CN107013412A - A kind of small-size vertical axis wind turbine and its electricity-generating method of drive blade - Google Patents
A kind of small-size vertical axis wind turbine and its electricity-generating method of drive blade Download PDFInfo
- Publication number
- CN107013412A CN107013412A CN201710294687.8A CN201710294687A CN107013412A CN 107013412 A CN107013412 A CN 107013412A CN 201710294687 A CN201710294687 A CN 201710294687A CN 107013412 A CN107013412 A CN 107013412A
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- Prior art keywords
- blade
- cross bar
- hub
- generator
- fixed
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 34
- 230000005611 electricity Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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- 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
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The invention discloses a kind of small-size vertical axis wind turbine and its electricity-generating method of drive blade.The resistance of blade greatly reduces the efficiency of wind-driven generator.Two spokes of homonymy of the present invention and the two ends of a blade installation shaft are fixed respectively, and blade installation shaft constitutes revolute pair with blade；Blade is separated into two parts that chord length is not waited by blade installation shaft axis；Lever is fixed in the inner side of two blade installation shafts；Lever includes the first cross bar, montant, the second cross bar and baffle ring；Baffle ring is fixed on the second cross bar bottom；The angle of second cross bar and spoke is 5~10 °, and the baffle ring direction of two levers is opposite；Upper wheel hub is supported on the rotor of generator, and is connected by the rotor of clutch and generator.Blade is divided into non-decile by blade installation shaft and then forces blade to deflect by the present invention, and pin controls blade deflection angle to reach optimal front face area, improves the efficiency of generator.
Description
Technical field
The present invention relates to a kind of wind-driven generator, especially a kind of small-size vertical axis wind turbine for driving blade and its
Electricity-generating method.
Background technology
Wind-driven generator mainly has two kinds of trunnion axis and vertical axis.Horizontal-shaft wind turbine is adapted to be arranged in wind direction and wind speed all
More stable field wind field, is not suitable in the city of wind speed and direction change related frequency, and vertical axis windmill,
The characteristics of especially H types vertical axis windmill then can be well adapted for city wind regime.Vertical axis aerogenerator is off-network type wind
Power generating equipment, mainly meets the tendency of in city street lamp, LED display boards and remote mountain areas without the small-sized electricity consumption place such as electric user.
Traditional H generators are main to improve generating efficiency in terms of blade profile, stability.Generally all it is that generator is arranged on column
Top, the impeller of horizontal rotation is arranged on generator rotor shaft, and impeller is in the top of generator and the rotor of generator
Axle is connected, and drives generator amature to rotate in wind action inferior lobe wheel and sends electric energy.But the resistance of normal condition lower blade
Greatly reduce the efficiency of wind-driven generator.
The content of the invention
The purpose of the present invention be in view of the shortcomings of the prior art there is provided a kind of simple in construction, flexibility it is good, safe and reliable,
Shake the small-size vertical axis wind turbine and its electricity-generating method for the drive blade that small, starting wind velocity is low, generating efficiency is high.
In order to reach above-mentioned goal of the invention, technical scheme is realized in the following way：
A kind of small-size vertical axis wind turbine of drive blade of the present invention, including generator, blade, impeller hub, gear
Bar and blade installation shaft；Described impeller hub includes upper wheel hub, spoke, lower hub and connecting rod；Described connecting rod will be upper
Wheel hub and lower hub are linked into an integrated entity, and two spokes are symmetrically fixed with upper wheel hub and lower hub, and upper wheel hub and lower hub are same
Two spokes of side and the two ends of a blade installation shaft are fixed respectively, and every blade installation shaft is constituted with a piece of blade and rotated
It is secondary；Blade is separated into the unequal two parts of chord length by described blade installation shaft axis；The inner side of two blade installation shafts is equal
Fixed lever；Described lever includes the first cross bar, montant, the second cross bar and baffle ring；First cross bar is fixed with blade installation shaft,
Montant connects the first cross bar and the second cross bar, and baffle ring is fixed on the second cross bar bottom；The inner concave of baffle ring and leaf chord length are larger
Partial arcuate surface contact, or the arcuate surface of baffle ring are contacted with the arcuate surface of leaf chord length smaller portions；Second cross bar and spoke
Angle be 5~10 °, and two levers baffle ring towards opposite；Described lower hub and the top of thrust bearing are fixed, and are pushed away
The bottom of power bearing is fixed on column；Upper wheel hub is supported on the rotor of generator by ball bearing；One end of clutch
It is fixed on wheel hub, the rotor of the other end and generator is fixed；The base of generator is connected with column top by upper flange.
