CN109931213A - Blade tiltable wind turbines rotor - Google Patents
Blade tiltable wind turbines rotor Download PDFInfo
- Publication number
- CN109931213A CN109931213A CN201910309288.3A CN201910309288A CN109931213A CN 109931213 A CN109931213 A CN 109931213A CN 201910309288 A CN201910309288 A CN 201910309288A CN 109931213 A CN109931213 A CN 109931213A
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- CN
- China
- Prior art keywords
- wind
- blade
- tension spring
- speed
- revolving speed
- 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.)
- Pending
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- 230000000717 retained effect Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
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- Wind Motors (AREA)
Abstract
A kind of blade tiltable wind turbines rotor can plunder the size of wind area by change to adjust revolving speed, and wheel hub is connected with each blade by swivel pin, there is tension spring bar below blade, has tension spring to be connected between each tension spring bar.Wind hour, the wind area of plunderring of wind wheel is in maximum rating, and revolving speed is improved as wind speed increases, when wind speed is more than rated wind speed, blade can be tilted down the wind, the reduction of wind area is plunderred, revolving speed no longer improves, and at this moment wind-force reduces, the increase of wind area is plunderred in blade pitch angle reduction, revolving speed will not reduce, and the revolving speed of wind wheel is positively retained in certain range, wind loading rating enhancing.
Description
Technical field
A kind of device of wind-driven generator, especially blade can tilt the wind turbines rotor of speed regulation.
Background technique
Existing horizontal axis wind-driven generator is adjusted the speed by the mode of deflection wind wheel, Kaplan mostly.Wind wheel plunders wind face
Product does not change with wind-force and changes size, dislikes small when wind is weak, dislikes big when wind is strong.The variation that wind area cannot be plunderred using wind wheel is carried out
Speed regulation.
Summary of the invention
It cannot be adjusted the speed using the variation for plunderring wind area to change existing wind turbines rotor.The present invention provides one kind
Blade tiltable wind turbines rotor.The wind wheel changes the gradient of the downwind of blade with wind-force size, makes wind wheel
It plunders wind area to increase or reduce, be adjusted the speed automatically.
The present invention solves technical solution used in its technical problem: a kind of wind turbines rotor, including wheel hub, leaf
Piece, tension spring.
It is hinged between the wheel hub and the blade by swivel pin, in this way, blade can also edge while wind wheel rotates
Wind direction inclination.
The lower section of the blade has tension spring bar.Each tension spring bar has the tension spring to be connected between each other.When wind is small, draw
The pulling force of spring is greater than wind to the thrust of blade, and wind wheel plunders wind area and is in maximum rating, and revolving speed is improved with the increase of wind-force.
When wind speed is more than rated wind speed, wind is greater than the pulling force of tension spring to the thrust of blade, and tension spring is elongated, and blade down the wind inclines
Tiltedly, the reduction of wind area is plunderred, revolving speed is not improved with the increase of wind speed, and wind speed reduces at this time, and the pulling force of tension spring is greater than wind to leaf
The tilt angle of the thrust of piece, tension spring retraction, blade reduces, and plunders the increase of wind area, and revolving speed does not reduce with the reduction of wind speed.
When high wind, blade pitch angle is greatly increased, and impeller plunders wind area very little, and blade is hardly damaged.Pass through blade pitch angle
Change, wind speed round can be automatically kept in a certain range, be influenced by wind-force variation smaller.It is certain in order to have when blade lean
Space, Downwind type is generally used to wind mode.This wind wheel is generally relatively specific for small wind turbine.
The invention has the advantages that can adjust the speed automatically in the range of wider wind-force, revolving speed is kept in balance, wind resistance power
By force, it is high to be conducive to rate for wind energy.The wind wheel that equally can be used as wind energy conversion system uses.Its structure is simple, beneficial to manufacturing, installing.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the windward side organigram of the embodiment of the present invention.
Fig. 2 is the I--I cross-sectional view of Fig. 1.
1. blade in figure, 2. swivel pins, 3. wheel hubs, 4. tension spring bars, 5. tension springs.
Specific embodiment
In Fig. 1, blade (1) is hinged by swivel pin (2) with wheel hub (3), forms wind wheel.Below each blade (1)
Have tension spring bar (4), each tension spring bar (4) between each other on have tension spring (5) be connected.When wind speed is more than rated wind speed, wind effect
It is greater than the pulling force of tension spring (5) in the thrust of blade (1), is elongated by tension spring bar (4) tension spring (5), blade (1) down the wind inclines
Tiltedly, the reduction of wind area is plunderred, revolving speed is not improved with the increase of wind speed.Wind speed reduces at this time, and the pulling force of tension spring (5) is greater than wind pair
The tilt angle of the thrust of blade (1), tension spring (5) retraction, blade reduces, and plunders the increase of wind area, revolving speed is not with the drop of wind speed
It is low and reduce, in this way, the revolving speed of wind wheel is positively retained in certain range.
It is tension spring bar (4) below blade (1), one end and the blade (1) of tension spring bar (4) are fixedly linked, another in Fig. 2
End can hang tension spring.Blade has hinge hole on (1), is hinged by swivel pin (3) and the hinge hole on wheel hub (2).
Claims (3)
1. a kind of blade tiltable wind turbines rotor, it is characterized in that: wheel hub is hinged by swivel pin with each blade, blade
There is tension spring bar in lower section.
2. blade tiltable wind turbines rotor according to claim 1, it is characterized in that: one end of tension spring bar and blade
It is fixedly linked, the other end can hang tension spring.
3. blade tiltable wind turbines rotor according to claim 2, it is characterized in that: each tension spring bar is mutual
All hang with tension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309288.3A CN109931213A (en) | 2019-04-17 | 2019-04-17 | Blade tiltable wind turbines rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309288.3A CN109931213A (en) | 2019-04-17 | 2019-04-17 | Blade tiltable wind turbines rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931213A true CN109931213A (en) | 2019-06-25 |
Family
ID=66990234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910309288.3A Pending CN109931213A (en) | 2019-04-17 | 2019-04-17 | Blade tiltable wind turbines rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931213A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227803B1 (en) * | 1996-11-30 | 2001-05-08 | Hyun Jin Shim | Apparatus for generating electric power using wind force |
| US20050196281A1 (en) * | 2004-03-02 | 2005-09-08 | Dong Yong Kim | Wind driven power generating system |
| CN2763568Y (en) * | 2004-12-17 | 2006-03-08 | 于占民 | Windmill with rear inclined blade |
| US20110211957A1 (en) * | 2010-02-26 | 2011-09-01 | Mark Folsom | Self regulating wind turbine |
| CN102486157A (en) * | 2009-09-28 | 2012-06-06 | 胡国贤 | Fan blade safety device for wind driven generator |
| CN202756173U (en) * | 2012-07-17 | 2013-02-27 | 深圳市飞尔特科技有限公司 | Adjustable-speed wind wheel |
| CN103114964A (en) * | 2013-02-05 | 2013-05-22 | 西安交通大学 | Downwind wind turbine blade system with angular displacement adjustable blades |
-
2019
- 2019-04-17 CN CN201910309288.3A patent/CN109931213A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227803B1 (en) * | 1996-11-30 | 2001-05-08 | Hyun Jin Shim | Apparatus for generating electric power using wind force |
| US20050196281A1 (en) * | 2004-03-02 | 2005-09-08 | Dong Yong Kim | Wind driven power generating system |
| CN2763568Y (en) * | 2004-12-17 | 2006-03-08 | 于占民 | Windmill with rear inclined blade |
| CN102486157A (en) * | 2009-09-28 | 2012-06-06 | 胡国贤 | Fan blade safety device for wind driven generator |
| US20110211957A1 (en) * | 2010-02-26 | 2011-09-01 | Mark Folsom | Self regulating wind turbine |
| CN202756173U (en) * | 2012-07-17 | 2013-02-27 | 深圳市飞尔特科技有限公司 | Adjustable-speed wind wheel |
| CN103114964A (en) * | 2013-02-05 | 2013-05-22 | 西安交通大学 | Downwind wind turbine blade system with angular displacement adjustable blades |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190625 |