CN201502483U - Fan blade of wind turbine - Google Patents
Fan blade of wind turbine Download PDFInfo
- Publication number
- CN201502483U CN201502483U CN2009201242816U CN200920124281U CN201502483U CN 201502483 U CN201502483 U CN 201502483U CN 2009201242816 U CN2009201242816 U CN 2009201242816U CN 200920124281 U CN200920124281 U CN 200920124281U CN 201502483 U CN201502483 U CN 201502483U
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- CN
- China
- Prior art keywords
- connecting end
- hole
- type connecting
- segment
- screw
- 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
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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
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Abstract
The utility model provides a fan blade of a wind turbine, which belongs to the field of wind power generating equipment. The fan blade of the large-sized wind turbine is difficult for transportation and installation. The fan blade of the wind turbine is formed by the butt-jointing of at least two segments of hollow fan blade bodies through a screw; the butt-jointing parts of the two adjacent segments of fan blade bodies are a-type and b-type connecting ends, the a-type connecting end adopts the type of a built-in flange, the outer rim of a flange body is connected with a shell body of the fan blade body, a plurality of stepped holes are arranged on the flange body, each stepped hole is composed of a positioning segment and a fastening segment, the positioning segment is arranged at one side of the butt-jointing end face, the diameter of the positioning segment is larger than that of the fastening segment, and the fastening segment is provided with a thread. Grooves which are corresponding to the stepped holes are arranged on the outer surface of the shell body of the fan blade body at the b-type connecting end, openings of the grooves are outward and semi-enclosed, a through hole is arranged on the wall of the groove at one side of the connecting end face, the stepped hole and the through hole is coaxial, and the diameter of the through hole is equal to that of the positioning segment of the stepped hole. The diameter of the rear segment of the screw in the through hole is equal to that of the positioning segment of the stepped hole, and the rear segment exerts the functions of connecting and positioning; the front segment of the screw is corresponding to and matched with the fastening segment of the stepped hole in a threaded manner, and the front segment exerts the functions of connecting and fastening.
Description
Technical field
The utility model belongs to the wind power plant field, and is especially relevant with a kind of wind turbine blade.
Background technique
Wind turbine blade makes 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 turbine blade transportation difficulty, a difficult technologies difficult problem is installed, the 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:
A kind of 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 blade bodies dock mutually is divided into a type connecting end and b type connecting end, a type connecting end is built-in form of flanges, the flange body outer rim is connected with the housing of blade body, flange body is provided with a plurality of step holes, step hole is made up of positioning section and fastening section, positioning section is positioned at butt joint end face one side, its diameter is greater than fastening section, and the double as positioning hole uses, and fastening section is provided with screw thread; The blade body housing outer surface of b type connecting end is provided with and the corresponding groove of described step hole, slot opening is semiclosed shape outwardly, the groove walls that connects end face one side is provided with through hole as adpting flange, this through hole and described step hole positioning section equal diameters and coaxial; Be coated with screw in the described through hole, this screw is suitable with described step hole positioning section near the back segment diameter of screw head, fastening section corresponding formation screw-thread fit of screw leading portion and described step hole.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Described a type connecting end and b type connecting end all are provided with the extending body that extends to the blade body hollow cavity, are used to increase the surface of contact of connecting end, thereby strengthen join strength.
Be provided with seal ring between described a type connecting end and the b type connecting end, corrosion things such as anti-sealing enter the blade body inner chamber from connecting end, cause internal corrosion.
Be filled with packing in the described groove, make the blade body surfacing, improve pneumatic property.
Use the utility model can reach following beneficial effect: form by the butt joint of segmented blade body, length and the weight that can dwindle the blade monomer are conveniently transported and are installed; Use the screw connecting mode of location and fastening one, can improve the connection precision of blade, strengthen the exercise performance of blade, the location easily when butt joint was 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 made up of blade body 1 butt joint of three sections hollows, every section blade body 1 all has connecting end, the connecting end that adjacent two sections blade bodies dock mutually is divided into a type connecting end and b type connecting end, a type connecting end is built-in form of flanges, flange body 4 outer rims are connected with the housing 3 of blade body, be arranged at intervals with 7 step holes on the flange body 4, step hole is made up of positioning section and fastening section, positioning section is positioned at butt joint end face one side, and its diameter is greater than fastening section, and the double as positioning hole uses, fastening section is provided with screw thread, and flange body 4 is provided with the extending body a5 that extends to the blade body hollow cavity near hollow cavity one side; Blade body housing 7 outer surfaces of b type connecting end are provided with and the corresponding groove 6 of described step hole, slot opening is semiclosed shape outwardly, the groove walls 8 that connects end face one side is as adpting flange, be provided with through hole, this through hole and described step hole positioning section equal diameters and coaxial, b type connecting end is provided with the extending body b 9 that extends to the blade body hollow cavity, and extending body b 9 is connected as a single entity with groove walls 8; Be coated with screw 2 in the described through hole, screw 2 is suitable with described step hole positioning section near the back segment diameter of screw head, fastening section corresponding formation screw-thread fit of screw leading portion and described step hole; A type connecting end is connected with b type connecting end seal groove is set on the end face, is provided with seal ring 11 in the seal groove; Fill packing 10 in the groove 6, packing can be an epoxy resin, also can be the high strength putty.
Claims (4)
1. wind turbine blade, blade body (1) 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 blade bodies dock mutually is divided into a type connecting end and b type connecting end, a type connecting end is built-in form of flanges, flange body (4) outer rim is connected with the housing (3) of blade body, flange body (4) is provided with a plurality of step holes, step hole is made up of positioning section and fastening section, positioning section is positioned at butt joint end face one side, its diameter is greater than fastening section, and fastening section is provided with screw thread; Blade body housing (7) outer surface of b type connecting end is provided with and the corresponding groove of described step hole (6), groove (6) opening is semiclosed shape outwardly, the groove walls (8) that connects end face one side is as adpting flange, groove walls (8) is provided with through hole, this through hole and described step hole positioning section equal diameters and coaxial; Be coated with screw (2) in the described through hole, screw (2) is gone up near the back segment diameter of screw head suitable with described step hole positioning section diameter, fastening section corresponding formation screw-thread fit of screw leading portion and described step hole.
2. a kind of wind turbine blade according to claim 1, it is characterized in that: described a type connecting end is provided with the extending body a (5) that extends to the blade body hollow cavity, extending body a (5) is connected as a single entity with described flange body (4), b type connecting end is provided with the extending body b (9) that extends to the blade body hollow cavity, and extending body b (9) is connected as a single entity with described groove walls (8).
3. a kind of wind turbine blade according to claim 1 is characterized in that: be provided with seal ring (11) between described a type connecting end and the b type connecting end.
4. a kind of wind turbine blade according to claim 1 is characterized in that: be filled with packing (10) in the described groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201242816U CN201502483U (en) | 2009-07-13 | 2009-07-13 | Fan blade of wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201242816U CN201502483U (en) | 2009-07-13 | 2009-07-13 | Fan blade of wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502483U true CN201502483U (en) | 2010-06-09 |
Family
ID=42453417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201242816U Expired - Fee Related CN201502483U (en) | 2009-07-13 | 2009-07-13 | Fan blade of wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502483U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943138A (en) * | 2010-09-01 | 2011-01-12 | 广东明阳风电产业集团有限公司 | Fan blade of generating set |
| CN102011711A (en) * | 2010-12-06 | 2011-04-13 | 济南轨道交通装备有限责任公司 | Sectionalized-assembly type fan blade and manufacturing method thereof |
| CN102734084A (en) * | 2012-06-26 | 2012-10-17 | 昆明理工峰潮科技有限公司 | Sectional blade of wind driven generator |
| CN103180609A (en) * | 2010-10-22 | 2013-06-26 | 三菱重工业株式会社 | Wind turbine rotor blade |
| CN103437966A (en) * | 2013-09-09 | 2013-12-11 | 湖南大学 | Assembling combined type blade of large-scale wind driven generator |
| CN103670910A (en) * | 2013-12-17 | 2014-03-26 | 上海玻璃钢研究院东台有限公司 | Sectional wind turbine blade connecting device and method |
| CN103850886A (en) * | 2012-12-05 | 2014-06-11 | 上海万德风力发电股份有限公司 | Blade of high-power wind turbine generator |
| CN109185043A (en) * | 2018-08-06 | 2019-01-11 | 中材科技（邯郸）风电叶片有限公司 | Wind electricity blade and production technology |
-
2009
- 2009-07-13 CN CN2009201242816U patent/CN201502483U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943138A (en) * | 2010-09-01 | 2011-01-12 | 广东明阳风电产业集团有限公司 | Fan blade of generating set |
| CN103180609A (en) * | 2010-10-22 | 2013-06-26 | 三菱重工业株式会社 | Wind turbine rotor blade |
| CN103180609B (en) * | 2010-10-22 | 2015-11-25 | 三菱重工业株式会社 | Wind turbine rotor blade |
| CN102011711A (en) * | 2010-12-06 | 2011-04-13 | 济南轨道交通装备有限责任公司 | Sectionalized-assembly type fan blade and manufacturing method thereof |
| CN102011711B (en) * | 2010-12-06 | 2013-01-16 | 济南轨道交通装备有限责任公司 | Sectionalized-assembly type fan blade and manufacturing method thereof |
| CN102734084A (en) * | 2012-06-26 | 2012-10-17 | 昆明理工峰潮科技有限公司 | Sectional blade of wind driven generator |
| CN103850886A (en) * | 2012-12-05 | 2014-06-11 | 上海万德风力发电股份有限公司 | Blade of high-power wind turbine generator |
| CN103437966A (en) * | 2013-09-09 | 2013-12-11 | 湖南大学 | Assembling combined type blade of large-scale wind driven generator |
| CN103670910A (en) * | 2013-12-17 | 2014-03-26 | 上海玻璃钢研究院东台有限公司 | Sectional wind turbine blade connecting device and method |
| CN109185043A (en) * | 2018-08-06 | 2019-01-11 | 中材科技（邯郸）风电叶片有限公司 | Wind electricity blade and production technology |
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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: 20100609 Termination date: 20110713 |