CN2830693Y - Self-balancing propeller variator of small wind-driven generator - Google Patents
Self-balancing propeller variator of small wind-driven generator Download PDFInfo
- Publication number
- CN2830693Y CN2830693Y CNU2005200460919U CN200520046091U CN2830693Y CN 2830693 Y CN2830693 Y CN 2830693Y CN U2005200460919 U CNU2005200460919 U CN U2005200460919U CN 200520046091 U CN200520046091 U CN 200520046091U CN 2830693 Y CN2830693 Y CN 2830693Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- blades
- main shaft
- propeller
- small
- 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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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
Abstract
The utility model relates to an automatic-balancing propeller changing device of a small wind generator. A propeller hub is fixedly arranged on a main axle. The propeller hub is provided with at least two rotary propeller axles vertical to the main axle. Blades are respectively arranged on each propeller axle. The main axle is sheathed with a sliding sleeve. The blades are provided with connecting heads on side positions of the propeller axles and the corresponding position of the sliding sleeve. The connecting heads are connected by connecting rods and a spring is arranged between the main axle and the sliding sleeve. When the wind force is big, the force applied on the blades is big and the blades push the sliding sleeve to backward move to compress the spring until pressure is balanced, at the same time, the blades automatically rotate and the facing angle is reduced. When the wind force is small, the force applied on the blades is small, the elastic force of the spring pushes the sliding sleeve to forward move, the blades rotate and the facing angle is enlarged. Thus, the purpose of automatic adjustment is obtained. The utility model has the advantages of simple structure, low cost and convenient maintenance.
Description
Technical field
The utility model 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.
The model utility content
The utility model purpose 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.
Scheme of the present utility model is: a kind of small-sized wind power generator self-balancing type vane change device, 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.
The utility model has the advantages that: 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 utility model is described in further detail with embodiment with reference to the accompanying drawings below.
Fig. 1 is a structural representation of the present utility model.
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 small-sized wind power generator self-balancing type vane change 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. small-sized wind power generator self-balancing type vane change device, 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, connect with connecting rod (7) between connecting head (8), be provided with spring (5) between main shaft (6) and sliding sleeve (3).
2. small-sized wind power generator self-balancing type vane change device 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. small-sized wind power generator self-balancing type vane change device 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 |
|---|---|---|---|
| CNU2005200460919U CN2830693Y (en) | 2005-10-31 | 2005-10-31 | Self-balancing propeller variator of small wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200460919U CN2830693Y (en) | 2005-10-31 | 2005-10-31 | Self-balancing propeller variator of small wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830693Y true CN2830693Y (en) | 2006-10-25 |
Family
ID=37135620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200460919U Expired - Fee Related CN2830693Y (en) | 2005-10-31 | 2005-10-31 | Self-balancing propeller variator of small wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830693Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392833A (en) * | 2011-09-16 | 2012-03-28 | 姚刚 | Wide variable pitch dynamic adjusting technique of mixed flow type fan |
| 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 |
-
2005
- 2005-10-31 CN CNU2005200460919U patent/CN2830693Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392833A (en) * | 2011-09-16 | 2012-03-28 | 姚刚 | Wide variable pitch dynamic adjusting technique of mixed flow type fan |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |