CN101457744B - Passive paddle changing wind power generator - Google Patents
Passive paddle changing wind power generator Download PDFInfo
- Publication number
- CN101457744B CN101457744B CN2008101638404A CN200810163840A CN101457744B CN 101457744 B CN101457744 B CN 101457744B CN 2008101638404 A CN2008101638404 A CN 2008101638404A CN 200810163840 A CN200810163840 A CN 200810163840A CN 101457744 B CN101457744 B CN 101457744B
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- China
- Prior art keywords
- fan blade
- wind
- aerogenerator
- blade connection
- connection handle
- 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.)
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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 invention relates to a passive variable propellers aerogenerator, comprising fan blades, fan blade connection handles, hub radial canals, cranks, synchronous disks, a motor shaft and pull rods, wherein, the fan blades are installed on the fan blade connection handles connected with the hub radial canals by bearings, the fan blade connection handles and the hub radial canals can relatively rotate, the root parts of the fan blade connection handles are connected with a crank connected with the synchronous disks by linkage structures, the pull rods are connected on the synchronous disks, and centrifugal hammers are installed on the fan blade connection handles. In the aerogenerator, the variable propellers have simple structure, favorable stability and obvious effect, control and adjust the angle of each wind wheel blade handle by the centrifugal force to the centrifugal hammers by the rotation of the aerogenerator, and cause the wind wheel of the aerogenerator to be at an optimal start angle during low wind and to be at an optimal windward angle position at rated wind speed; during strong wind force, the rotate speed of the aerogenerator can be controlled with a rated rotate speed, thereby preventing the overload of the aerogenerator and improving the safety and the stability of the aerogenerator.
Description
Technical field
Patent of the present invention relates to a kind of wind-driven generator, particularly a kind of passive paddle changing wind power generator.
Background technique
Social now, non-renewable energy resources reduce day by day, and energy problem is serious day by day, and the wind energy conduct is taken endless, the renewable energy sources of environmental protection has bright development prospect, is the main direction that the current new and renewable sources of energy of China is implemented utilization.In wind-power electricity generation, because natural wind speed is changeable,, reaches maximum and utilize effect in order to obtain maximum wind energy, often adopt to become the oar technology, the angle of fan blade and windward side is adjusted to the optimum state.This technology is because its low wind starts, and the advantage of strong wind speed limit has improved the service behaviour of wind-driven generator under various weather conditions, therefore in the application of wind-power electricity generation more and more widely.But because the vane change device of present employing machinery control, structure more complicated, transmission performance instability, manufacture cost is higher, the employing electrical control, less stable under the atrocious weather situation, rate of fault is higher, has brought considerable influence to wind-driven generator.
Summary of the invention
The objective of the invention is to provide a kind of passive paddle changing wind power generator of simple in structure, good stability for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the passive paddle changing wind power generator that the present invention is designed, it comprises fan blade, the fan blade connection handle, the wheel hub radial canal, crank, synchronous disk, motor shaft, pull bar, fan blade is installed on the fan blade connection handle, the fan blade connection handle is connected with the wheel hub radial canal by bearing, fan blade connection handle and wheel hub radial canal can relatively rotate, the root of fan blade connection handle is connected with crank, crank is connected with synchronous disk by serial verb construction, this serial verb construction is converted into the rotation motion of fan blade connection handle and crank the to-and-fro motion of synchronous disk, be connected with pull bar on the synchronous disk, on the fan blade connection handle centrifugal hammer is installed, centrifugal hammer can be installed in the angle on the fan blade connection handle by specific linkage structure selection, fan blade connection handle and centrifugal hammer are for fixedlying connected after installation, centrifugal hammer can rotate together along with the fan blade that is installed on the fan blade connection handle, consequent centrifugal force orders about centrifugal hammer drive fan blade connection handle and fan blade rotates relative to the wheel hub radial canal, thereby automatically the angle of fan blade and windward side is adjusted to the optimum state, make wind turbines rotor be in the optimum start-up angle when hanging down wind, remain on the best position, angle that facings the wind during rated wind speed, can all the time the wind-driven generator rotating speed be controlled in the rated speed during strong wind.Pull bar one end can be provided with spring capping, be provided with spring between motor shaft and the spring capping, be provided with damper in the spring, the elastic force that spring deformation produces passes through pull bar, Concentric plate, crank, the centrifugal force of fan blade connection handle and centrifugal hammer forms a pair of equilibrant, when wind speed reduces, the fan blade rotational speed is slack-off, when the centrifugal force of centrifugal hammer reduces, the angle of fan blade relies on the elastic force of spring to automatically reset, the compression of spring and reset and be subjected to the restriction of damper, can eliminate the too fast variation of wind speed and cause frequently becoming the vibration that oar brings, thereby reach the purpose of more steady passive paddle changing.Centrifugal hammer can comprise adjustable processing nut, standard nut and screw rod, adjustable processing nut and standard nut and tightly be installed on the screw rod, the size that can regulate centrifugal force that centrifugal hammer produces by the shift length of adjustable processing nut on screw rod.
The resulting passive paddle changing wind power generator of the present invention, its vane change device simple in structure, good stability, it is obvious to become the oar effect, when rotating by wind-driven generator self to centrifugal force that centrifugal hammer produces, come the angle of regulating and controlling wind wheel petiole, make wind turbines rotor be in the optimum start-up angle when hanging down wind, remain on the best position, angle that facings the wind during rated wind speed, can all the time the wind-driven generator rotating speed be controlled in the rated speed during strong wind, the restriction generator causes overload, has improved the Security and the stability of wind-driven generator.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the hub portion structural representation of 1 passive paddle changing wind power generator of the embodiment of the invention;
Fig. 3 is the structural representation of the embodiment of the invention 2;
Fan blade position view when Fig. 4 is the low wind of the embodiment of the invention 2;
Fan blade position view when Fig. 5 is the embodiment of the invention 2 rated wind speeds;
Fan blade position view when Fig. 6 is the embodiment of the invention 2 strong wind;
Among the figure: 1, fan blade 2, fan blade connection handle 3, wheel hub radial canal 4, crank 5, synchronous disk 6, motor shaft 7, pull bar 8, bearing 9, centrifugal hammer 10, spring capping 11, spring 12, damper 13, adjustable processing nut 14, standard nut 15, screw rod 16, internal thread mounting blocks 17, set screw nut 18, wind wheel rotation card 19, fan blade windward side 20, connecting rod 21, standing screw
Embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 1, 2, the described passive paddle changing wind power generator of present embodiment, it comprises fan blade 1, fan blade connection handle 2, wheel hub radial canal 3, crank 4, synchronous disk 5, motor shaft 6, pull bar 7, fan blade 1 is installed on the fan blade connection handle 2, fan blade connection handle 2 is connected with wheel hub radial canal 3 by bearing 8, can relatively rotate.The root of fan blade connection handle 2 and crank 4 adopts keys to be connected, and crank 4 is connected with synchronous disk 5 by the serial verb construction of three connecting rods 20 and six joint shaft bearings compositions, thereby makes the rotation motion of fan blade connection handle 2 be converted into the to-and-fro motion of synchronous disk 5.Synchronous disk 5 adopts flat key to cooperate with the pull bar 7 that passes hollow motor shaft 6, is provided with bolt pull bar 7 and synchronous disk 5 on pull bar 7.Internal thread mounting blocks 16 is installed on the fan blade connection handle 2 by standing screw 21, and centrifugal hammer 9 is provided with outside thread, and by being threaded on the internal thread mounting blocks 16, and by set screw nut 17 and tight, centrifugal hammer 9 is spent for 3 one-tenth 90 with the wheel hub radial canal.Centrifugal hammer 9 comprises adjustable processing nut 13, standard nut 14 and screw rod 15, adjustable processing nut 13 and standard nut 14 and tightly on screw rod 15, the size that can regulate centrifugal hammer 9 centrifugal force that produces by the shift length of adjustable processing nut 13 on screw rod 15.
Embodiment 2
As shown in Figure 3, the described passive paddle changing wind power generator of present embodiment, be on embodiment 1 basis, be provided with spring capping 10 at pull bar 7 one ends, be provided with spring 11 between motor shaft 6 and the spring capping 10, be provided with damper 12 in the spring 11, the elastic force that spring 11 deformation produce is by pull bar 7, Concentric plate 5, crank 4, fan blade connection handle 2 forms a pair of equilibrant with the centrifugal force of centrifugal hammer 9, when wind speed reduces, fan blade 1 rotational speed is slack-off, when the centrifugal force of centrifugal hammer 9 reduces, the angle of fan blade 1 relies on the elastic force of spring 11 to automatically reset, the compression of spring 11 and reset and be subjected to the restriction of damper 12, can eliminate the too fast variation of wind speed and cause frequently becoming the vibration that oar brings, thereby reach the purpose of more steady passive paddle changing.
As shown in Figure 4, when wind speed at the incision wind speed when following, because the rotating speed of wind wheel has only several rev/mins, the action of centrifugal force of centrifugal hammer 9 is very little, so oar does not take place to become in fan blade 1, this moment, centrifugal hammer 9 rotated card 18 angle maximums with wind wheel, fan blade windward side 19 and wind wheel rotation card 18 angle b1, and blade angle is in position, optimum start-up angle; When wind speed is between incision wind speed and rated wind speed, the rotating speed of wind wheel begins to increase near rated speed, at this moment fan blade 1 is because centrifugal hammer 9 action of centrifugal force begin to become oar, fan blade windward side 19 gradually overlaps with wind wheel rotation card 18, as shown in Figure 5, vertical with wind direction, make the best position, angle that facings the wind of fan blade 1 convergence; As shown in Figure 6, when wind speed surpasses rated wind speed, fan blade centrifugal hammer 9 drive under further become oar, with the rising of rotating speed until fan blade 1 angle sweepback, fan blade windward side 19 forms secondary angle b2 with wind wheel rotation card 18, thereby generation counterrotating moment stops the further rising of wind speed round, and wind speed round is controlled in the rated speed all the time, thereby reaches the purpose of strong wind speed limit.
Claims (2)
1. passive paddle changing wind power generator, it comprises fan blade (1), fan blade connection handle (2), wheel hub radial canal (3), crank (4), synchronous disk (5), motor shaft (6), pull bar (7), fan blade (1) is installed on the fan blade connection handle (2), fan blade connection handle (2) is connected with wheel hub radial canal (3) by bearing (8), the root of fan blade connection handle (2) is connected with crank (4), crank (4) is connected with synchronous disk (5) by serial verb construction, be connected with pull bar (7) on the synchronous disk (5), it is characterized in that being equipped with on the described fan blade connection handle (2) centrifugal hammer (9).
2. passive paddle changing wind power generator according to claim 1 is characterized in that described pull bar (7) one ends are provided with spring capping (10), is provided with spring (11) between motor shaft (6) and the spring capping (10), is provided with damper (12) in the spring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101638404A CN101457744B (en) | 2008-12-25 | 2008-12-25 | Passive paddle changing wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101638404A CN101457744B (en) | 2008-12-25 | 2008-12-25 | Passive paddle changing wind power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457744A CN101457744A (en) | 2009-06-17 |
| CN101457744B true CN101457744B (en) | 2011-08-31 |
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ID=40768794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101638404A Expired - Fee Related CN101457744B (en) | 2008-12-25 | 2008-12-25 | Passive paddle changing wind power generator |
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| Country | Link |
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| CN (1) | CN101457744B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936260A (en) * | 2010-08-26 | 2011-01-05 | 黄石华科新能源科技有限公司 | Pitch and revolving angle-changing wind power generator |
| JP4749504B1 (en) * | 2010-10-14 | 2011-08-17 | 株式会社ビルメン鹿児島 | Wind turbine of wind power generator and wind power generator |
| CN102691620A (en) * | 2011-03-22 | 2012-09-26 | 上海万德风力发电股份有限公司 | Automatic pitch control and braking device for permanent-magnetic direct-drive wind power generator |
| CN102996345B (en) * | 2012-12-26 | 2014-09-24 | 浙江理工大学 | Variable pitch device of turbomachinery |
| CN109139369B (en) * | 2017-06-27 | 2020-05-19 | 北京金风科创风电设备有限公司 | Wind generating set becomes oar device and wind generating set |
| CN113107769A (en) * | 2021-05-08 | 2021-07-13 | 郑州亨特利电子科技有限公司 | New energy wind power generation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909703A (en) * | 1988-12-02 | 1990-03-20 | Jacobs Paul R | Motion damping apparatus for wind driven propellers |
| GB2436599A (en) * | 2006-03-30 | 2007-10-03 | Boost Energy Systems Ltd | Wind turbine blade furling system |
| CN201011335Y (en) * | 2006-08-03 | 2008-01-23 | 陕西新通智能科技有限公司 | Self-adapting torsional spring velocity regulating aerogenerator |
| CN201339543Y (en) * | 2008-12-25 | 2009-11-04 | 浙江华鹰风电设备有限公司 | Passive pitch-controlled wind-powered generator |
-
2008
- 2008-12-25 CN CN2008101638404A patent/CN101457744B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909703A (en) * | 1988-12-02 | 1990-03-20 | Jacobs Paul R | Motion damping apparatus for wind driven propellers |
| GB2436599A (en) * | 2006-03-30 | 2007-10-03 | Boost Energy Systems Ltd | Wind turbine blade furling system |
| CN201011335Y (en) * | 2006-08-03 | 2008-01-23 | 陕西新通智能科技有限公司 | Self-adapting torsional spring velocity regulating aerogenerator |
| CN201339543Y (en) * | 2008-12-25 | 2009-11-04 | 浙江华鹰风电设备有限公司 | Passive pitch-controlled wind-powered generator |
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| CN101457744A (en) | 2009-06-17 |
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Granted publication date: 20110831 Termination date: 20211225 |
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