CN203670111U - Sectional type fan blade - Google Patents
Sectional type fan blade Download PDFInfo
- Publication number
- CN203670111U CN203670111U CN201320804544.4U CN201320804544U CN203670111U CN 203670111 U CN203670111 U CN 203670111U CN 201320804544 U CN201320804544 U CN 201320804544U CN 203670111 U CN203670111 U CN 203670111U
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- hole
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- wind turbine
- blade
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- 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
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- 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)
- Wind Motors (AREA)
Abstract
The utility model discloses a sectional type fan blade. The sectional type fan blade comprises at least two fan blade sections, wherein every two adjacent fan blade sections are connected through a connecting structure which is installed on the inner surfaces of the two adjacent fan blade sections. According to every two adjacent fan blade sections, a first hole is formed in the surface of one fan blade section, a second hole is formed in the surface of the other fan blade section, the corresponding connecting structure comprises a first connector contained in the first hole, the first connector is connected with one end of a connecting rod, the other end of the connecting rod is connected with a second connector, the connecting rod is located on the inner surfaces of the two adjacent fan blade sections, and the second connector is contained in the second hole. The sectional type fan blade is applied to a window power generator unit, thereby resolving the problem in the prior art that the operation space of a spanner is small when the sectional type fan blade is connected.
Description
Technical field
The utility model relates to technical field of wind power generation, relates in particular to a kind of sectional wind turbine blade.
Background technique
Sectional wind turbine blade is that conventional fan blade (hereinafter to be referred as blade) is divided into two sections or multistage, so that a kind of new technology of developing in mountain area transportation compared with long blade.Transport of blades is arrived behind the installation ground of blower fan, the fan blade of segmentation be reconnected.Owing to being subject to fan field ground environmental limit, the installation requirement of sectional wind turbine blade is simple to operation.Especially under the condition that environment is severe, instrument condition is limited at blower fan scene, it is better that the installment work of sectional wind turbine blade is more simple and easy to implement.
At present, the connection of sectional wind turbine blade adopts the modes such as splicing, bolt connection or built-in turnbuckle connection conventionally.Wherein, bolt connects to be connected with built-in turnbuckle all needs to use nut installation fixing.For tightening nut, conventionally need on blade, slot, so that spanner operates in space in limited groove.
For example, notice of authorization number is: the Chinese patent of CN20259699U, the name that model utility is created is called: a kind of sectional wind turbine blade, this fan blade adopts T-shaped bolted mode.But, because T-shaped bolt is arranged on the construction layer inside of fan blade, when fastening nut, can only in the confined space of slotted hole, carry out the less problem in the space of spanner when therefore this sectional wind turbine blade exists fastening nut.
Model utility content
Embodiment of the present utility model provides a kind of sectional wind turbine blade, the less problem in space of spanner when solving fastening nut.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
A kind of sectional wind turbine blade, comprises at least two sections of fan blades, and two sections of adjacent described blade pass are crossed linkage structure and connected, and described linkage structure is arranged on the internal surface of described two sections of adjacent blades.
Preferably, one section of blade surface in described two sections of adjacent blades has the first hole, another section of blade surface has the second hole, described linkage structure comprises: be contained in the first link in described the first hole, described the first link is connected with one end of connecting rod, and the other end of described connecting rod is connected with the second link; Described connecting rod is positioned at the internal surface of described two sections of adjacent blades; Described the second link is contained in described the second hole.
Wherein, described the first hole is circular hole, and described the first link is the cylindrical body coordinating with described circular hole, and this cylindrical inside is provided with radially internal thread, and described connecting rod is double threaded screw, and this double threaded screw one end and described radially internal thread are spirally connected; Described the second link is that cross section is the semicylinder of semicircle, and described semicylinder is provided with through hole in radial direction, and the other end of described double threaded screw is spirally connected with a nut through after described through hole.
Preferably, described semicylinder also comprises lengthening part, and described lengthening part is contained in described the second hole, and the cross section of described lengthening part is that circle, described the second hole are circular port.
Wherein, between described semicylinder and described nut, be provided with check washer.
Preferably, described the first hole and described the second hole are circular hole, described the first link and described the second link are the cylindrical body correspondingly mating with described the first hole and the second hole respectively, described cylindrical inside is provided with axial internal thread, described connecting rod is strip plate, described strip plate is provided with two through holes, in described two through holes, wears respectively a bolt, and described bolt and described axial internal thread are spirally connected.
Wherein, between described strip plate and described bolt, be provided with check washer.
Preferably, the outer surface of two sections of adjacent described blade joints is provided with sealing layer.
Wherein, the joint of described two sections of blades applies sealer.
In the sectional wind turbine blade that the utility model embodiment provides, due to adjacent two sections of blades be connected by linkage structure, and, linkage structure is arranged on the internal surface of two sections of adjacent blades, be the thick layer inside that linkage structure is not arranged on blade, therefore, while carrying out subsection blade connection, setting tool is that the internal surface of the blade in the inner chamber of blade carries out fitting operation, operating space in blade inner chamber is very large, while having avoided like this carrying out two sections of adjacent blades connections in prior art, the situation that setting tool (for example spanner) operates in the perforate of vane thickness layer, thereby the less problem in operating space of spanner while having solved connection segment formula fan blade in prior art.
Accompanying drawing explanation
The structural representation of a kind of sectional wind turbine blade that Fig. 1 provides for the utility model embodiment;
The structural representation of the another kind of sectional wind turbine blade that Fig. 2 a provides for the utility model embodiment;
Fig. 2 b is the schematic diagram of linkage structure in the sectional wind turbine blade shown in Fig. 2 a;
The structural representation of another sectional wind turbine blade that Fig. 3 a provides for the utility model embodiment;
Fig. 3 b is the schematic diagram of linkage structure in the sectional wind turbine blade shown in Fig. 3 a;
The structural representation of another sectional wind turbine blade that Fig. 4 provides for the utility model embodiment;
The schematic diagram of a kind of linkage structure that Fig. 5 provides for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of sectional wind turbine blade, comprise at least two sections of fan blades (11 and 12), adjacent two sections of blades (11 and 12) are connected by linkage structure 13, and linkage structure 13 is arranged on the internal surface of adjacent two sections of blades (11 and 12).
In the sectional wind turbine blade that the utility model provides, because adjacent two sections of blades (11 and 12) are connected by linkage structure 13, and, linkage structure 13 is arranged on the internal surface of adjacent two sections of blades (11 and 12), be the thick layer inside that linkage structure 13 is not arranged on blade (11 and 12), therefore, carry out subsection blade (11 and 12) while being connected, setting tool is that the internal surface of the blade in the inner chamber of blade (11 and 12) carries out fitting operation, operating space in blade inner chamber is very large, adjacent two sections of blades (11 and 12) are avoided like this carrying out in prior art while being connected, the situation that setting tool (for example spanner) operates in the perforate of vane thickness layer, thereby the less problem in operating space of spanner while having solved connection segment formula fan blade in prior art.
Sectional wind turbine blade of the prior art, on two sections of adjacent blades, not only respectively have a through hole, but also having axial through hole in the thick layer of blade, when this through hole is offered, technology difficulty is larger, therefore has many, the problem that cost is higher consuming time when this sectional wind turbine blade of making.
And in the sectional wind turbine blade that the utility model embodiment provides, particularly, refer again to Fig. 1, one section of blade 11 surface in two sections of adjacent blades can have the first hole 131, another section of blade 12 surfaces can have the second hole 134, linkage structure 13 can comprise: be contained in the first link 132 in the first hole 131, the first link 132 is connected with one end of connecting rod 133, and the other end of connecting rod 133 can be connected with the second link 135; Connecting rod 133 is positioned at the internal surface of two sections of adjacent blades; The second link 135 is contained in the second hole 134.
Owing to only having a hole (131 and 133) on every section of blade (11 and 12), and in each hole (131 and 133), correspondingly hold a link (132 and 135), the connecting rod 133 of the internal surface by being positioned at adjacent two sections of blades (11 and 12) couples together link (132 and 135) again, just can complete the connection of adjacent two sections of blades (11 and 12), without offer axial bore in every section of blade (11 and 12) thick layer, therefore reduced the preparation process difficulty of subsection blade (11 and 12), thereby the making used time of this sectional wind turbine blade (11 and 12) reduces, cost is lower.
Preferably, referring to Fig. 2 a and Fig. 2 b, in above-mentioned sectional wind turbine blade, the first hole 131 can be circular hole 21, the first link 132 can be the cylindrical body 22 coordinating with circular hole 21, the inside of this cylindrical body 22 can be provided with radially internal thread, and connecting rod 133 can be double threaded screw 23, and these double threaded screw 23 one end and radially internal thread are spirally connected; The second link 135 can be the semicylinder 24 that cross section is semicircle, and semicylinder 24 is provided with through hole 241 in radial direction, and the other end of double threaded screw 23 can be spirally connected with a nut 25 through after through hole 241.
While carrying out sectional wind turbine blade attended operation, detailed process is: the cylindrical body 22 coordinating with this circular hole 21 is contained in this circular hole 21, semicylinder 24 is contained in the second hole 134; Again one end of double threaded screw 23 and internal thread are radially spirally connected, by the other end of double threaded screw 23 through this through hole 241, then nut 25 and the other end of double threaded screw 23 are spirally connected.While carrying out aforesaid operations, when nut 25 is spirally connected with the other end of double threaded screw 23, can adopt spanner, due to double threaded screw 23 be positioned at blade (11 and 12) surface and not in the thick layer of blade (11 and 12), therefore the operation of spanner is not subject to spatial constraints, has advantages of easy and simple to handle and easy realization.
Referring to Fig. 3 a and Fig. 3 b, semicylinder 24 wherein can also comprise lengthening part 31, and lengthening part 31 is contained in the second hole 134, and the cross section of lengthening part is that circle, the second hole 134 can be circular port 32.The difficulty of processing of circular port 32 is less, and lengthening part 31 cross sections of semicylinder 24 are circular, can be designed as lengthening part 31 and just mate with circular port 32, thereby avoid semicylinder 24 to rock in circular port 32.
Referring to Fig. 4, can also be on two sections of adjacent blades, to offer the first hole 131 of measure-alike circle and the second hole 134(circular hole 21 that the first hole and the second hole are same size), the first link 132 is cylindrical body 22, the second link 135 is semicylinder 24, but its lengthening part 31 is cylindrical body, in the time that above-mentioned parts are connected with two sections of blades (11 and 12), in the first hole 131, can alternately hold cylindrical body 22 and semicylinder 24, so that install, improve installation efficiency.
In above-mentioned sectional wind turbine blade, referring to Fig. 2 b, between semicylinder 24 and nut 25, be provided with check washer 26, check washer 26 can increase the area of contact between semicylinder 24 and nut 25, thereby it is loosening to prevent that being connected between semicylinder 24 and nut 25 from occurring, and the probability of stress concentration can fall.
Referring to Fig. 1 and Fig. 5, preferably, in above-mentioned sectional wind turbine blade, the first hole 131 and the second hole 134 can be circular hole (not shown), the first link 132 and the second link 135 can be the cylindrical body 54 correspondingly mating with the first hole 131 and the second hole 134 respectively, the inside of cylindrical body 54 is provided with axial internal thread, connecting rod 133 can be strip plate 51, strip plate 51 is provided with two through holes 511, in two through holes 511, can wear respectively a bolt 52, bolt 52 can be spirally connected with axial internal thread.
While carrying out sectional wind turbine blade attended operation, detailed process is: two cylindrical bodys 54 are put into respectively to two described circular holes, again bolt 52 is penetrated respectively in the two through hole 511 of strip plate 51, then by bolt 52 respectively with two cylindrical bodys 54 on axial internal thread be spirally connected, completed the connection of adjacent two sections of blades (11 and 12).Wherein, two cylindrical bodys 54 can be the identical cylindrical bodys with same size, and the size of two circular holes is also identical accordingly, that is to say the circular hole that only need open a kind of specification, the cylindrical body 54 of making a kind of specification, just can satisfy the demands.Technology difficulty when greatly reducing out like this circular hole or making cylindrical body 54, has improved the efficiency of making sectional wind turbine blade, has also reduced cost simultaneously.
Wherein, between strip plate 51 and bolt 52, can be provided with check washer 53.Check washer 53 can prevent between strip plate 51 and bolt 52 occurring loosening, also can reduce on the surface of contact of strip plate 51 and bolt 52 the concentrated probability of stress occurs simultaneously.
In above-mentioned sectional wind turbine blade, the outer surface of two sections of adjacent blade joints can be provided with sealing layer.Sealing layer can seal the joint between two sections of adjacent blades.Sealing layer can be the mixture of sticking with paste glass multilayer woven glass fabric and resin at the outer surface hand of blade, after resin solidification, again strengthening course is polished, Puttying, and then brushing corrosion resistant coating, prevent that rainwater etc. from entering the miscellaneous part of sealing layer and then corrosion blade internal surface.
In above-mentioned sectional wind turbine blade, the joint of two sections of blades can apply sealer.Sealer can play to the joint of two sections of blades the effect of sealing, thereby prevents that rainwater etc. from entering the inside of blade along the joint of two sections of blades.
In the description of this specification, specific features, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (6)
1. a sectional wind turbine blade, comprises at least two sections of fan blades, and two sections of adjacent described blade pass are crossed linkage structure and connected, and it is characterized in that, described linkage structure is arranged on the internal surface of described two sections of adjacent blades;
One section of blade surface in described two sections of adjacent blades has the first hole, another section of blade surface has the second hole, described linkage structure comprises: be contained in the first link in described the first hole, described the first link is connected with one end of connecting rod, and the other end of described connecting rod is connected with the second link; Described connecting rod is positioned at the internal surface of described two sections of adjacent blades; Described the second link is contained in described the second hole;
Described the first hole is circular hole, and described the first link is the cylindrical body coordinating with described circular hole, and this cylindrical inside is provided with radially internal thread, and described connecting rod is double threaded screw, and this double threaded screw one end and described radially internal thread are spirally connected; Described the second link is that cross section is the semicylinder of semicircle, and described semicylinder is provided with through hole in radial direction, and the other end of described double threaded screw is spirally connected with a nut through after described through hole;
Described semicylinder also comprises lengthening part, and described lengthening part is contained in described the second hole, and the cross section of described lengthening part is that circle, described the second hole are circular port.
2. sectional wind turbine blade according to claim 1, is characterized in that, between described semicylinder and described nut, is provided with check washer.
3. sectional wind turbine blade according to claim 1, it is characterized in that, described the first hole and described the second hole are circular hole, described the first link and described the second link are the cylindrical body correspondingly mating with described the first hole and the second hole respectively, described cylindrical inside is provided with axial internal thread, and described connecting rod is strip plate, and described strip plate is provided with two through holes, in described two through holes, wear respectively a bolt, described bolt and described axial internal thread are spirally connected.
4. sectional wind turbine blade according to claim 3, is characterized in that, between described strip plate and described bolt, is provided with check washer.
5. according to the sectional wind turbine blade described in claim 1-4 any one, it is characterized in that, the outer surface of two sections of adjacent described blade joints is provided with sealing layer.
6. according to the sectional wind turbine blade described in claim 1-4 any one, it is characterized in that, the joint of described two sections of blades applies sealer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804544.4U CN203670111U (en) | 2013-12-06 | 2013-12-06 | Sectional type fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804544.4U CN203670111U (en) | 2013-12-06 | 2013-12-06 | Sectional type fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670111U true CN203670111U (en) | 2014-06-25 |
Family
ID=50966416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804544.4U Expired - Lifetime CN203670111U (en) | 2013-12-06 | 2013-12-06 | Sectional type fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670111U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041581A (en) * | 2015-05-26 | 2015-11-11 | 吕雪萍 | Draught fan for disassembling and assembling lengthened blades to improve efficiency |
| CN107191323A (en) * | 2016-03-15 | 2017-09-22 | 西门子公司 | Bolted joints for rotor blade section |
| CN111622905A (en) * | 2020-06-10 | 2020-09-04 | 三一重能有限公司 | Segmented blade and blade connection method |
-
2013
- 2013-12-06 CN CN201320804544.4U patent/CN203670111U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041581A (en) * | 2015-05-26 | 2015-11-11 | 吕雪萍 | Draught fan for disassembling and assembling lengthened blades to improve efficiency |
| 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 |
| CN111622905A (en) * | 2020-06-10 | 2020-09-04 | 三一重能有限公司 | Segmented blade and blade connection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |