CN1752440A - Vane change device for small wind-driven generator - Google Patents
Vane change device for small wind-driven generator Download PDFInfo
- Publication number
- CN1752440A CN1752440A CNA2005100308865A CN200510030886A CN1752440A CN 1752440 A CN1752440 A CN 1752440A CN A2005100308865 A CNA2005100308865 A CN A2005100308865A CN 200510030886 A CN200510030886 A CN 200510030886A CN 1752440 A CN1752440 A CN 1752440A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- sliding sleeve
- blade
- wind
- driven generator
- 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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Classifications
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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
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- Wind Motors (AREA)
Abstract
In the invention, at least two rotary paddle shafts perpendicular to the main shaft is set on the propeller hub fixed on the main shaft. The paddle is mounted on the paddle shaft one by one. A slide-sleeve is disposed on the main shaft. The connecting heads are disposed beside of the paddle shafts on the paddles and on the slide-sleeve. Between the connecting heads are connected by the connecting-rods. The spring is disposed between the main shaft and the slide-sleeve.
Description
Technical field
The present invention relates to wind power plant, particularly to the improvement of wind-driven generator pitching device.
Background technique
Large-scale wind driven generator has the oar of deciding, becomes two kinds on oar.Decide oar and be exactly the angle of attack of blade and fix, wind-force can cause rotating speed too high during greater than certain value, and unit can't proper functioning; Become the blade angle of attack can regulate of oar blower fan, at wind-force hour, the angle of attack is big, the transformation efficiency height of wind-force, and when wind-force was big, the angle of attack diminished, and reduced the transformation efficiency of wind-force, made the blower fan all can proper functioning under various wind-force states.
The structure that becomes oar blower fan paddle wheel is, propeller hub is fixedly mounted on the main shaft, and propeller hub is provided with at least two vertical with main shaft, as to rotate oar axles, and blade is installed on each oar axle one by one, and blade can be rotated by driven by servomotor oar axle around the rotation of oar axle.In the blower fan of this structure, the size of wind-force is recorded by the vane speed measurement device, handle by airborne computer, and output order, the control actuating motor rotates, and regulates blade and rotates corresponding angle.Actuating motor is installed in the wheel hub or blade inside, and electricity cable is powered to motor by carbon brush on the blower fan main shaft and slip ring.
And more small-sized wind power generator adopts and decides paddle structure for simplified structure.Change complex area at wind-force, this blower fan is low to utilization ratio of wind energy, and wind speed is excessive can not to generate electricity on the contrary.
Have the vane change device complex structure that on large fan, uses now, the cost height, easy-maintaining is not suitable for using on small-sized fan.
Summary of the invention
The object of the invention is to provide a kind of wind-driven generator pitching device simple and reliable for structure, uses on the small-sized fan being adapted at.
The solution of the present invention is: a kind of vane change device for small wind-driven generator, propeller hub is fixedly mounted on the main shaft, propeller hub is provided with at least two vertical with main shaft, as to rotate oar axles, blade is installed on each oar axle one by one, be arranged with sliding sleeve on the main shaft, be provided with connecting head in the side position of oar axle and the relevant position on the sliding sleeve on the blade, connect with connecting rod between connecting head, be provided with spring between main shaft and sliding sleeve.
Spring is a stage clip, is enclosed within on the main shaft, and its two ends contact respectively between the step of the rear end of sliding sleeve and main shaft.
Main shaft and sliding sleeve flexibly connect by spline.
Advantage of the present invention is: because blade is connected by connecting rod with sliding sleeve, between sliding sleeve and main shaft spring is housed, when wind-force was big, blade was stressed big, and blade promotes sliding sleeve and retreats, pressure spring, and until pressure balance, this moment, blade rotated automatically, had reduced the angle of attack; When wind-force hour, blade is stressed little, and the elastic force of spring promotes the sliding sleeve reach, and blade rotates, and the angle of attack increases, and has reached self-regulating purpose, has advantage simple in structure, that cost is low, easy to maintenance.
Description of drawings
The invention will be further described with embodiment with reference to the accompanying drawings below.
Fig. 1 is a structural representation of the present invention.
Mark among the figure: 1 wheel hub, 2 keys, 3 sliding sleeves, 4 splines, 5 springs, 6 main shafts, 7 connecting rods, 8 connecting heads, 9 blades, 10 oar axles.
Embodiment
Referring to accompanying drawing, in embodiment's the wind generator device, propeller hub 1 is fixedly mounted on the main shaft 6, propeller hub 1 be provided with three vertical with main shaft, the oar axle 10 that can rotate, blade 9 is installed on each oar axle 10 one by one, can rotate around oar axle 10, be arranged with sliding sleeve 3 on the main shaft 6, be shaped on the spline 4 of working in coordination on the inwall of the outer wall of main shaft 6 and sliding sleeve 3, both flexibly connect by spline 4, and sliding sleeve 3 can endwisely slip in main shaft 6 upper edges, is provided with connecting head 8 in the side position of oar axle and the relevant position on the sliding sleeve on the blade 9,8 of connecting heads connect with connecting rod 7, and 3 of main shaft 6 and sliding sleeves are provided with spring 5.
Described spring 5 is a stage clip, is enclosed within on the main shaft 6, and its two ends contact respectively between the step of the rear end of sliding sleeve 3 and main shaft 6.
When wind-force is big, blade 9 is stressed big, wind-force is decomposed into one along the tangential component of paddle wheel, promote blade 9 and rotate, drive blower fan and rotate generating around main shaft 6, another along paddle shaft to component force blade 9 towards down the wind angular turn, this power promotes sliding sleeve 3 by connecting rod 7 and retreats, pressure spring 5 is until pressure balance, and this moment, blade 9 rotations reduced the angle of attack; When wind-force hour, blade 9 is stressed little, and the elastic force of spring 5 promotes sliding sleeve 3 reaches, promotes blades 9 through connecting rod 7 and rotates, and the angle of attack increases, and has reached self-regulating purpose.
Claims (3)
1. vane change device for small wind-driven generator, propeller hub (1) is fixedly mounted on the main shaft (6), propeller hub (1) is provided with at least two vertical with main shaft, as to rotate oar axles (10), blade (9) is installed on each oar axle (10) one by one, it is characterized in that: be arranged with sliding sleeve (3) on the main shaft (6), blade (9) is gone up and is provided with connecting head (8) in the side position and the relevant position on the sliding sleeve of oar axle, connects with connecting rod (7) between connecting head (8), is provided with spring (5) between main shaft (6) and sliding sleeve (3).
2. vane change device for small wind-driven generator as claimed in claim 1 is characterized in that: described spring (5) is a stage clip, is enclosed within on the main shaft (6), and its two ends contact respectively between the step of the rear end of sliding sleeve (3) and main shaft (6).
3. vane change device for small wind-driven generator as claimed in claim 1 is characterized in that: main shaft (6) flexibly connects by spline (4) with sliding sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100308865A CN1752440A (en) | 2005-10-31 | 2005-10-31 | Vane change device for small wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100308865A CN1752440A (en) | 2005-10-31 | 2005-10-31 | Vane change device for small wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752440A true CN1752440A (en) | 2006-03-29 |
Family
ID=36679414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100308865A Pending CN1752440A (en) | 2005-10-31 | 2005-10-31 | Vane change device for small wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1752440A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016259A (en) * | 2012-11-06 | 2013-04-03 | 刘文普 | Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power |
| CN103375338A (en) * | 2012-04-13 | 2013-10-30 | 黄石华科新能源科技有限公司 | Novel wind-pressure variable pitch wind generator |
| CN108775262A (en) * | 2018-05-30 | 2018-11-09 | 北京石油化工学院 | A kind of ram-air turbine blade pitch device |
| CN112431717A (en) * | 2020-11-23 | 2021-03-02 | 山东科技大学 | Unified variable pitch system and method for blades of small wind turbine |
-
2005
- 2005-10-31 CN CNA2005100308865A patent/CN1752440A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375338A (en) * | 2012-04-13 | 2013-10-30 | 黄石华科新能源科技有限公司 | Novel wind-pressure variable pitch wind generator |
| CN103016259A (en) * | 2012-11-06 | 2013-04-03 | 刘文普 | Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power |
| CN108775262A (en) * | 2018-05-30 | 2018-11-09 | 北京石油化工学院 | A kind of ram-air turbine blade pitch device |
| CN112431717A (en) * | 2020-11-23 | 2021-03-02 | 山东科技大学 | Unified variable pitch system and method for blades of small wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |