CN207777092U - Blade and wind power generating set including the blade - Google Patents
Blade and wind power generating set including the blade Download PDFInfo
- Publication number
- CN207777092U CN207777092U CN201721815139.7U CN201721815139U CN207777092U CN 207777092 U CN207777092 U CN 207777092U CN 201721815139 U CN201721815139 U CN 201721815139U CN 207777092 U CN207777092 U CN 207777092U
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- China
- Prior art keywords
- blade
- splicing regions
- splice sections
- protrusion part
- splicing
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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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- Wind Motors (AREA)
Abstract
The utility model provides a kind of blade and the wind power generating set including the blade, and the blade includes at least two splice sections spliced each other along the length direction of blade, and two splice sections adjacent to each other include：First splice sections include the first splicing regions with the first pontes；Second splice sections, include second splicing regions adjacent with the first splicing regions, second splicing regions include the second connecting portion point that shape and position match with the first pontes, the first pontes includes towards second connecting portion point multiple convex blocks outstanding, second connecting portion point is multiple recessed in the second splicing regions including being formed in, each recessed shape big with the small tripe of mouth, to which the first splice sections and the second splice sections are fixed by convex block with recessed being engaged in the longitudinal direction.Blade according to the present utility model reduces transportation cost, and do not use metal connecting piece, can be effectively reduced leaf weight, and be effectively reduced curvature effect convenient for splitting and assembling.
Description
Technical field
The utility model is related to wind power generation field, more particularly to a kind of blade with splicing construction and including the blade
Wind power generating set.
Background technology
Blade is one of critical component of wind power generating set, in order to fully utilize wind energy to realize higher power generation
Efficiency, the length of blade are done increasingly longer.However, blade is longer, difficulty of processing is bigger, technique is more complicated, it is difficult to ensure leaf
Tablet quality.Moreover, since current blade is integrally manufactured, transports and installed mostly, blade is longer, and transportation cost can also be got over
Height, it could even be possible to can not be transported in land.
In order to solve this problem, blade is divided into two sections or more by many vane manufacturing producers along its length during fabrication
Multistage, and two sections or more sections are stitched together after transporting to destination.
But in the prior art, other component is typically set between adjacent blade sections (for example, being embedded in blade
In component) and pass through the rigid connector of screw, bolt etc. realize blade splicing.
Such connection type leads to that there are following：1, due to being provided with metal component on blade, cause to keep away
Thunder effect is poor；2, due to meet enough bonding strength and rigidity requirement, it is necessary to by a large amount of metal component, lead to leaf
Piece obviously increases weight, and improves the load of host；Even if being 3, to ensure that bonding strength and rigidity requirement are provided with a large amount of metal structure
Part, it is also possible to which existing to be unevenly distributed leads between adjacent blade segment that there are rigidity mutation.
Utility model content
To solve the above problems, the utility model provides a kind of blade and the wind power generating set including the blade, the leaf
Piece can be convenient for splitting and assembling, and to reduce transportation cost, and the blade does not use metal connecting piece, so as to effective
Ground reduces leaf weight, and is effectively prevented from stress concentration.
One side according to the present utility model provides a kind of blade, the blade may include along blade length direction each other
At least two splice sections of splicing, two splice sections adjacent to each other include at least two splice sections：First splice sections,
Including the first splicing regions, the first splicing regions include the first pontes；Second splice sections, including with the first splicing regions phase
The second adjacent splicing regions, the second splicing regions include the second connecting portion that shape and position match with the first pontes
Point, wherein the first pontes includes towards second connecting portion point multiple convex blocks outstanding, and second connecting portion point includes being formed in
It is multiple recessed in second splicing regions, it is multiple it is recessed in be at least partially recessed into the big shape of the small tripe of mouth, to first
Splice sections and the second splice sections are fixed to one another by multiple convex blocks with multiple recessed are engaged each other in the longitudinal direction.
Multiple convex each convex blocks in the block may include that first from the first splicing regions towards the extension of the second splicing regions is convex
The the second protrusion part for going out part and extending from the first protrusion part further towards the second splicing regions, wherein in blade
In chordwise direction, at least part of length of the first protrusion part is less than at least part of length of the second protrusion part.
First protrusion part can be rectangular shape, and the second protrusion is divided into circular shape, trapezoidal shape, rectangular shape or more
Side shape shape.
Can be round-corner transition between first protrusion part and the second protrusion point, and first protrudes part and the second protrusion
Angle on part can be fillet.
In addition the outside of first splicing regions and the second splicing regions can be pasted with reinforcing chip so that the first splicing regions and
Second splicing regions are flushed with other regions of the first splice sections and the second splice sections.
The first pontes and second connecting portion point may be formed on blade girder region.
Another aspect according to the present utility model provides a kind of wind power generating set, the wind power generating set may include as
The upper blade.
Exemplary embodiment according to the present utility model, by making multiple recessed shapes for being arranged to " the small tripe of mouth is big ", nothing
Need additional fastening member that can limit the displacement between two splice sections.
Moreover, because between two splice sections can direct splicing be not necessarily to additional transition piece, to reduce in the prior art
Due to being bolted etc. caused by fastening members connection type significantly addition bend effect；The material properties one of two splice sections
It causes, is convenient for the gentle transition of the rigidity of structure, advantageously reduce stress concentration caused by being mutated due to rigidity.In addition, due to being not necessarily to
Metal connecting elements is set, therefore can realize preferably lightning-arrest effect, and can effectively reduce the overall weight of blade, from
And reduce the load of host.
In addition, splicing regions use rounded transitional structure, the stress concentration of coupling part can be reduced, splicing regions are avoided
Stress is concentrated and causes local stress excessive and then lead to structural failure.
Description of the drawings
Fig. 1 is the partial structural diagram of the blade of embodiment according to the present utility model.
Fig. 2 is the partial schematic diagram of the first pontes according to the present utility model.
Fig. 3 is the structural schematic diagram of the reinforcing chip of embodiment according to the present utility model.
Reference sign：
The first splice sections of 1-；The second splice sections of 2-；3- the first pontes；3a- convex blocks；4- second connecting portions point；4a- is recessed
Enter；The first splicing regions of 5-；The second splicing regions of 6-；7,8- reinforcing chips；10- blades skin areas；20- blade girders region；
31- first protrudes part；32- second protrudes part；The first concave portions of 41-；The second concave portions of 42-.
Specific implementation mode
The embodiments of the present invention are specifically described below in conjunction with attached drawing.
Fig. 1 shows the partial structural diagram of the blade according to the present embodiment.Blade according to the present utility model can quilt
It is divided at least two splice sections, the splicing construction between wherein two sections and this two sections of splicing blade is shown in Fig. 1, is omitted
Splicing construction between this two sections of splice sections adjacent with other.It will be appreciated that blade is not limited to two shown in Fig. 1
A splice sections, and in addition to the splice sections comprising leaf root part and tip segment, each splice sections are on the length direction of blade
Both ends be respectively formed with the splicing regions of preset width, to carry out splicing assembling with adjacent splice sections.
It is described in detail referring to the connection structure between Fig. 1 pairs of two splice sections.
Two splice sections adjacent to each other may include：First splice sections 1, including the first splicing regions 5, the first splicing regions
5 include the first pontes 3；Second splice sections 2 include second splicing regions 6 adjacent with the first splicing regions 5, and second spells
It includes the second connecting portion point 4 that shape and position match with the first pontes 3 to connect region 6.In addition, the first pontes 3
It may include that, towards 4 multiple convex block 3a outstanding of second connecting portion point, second connecting portion point 4 may include being formed in the second splicing regions
The 4a that is at least partially recessed into multiple recessed 4a in 6, multiple recessed 4a can be with the shape of " the small tripe of mouth is big ", to which first spells
Connect section 1 and the second splice sections 2 can by multiple convex block 3a are engaged each other with multiple recessed 4a on the length direction of blade that
This is fixed.That is, after two adjacent splice sections are spliced by the occlusion of multiple convex block 3a and multiple recessed 4a, without borrowing
Help any other component that can limit the displacement of the two in the longitudinal direction.
As depicted in figs. 1 and 2, each convex block 3a includes extended from the first splicing regions 5 towards the second splicing regions 6
One protrusion part 31 and the second protrusion part 32 extended from the first protrusion part 31 further towards the second splicing regions 6.Such as
Shown in figure, in the chordwise direction of blade, at least part of length of the first protrusion part 31 is less than the second protrusion part 32
At least part of length, it is each recessed in this way, since each recessed 4a has shape identical with each convex block 3a
4a with the first corresponding first concave portion 41 in protrusion part 31 and corresponding with the second protrusion part 32 second recessed
Part 42 has the shape of above-mentioned " mouth (that is, first concave portion 41) small tripe (that is, second concave portion 42) is big ".
Embodiment according to the present utility model is rectangle, the second protrusion part shown in the drawings of the first protrusion part 31
32 be circle, and first protrudes part 31 the case where the length on tangential is less than the diameter of the second protrusion part 32, but root
The shape that part 32 is protruded according to the first protrusion part 31 and second of the utility model is without being limited thereto, for example, the first protrusion part
31 can be trapezoidal shape, second protrusion part 32 can be that trapezoidal shape, rectangular shape or polygonal shape etc. are variously-shaped.First
The shape that part 32 is protruded in protrusion part 31 and second is not particularly limited, as long as making corresponding first concave portion, 41 He
Second concave portion 42 has the shape of " the small tripe of mouth is big ".
In addition, to avoid causing to generate stress concentration in splicing regions 5 and 6 due to this structure, first connecting portion can be made
Points 3 and 4 shape of second connecting portion point itself and it is all made of round-corner transition each other.That is, shown in Fig. 2 first
The four corners point for protruding part 31 can be fillet.In addition, if the second protrusion part 32 is the other shapes such as rectangle, second
Four angles of protrusion part 32 are alternatively fillet.Similarly, fillet can also be used in other shapes, will not enumerate herein.
The first splice sections 1 and the second splice sections 2 of embodiment according to the present utility model be engaged each other after in length direction
On can be fixed to one another, but in order to further ensure that stable connection between the two, bonded adhesives etc. can also be used and be bonded the two.
The first splice sections 1 and second are made to splice by the occlusion and bonding of the first pontes 3 and second connecting portion point 4
It, can be in the first splicing regions 5 of the first splice sections 1 in order to further increase bonding strength between the two after section 2 is fixed to one another
Reinforcing chip is set in the second splicing regions 6 of the second splice sections 2.
The shape of reinforcing chip can be as shown in figure 3, for example, reinforcing chip 7 can be with the pressure faces of the first splicing regions 5 (for example, figure
Upper surface shown in 1) shape it is corresponding, the shape of reinforcing chip 8 can be with the suction surfaces of the first splicing regions 5 (for example, Fig. 1
Shown in lower surface) shape it is corresponding.Equally, the second splicing regions 6 can also have and the reinforcement in the first splicing regions 5
Piece 7 and 8 identical reinforcing chips.By the way that reinforcing chip is arranged, the connection that can enhance between the first splice sections 1 and the second splice sections 2 is strong
Degree.
However, the utility model is without being limited thereto, for example, the suction of adjacent the first splicing regions 5 and the second splicing regions 6
Face can share a reinforcing chip, their pressure face can also share a reinforcing chip.
In addition, reinforcing chip can also be adhered to the first splicing regions 5 and the second splicing regions 6 by bonded adhesives etc..
To ensure the aeroperformance of blade, the blade after the completion of splicing should have smooth surface therefore can make the first spelling
Connecing has step between region 5 and the second splicing regions 6 and the first splice sections 1 and other regions of the second splice sections 2, thus
It is pneumatic to meet so that being flushed between the first splicing regions 5 and the second splicing regions 6 and other described regions after bonding and reinforcing piece
Performance requirement.
In addition, reinforcing chip also ensures the sealing of blade, to prevent dust storm, rainwater etc. from entering wherein.Dust storm invades blade
Erosion is serious, especially may then lead to blade inherent characteristic into the dust storm long-term accumulated of blade to the erosion of coupling part
Change.Water enters blade as conductor, is unfavorable for the lightning-arrest of blade, and meeting lightning stroke can make its Transient transformation at vapor, lead to leaf
Piece inner chamber gas increased pressure, and then blade construction may be caused to damage.Therefore, by be arranged reinforcing chip, make blade interior with
Outside isolation, can prevent the change of blade inherent characteristic and the damage of structure, so that it is guaranteed that the service life of blade.
In addition, since the blade other than blade girder region 20 that the thickness in blade girder region 20 is thicker than blade covers
The thickness in dermatotome domain 10, therefore above-mentioned the first pontes 3 and second connecting portion point 4 may be formed on blade girder region 20,
To ensure bonding strength and blade strength.
As described above, embodiment according to the present utility model, by making multiple recessed shapes for being arranged to " the small tripe of mouth is big ",
The displacement between two splice sections on the length direction of blade can be limited without additional fastening member.
Moreover, because between two splice sections can direct splicing be not necessarily to additional transition piece, to reduce in the prior art
Due to being bolted etc. caused by fastening members connection type significantly addition bend effect；The material properties one of two splice sections
It causes, is convenient for the gentle transition of the rigidity of structure, advantageously reduce stress concentration caused by being mutated due to rigidity.In addition, due to being not necessarily to
Metal connecting elements is set, therefore can realize preferably lightning-arrest effect, and can effectively reduce the overall weight of blade, from
And reduce the load of host.
In addition, splicing regions use rounded transitional structure, the stress concentration of coupling part can be reduced, splicing regions are avoided
Stress is concentrated and causes local stress excessive and then lead to structural failure.
Although the exemplary embodiment of the utility model is described in detail above, those skilled in the art should manage
Solution can make various modifications in the case where not departing from the principles of the present invention and spirit to the embodiments of the present invention
And deformation.It is understood that in the opinion of those skilled in the art, these modification and variation will fall into claim and be limited
The scope of the utility model in.
Claims (7)
1. a kind of blade, which is characterized in that the blade includes at least two splicings spliced each other along the length direction of blade
Section, two splice sections adjacent to each other include at least two splice sections：
First splice sections (1), including the first splicing regions (5), first splicing regions (5) include the first pontes (3)；
Second splice sections (2) include second splicing regions (6) adjacent with first splicing regions (5), second splicing
Region (6) includes the second connecting portion point (4) that shape and position match with the first pontes (3),
Wherein, the first pontes (3) includes towards the second connecting portion point (4) multiple convex blocks (3a) outstanding, institute
It includes multiple recessed (4a) being formed in second splicing regions (6) to state second connecting portion point (4), wherein the multiple
Being at least partially recessed into recessed (4a) (4a) is with the big shape of the small tripe of mouth, to first splice sections (1) and described the
Two splice sections (2) by the multiple convex block (3a) is engaged each other with the multiple recessed (4a) in the length direction that
This is fixed.
2. blade as described in claim 1, which is characterized in that each convex block (3a) in the multiple convex block (3a) include from
The first protrusion part (31) that first splicing regions (5) extend towards second splicing regions (6) and from described first
The second protrusion part (32) that protrusion part (31) extends further towards second splicing regions (6),
Wherein, in the chordwise direction of the blade, at least part of length of the first protrusion part (31) is less than institute
State at least part of length of the second protrusion part (32).
3. blade as claimed in claim 2, which is characterized in that the first protrusion part (31) is rectangular shape, described the
Two protrusion parts (32) are circular shape or polygonal shape.
4. blade as claimed in claim 3, which is characterized in that the first protrusion part (31) and second protrusion part
(32) it is round-corner transition between, and the angle on the first protrusion part (31) and the second protrusion part (32) is circle
Angle.
5. blade as described in claim 1, which is characterized in that first splicing regions (5) and second splicing regions
(6) in addition outside is pasted with reinforcing chip, so that first splicing regions (5) and second splicing regions (6) and first
Other regions of splice sections (1) and the second splice sections (2) flush.
6. the blade as described in claim 1-5 any one, which is characterized in that the first pontes (3) and described
Two coupling parts (4) are formed on blade girder region (20).
7. a kind of wind power generating set, which is characterized in that the wind power generating set includes as described in claim any one of 1-6
Blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721815139.7U CN207777092U (en) | 2017-12-21 | 2017-12-21 | Blade and wind power generating set including the blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721815139.7U CN207777092U (en) | 2017-12-21 | 2017-12-21 | Blade and wind power generating set including the blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777092U true CN207777092U (en) | 2018-08-28 |
Family
ID=63227491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721815139.7U Active CN207777092U (en) | 2017-12-21 | 2017-12-21 | Blade and wind power generating set including the blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533315A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of composite material blade of helicopter foam fills out cored structure |
-
2017
- 2017-12-21 CN CN201721815139.7U patent/CN207777092U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533315A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of composite material blade of helicopter foam fills out cored structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |