CN102518568B - Wind power sectional-type blade - Google Patents
Wind power sectional-type blade Download PDFInfo
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- CN102518568B CN102518568B CN201110444267.6A CN201110444267A CN102518568B CN 102518568 B CN102518568 B CN 102518568B CN 201110444267 A CN201110444267 A CN 201110444267A CN 102518568 B CN102518568 B CN 102518568B
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- blade
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a wind power sectional-type blade, which comprises at least two blade sections. All the blade sections are connected in sequence through a connecting elements into a whole. The connecting element mainly comprises a connecting substrate, a plurality of blade connecting bolts and nuts of which the number corresponds to that of the blade connecting bolts, wherein both tips of the connecting substrate are respectively matched with the but joint end parts of the adjacent blade sections; the tips of the connecting substrate and the but joint end parts of the blade sections are respectively provided with a plurality of bolt holes which correspond to one another; each blade connecting bolt penetrates into the corresponding bolt holes in the connecting substrate and the blade sections; and the nuts are locked on the blade connecting bolts. According to the wind power sectional-type blade disclosed by the invention, on the premise of not influencing the air performance of the blade, the blade is designed into a plurality of blade sections, thereby, the manufacturing difficulty is reduced, the subsequent transportation work is greatly facilitated, the manufacturing and transportation cost is effectively controlled, and the assembled blade has high strength and is stable and reliable.
Description
Technical field
The present invention relates to the blade of used for wind power generation, specifically a kind of sectional-type blade of used for wind power generation.
Background technique
The principle of wind-power electricity generation is, utilizes wind-force to drive air vane rotation, then sees through booster engine the speed of rotation is promoted, and impels generator generating.Therefore, blade is one of vitals of wind-power electricity generation.
Along with the power of wind-powered electricity generation unit constantly promotes, the length of blade is also in continuous lengthening.Yet the increase of length of blade, causes manufacture difficulty to increase, product rejection rate is high, and cost of production significantly increases; In addition, be also with inconvenience to follow-up hauling operation, this major embodiment is: 1. countries in the world railway, highway administration part, for security consideration, have a series of strict restrictions to the length carrying cargo, height etc.; 2. in order to utilize good wind energy resources, avoid disturbing residents, most of Construction of Wind Power is in offshore islands, pastoral area, grassland, mountain area and area, plateau, this make wind energy turbine set comparatively remote, have inconvenient traffic, the hauling operation of large-scale blade is difficult, with high costs.
In order to overcome an above-mentioned difficult problem, each wind power equipment manufacturing enterprise and related scientific research unit have carried out large quantity research to the structure of blade, its achievement in research is appeared in the newspapers repeatly on public publication, Chinese patent literature disclosed " a kind of sectional blade of wind turbine and assembly method thereof " (publication number: CN102192110A for example, open day: 2011.09.21), although disclosing multistage blade sections, this technology sequentially forms integral blade, convenient manufacture and transportation, but by the many reverse bolts of double end, be formed by connecting between its each blade sections, it has not only interrupted the Profile Design of blade, affected the aerodynamic quality of blade, and reduced the bulk strength of blade, reliability is poor.
Summary of the invention
The object of the invention is to: for above-mentioned the deficiencies in the prior art, do not affecting under the prerequisite of vane aerodynamic performance, providing a kind of bulk strength high, reliable and stable, the convenient wind power sectional-type blade of manufacturing and transporting.
The technical solution used in the present invention is: a kind of wind power sectional-type blade, comprise at least two sections of blade sections, each blade sections sequentially connects into integral body by connector element, and described connector element mainly forms by connecting pedestal, many blade connecting bolts and respective amount nut; Wherein, two terminations that connect pedestal match with the end of docking of adjacent blades section respectively, are connecting the termination of pedestal and the butt end portion of blade sections and be respectively equipped with the bolt hole of a plurality of mutual correspondences; Every blade connecting bolt penetrates the corresponding bolt hole connecting in pedestal and blade sections, and nut check is on blade connecting bolt.
The termination of described connection pedestal extends in the docking end of blade sections.
Described connection pedestal is connected pedestal by the first connection pedestal and second and forms, the first connection pedestal is connected pedestal and has respectively a termination that is matched with blade sections docking end with second, between the first connection pedestal and the second connection pedestal, be provided with the connection seam matching, at the first connection pedestal, be connected the bolt hole that is provided with a plurality of mutual correspondences on the connection seam of pedestal with second, many foundation seat connecting bolt penetrates respectively corresponding bolt hole, and nut check is on pedestal connecting bolt.
Described connection pedestal can be also an integral body.
The invention has the beneficial effects as follows:
The present invention compares with traditional integral blade, blade is divided into multistage blade sections and manufactures, and has reduced manufacture difficulty, has alleviated working strength, and cost of production is effectively controlled; The length of blade sections is less, and volume is lighter, has avoided transportation to transfinite and a ungetable transportation difficult problem, greatly facilitates subsequent transportation operation, and cost of transportation is significantly reduced;
The present invention compares with the technology that publication number is CN102192110A, by connecting the members such as pedestal and connecting bolt, each blade sections is connected into integral body, the Profile Design of blade is kept, can not affect the aerodynamic quality of blade, and the bulk strength of blade is high, reliable and stable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is another kind of structural representation of the present invention.
Code name implication in figure: 1-1-blade epimere; 1-2-blade hypomere; 2-connection pedestal; 2-1-the first connects pedestal; 2-2-the second connects pedestal; 3-blade connecting bolt; 4,6-nut; 5-pedestal connecting bolt.
Embodiment
embodiment 1
Referring to Fig. 1: the present invention is divided into two sections by an intact leaf of design, manufacture respectively, until moulding, be blade epimere 1-1 and blade hypomere 1-2, blade epimere 1-1 and blade hypomere 1-2 are hollow structure, blade epimere 1-1 and blade hypomere 1-2 have respectively docking end, and connector element is connected on the docking end of blade epimere 1-1 and blade hypomere 1-2, and blade epimere 1-1 and blade hypomere 1-2 are connected into integral body.
Above-mentioned connector element mainly forms by connecting pedestal 2, many blade connecting bolts 3 and respective amount nut 4.Wherein, connecting pedestal 2 is an integral body, the exterior contour of its termination, two ends matches with the end in-profile that docks of blade epimere 1-1 and blade hypomere 1-2 respectively, the termination, two ends that connects pedestal 2 extends to respectively in the docking end of blade epimere 1-1 and blade hypomere 1-2, the left end termination that connects pedestal 2 extends in the docking end of blade hypomere 1-2, and the right-hand member termination that connects pedestal 2 extends in the docking end of blade epimere 1-1.Connecting the left end termination of pedestal 2 and the butt end portion of blade hypomere 1-2 and be respectively equipped with the bolt hole of a plurality of mutual correspondences, these bolts hole are a row, regular arrangement.Connecting the right-hand member termination of pedestal 2 and the butt end portion of blade epimere 1-1 and be respectively equipped with the bolt hole of a plurality of mutual correspondences, these bolts hole are a row, regular arrangement equally.Every blade connecting bolt 3 penetrates the corresponding bolt hole connecting on pedestal 2 and blade hypomere 1-2 docking end, and the corresponding bolt hole on connection pedestal 2 and blade epimere 1-1 docking end, nut 4 is locked on blade connecting bolt 3, with this, blade hypomere 1-2, connection pedestal 2 and blade epimere 1-1 are connected into integral body, and then blade epimere 1-1 and blade hypomere 1-2 are formed to a complete blade.
embodiment 2
Referring to Fig. 2: the present invention is separated into two sections of blade sections by blade, be blade epimere 1-1 and blade hypomere 1-2, blade epimere 1-1 and blade hypomere 1-2 are hollow structure, blade epimere 1-1 and blade hypomere 1-2 have respectively docking end, connector element is connected on the docking end of blade epimere 1-1 and blade hypomere 1-2, and blade epimere 1-1 and blade hypomere 1-2 are connected into integral body.
Above-mentioned connector element mainly forms by connecting pedestal 2, many blade connecting bolts 3 and respective amount nut 4.Wherein, connection pedestal 2 is connected pedestal 2-2 by the first connection pedestal 2-1 with second and forms, first connects pedestal 2-1 has the termination that an exterior contour is matched with blade epimere 1-1 docking end in-profile, second connects pedestal 2-2 has the termination that an exterior contour is matched with blade hypomere 1-2 docking end in-profile, first connects pedestal 2-1 termination extends in the docking end of blade epimere 1-1, in the termination of the first connection pedestal 2-1 and the butt end portion of blade epimere 1-1, be respectively equipped with the bolt hole of a plurality of mutual correspondences, these bolts hole are a row, regular arrangement.Every blade connecting bolt 3 penetrates the corresponding bolt hole on the first connection pedestal 2-1 and blade epimere 1-1 docking end, and nut 4 is locked on blade connecting bolt 3, with this, blade epimere 1-1 is connected to pedestal 2-1 with first and connects into integral body.The second termination that connects pedestal 2-2 extends in the docking end of blade hypomere 1-2, is respectively equipped with the bolt hole of a plurality of mutual correspondences in the termination of the second connection pedestal 2-2 and the butt end portion of blade hypomere 1-2, and these bolts hole are a row, regular arrangement.Every blade connecting bolt 3 penetrates the corresponding bolt hole on the second connection pedestal 2-2 and blade hypomere 1-2 docking end, and nut 4 is locked on blade connecting bolt 3, with this, blade hypomere 1-2 is connected to pedestal 2-2 with second and connects into integral body.Between the first connection pedestal 2-1 and the second connection pedestal 2-2, be provided with the connection seam matching, the first connection pedestal 2-1 is connected pedestal 2-2 and is assembled together by connecting seam with second, at the first connection pedestal 2-1, be connected the bolt hole that is provided with a plurality of mutual correspondences on the connection seam of pedestal 2-2 with second, these bolts hole are a row, regular arrangement.Many foundation seat connecting bolt 5 penetrates respectively corresponding bolt hole, nut 6 is locked on pedestal connecting bolt 5, with this, the first connection pedestal 2-1 is connected to pedestal 2-2 with second and connects into integral body, and then blade epimere 1-1 and blade hypomere 1-2 are formed to a complete blade.
The layout rules of above-mentioned bolt hole (comprising the hole of blade connecting bolt and the hole of pedestal connecting bolt), should require and determine with specific design, can be a row, can be also many rows, can also be polygonal profile arranged in form, such as with leg-of-mutton outline etc.
Blade sections hop count of the present invention is determined according to the length of blade size of specific design, is not particular value (but at least should be two sections), if the length of blade of design is larger, the hop count of cutting apart is so more; If the length of blade of design is less, the hop count of cutting apart is so less.Blade sections after moulding sequentially combines respectively, and adjacent blade sections connects by connector element, and the quantity of connector element is less by 1 than the quantity of blade sections all the time.
Claims (1)
1. a wind power sectional-type blade, comprises at least two sections of blade sections, and each blade sections sequentially connects into integral body by connector element, and described connector element mainly forms by connecting pedestal (2), many blade connecting bolts (3) and respective amount nut (4), it is characterized in that: described connection pedestal (2) is connected pedestal (2-2) by the first connection pedestal (2-1) and forms with second, first connects pedestal (2-1) is connected pedestal (2-2) and has respectively one and be matched with and will connect the termination that blade sections is docked end with second, the first connection pedestal (2-1) is connected pedestal (2-2) termination with second extends to respectively in the docking end that will connect blade sections, at the first connection pedestal (2-1), second connects the bolt hole that is respectively equipped with a plurality of mutual correspondences on the termination of pedestal (2-2) and the docking end of blade sections, every blade connecting bolt (3) penetrates the corresponding bolt hole connecting in pedestal and blade sections, nut (4) is locked on blade connecting bolt (3), between described the first connection pedestal (2-1) and the second connection pedestal (2-2), be provided with the connection seam matching, the first connection pedestal (2-1) is connected pedestal (2-2) and is assembled together by connecting seam with second, at the first connection pedestal (2-1), be connected the bolt hole that is provided with a plurality of mutual correspondences on the connection seam of pedestal (2-2) with second, many foundation seat connecting bolt (5) penetrates respectively corresponding bolt hole, and nut (6) is locked on pedestal connecting bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110444267.6A CN102518568B (en) | 2011-12-27 | 2011-12-27 | Wind power sectional-type blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110444267.6A CN102518568B (en) | 2011-12-27 | 2011-12-27 | Wind power sectional-type blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518568A CN102518568A (en) | 2012-06-27 |
| CN102518568B true CN102518568B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110444267.6A Active CN102518568B (en) | 2011-12-27 | 2011-12-27 | Wind power sectional-type blade |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192865A (en) * | 1985-02-21 | 1986-08-27 | Yamaha Motor Co Ltd | Rotor blade structure of wind mill |
| DE19962989B4 (en) * | 1999-12-24 | 2006-04-13 | Wobben, Aloys, Dipl.-Ing. | Rotor blade for wind turbines |
| JP2004011616A (en) * | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | Wind mill blade structure for wind power generator |
| EP1584817A1 (en) * | 2004-04-07 | 2005-10-12 | Gamesa Eolica, S.A. (Sociedad Unipersonal) | Wind turbine blade |
| ES2319599B1 (en) * | 2007-01-08 | 2010-01-26 | Guillermo Petri Larrea | REVERSIBLE SECTIONING SYSTEM IN VARIOUS PARTS OF AEROGENERATING BLADES. |
| US8510947B2 (en) * | 2008-11-14 | 2013-08-20 | General Electric Company | Turbine blade fabrication |
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- 2011-12-27 CN CN201110444267.6A patent/CN102518568B/en active Active
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| CN102518568A (en) | 2012-06-27 |
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