It is 1 that blade is separated into chord ratio by described blade installation shaft axis：2 two parts.
Elastic component is equipped with the inner concave of the baffle ring and outer concave surface.
Described column bottom is provided with lower flange.
Brake gear is set between described column and lower hub.
The electricity-generating method of the small-size vertical axis wind turbine of the drive blade is as follows：
When wind-force acts on blade, because blade installation shaft is not in the center of blade, leaf chord length major part
Suffered power is deflected compared with conference, and now the chord length major part of wherein a piece of blade is withstood by pin, and pin is prevented windward
The reduction in face, while another blade reaches the effective area in the plane perpendicular to wind direction due to the lower resistance area of wind-force effect
Equilbrium position when minimum, reduces resistance so that the asymmetric two panels blade impeller hub rotation in position, when impeller wheel
Clutch is combined when hub rotating speed reaches preset value, is generated electricity so as to drive the rotor of generator to rotate.
The present invention acts on loss and the disequilibrium feature of power of the area effect resistance of blade using wind-force, passes through leaf
Blade is divided into non-decile and then forces blade to deflect by piece installation axle, and the deflection of blade is controlled under the booster action of pin
Angle reaches optimal front face area, reduces drag losses, improves the efficiency of generator.The rotation of movable vane piece can be continuous
Adaptation wind direction, under actual condition have generality.Due to being small-sized vertical axis aerogenerator, its is simple in construction, into
This low, convenient to install and maintain, cities and towns street lamp, LED display, remote districts have universality, it is easy to promote.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is schematic diagram when two blades swing to stable state windward in the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, it is a kind of drive blade small-size vertical axis wind turbine, including generator 4, blade 11,
Impeller hub, pin 15 and blade installation shaft 16；Impeller hub includes upper wheel hub 1, spoke 14, lower hub 7 and connecting rod 12；Even
Extension bar 12 links into an integrated entity upper wheel hub 1 and lower hub 7, and two spokes 14 are symmetrically fixed with upper wheel hub 1 and lower hub 7,
Two spokes and the two ends of a blade installation shaft 16 of upper wheel hub 1 and the homonymy of lower hub 7 are fixed respectively, every blade installation shaft
16 constitute revolute pair with a piece of blade 11；It is 1 that blade 11 is separated into chord ratio by the axis of blade installation shaft 16：2 two parts；Two
The inner side of root blade installation shaft 16 is respectively and fixedly provided with lever 15；Lever includes the first cross bar, montant, the second cross bar and baffle ring；First
Cross bar is fixed with blade installation shaft 16, and montant connects the first cross bar and the second cross bar, and baffle ring is fixed on the second cross bar bottom；Blade
Turn under stable state, the inner concave of baffle ring is contacted with the arcuate surface of leaf chord length major part, or baffle ring arcuate surface with
The arcuate surface contact of leaf chord length smaller portions；The angle of second cross bar and spoke is 5~10 °, and the baffle ring of two levers
Towards conversely；Pin, which is arranged on, is used for the amplitude for controlling blade oscillating in blade installation shaft, maintain suitable angle；Baffle ring
The impulsive force of elastic component, buffering blade and pin is equipped with inner concave and outer concave surface；Lower hub 7 and the top of thrust bearing 8
Fixed, the bottom of thrust bearing 8 is fixed on column 6；The bottom of column 6 is provided with lower flange 10；Upper wheel hub 1 passes through ball bearing 13
It is supported on the rotor 3 of generator 4；One end of clutch 2 is fixed on wheel hub 1, and the rotor 3 of the other end and generator is consolidated
It is fixed；The base of generator 4 is connected with the top of column 6 by upper flange 5, constitutes the stationary part of small-size vertical axis wind turbine
Point；Blade 11, blade installation shaft 16, impeller hub, the rotor 3 of clutch 2 and generator 4 constitute small-sized vertical axis wind power generation
The rotating part of machine, under the action of the forces of the wind blade 11 and impeller hub start rotate, when impeller hub rotating speed reaches rated value
Clutch 2 is combined afterwards, and the rotor 3 of generator is rotated with impeller hub, and generator 4 starts to generate electricity, column 6 and lower hub 7
Between set brake gear 9, when impeller hub rotating speed exceed setting value when, the brake function of brake gear 9 start, reduction rotating speed with
Ensure safety.The installation site of blade, blade installation shaft shaft core position can be installed according to actual conditions, and the position of pin is according to leaf
Piece installation axle and blade oscillating angle are determined.
The electricity-generating method of the small-size vertical axis wind turbine of the drive blade is as follows：
When wind-force acts on blade, because blade installation shaft is not in the center of blade, leaf chord length major part
Suffered power is deflected compared with conference, and now the chord length major part of wherein a piece of blade is withstood by pin, and pin is prevented windward
The reduction in face, while another blade reaches the effective area in the plane perpendicular to wind direction due to the lower resistance area of wind-force effect
Equilbrium position when minimum, reduces resistance so that the asymmetric impeller hub rotation of two panels blade 11 in position, works as impeller
Clutch 2 is combined when hub rotation speed reaches preset value (can be set according to generator rating power), so as to drive turning for generator 4
Son 3, which is rotated, to generate electricity.The bending energy of the asymmetric two panels blade 11 in position and blade more effectively converts wind energy into blade rotation
Kinetic energy, flexibility can make it that effective projected area of resistance area is minimum, and then improve generating efficiency.
Claims (6)
1. a kind of small-size vertical axis wind turbine of drive blade, including generator, blade, impeller hub, pin and blade
Installation axle；It is characterized in that：Described impeller hub includes upper wheel hub, spoke, lower hub and connecting rod；Described connecting rod will
Upper wheel hub and lower hub are linked into an integrated entity, and two spokes, upper wheel hub and lower hub are symmetrically fixed with upper wheel hub and lower hub
Two spokes of homonymy and the two ends of a blade installation shaft are fixed respectively, and every blade installation shaft is constituted with a piece of blade and rotated
It is secondary；Blade is separated into the unequal two parts of chord length by described blade installation shaft axis；The inner side of two blade installation shafts is equal
Fixed lever；Described lever includes the first cross bar, montant, the second cross bar and baffle ring；First cross bar is fixed with blade installation shaft,
Montant connects the first cross bar and the second cross bar, and baffle ring is fixed on the second cross bar bottom；The inner concave of baffle ring and leaf chord length are larger
Partial arcuate surface contact, or the arcuate surface of baffle ring are contacted with the arcuate surface of leaf chord length smaller portions；Second cross bar and spoke
Angle be 5~10 °, and two levers baffle ring towards opposite；Described lower hub and the top of thrust bearing are fixed, and are pushed away
The bottom of power bearing is fixed on column；Upper wheel hub is supported on the rotor of generator by ball bearing；One end of clutch
It is fixed on wheel hub, the rotor of the other end and generator is fixed；The base of generator is connected with column top by upper flange.
2. a kind of small-size vertical axis wind turbine of drive blade according to claim 1, it is characterised in that：Described
It is 1 that blade is separated into chord ratio by blade installation shaft axis：2 two parts.
3. a kind of small-size vertical axis wind turbine of drive blade according to claim 1, it is characterised in that：The gear
Elastic component is equipped with the inner concave of ring and outer concave surface.
4. a kind of small-size vertical axis wind turbine of drive blade according to claim 1, it is characterised in that：Described
Column bottom is provided with lower flange.
5. a kind of small-size vertical axis wind turbine of drive blade according to claim 1, it is characterised in that：Described
Brake gear is set between column and lower hub.
6. a kind of electricity-generating method of the small-size vertical axis wind turbine of drive blade according to claim 1, its feature
It is：This method is specific as follows：
When wind-force acts on blade, because blade installation shaft is not in the center of blade, suffered by leaf chord length major part
Power deflected compared with conference, now the chord length major part of wherein a piece of blade is withstood by pin, and pin prevents windward side
Reduce, while another blade is because wind-force is acted on, lower resistance area reaches that the effective area in the plane perpendicular to wind direction is minimum
When equilbrium position, reduce resistance so that the asymmetric two panels blade impeller hub rotation in position, when impeller hub turn
Clutch is combined when speed reaches preset value, is generated electricity so as to drive the rotor of generator to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294687.8A CN107013412B (en) | 2017-04-28 | 2017-04-28 | Small vertical axis wind turbine with driven blades and power generation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294687.8A CN107013412B (en) | 2017-04-28 | 2017-04-28 | Small vertical axis wind turbine with driven blades and power generation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013412A true CN107013412A (en) | 2017-08-04 |
| CN107013412B CN107013412B (en) | 2023-08-08 |
Family
ID=59447272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710294687.8A Active CN107013412B (en) | 2017-04-28 | 2017-04-28 | Small vertical axis wind turbine with driven blades and power generation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013412B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610421A (en) * | 2020-12-21 | 2021-04-06 | 赖艳华 | Auxiliary device for safety in use of household wind driven generator |
| TWI772878B (en) * | 2020-09-07 | 2022-08-01 | 洪紳勝 | Vertical-axis wind turbine with automatic control of blade pitch angle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006037939A (en) * | 2004-07-28 | 2006-02-09 | Takeshi Mitsui | Wind-power generation system |
| US20070297902A1 (en) * | 2006-06-27 | 2007-12-27 | Jonsson Stanley C | Wind turbine having variable pitch airfoils that close when moving against the direction of the wind |
| CN201314277Y (en) * | 2008-11-28 | 2009-09-23 | 欧振玉 | Wind power generating device with vertical shaft |
| JP2013245564A (en) * | 2012-05-23 | 2013-12-09 | Ritsumeikan | Blade for vertical axial wind turbine and vertical axial wind turbine |
| CN103541864A (en) * | 2012-07-13 | 2014-01-29 | 胡德诚 | Small vertical-axis wind turbine |
| CN103982381A (en) * | 2014-06-07 | 2014-08-13 | 华电重工机械有限公司 | Wind power tower |
| JP2014156838A (en) * | 2013-02-18 | 2014-08-28 | Takanori Tsuchiya | Wind power generator |
| US20160222943A1 (en) * | 2015-01-30 | 2016-08-04 | John Nicklas | Vertical axis turbine |
| CN206830376U (en) * | 2017-04-28 | 2018-01-02 | 浙江理工大学 | A kind of small-size vertical axis wind turbine with movable vane piece |
-
2017
- 2017-04-28 CN CN201710294687.8A patent/CN107013412B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006037939A (en) * | 2004-07-28 | 2006-02-09 | Takeshi Mitsui | Wind-power generation system |
| US20070297902A1 (en) * | 2006-06-27 | 2007-12-27 | Jonsson Stanley C | Wind turbine having variable pitch airfoils that close when moving against the direction of the wind |
| CN201314277Y (en) * | 2008-11-28 | 2009-09-23 | 欧振玉 | Wind power generating device with vertical shaft |
| JP2013245564A (en) * | 2012-05-23 | 2013-12-09 | Ritsumeikan | Blade for vertical axial wind turbine and vertical axial wind turbine |
| CN103541864A (en) * | 2012-07-13 | 2014-01-29 | 胡德诚 | Small vertical-axis wind turbine |
| JP2014156838A (en) * | 2013-02-18 | 2014-08-28 | Takanori Tsuchiya | Wind power generator |
| CN103982381A (en) * | 2014-06-07 | 2014-08-13 | 华电重工机械有限公司 | Wind power tower |
| US20160222943A1 (en) * | 2015-01-30 | 2016-08-04 | John Nicklas | Vertical axis turbine |
| CN206830376U (en) * | 2017-04-28 | 2018-01-02 | 浙江理工大学 | A kind of small-size vertical axis wind turbine with movable vane piece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI772878B (en) * | 2020-09-07 | 2022-08-01 | 洪紳勝 | Vertical-axis wind turbine with automatic control of blade pitch angle |
| CN112610421A (en) * | 2020-12-21 | 2021-04-06 | 赖艳华 | Auxiliary device for safety in use of household wind driven generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013412B (en) | 2023-08-08 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230713 Address after: 509 Kangrui Times Square, Keyuan Business Building, 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen, Guangdong Province, 518000 Applicant after: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. Address before: 310018 No. 2 street, Xiasha Higher Education Park, Hangzhou, Zhejiang, 928 Applicant before: ZHEJIANG SCI-TECH University Effective date of registration: 20230713 Address after: 242300 No.17, Qinghua East Road, Ningguo City, Xuancheng City, Anhui Province Applicant after: STATE GRID ANHUI ELECTRIC POWER CO., LTD., NINGGUO POWER SUPPLY Co. Address before: 509 Kangrui Times Square, Keyuan Business Building, 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen, Guangdong Province, 518000 Applicant before: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. |
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