CN108869165A - Fan blade and the method for assembling it - Google Patents
Fan blade and the method for assembling it Download PDFInfo
- Publication number
- CN108869165A CN108869165A CN201710320597.1A CN201710320597A CN108869165A CN 108869165 A CN108869165 A CN 108869165A CN 201710320597 A CN201710320597 A CN 201710320597A CN 108869165 A CN108869165 A CN 108869165A
- Authority
- CN
- China
- Prior art keywords
- blade
- root baffle
- blade root
- snap
- gauge
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004588 polyurethane sealant Substances 0.000 claims description 14
- 238000007747 plating Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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
-
- 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
Abstract
The invention proposes a kind of fan blades and the method for assembling it, the fan blade includes blade body and the blade root baffle that is arranged in the inner cavity of blade body, wherein, elastic component is set between the periphery wall of blade root baffle and the inner wall of blade body, the fan blade can effectively prevent due to deformable blade and make blade root baffle bear shear stress and lead to the problem of cracking, the safety for improving blade root baffle which thereby enhances the service life of fan blade.
Description
Technical field
The present invention relates to technical field of wind power generation, and in particular to a kind of fan blade and the method for assembling it.
Background technique
Generated environmental problem is applied to solve fossil fuel, the environment amenable new energy of mankind's Devoting Major Efforts To Developing is replaced
For fossil fuel, wind energy is the new energy of one of Devoting Major Efforts To Developing, and the major way currently with wind energy is wind-power electricity generation.
As wind-power electricity generation wind catcher, blade of wind-driven generator is cavity structure, has a sealing whole at blade root position
The blade root baffle of a blade of wind-driven generator.In wind power generating set operational process, usually there is asking for blade root baffle cracking
Topic, seriously affects the safe operation of wind power generating set.
It is then desired to which a kind of fan blade solves the problems, such as that blade root baffle cracks with the method for assembling it.
Summary of the invention
For some or all of of the above-mentioned technical problem in the presence of the prior art, the invention proposes a kind of blowers
Blade and the method for assembling it.Elastic component is set between the blade body and blade root baffle of the fan blade, rather than existing skill
Thus the rigid connection used in art effectively prevent making blade root baffle bear shear stress and cause out due to deformable blade
The problem of splitting.
According to the first aspect of the invention, a kind of fan blade is proposed comprising：
Blade body,
Blade root baffle in the inner cavity of blade body is set,
Wherein, elastic component is set between the periphery wall of blade root baffle and the inner wall of blade body.
In one embodiment, the overall diameter of blade root baffle is 50-60 millimeters smaller than the interior diameter of blade body.
In one embodiment, in the inner cavity of blade body, in the first side of elastic component, setting is for limiting blade root gear
The second snap-gauge for limiting blade root baffle is arranged in second side of elastic component in first snap-gauge of plate.
In one embodiment, elastic component by the polyurethane sealant that is arranged between blade root baffle and blade body and shape
At.
In one embodiment, elastic component has the bottom wall being arranged between blade body and the periphery wall of blade root baffle,
And the side wall extended radially inwardly along blade root baffle is fixedly connected with bottom wall.
In one embodiment, side wall is with the radial dimension of blade root baffle institute overlap and the diameter ratio of blade root baffle
0.05-0.15。
In one embodiment, side wall is configured to the corrugated plating that circumferentially wave crest and trough are arranged alternately.
In one embodiment, the filling polyurethane sealant between the first snap-gauge and blade root baffle, and/or in the second card
Filling polyurethane sealant between plate and blade root baffle.
In one embodiment, in filling polyurethane sealant, injection pressure is 1-1.5 megapascal.
According to the second aspect of the invention, a kind of method for assembling above-mentioned fan blade is provided, blade root baffle passes through circumferential direction
Multiple epoxide-resin glue cured blocks at interval are positioned.
Compared with the prior art, the advantages of the present invention are as follows the periphery walls and blade root baffle of the blade body of fan blade
Inner wall between elastic component is set, avoid in the prior art using rigid connection, thus effectively prevent making due to deformable blade
The problem of blade root baffle bears shear stress and leads to cracking is obtained, the safety of blade root baffle is improved, which thereby enhances blower
The service life of blade.
Detailed description of the invention
The preferred embodiment of the present invention is described in detail below in conjunction with attached drawing, in figure：
Fig. 1 shows fan blade according to an embodiment of the invention；
Fig. 2 is enlarged drawing at the A from Fig. 1；
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be further described.
Fig. 1 shows fan blade 100 according to the present invention.As shown in Figure 1, fan blade 100 includes 1 He of blade body
Blade root baffle 2.Wherein, blade root baffle 2 is arranged in the cavity of blade body 1, with the blade root for blocking blade body 1
Opening.Elastic component 3 is set between the periphery wall of blade root baffle 2 and the inner wall of blade body 1, in blade body 1 and blade root
Buffering is set between baffle 2, avoids or reduces due to the deformation of blade body 1 and blade root baffle 2 is made to bear bigger cut
Shear force, to improve the safety in utilization of fan blade 100.
The overall diameter of blade root baffle 2 is 50-60 millimeters smaller than the interior diameter of blade body 1, for example, 55 millimeters small.Pass through this
Kind setting can be arranged between blade root baffle 2 and blade body 1 has certain thickness elastic component 3, to be able to satisfy design
Purpose.
First snap-gauge 4 and the second snap-gauge 5 are set in the axial sides of blade root baffle 2, with the position for limiting blade root baffle 2
It sets, increases its stability.Wherein, the first side of elastic component 3, that is, the blade tip close to blade body 1 is arranged in the first snap-gauge 4
Side, and second side of elastic component 3, that is, the side of the blade root close to blade body 1 is arranged in the second snap-gauge 5.It is preferred that
Ground, the first snap-gauge 4 and the second snap-gauge 5 be configured to ring-type, and its outer wall circular diameter size is than the blade body 1 of present position
Interior diameter is 18-22 millimeters small, for example, 20 millimeters small.It is, having between the outer wall and blade body 1 of the first snap-gauge 4 big
About 10 millimeters of gap.Certainly, also with about 10 millimeters of gap between the outer wall and blade body 1 of the second snap-gauge 5.When
So, while the first snap-gauge 4 is configured to above structure, for the ease of installation, the second snap-gauge 5 may be configured to other structures
Form.For example, the second snap-gauge 5 is configured to " L " type plate structure, long side is radially extended along blade root baffle 2, and and blade root
The setting of 2 relative type motor of baffle, short side extend to the inner wall along blade body 1 to blade root direction.And it is possible in blade root baffle
Multiple second snap-gauges 5 are arranged in 2 circumferentially-spaced formula.By this set, the own dimensions of the second snap-gauge 5 can do opposite
It is smaller, thus, it is fixed and positioned relatively more flexible.
In one embodiment, elastic component 3 is formed by polyurethane sealant.It is, in 2 He of blade root baffle of having good positioning
Behind position between blade body 1, polyurethane sealant is set therebetween, the two is bonded together.Due to poly- ammonia
There is excellent elasticity after ester sealing glue solidifying, play the role of lowering shear stress between blade root baffle 2 and blade body 1.
In another embodiment, elastic component 3 is configured to flexible annular shell-like.Preferably, the elastic component 3 is by silicon rubber system
At.Specifically, elastic component 3 includes bottom wall 31 and two sidewalls 32.Wherein, side wall 32 is fixed on bottom wall 31, and along diameter
To extending internally, to be coated on the excircle of blade root baffle 2.Preferably, side wall 32 and 2 overlaps of blade root baffle
Radial dimension and the diameter ratio of blade root baffle 2 are 0.05-0.15.It can guarantee by this set and block in blade root plate washer 2 and first
It is provided with elastic component between plate 4 and the second snap-gauge 5, to achieve the effect that buffering.It is further preferred that side wall 32 is configured to
Corrugated plating, and the wave crest of the corrugated plating and trough are alternately distributed along the circumferential direction of side wall 32.This setting is utilized corrugated plating and holds
The advantages that loading capability is high increases the ability of the flexible deformation between blade root plate washer 2 and the first snap-gauge 4 and the second snap-gauge 5, thus
Ensure that blade root plate washer 2 using safe.
Filling polyurethane sealant in space between the first snap-gauge 4 and blade root baffle 2.Meanwhile in 5 He of the second snap-gauge
Also filling polyurethane sealant between blade root baffle 2.On the one hand this setup increases the first snap-gauge 4 and the second snap-gauge 5
With the cohesive force between blade root baffle 2, the stability of each component is improved, on the other hand, is had after the polyurethane seal adhesive curing
There is extraordinary elasticity, further improves the buffer capacity between blade root baffle 2 and the first snap-gauge 4 and the second snap-gauge 5.
Preferably, when to filling polyurethane sealant between the first snap-gauge 4 and the second snap-gauge 5 and blade root baffle 2,
Injection pressure is 1-1.5 megapascal, for example, 1.3 megapascal.Perfusion effect can be improved in this way.Especially in side wall 32
Under the premise of corrugated plating, polyurethane sealant is pumped into side wall 32 and the first snap-gauge 4 and blade root baffle 2 and side wall 32 and
In gap between two snap-gauges 5 and blade root baffle 2, the cohesive force of adjacent component is further increased, to increase blower leaf
The stability of piece 100.
The method that group leader's fan blade 100 is described in detail below according to Fig. 1 to 2.
Firstly, the first snap-gauge 4 of installation.Determine installation site of first snap-gauge 4 in the inner cavity of blade body 1.This can be with
It is obtained on the basis of the root end face by blade body 1.The first snap-gauge 4 is padded using epoxide-resin glue cured block, so that
First snap-gauge 4 and blade body 1 are concentric.Epoxy resin gluing knot is filled between blade body 1 and the first snap-gauge 4.It uses
Glass-fiber-fabric 6 fixes the inner wall of the both sides of the face and blade body 1 of the first snap-gauge 4.
Then, blade root baffle 2 is installed.Its installation site is determined referring to the first snap-gauge 4.It should be noted that if leaf
Root baffle 2 is bonded on blade body 1 by polyurethane sealant, and epoxy glue cured block defined position also can be used,
Its bond operation is also referred to the first snap-gauge 4.If the elastic component 3 of shell-like is provided on the outer wall of blade root baffle 2, in determination
After installation site, elastic component 3 is socketed in blade root baffle 2 and is placed into installation site, at this time the periphery wall and leaf of elastic component 3
The inner wall of piece main body 1 abuts.
Finally, the second snap-gauge 5 of installation.In installation process, only pasting glass-fiber-fabric 6 in the side hand away from blade root baffle 2 will
Second snap-gauge 5 and blade body 1 are fixed.Remaining is same or like with the first snap-gauge 4 of installation, and details are not described herein.
It should be noted that the installation process of the first snap-gauge 4 and the second snap-gauge 5 is described above, blade root gear only it is expected
Plate 2 has better mounting stability.But in engineering allowed band, the first snap-gauge of installation 4 and the second card can also not had to
Plate 5.
In the application, for " axial direction " and " radial direction " using the installation site of blade root baffle 2 as reference.
The above is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, any this field
Technical staff in technical scope disclosed by the invention, can be easy to carry out and be altered or varied, and this be altered or varied all
It is covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection scope of claims
It is quasi-.
Claims (10)
1. a kind of fan blade, which is characterized in that including：
Blade body,
Blade root baffle in the inner cavity of the blade body is set,
Wherein, elastic component is set between the periphery wall of the blade root baffle and the inner wall of the blade body.
2. fan blade according to claim 1, which is characterized in that the overall diameter of the blade root baffle is than the blade master
The interior diameter of body is 50-60 millimeters small.
3. fan blade according to claim 1 or 2, which is characterized in that in the inner cavity of the blade body, described
The first snap-gauge for limiting the blade root baffle is arranged in first side of elastic component, is used in second side setting of the elastic component
Limit the second snap-gauge of the blade root baffle.
4. according to claim 1 to fan blade described in any one of 3, which is characterized in that the elastic component is by being arranged in
It states the polyurethane sealant between blade root baffle and the blade body and is formed.
5. according to claim 1 to fan blade described in any one of 3, which is characterized in that there is the elastic component setting to exist
Bottom wall between the blade body and the periphery wall of the blade root baffle, and be fixedly connected with the bottom wall along the leaf
The side wall that root baffle extends radially inwardly.
6. fan blade according to claim 5, which is characterized in that the side wall and blade root baffle institute overlap
Radial dimension and the blade root baffle diameter ratio be 0.05-0.15.
7. fan blade according to claim 5 or 6, which is characterized in that the side wall be configured to circumferentially wave crest and
The corrugated plating that trough is arranged alternately.
8. the fan blade according to any one of claim 3 to 7, which is characterized in that in first snap-gauge and described
Filling polyurethane sealant between blade root baffle, and/or the filling polyurethane between second snap-gauge and the blade root baffle
Sealant.
9. fan blade according to claim 8, which is characterized in that in filling polyurethane sealant, injection pressure is
1-1.5 megapascal.
10. a kind of assembling is according to claim 1 to the method for fan blade described in any one of 9, which is characterized in that the blade root
Baffle is positioned by circumferentially spaced multiple epoxide-resin glue cured blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320597.1A CN108869165B (en) | 2017-05-09 | 2017-05-09 | Fan blade and method of assembling the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320597.1A CN108869165B (en) | 2017-05-09 | 2017-05-09 | Fan blade and method of assembling the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869165A true CN108869165A (en) | 2018-11-23 |
| CN108869165B CN108869165B (en) | 2020-01-14 |
Family
ID=64287009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710320597.1A Active CN108869165B (en) | 2017-05-09 | 2017-05-09 | Fan blade and method of assembling the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869165B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425355A (en) * | 2020-04-02 | 2020-07-17 | 连云港中复连众复合材料集团有限公司 | Assembling method of novel breathing port of megawatt wind driven generator blade |
| CN113074083A (en) * | 2021-04-22 | 2021-07-06 | 北京国电思达科技有限公司 | Blade root supporting structure and installation method thereof |
| CN113103214A (en) * | 2021-04-09 | 2021-07-13 | 株洲时代新材料科技股份有限公司 | Wind power blade root baffle installation equipment and installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797644A (en) * | 2012-08-22 | 2012-11-28 | 天津东汽风电叶片工程有限公司 | Blade root baffle plate and manufacturing method thereof, die special for clapboard and die special for manhole plate |
| CN104819105A (en) * | 2015-04-16 | 2015-08-05 | 北京金风科创风电设备有限公司 | Root baffle structure of fan blade and mounting method thereof |
| CN205877432U (en) * | 2016-07-04 | 2017-01-11 | 尹晓普 | A vertical pipeline gallows |
| CN206957872U (en) * | 2017-03-21 | 2018-02-02 | 中材科技风电叶片股份有限公司 | Blade root baffle and the attachment structure of blade root |
-
2017
- 2017-05-09 CN CN201710320597.1A patent/CN108869165B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797644A (en) * | 2012-08-22 | 2012-11-28 | 天津东汽风电叶片工程有限公司 | Blade root baffle plate and manufacturing method thereof, die special for clapboard and die special for manhole plate |
| CN104819105A (en) * | 2015-04-16 | 2015-08-05 | 北京金风科创风电设备有限公司 | Root baffle structure of fan blade and mounting method thereof |
| CN205877432U (en) * | 2016-07-04 | 2017-01-11 | 尹晓普 | A vertical pipeline gallows |
| CN206957872U (en) * | 2017-03-21 | 2018-02-02 | 中材科技风电叶片股份有限公司 | Blade root baffle and the attachment structure of blade root |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425355A (en) * | 2020-04-02 | 2020-07-17 | 连云港中复连众复合材料集团有限公司 | Assembling method of novel breathing port of megawatt wind driven generator blade |
| CN113103214A (en) * | 2021-04-09 | 2021-07-13 | 株洲时代新材料科技股份有限公司 | Wind power blade root baffle installation equipment and installation method |
| CN113074083A (en) * | 2021-04-22 | 2021-07-06 | 北京国电思达科技有限公司 | Blade root supporting structure and installation method thereof |
| CN113074083B (en) * | 2021-04-22 | 2024-01-12 | 北京国电思达科技有限公司 | Blade root supporting structure and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108869165B (en) | 2020-01-14 |
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Effective date of registration: 20240110 Address after: 412007 Haitian Road, Tianyuan District, Zhuzhou, Hunan Province, No. 18 Patentee after: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: National University of Defense Technology Address before: 412007 Haitian Road, Tianyuan District, Zhuzhou, Hunan Province, No. 18 Patentee before: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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