body, be provided with seal ring between a type connecting end flange plate 5 and the b type connecting end flange plate 6, a type connecting end flange plate 5 is provided with 4 fastener holes, the fastener hole center line is positioned on the axial symmetry plane of blade body, fastener hole is a step hole, form by positioning section and fastening section, positioning section is positioned at butt joint end face one side, its diameter is greater than fastening section, the double as positioning hole uses, fastening section is provided with screw thread, the through hole corresponding with described fastener hole is set on the b type connecting end flange plate 6, through hole and fastener hole positioning section equal diameters and coaxial, be coated with screw 7 in the through hole, between the surface of the screw head of screw 7 and b type connecting end flange plate 6 compression spring is set, screw 7 is suitable with the fastener hole positioning section near the back segment diameter of screw head, fastening section corresponding formation screw-thread fit of screw leading portion and fastener hole is fastenedly connected two sections blade bodies; Be filled with stabilizer 4 in described blade body 1 hollow cavity, be provided with the slotted hole corresponding with described through hole 3 in the middle of the stabilizer 4, a type connecting end flange plate 5 and b type connecting end flange plate 6 internal surfaces are provided with stiffening rib, and stiffening rib is connected with the housing of blade body.
The utility model also can be made up of the butt joint of multistage blade bodies such as blade root, leaf tripe, blade tip, and then leaf tripe one end is an a type connecting end, and the other end is a b type connecting end.The hop count of leaf tripe also can be decided according to length of blade.
Claims (6)
1. dock wind turbine blade, blade body butt joint by at least two sections hollows is formed, every section blade body all has connecting end, it is characterized in that: the connecting end that adjacent two sections described blade bodies dock mutually is divided into a type connecting end and b type connecting end, a type connecting end and b type connecting end all are built-in flange plate form, the flange plate outer rim is connected with the housing of blade body, a type connecting end flange plate (5) is provided with a plurality of fastener holes, the fastener hole inwall is provided with screw thread, b type connecting end flange plate (6) is gone up the through hole corresponding with described fastener hole is set, be coated with screw (7) in this through hole, screw (7) is screwed into described fastener hole, and two sections blade bodies are fastenedly connected; Be filled with stabilizer (4) in the described blade body hollow cavity, be provided with the slotted hole corresponding (3) in the middle of the stabilizer (4) with described through hole.
2. dock wind turbine blade according to claim 1 is characterized in that: described fastener hole center line is positioned on the axial symmetry plane of blade body.
3. dock wind turbine blade according to claim 1 is characterized in that: the flange plate internal surface of described a type connecting end and b type connecting end is provided with stiffening rib, and stiffening rib is connected with the housing of blade body.
4. dock wind turbine blade according to claim 1 is characterized in that: between the screw head of described screw (7) and b type connecting end flange plate (6) surface compression spring is set.
5. dock wind turbine blade according to claim 1, it is characterized in that: described fastener hole is a step hole, form by positioning section and fastening section, positioning section is positioned at butt joint end face one side, its diameter is greater than fastening section, fastening section is provided with screw thread, corresponding described through hole and fastener hole positioning section equal diameters and coaxial; Described screw (7) is suitable with the fastener hole positioning section near the back segment diameter of screw head, fastening section corresponding formation screw-thread fit of the leading portion of screw (7) and fastener hole.
6. dock wind turbine blade according to claim 1 is characterized in that: be provided with seal ring between described a type connecting end flange plate (5) and the b type connecting end flange plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202951769U CN201593478U (en) | 2009-12-28 | 2009-12-28 | Blade of butt joint type wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202951769U CN201593478U (en) | 2009-12-28 | 2009-12-28 | Blade of butt joint type wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593478U true CN201593478U (en) | 2010-09-29 |
Family
ID=42775544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202951769U Expired - Fee Related CN201593478U (en) | 2009-12-28 | 2009-12-28 | Blade of butt joint type wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593478U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192110A (en) * | 2011-06-12 | 2011-09-21 | 中国科学院工程热物理研究所 | Subsection blade of wind turbine and assembling method thereof |
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN107191323A (en) * | 2016-03-15 | 2017-09-22 | 西门子公司 | Bolted joints for rotor blade section |
| CN107725268A (en) * | 2016-08-10 | 2018-02-23 | 通用电气公司 | Method for balancing segmented wind turbine rotor blade |
-
2009
- 2009-12-28 CN CN2009202951769U patent/CN201593478U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192110A (en) * | 2011-06-12 | 2011-09-21 | 中国科学院工程热物理研究所 | Subsection blade of wind turbine and assembling method thereof |
| CN102192110B (en) * | 2011-06-12 | 2012-10-10 | 中国科学院工程热物理研究所 | Subsection blade of wind turbine and assembling method thereof |
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN107191323A (en) * | 2016-03-15 | 2017-09-22 | 西门子公司 | Bolted joints for rotor blade section |
| US10330076B2 (en) | 2016-03-15 | 2019-06-25 | Siemens Gamesa Renewable Energy A/S | Bolted joint for rotor blade segments |
| CN107725268A (en) * | 2016-08-10 | 2018-02-23 | 通用电气公司 | Method for balancing segmented wind turbine rotor blade |
| CN107725268B (en) * | 2016-08-10 | 2021-03-16 | 通用电气公司 | Method for balancing a segmented wind turbine rotor blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20111228 |