CN201963466U - Wind driven generator blade with blade root enhancement device - Google Patents
Wind driven generator blade with blade root enhancement device Download PDFInfo
- Publication number
- CN201963466U CN201963466U CN2010206894490U CN201020689449U CN201963466U CN 201963466 U CN201963466 U CN 201963466U CN 2010206894490 U CN2010206894490 U CN 2010206894490U CN 201020689449 U CN201020689449 U CN 201020689449U CN 201963466 U CN201963466 U CN 201963466U
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- CN
- China
- Prior art keywords
- blade
- root
- driven generator
- steel pipe
- hollow cavity
- 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
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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
Abstract
The utility model discloses a wind driven generator blade with a blade root enhancement device. The wind driven generator blade comprises a blade root, a blade body and a metal enhancement mechanism, wherein the blade body is hollow, and the metal enhancement mechanism is arranged in the blade root and the hollow cavity of the blade body and is matched with an inner-wall support of the hollow cavity. The metal enhancement mechanism comprises a steel pipe and a wing-shaped support plate fixedly connected with the steel pipe, wherein the outer edge of the wing-shaped support plate is matched with the inner-wall support of the hollow cavity, and the end of the steel pipe extends to the blade root. Due to the metal enhancement mechanism, the intensity of the blade root is enhanced, and a blade shell is supported, so that the blade is more reliable and durable in structure, and the service life of the blade is effectively prolonged.
Description
Technical field
The utility model belongs to technical field of wind power generation, is specifically related to blade of wind-driven generator.
Background technique
Blade is the important composition parts of wind-driven generator.Because operation out of doors for a long time, the unstability of wind-force makes the fatigue damage of blade very serious, and fracture usually appears in root of blade, has reduced the working life of blade.Existing root of blade is a continuous fiber shop layer, because blade bears the fatigue load up to centrifugal force load and the 10hz of 50KN in running, the stress concentration of its root is very high, the fatigue fracture of the blade of this structure is its main failure mode, so the fatigue strength of necessary reinforced blade root.
Summary of the invention
The technical problems to be solved in the utility model is: improve blade structure, prolong leaf longevity, thereby blower fan is more effectively worked.
Above-mentioned purpose is achieved through the following technical solutions: a kind of blade of wind-driven generator comprises root of blade and blade body, blade body hollow; It is characterized in that: also comprise the metal reinforcing mechanisms, be arranged in the hollow cavity of root of blade and blade body, and cooperate with the support of hollow cavity inwall.
Described metal reinforcing mechanisms comprises steel pipe and the aerofoil profile fagging of fixedlying connected with steel pipe, and aerofoil profile fagging outer rim supports with the hollow cavity inwall and cooperates, and the steel pipe end extends to root of blade.
The utility model has been strengthened the intensity of root of blade by the metal reinforcing mechanisms is set, and simultaneously blade shell is supported, and makes that the structure of blade is more reliable, durable, has prolonged the working life of blade effectively.
Description of drawings
Fig. 1 is the External view of the blade of wind-driven generator that provides of embodiment.
Fig. 2 is the perspective view of the blade of wind-driven generator that provides of embodiment.
Fig. 3 is the schematic representation of the built-in reinforcing mechanisms of blade of wind-driven generator that provides of embodiment.
Embodiment
As shown in Figure 1, the blade of wind-driven generator 100 that present embodiment provides comprises blade body 110 and root of blade 120, and blade body 110 is a shell construction, has hollow cavity.As shown in Figure 2, be enclosed with a metal reinforcing mechanisms in blade body and the root of blade, this metal reinforcing mechanisms comprises seamless steel pipe 130, the first aerofoil profile fagging 140, the second aerofoil profile fagging 150 and wheel hub plate bindiny mechanism 160 (in conjunction with Fig. 3).The outer rim of the first aerofoil profile fagging 140 and the second aerofoil profile fagging 150 is used for supporting with the hollow cavity inwall and cooperates, so the shape of two aerofoil profile faggings and size should be answered the hollow cavity shape of blade body 110 and be arranged on the interior position of hollow cavity and determine.The first aerofoil profile fagging 140 and the second aerofoil profile fagging 150 can be fixedly connected on the seamless steel pipe 130 by modes such as welding or riveted joints, and seamless steel pipe 130 ends extend to root of blade.Seamless steel pipe 130 ends also are provided with or connecting wheel hub bindiny mechanism 160, are used for blade 100 is arranged on the wheel hub plate of wind-driven generator.
The utility model has carried out strengthening design to blade interior, and by metal aerofoil profile fagging 140,150 and seamless steel pipe 130 reinforcing mechanisms that is formed by connecting, integral body is wrapped in blade interior.Metal aerofoil profile fagging matches with the blade internal surface, plays a supporting role; Seamless steel pipe 130 extends to root increases root intensity greatly.Structural design of the present utility model can make the stress of leaf root part be distributed on the blade, has greatly reduced the stress concentration and the fatigue strength of blade root portion, can not influence blade tip toughness again simultaneously, and prolonged more than 10 times the working life of blade.
Claims (3)
1. the blade of wind-driven generator with blade root intensifier comprises root of blade and blade body, blade body hollow; It is characterized in that: also comprise the metal reinforcing mechanisms, be arranged in the hollow cavity of root of blade and blade body, and cooperate with the support of hollow cavity inwall.
2. the blade of wind-driven generator with blade root intensifier according to claim 1, it is characterized in that: described metal reinforcing mechanisms comprises steel pipe and the aerofoil profile fagging of fixedlying connected with steel pipe, aerofoil profile fagging outer rim supports with the hollow cavity inwall and cooperates, and the steel pipe end extends to root of blade.
3. the blade of wind-driven generator with blade root intensifier according to claim 2 is characterized in that, described aerofoil profile fagging comprises at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206894490U CN201963466U (en) | 2010-12-30 | 2010-12-30 | Wind driven generator blade with blade root enhancement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206894490U CN201963466U (en) | 2010-12-30 | 2010-12-30 | Wind driven generator blade with blade root enhancement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963466U true CN201963466U (en) | 2011-09-07 |
Family
ID=44526002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206894490U Expired - Fee Related CN201963466U (en) | 2010-12-30 | 2010-12-30 | Wind driven generator blade with blade root enhancement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081041A (en) * | 2012-01-20 | 2014-10-01 | 安德里茨水电有限公司 | Rotor blade for a turbine |
-
2010
- 2010-12-30 CN CN2010206894490U patent/CN201963466U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081041A (en) * | 2012-01-20 | 2014-10-01 | 安德里茨水电有限公司 | Rotor blade for a turbine |
| CN104081041B (en) * | 2012-01-20 | 2016-10-12 | 安德里茨水电有限公司 | Rotor blade and turbine for turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20171230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |