CN102606419A - Sectional type wind wheel blade and connection mechanism and mounting method thereof - Google Patents
Sectional type wind wheel blade and connection mechanism and mounting method thereof Download PDFInfo
- Publication number
- CN102606419A CN102606419A CN2012101110118A CN201210111011A CN102606419A CN 102606419 A CN102606419 A CN 102606419A CN 2012101110118 A CN2012101110118 A CN 2012101110118A CN 201210111011 A CN201210111011 A CN 201210111011A CN 102606419 A CN102606419 A CN 102606419A
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- Prior art keywords
- frock
- blade
- wind wheel
- bindiny mechanism
- bolt
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- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 11
- 239000003365 glass fiber Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 241000341910 Vesta Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005507 spraying 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
-
- 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
Abstract
The invention relates to a sectional type wind wheel blade and a connection mechanism and a mounting method thereof. The connection mechanism is a connection fixture or is formed by splicing a plurality of connection fixtures, wherein each connection fixture is provided with more than one nut accommodating groove or through hole; and a pair of screw holes is symmetrically formed on two sides of each nut accommodating groove or through hole. The wind wheel blade comprises at least two sections of blade parts and the connection mechanism, wherein the adjacent blade parts are connected to form a whole through bolts and the connection mechanism. The mounting method comprises the following steps of screwing one end of each bolt into a pre-buried bolt sleeve of each blade part; positioning the adjacent blade parts by using a blade positioning fixture with a horizontal guide rail or a hanging method; and inserting the other end of each bolt into the screw holes of each connection fixture of the connection mechanism, and fastening by a nut. The connection mechanism has the characteristics of stable structure and the like, and is easy to mount; an aim that the large wind wheel blade has a simple structure and is manufactured in sections and mounted on the site is fulfilled.
Description
Technical field
The present invention relates to a kind of fan blade of wind power plant, particularly relate to a kind of segmented wind wheel blade and bindiny mechanism and installation method.
Background technique
Face in the world today under the situation of the energy, weather and the environmental problem that become increasingly conspicuous, the renewable energy sources of this high-quality of wind energy receives much concern.Wind wheel blade progressively develops towards the maximization direction as the vitals of wind power system.At present, the length of blade of the V164-7.0MW offshore wind turbine that Vestas is is researching and developing is 80m, and the length of blade that the 6.0MW offshore wind farm unit of power manufacturing closes the Electricity Federation in state is 66.5m.Yet because wind distribution is extensive, remote; The communications and transportation difficulty of large fan blade is very big, cost is high; Near wind field, build simple and easy factory building and make the difficult again realization of solution of blade, these restraining factors become the obstacle of macrophyll chip technology development.In this case, the large fan blade adopts segmentation manufacturing, transportation and the on-the-spot effective way that addresses the above problem that is mounted for.
Summary of the invention
The technical problem that the present invention will solve provides a kind of bindiny mechanism of segmented wind wheel blade, makes it simple in structure, and is easy and simple to handle, is convenient to on-the-spot the installation.
For solving the problems of the technologies described above; The bindiny mechanism of a kind of segmented wind wheel blade of the present invention; It is one and connects frock or be spliced by a plurality of connection frocks; Described connection frock is provided with one with upper cap nut containing groove or through hole, and is provided with a pair of screw at each nut containing groove or through hole bilateral symmetry.
As a kind of improvement of the present invention, described bindiny mechanism connects frock by a plurality of " mouth " font to be spliced, and described " mouth " font connects the frock middle part and is provided with a ccontaining through hole of nut.
Described bindiny mechanism connects frock by a plurality of " saying " font to be spliced, and described " saying " font connects the frock middle part and is provided with two ccontaining through holes of nut.
Described bindiny mechanism is that the appearance profile integral type consistent with the aerofoil profile of blade joint connects frock, and described integral type connects the frock middle part and is provided with the ccontaining through hole of a plurality of nuts.
The present invention also provides above-mentioned segmented wind wheel blade, makes it comprise at least two sections blade parts, thereby is convenient to make and transportation, overcomes the deficiency of existing fan blade.
For solving the problems of the technologies described above, a kind of segmented wind wheel blade of the present invention comprises at least two sections blade parts and above-mentioned bindiny mechanism, and wherein, adjacent blades portion connects as one through bolt and described bindiny mechanism.
As further improvement, the pre-buried a plurality of bolt sleeves of the connecting end of described blade part, described bolt one end and bolt sleeve are spirally connected, and the other end passes the screw of connection frock and fixes through nut.
Described nut is provided with check washer with being connected between the frock.
Described blade part is being equipped with fabric reinforcement near the connecting end place, and this fabric reinforcement is that median plane symmetrical layers lay-up is established glasscloth with the crossbeam and the core of blade part, and thickness increases progressively the uniform thickness at the most proximal end place gently from connecting far-end to near-end.
The outer surface of described connection frock and blade part connecting end also is mounted with the glass fibre reinforced plastics covering, and places the PVC liner at the glass fibre reinforced plastics covering with being connected between the frock.
In addition, the present invention provides a kind of installation method of above-mentioned segmented wind wheel blade again, may further comprise the steps: bolt one end is screwed in the pre-embedded bolt cover of blade part; Use has the blade positioning tool of horizontal guide rail or uses the method for lifting that adjacent vanes portion is positioned; The bolt the other end is inserted in the connection frock screw of bindiny mechanism, and use nut fastening.
After adopting such design; The present invention adopts the wind wheel blade structural type of at least two sections blade parts; And provide the simple and effective subsection blade of a cover to assemble bindiny mechanism; Have structural stability, characteristics such as simple are installed, can realize that large-scale wind wheel blade is simple in structure, segmentation manufacturing, field erected target.
Description of drawings
Above-mentioned only is the general introduction of technological scheme of the present invention, understands technological means of the present invention in order can more to know, below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
Fig. 1 is the structural representation of a kind of segmented wind wheel blade of the present invention.
Fig. 2 is the blade part structural representation of a kind of segmented wind wheel blade of the present invention.
Fig. 3 is that bindiny mechanism of the present invention " mouth " font connects the tool structure schematic representation.
Fig. 4 is the bindiny mechanism that formed of connection frock shown in Figure 3 and the schematic representation that is connected of blade part.
Fig. 5 is that font connection tool structure schematic representation " is said " by bindiny mechanism of the present invention.
Fig. 6 is the bindiny mechanism that formed of connection frock shown in Figure 5 and the schematic representation that is connected of blade part.
Fig. 7 is that the integral type of bindiny mechanism of the present invention connects the tool structure schematic representation.
Fig. 8 is the structural representation that bindiny mechanism shown in Figure 7 is connected with blade part.
Embodiment
See also shown in Figure 1ly, segmented wind wheel blade of the present invention comprises at least two sections blade parts 1,2 and bindiny mechanism of the present invention 3, and wherein, adjacent blades portion 1,2 connects as one through bolt 6 and bindiny mechanism 3.
Specifically, please cooperate and consult shown in Figure 2ly, blade part 1,2 uses segmented moulds or integral type mould to make, to guarantee to connect the whole aerodynamic configuration of rear blade.The connecting end of blade part 1,2 is embedded with a plurality of bolt sleeves 5; In order to guarantee the join strength of pre-embedded bolt cover 5; The join domain of two blade parts 1,2 must have enough intensity, rigidity, thus blade part 1,2 near the connecting end place also lamination be equipped with fabric reinforcement 4.
The process of pre-embedded bolt cover 5 and laying fiber lay down reinforced layer 4 is following: glasscloth 41,42 is carried out lamination according to designing requirement lay; Carrying out the installation and the core of crossbeam then lays; Be median plane symmetrical laying glasscloth with crossbeam and core then; Fiber layer thickness increases progressively from connecting far-end to near-end gently, and the layer of fibers of join domain root (being the connecting end place) is a blanket layer.Use positioning tool all to be needed pre-buried bolt sleeve 5 is pre-buried to be fixed on fibrolaminar relevant position then, and fill the wedge-shaped bar of processing with sandwich materials such as PVC or Balsa wood in the gap of bolt sleeve 5.Decide according to the concrete form of the connection frock of using 3 the pre-buried position of bolt sleeve 5, can be evenly to be equally spaced, and also can be even non-being equally spaced.Particular location is like Fig. 5, shown in 6.At last, can produce the subsection blade housing that is embedded with bolt sleeve through rational vacuum perfusion process.After installing technologies such as shear web, matched moulds, curing, the demoulding, subsection blade housing experience can obtain segmented wind wheel blade portion.
Bindiny mechanism 3 of the present invention is one and connects frock or be spliced by a plurality of connection frocks, connects frock and be provided with one with upper cap nut containing groove or through hole, and be provided with a pair of screw at each nut containing groove or through hole bilateral symmetry.
Please cooperate consult shown in Figure 3; Bindiny mechanism 3 of the present invention can adopt a plurality of " mouth " font to connect frock 31 and be spliced; The middle part that " mouth " font connects frock 31 is provided with a ccontaining through hole of nut; The ccontaining through hole bilateral symmetry of nut is provided with a pair of screw, can realize the connection of one group of bolt, and a plurality of " mouth " font connects frock 31 combinations to be used to connect subsection blade portion.
Please cooperate consult shown in Figure 4; When connecting subsection blade; End with bolt 6 screws in the pre-embedded bolt cover 5 of blade part 1 or 2 earlier, and the other end with bolt 6 inserts the screw that " mouth " font connects frock 31 again, uses 8 pairs of bolts 6 of hexagon nut 7 and check washer to be connected fastening then.Use a plurality of such " mouth " fonts to connect frock 31, can realize the connection of subsection blade through bolted mode.
Please cooperate consult shown in Figure 5; Bindiny mechanism 3 of the present invention also can adopt a plurality of " saying " font to connect frock 32 and be spliced; The middle part of " saying " font connection frock 32 is provided with two ccontaining through holes of nut; The ccontaining through hole of each nut both sides all are arranged with a pair of screw, can realize the connection of two groups of bolts, and a plurality of " saying " font connects frock 32 combinations to be used to connect subsection blade portion.
Please cooperate consult shown in Figure 6; When connecting subsection blade; End with bolt 6 screws in the pre-embedded bolt cover 5 of blade part 1 or 2 earlier, and the other end with bolt 6 inserts the screw that " saying " font connects frock 32 again, uses 8 pairs of bolts 6 of hexagon nut 7 and check washer to be connected fastening then.Use a plurality of such " saying " fonts to connect frock 32, can realize the connection of subsection blade through bolted mode.
Please cooperate consult shown in Figure 7; Bindiny mechanism 3 of the present invention also can adopt integral type to connect frock 33; The aerofoil profile of its external form profile and blade joint is unanimous on the whole; Integral type connects frock 33 and is provided with the ccontaining through hole of a plurality of nuts, and the ccontaining through hole bilateral symmetry of each nut is provided with a pair of screw, to adapt to different on-the-spot installation requirements.For avoiding stress to concentrate, connect frock and adopt circular shape at position near the trailing edge place.
Please cooperate consult shown in Figure 8; When connecting subsection blade; End with bolt 6 screws in the pre-embedded bolt cover 5 of blade part 1 or 2 earlier, and the other end with bolt 6 inserts the screw that integral type connects frock 33 again, uses 8 pairs of bolts 6 of hexagon nut 7 and check washer to be connected fastening then.Use such integral type to connect frock 33, can realize the connection of subsection blade through bolted mode.
The present invention at first screws in bolt in the pre-embedded bolt cover of subsection blade portion when the on-the-spot installation of wind field, uses the blade positioning tool that has horizontal guide rail then or uses the method for lifting that adjacent vanes portion is positioned.The relevant position that then bolt insert is connected frock uses the hollow type hydraulic spanner hexagon nut of screwing can realize the connection of subsection blade then, and three kinds of the present invention connect frocks and all have easy for installation, reliable structure advantage.
In order to guarantee the integrity of blade aerodynamic configuration, subsection blade through connect frock connect accomplish after, install and fix at the outer surface of linkage section (promptly connecting frock 3 and blade part) and to make good glass fibre reinforced plastics covering in advance near the connecting end place.This glass fibre reinforced plastics covering adopts the method for priming by vacuum on blade mold, to make; Be fixed on the connecting end of two blade parts through screw or bonding mode; The glass fibre reinforced plastics covering can be intact the sectional area of covering blade, can guarantee the integrity of blade aerodynamic configuration.For preventing that the glass fibre reinforced plastics covering from subsiding under the effect of external force, the glass covering be connected place well cutting in advance between the frock the PVC material as liner.Glass fibre reinforced plastics covering fixing can use screw fix perhaps to use adhesive to be adhesively fixed.After completion is fixing, simply polished in the corner of glass fibre reinforced plastics covering, make the aerodynamic configuration smooth excessiveness.Paint at glass fibre reinforced plastics covering outer surface through the mode of roller coat or spraying at last.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (10)
1. the bindiny mechanism of a segmented wind wheel blade; It is characterized in that it is one and connects frock or be spliced by a plurality of connection frocks; Described connection frock is provided with one with upper cap nut containing groove or through hole, and is provided with a pair of screw at each nut containing groove or through hole bilateral symmetry.
2. the bindiny mechanism of a kind of segmented wind wheel blade according to claim 1 is characterized in that described bindiny mechanism connects frock by a plurality of " mouth " font to be spliced, and described " mouth " font connects the frock middle part and is provided with a ccontaining through hole of nut.
3. the bindiny mechanism of a kind of segmented wind wheel blade according to claim 1 is characterized in that described bindiny mechanism connects frock by a plurality of " saying " font to be spliced, and described " saying " font connects the frock middle part and is provided with two ccontaining through holes of nut.
4. the bindiny mechanism of a kind of segmented wind wheel blade according to claim 1; It is characterized in that described bindiny mechanism is that the appearance profile integral type consistent with the aerofoil profile of blade joint connects frock, described integral type connects the frock middle part and is provided with the ccontaining through hole of a plurality of nuts.
5. a segmented wind wheel blade is characterized in that comprising each described bindiny mechanism among at least two sections blade parts and the claim 1-4, and wherein, adjacent blades portion connects as one through bolt and described bindiny mechanism.
6. a kind of segmented wind wheel blade according to claim 5 is characterized in that the pre-buried a plurality of bolt sleeves of connecting end of described blade part, and described bolt one end and bolt sleeve are spirally connected, and the other end passes the screw that connects frock and fixes through nut.
7. a kind of segmented wind wheel blade according to claim 6 is characterized in that described nut is provided with check washer with being connected between the frock.
8. a kind of segmented wind wheel blade according to claim 5; It is characterized in that described blade part is being equipped with fabric reinforcement near the connecting end place; This fabric reinforcement is that median plane symmetrical layers lay-up is established glasscloth with the crossbeam and the core of blade part; Thickness increases progressively the uniform thickness at the most proximal end place gently from connecting far-end to near-end.
9. a kind of segmented wind wheel blade according to claim 5 is characterized in that the outer surface of described connection frock and blade part connecting end also is mounted with the glass fibre reinforced plastics covering, and places the PVC liner at the glass fibre reinforced plastics covering with being connected between the frock.
10. the installation method of each described segmented wind wheel blade among the claim 6-9 is characterized in that may further comprise the steps:
Bolt one end is screwed in the pre-embedded bolt cover of blade part;
Use has the blade positioning tool of horizontal guide rail or uses the method for lifting that adjacent vanes portion is positioned;
The bolt the other end is inserted in the connection frock screw of bindiny mechanism, and use nut fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101110118A CN102606419A (en) | 2012-04-16 | 2012-04-16 | Sectional type wind wheel blade and connection mechanism and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101110118A CN102606419A (en) | 2012-04-16 | 2012-04-16 | Sectional type wind wheel blade and connection mechanism and mounting method thereof |
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| Publication Number | Publication Date |
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| CN102606419A true CN102606419A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101110118A Pending CN102606419A (en) | 2012-04-16 | 2012-04-16 | Sectional type wind wheel blade and connection mechanism and mounting method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878183A (en) * | 2012-10-10 | 2013-01-16 | 国电联合动力技术有限公司 | Connector and sectional type wind turbine blade using same |
| CN102886840A (en) * | 2012-09-25 | 2013-01-23 | 内蒙古航天亿久科技发展有限责任公司 | Die for manufacturing blades with multiple sizes for wind driven generator |
| CN103978703A (en) * | 2014-05-15 | 2014-08-13 | 北京金风科创风电设备有限公司 | Positioning device of embedded screw sleeve and manufacturing method of segmented blade shell |
| CN104508296A (en) * | 2012-05-30 | 2015-04-08 | 尤文能量有限责任公司 | Apparatus for assembling blade sections |
| WO2016048148A1 (en) * | 2014-09-23 | 2016-03-31 | Viventus Holding B.V. | Segmented wind turbine blade and bushing for use in a wind turbine blade |
| CN105508131A (en) * | 2016-01-18 | 2016-04-20 | 广东明阳风电产业集团有限公司 | Segmented and combined type wind turbine generator blade and manufacturing method thereof |
| CN105952580A (en) * | 2016-05-24 | 2016-09-21 | 白银中科宇能科技有限公司 | Wind power blade and manufacturing technology thereof |
| CN106368912A (en) * | 2016-10-18 | 2017-02-01 | 清华大学 | Large wind power sectioned blade with unit module combined butt joint |
| CN107191323A (en) * | 2016-03-15 | 2017-09-22 | 西门子公司 | Bolted joints for rotor blade section |
| CN107620668A (en) * | 2017-09-12 | 2018-01-23 | 明阳智慧能源集团股份公司 | A kind of Anti-Typhoon type offshore wind turbine subsection blade |
| WO2021063495A1 (en) * | 2019-10-02 | 2021-04-08 | Nordex Energy Se & Co. Kg | Wind turbine rotor blade, mounting sleeve and method for connecting two rotor blade segments |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104508296A (en) * | 2012-05-30 | 2015-04-08 | 尤文能量有限责任公司 | Apparatus for assembling blade sections |
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| WO2016048148A1 (en) * | 2014-09-23 | 2016-03-31 | Viventus Holding B.V. | Segmented wind turbine blade and bushing for use in a wind turbine blade |
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| CN105508131A (en) * | 2016-01-18 | 2016-04-20 | 广东明阳风电产业集团有限公司 | Segmented and combined type wind turbine generator blade and manufacturing method thereof |
| 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 |
| CN105952580A (en) * | 2016-05-24 | 2016-09-21 | 白银中科宇能科技有限公司 | Wind power blade and manufacturing technology thereof |
| CN105952580B (en) * | 2016-05-24 | 2018-09-25 | 白银中科宇能科技有限公司 | A kind of wind electricity blade and its manufacture craft |
| CN106368912A (en) * | 2016-10-18 | 2017-02-01 | 清华大学 | Large wind power sectioned blade with unit module combined butt joint |
| CN107620668A (en) * | 2017-09-12 | 2018-01-23 | 明阳智慧能源集团股份公司 | A kind of Anti-Typhoon type offshore wind turbine subsection blade |
| CN107620668B (en) * | 2017-09-12 | 2024-01-05 | 明阳智慧能源集团股份公司 | Typhoon-resistant offshore wind turbine segmented blade |
| WO2021063495A1 (en) * | 2019-10-02 | 2021-04-08 | Nordex Energy Se & Co. Kg | Wind turbine rotor blade, mounting sleeve and method for connecting two rotor blade segments |
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Application publication date: 20120725 |