CN206158927U - Aerogenerator segmentation blade - Google Patents
Aerogenerator segmentation blade Download PDFInfo
- Publication number
- CN206158927U CN206158927U CN201621113402.3U CN201621113402U CN206158927U CN 206158927 U CN206158927 U CN 206158927U CN 201621113402 U CN201621113402 U CN 201621113402U CN 206158927 U CN206158927 U CN 206158927U
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- CN
- China
- Prior art keywords
- blade
- reverse thread
- double
- double end
- flange
- 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
- 230000011218 segmentation Effects 0.000 title abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 208000013201 Stress fracture Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- Wind Motors (AREA)
Abstract
The utility model discloses an aerogenerator segmentation blade, it includes: two section at least blades, and the blade coupling assembling of setting between adjacent two sections blades, blade coupling assembling includes the reverse screw thread double -screw bolt group of vane end face abutting part and double -end, and the reverse screw thread double -screw bolt group of double -end has the reverse screw thread double -screw bolt of a plurality of double -ends, in two sections adjacent blades, a tip of the reverse screw double -screw bolt of double -end in rather than a blade link to each other, another tip of the reverse screw double -screw bolt of double -end links to each other with the another one blade, vane end face abutting part's a terminal surface in rather than the terminal surface of a blade offset, another terminal surface of vane end face abutting part offsets with the terminal surface of another one blade. The utility model discloses not only can adopt the blade fragmented transport, the realization personnel are convenient, connected segmented blade reliably, have guaranteed in addition that the pneumatic performance of two sections root fixings department is not lost, possess locking, non -maintaining ability, even run into possible trouble, the maintenance processing is also very convenient.
Description
Technical field
The utility model is related to a kind of wind-driven generator subsection blade.
Background technology
At present, the Chinese patent of Publication No. CN102192110 B discloses a kind of sectional blade of wind turbine and its assembling
Method, wherein valve sectional blade of wind turbine should realize that effectively connection can ensure aerodynamic configuration, personnel by extension outline again
Must install from blade interior and tighten bolt, cannot assemble from outside, what is be connected by is double end reverse-flighted screw, institute
So that mechanical torque spanner can only be adopted urgent, it is impossible to using hydraulic torque wrench or stretcher.And blade interior space is very
Narrow and small, torque wrench has been difficult operating space, and design is in itself the convenience for considering emphatically to assemble, and actually limits screw rod
Size, specification and fitting limit.In actual conditions, can blade interior narrow space, personnel connect from inside into subsection blade
Socket part position is all problem, not to mention the limitation in personnel and wrench operated space；In addition, subsection blade is only epitaxy part tap
Touch, contact surface is little, cause interface pressure big, be unfavorable for the contact surface fatigue damage of blade junction；If screw rod is without simultaneously
Tightly, interface pressure is less, and screw rod needs to bear the various power such as whole bending stresses, centrifugal force, gravity under extreme case, that
The fatigue fracture risk of screw rod extremely causes anxiety.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of wind-driven generator point
Section blade, it can not only be transported using blade section, realize personnel's convenience, reliably connection segment blade, and be ensure that
The aeroperformance of two sections of blade junctions does not lose, and possesses locking, non-maintaining ability, even if running into possible failure, helpdesk
Reason is also very convenient.
In order to solve above-mentioned technical problem, the technical solution of the utility model is：A kind of wind-driven generator subsection blade, bag
Include：
At least two sections blades；
And the blade coupling assembly being arranged between adjacent two sections of blades, the blade coupling assembly include vane end faces
Abutment portion and double end reverse thread stud group, double end reverse thread stud group has multiple double end reverse thread studs；In phase
In two sections of adjacent blades, the one end of double end reverse thread stud is connected with one of blade, double end reverse thread stud
The other end is connected with another blade, the end face of the vane end faces abutment portion and the end face phase of one of blade
Support, the other end of vane end faces abutment portion offsets with the end face of another blade, and vane end faces abutting part
Subpackage wraps the middle part of double end reverse thread stud, and the outside wall surface of vane end faces abutment portion keeps with the outside wall surface of two blades
Consistent aerodynamics profile.
Further provide the attachment structure between a kind of double end reverse thread stud and two adjacent blades, the leaf
The end of piece is provided with Stud connection part；In two adjacent blades, the one end of the double end reverse thread stud with
Bolt connection piece in one of blade is connected, in the other end of the double end reverse thread stud and another blade
Bolt connection piece be connected.
Further, the Stud connection part is the bolt sleeve being embedded in blade.
Further, in two adjacent blades, the bolt connection piece in one of blade is to be embedded in blade
Bolt sleeve, the bolt connection piece in another blade is the nut being placed in blade.
Further for the independent assembling that can realize single double end reverse thread stud, it is provided with another blade
Corresponding with nut and along the axially extending mounting hole of double end reverse thread stud, the nut is placed in mounting hole.
A kind of concrete structure of vane end faces abutment portion is further provided, the vane end faces abutment portion includes method
Blue and filler layer, flange is located at the inner side of filler layer, and the reverse spiral shell of multiple double ends in double end reverse thread stud group
Line stud is located at the outside of flange, the gas that the outside wall surface of the filler layer is consistent with the outside wall surface of two adjacent blades
Body dynamics profile.
Further, it is provided with lightening hole in the flange.
Further provide the concrete structure of another vane end faces abutment portion, the vane end faces abutting part subpackage
Flange and filler layer are included, flange is located at the outside of filler layer, and the multiple double ends in double end reverse thread stud group are anti-
The inner side of flange, the gas that the outside wall surface of the flange is consistent with the outside wall surface of two adjacent blades are located to threaded stud
Body dynamics profile.
Further, the nut in the middle part of the double end reverse thread stud is hex nut or square nut.
Further, the nut in the middle part of the double end reverse thread stud sets respectively between the end face of two adjacent blades
It is equipped with cushion pad.
After employing above-mentioned technical proposal, the utility model has following beneficial effect：
1st, the flange of a vane end faces abutment portion is shared between two adjacent blades, can be farthest utilized
The contact surface of junction, increases contact surface area and is conducive to improving the fatigability of double end reverse thread stud and flange contact facings
Energy；
2nd, for the blade of interior construction inconvenience, personnel can have enough in the convenient abutting joint blade of blade exterior
Operating space, very easily give double end reverse thread stud apply moment of torsion；
3rd, when the flange in vane end faces abutment portion is located at outside, flange profile need not be strict and blade junction
Aerofoil profile can slightly be recessed a bit with type, reduce the manufacture difficulty of flange, and space is filled out using filler, foam, structure glue etc.
Fill, easy construction, shaping can guarantee that the aerofoil profile outline of junction easily and with type；And with cutting, remove, repairing type it is good
Good manufacturability, follow-up maintenance is also convenient for；The gap tamped prevents the rotation of double end reverse thread stud again, plays locking work
With.
4th, can be more convenient, reliably solve the connectivity problem of MW class subsection blade, and not affect the gas of connecting portion
Dynamic performance；
Description of the drawings
Fig. 1 is the assembling stereogram of the wind-driven generator subsection blade of the first structure of the present utility model；
Fig. 2 is the end view of the blade in Fig. 1；
Fig. 3 is the structural representation of the flange in Fig. 1；
Fig. 4 is the A-A sectional views of Fig. 2；
Fig. 5 is the assembling stereogram of the wind-driven generator subsection blade of second structure of the present utility model；
Fig. 6 is the end view of the blade in Fig. 5；
Fig. 7 is the structural representation of the flange in Fig. 5；
Fig. 8 is the B-B sectional views of Fig. 6；
Fig. 9 is the knot of the first deformation being connected between double end reverse thread stud of the present utility model and two blades
Structure schematic diagram；
Figure 10 is the partial sectional view under the vertical view state of Fig. 9；
Figure 11 is second deformation being connected between double end reverse thread stud of the present utility model and two blades
Structural representation；
Figure 12 is the partial sectional view under the vertical view state of Figure 11.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
Embodiment one
As shown in figures 1-4, a kind of wind-driven generator subsection blade, it includes：
At least two sections blades 1；
And the blade coupling assembly being arranged between adjacent two sections of blades 1, the blade coupling assembly include blade end
Face abutment portion and double end reverse thread stud group, double end reverse thread stud group has multiple double end reverse thread studs 5；
In two sections of adjacent blades 1, the one end of double end reverse thread stud 5 is connected with one of blade 1, double end reverse thread spiral shell
The other end of post 5 is connected with another blade 1, end face and one of blade 1 of the vane end faces abutment portion
End face offset, other end and the end face of another blade 1 of the vane end faces abutment portion offset, and blade end
Face abutment portion wraps the middle part of double end reverse thread stud 5, the outside wall surface of vane end faces abutment portion and two blades 1
The aerodynamics profile that outside wall surface is consistent.
The end of the blade 1 is provided with Stud connection part；In two adjacent blades 1, the double end reverse thread
The one end of stud 5 is connected with the bolt connection piece in one of blade 1, the double end reverse thread stud 5 it is another
End is connected with the bolt connection piece in another blade 1.
Stud connection part can be arranged as follows：
1st, the Stud connection part is the bolt sleeve 61 being embedded in blade 1, and the two ends of double end reverse thread stud 5 are distinguished
It is threadedly attached in corresponding bolt sleeve 61；
2nd, as shown in Fig. 9,10, in blade 1, at least one of them blade 1 adopts rear drilling technology, loads in punching side
Nut 62, in view of nut 62 typically has certain fit clearance with housing pilot hole, is more beneficial for double end reverse thread stud 5
Tighten installation, it is not necessary to during stringent synchronization twist double end reverse thread stud 5, specific structure is as follows：At adjacent two
In blade 1, the bolt connection piece in one of blade 1 is the bolt sleeve 61 being embedded in blade, in another blade 1
Bolt connection piece is the nut 62 being placed in blade 1, and one end of double end reverse thread stud 5 is threadedly attached in one of them
In bolt sleeve 61 in blade 1, the other end of double end reverse thread stud 5 passes through another blade 1 and is connected to therein
In nut 62；
3rd, as shown in Figure 11,12, it is provided with another blade 1 with the correspondence of nut 62 and along double end reverse thread spiral shell
The axially extending mounting hole 11 of post 5, the nut 62 is placed in mounting hole 11, and such to be disposed to single double end reverse
Threaded stud 5 is individually assembled, i.e., each double end reverse thread stud 5 from be installed to urgent process can be it is independent, no
Needs are synchronous with other double end reverse thread studs 5 to be installed, and not only installs more convenient, dismantles when faulty or replacing double end is reverse
Threaded stud 5 is also convenient for, and does not affect other performance.
As shown in figure 1, the vane end faces abutment portion includes flange 2 and filler layer 3, flange 2 is located at filler layer 3
Inner side, and the multiple double end reverse thread studs 5 in double end reverse thread stud group be located at flange 2 outside, it is described to fill out
Fill the aerodynamics profile that the outside wall surface of nitride layer 3 is consistent with the outside wall surface of two adjacent blades 1.
As shown in Figure 2,3, it is provided with lightening hole in the flange 2.
The nut at the middle part of the double end reverse thread stud 5 is hex nut or square nut.
The nut at the middle part of the double end reverse thread stud 5 is provided with respectively between the end face of two adjacent blades 1
Cushion pad 4.
Embodiment two
The present embodiment is essentially identical with the structure of embodiment one, except for the difference that：As shown in figure 5, the vane end faces are abutted
Part includes flange 2 and filler layer 3, and flange 2 is located at the outside of filler layer 3, and in double end reverse thread stud group
Multiple double end reverse thread studs 5 are located at the inner side of flange 2, the outer wall of the outside wall surface of the flange 2 and two adjacent blades 1
The aerodynamics profile that face is consistent.
1st, the blade 1 for more than two sections, laying is strengthened on whole profile at segmentation, with common blade root laying class
Seemingly, in bolt near zone uniform thickness laying, and to away from segmentation face direction gradually reduce, the laying that narrows transition processing；
2nd, pre-embedded bolt set 61, connects the thread rotary orientation of the double end reverse thread stud 5 of two sections of blades 1 when blade 1 is manufactured
On the contrary；
3rd, the connecting end surface of blade 1 is plane, and end face can be close to the flange face of flange 2, and the width of connecting end surface spreads
Thickness degree, can adjust as needed；
4th, preforming flange 2 (metal material or composite) is installed on wherein one section blade 1, as the end face of blade 1
Common flange 2, the thickness of flange 2 exceedes the nut thickness at the middle part of double end reverse thread stud 5；The zone line of flange 2 can be with
Various forms of lightening holes are needed out according to reality or technique；
5th, determine that segmentation connection is personnel's inside connection construction or external connection construction according to the construction space at segmentation position；
Can be with internal connection construction, the flange 2 of outer ring is used as segmentation connection principal contact surfaces (accompanying drawing 5,6,7,8), interior construction
The flange 2 of the inconvenient interior ring of use is used as segmentation connection principal contact surfaces (accompanying drawing 1,2,3,4)；
6th, subsection blade number of assembling steps：
1) two sections of blades 1 align assembly in place；
2) while and tight double end reverse thread stud 5, be tightened to the moment of torsion of regulation；
3) locking, repairing type process, the space on surface in or beyond composite filling flange surface and blade, filler is slightly higher
In surface, to polish, the scheme not limited preferentially but, first with the middle part of the fillers such as putty filling double end reverse thread stud 5
Nut bottom and flange space, then with PVC foams, structure glue, broken glass fibre filling top gap；The composite for tamping
Bolt looseness can be prevented.
4) surface polishes flat；
5) flange outer surface paint is processed；
Particular embodiments described above, the technical problem solved to the utility model, technical scheme and beneficial effect are entered
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in the utility model is limited, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (10)
1. a kind of wind-driven generator subsection blade, it is characterised in that it includes：
At least two sections blades (1)；
And the blade coupling assembly being arranged between adjacent two sections of blades (1), the blade coupling assembly include vane end faces
Abutment portion and double end reverse thread stud group, double end reverse thread stud group has multiple double end reverse thread studs (5)；
In two sections of adjacent blades (1), the one end of double end reverse thread stud (5) is connected with one of blade (1), and double end is reverse
The other end of threaded stud (5) is connected with another blade (1), the end face of the vane end faces abutment portion with wherein
The end face of one blade (1) offsets, the end face phase of the other end of the vane end faces abutment portion and another blade (1)
Support, and vane end faces abutment portion wraps the middle part of double end reverse thread stud (5), the outer wall of vane end faces abutment portion
The aerodynamics profile that face is consistent with the outside wall surface of two blades (1).
2. wind-driven generator subsection blade according to claim 1, it is characterised in that：The end of the blade (1) is arranged
There is Stud connection part；In two adjacent blades (1), the one end of the double end reverse thread stud (5) and one of them
Bolt connection piece in blade (1) is connected, the other end of the double end reverse thread stud (5) and another blade (1)
Interior bolt connection piece is connected.
3. wind-driven generator subsection blade according to claim 2, it is characterised in that：The Stud connection part is to be embedded in
Bolt sleeve (61) in blade (1).
4. wind-driven generator subsection blade according to claim 2, it is characterised in that：In two adjacent blades (1),
Bolt connection piece in one of blade (1) is the bolt sleeve (61) being embedded in blade, the spiral shell in another blade (1)
It is the nut (62) being placed in blade (1) to tether fitting.
5. wind-driven generator subsection blade according to claim 4, it is characterised in that：Arrange on another blade (1)
Have with nut (62) correspondence and along the axially extending mounting hole (11) of double end reverse thread stud (5), the nut (62)
It is placed in mounting hole (11).
6. wind-driven generator subsection blade according to claim 1, it is characterised in that：The vane end faces abutting part subpackage
Flange (2) and filler layer (3) are included, flange (2) is in the inner side of filler layer (3), and double end reverse thread stud group
Multiple double end reverse thread studs (5) positioned at the outside of flange (2), the outside wall surface and adjacent two of the filler layer (3)
The aerodynamics profile that the outside wall surface of individual blade (1) is consistent.
7. wind-driven generator subsection blade according to claim 6, it is characterised in that：It is provided with the flange (2) and subtracts
Repeated hole.
8. wind-driven generator subsection blade according to claim 1, it is characterised in that：The vane end faces abutting part subpackage
Flange (2) and filler layer (3) are included, flange (2) is in the outside of filler layer (3), and double end reverse thread stud group
Multiple double end reverse thread studs (5) positioned at the inner side of flange (2), the outside wall surface of the flange (2) and two adjacent leaves
The aerodynamics profile that the outside wall surface of piece (1) is consistent.
9. wind-driven generator subsection blade according to claim 1, it is characterised in that：The double end reverse thread stud
(5) nut in the middle part of is hex nut or square nut.
10. wind-driven generator subsection blade according to claim 1, it is characterised in that：The double end reverse thread stud
(5) nut in the middle part of is provided with cushion pad (4) between the end face of two adjacent blades (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113402.3U CN206158927U (en) | 2016-10-10 | 2016-10-10 | Aerogenerator segmentation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113402.3U CN206158927U (en) | 2016-10-10 | 2016-10-10 | Aerogenerator segmentation blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158927U true CN206158927U (en) | 2017-05-10 |
Family
ID=58653855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113402.3U Expired - Fee Related CN206158927U (en) | 2016-10-10 | 2016-10-10 | Aerogenerator segmentation blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021156533A1 (en) | 2020-02-05 | 2021-08-12 | M. Torres Diseños Industriales, S.A.U. | Process for the manufacture of a wind turbine generator blade and wind turbine generator blade obtained thereby |
-
2016
- 2016-10-10 CN CN201621113402.3U patent/CN206158927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021156533A1 (en) | 2020-02-05 | 2021-08-12 | M. Torres Diseños Industriales, S.A.U. | Process for the manufacture of a wind turbine generator blade and wind turbine generator blade obtained thereby |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 |