CN2830694Y - Automatic regulator for elevation of propeller of wind-driven generator - Google Patents
Automatic regulator for elevation of propeller of wind-driven generator Download PDFInfo
- Publication number
- CN2830694Y CN2830694Y CNU2005200460923U CN200520046092U CN2830694Y CN 2830694 Y CN2830694 Y CN 2830694Y CN U2005200460923 U CNU2005200460923 U CN U2005200460923U CN 200520046092 U CN200520046092 U CN 200520046092U CN 2830694 Y CN2830694 Y CN 2830694Y
- Authority
- CN
- China
- Prior art keywords
- propeller
- blade
- sliding sleeve
- pressure liquid
- main shaft
- 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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- 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 regulator for the attack angle of propeller blades of a wind generator, wherein 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, propeller blades are respectively arranged on each propeller axle, the main axle is provided with a sliding sleeve, the propeller blades are provided with connecting heads on side positions of propeller axles and the corresponding position of the sliding sleeve, the connecting heads are connected by connecting rods, the main axle is provided with hydraulic cylinders, the number of the hydraulic cylinders is the same as the number of the propeller blades, plunger pistons of the hydraulic cylinders are connected with the sliding sleeve, the inner part of each propeller blade is provided with a pressure liquid storing tank and the pressure liquid storing tank and the hydraulic cylinders are connected by pipelines. When the wind is strong, the propellers push the sliding sleeve to backward move to compress hydraulic oil in the hydraulic cylinders to enter the pressure liquid storing tank until the pressure is balanced. When the wind is not strong, the hydraulic oil in the pressure liquid storing tank pushes the sliding sleeve to forward move by the hydraulic cylinders and the attack angle of the propeller blades is increased. The purpose of automatic regulation 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 power generator oar blade angle of attack controlling 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.
Existing change oar blower fan structure complexity, cost height, not easy-maintaining.And the action of servo control system needs the regular hour, when wind-force changes complexity, reacts slower.
The model utility content
The utility model purpose is to provide a kind of wind power generator oar blade angle of attack automatic control tegulatingdevice fast, simple in structure that reacts, to reduce the unit cost.
Scheme of the present utility model is: a kind of wind power generator oar blade angle of attack automatic control tegulatingdevice, propeller hub is fixedly mounted on the main shaft, propeller hub be provided with at least two vertical with main shaft, the oar axle that can rotate, blade is installed on each oar axle one by one, main shaft is provided with sliding sleeve, 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, the oil hydraulic cylinder consistent with blade quantity is installed on the main shaft, the plunger of oil hydraulic cylinder is connected on the sliding sleeve, blade inside is provided with the pressure liquid container, and the pressure liquid container is connected by pipeline with oil hydraulic cylinder.
The pressure liquid container is made up of cylinder body, piston, spring, is provided with piston in the connector-equipped cylinder body of front end, is provided with spring between the rear portion of piston and the cylinder base, pours into hydraulic oil in the cavity volume of cylinder body inner carrier front portion.
Main shaft is connected by spline with sliding sleeve.
Oil hydraulic cylinder is evenly distributed on main shaft, and is corresponding one by one with the position of blade.
Advantage of the present invention is: because blade is connected by connecting rod with sliding sleeve, between sliding sleeve and main shaft oil hydraulic cylinder is housed, oil hydraulic cylinder is connected with blade pressure inside liquid container, when wind-force was big, blade was stressed big, and blade promotes sliding sleeve and retreats, hydraulic oil in the compression hydraulic cylinder enters the pressure liquid container, until pressure balance, this moment, blade rotated automatically, had reduced the angle of attack; When wind-force hour, blade is stressed little, and the hydraulic oil in the pressure liquid container is forced out under the elastic force effect of spring, by the reach of cylinder pushes sliding sleeve, blade rotates, and the angle of attack increases, reach self-regulating purpose, had 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 the structural representation of the utility model hub portion.
Fig. 2 is the structural representation of blade.
Mark among the figure: 1 wheel hub, 2 keys, 3 splines, 4 sliding sleeves, 5 main shafts, 6 oil hydraulic cylinders, 7 pipelines, 8 connecting rods, 9 oar axles, 10 connecting heads, 11 blades, 12 pressure liquid container cylinder bodies, 13 pistons, 14 springs, 15 hydraulic oil.
Embodiment
Referring to Fig. 1, in embodiment's the wind power generator oar blade angle of attack automatic control tegulatingdevice, propeller hub 1 is fixedly mounted on the main shaft, propeller hub 1 be provided with three vertical with main shaft, the oar axle 9 that can rotate, blade 11 is installed on each corresponding oar axle 9 one by one, main shaft 5 is provided with sliding sleeve 4, flexibly connect by spline therebetween, sliding sleeve 4 can endwisely slipping along main shaft 5, be provided with connecting head 10 in the side position of oar axle 9 and the relevant position on the sliding sleeve 4 on the blade 11,10 of connecting heads connect with connecting rod 8, the oil hydraulic cylinder consistent with blade quantity 6 is installed on the main shaft 5, the plunger of oil hydraulic cylinder 6 is connected on the sliding sleeve 4, and blade 11 inside are provided with the pressure liquid container, and the pressure liquid container is connected by pipeline 7 with oil hydraulic cylinder 6.
Oil hydraulic cylinder 6 is evenly distributed on main shaft 5, and is corresponding one by one with the position of blade 11.
The structure of pressure liquid container as shown in Figure 2, the pressure liquid container is made up of cylinder body 12, piston 13, spring 14, in the connector-equipped cylinder body 12 of front end, be provided with piston 13, be provided with spring 14 between the rear portion of piston 13 and cylinder body 12 bottoms, perfusion hydraulic oil 15 in the cavity volume of cylinder body inner carrier front portion.
When wind-force is big, blade 11 is stressed big, and wind-force is decomposed into one along the tangential component of paddle wheel, promotes blade 11 and rotates around main shaft 5, drive blower fan and rotate generating, another along paddle shaft to component force blade 11 towards down the wind angular turn, this power promotes sliding sleeves 4 by connecting rod 8 and retreats, the hydraulic oil in the compression hydraulic cylinder 6 enters the pressure liquid container, through piston 13 pressure springs 14, until pressure balance, this moment, blade 11 rotations reduced the angle of attack; When wind-force hour, blade 11 is stressed little, and the hydraulic oil 15 in the pressure liquid container is extruded by piston 12 under the elastic force effect of spring 14, promotes sliding sleeves 4 reaches by oil hydraulic cylinder 6, and blade 11 rotates, and the angle of attack increases, and has reached self-regulating purpose.
Claims (4)
1. wind power generator oar blade angle of attack automatic control tegulatingdevice, propeller hub (1) is fixedly mounted on the main shaft (5), propeller hub (1) be provided with at least two vertical with main shaft, the oar axle (9) that can rotate, blade (11) is installed on each oar axle (9) one by one, it is characterized in that: main shaft (5) is provided with sliding sleeve (4), blade (11) is gone up and is provided with connecting head (10) in the side position and the relevant position on the sliding sleeve of oar axle, connect with connecting rod (8) between connecting head (10), the oil hydraulic cylinder consistent with blade quantity (6) is installed on the main shaft (5), the plunger of oil hydraulic cylinder (6) is connected on the sliding sleeve (4), blade (11) inside is provided with the pressure liquid container, and the pressure liquid container is connected by pipeline (7) with oil hydraulic cylinder (6).
2. wind power generator oar blade angle of attack automatic control tegulatingdevice as claimed in claim 1, it is characterized in that: described pressure liquid container is made up of cylinder body (12), piston (13), spring (14), in the connector-equipped cylinder body of front end (12), be provided with piston (13), be provided with spring (14) between the rear portion of piston (13) and cylinder body (12) bottom, pour into hydraulic oil (15) in the cavity volume of cylinder body inner carrier front portion.
3. wind power generator oar blade angle of attack automatic control tegulatingdevice as claimed in claim 1 is characterized in that: main shaft (5) is connected by spline with sliding sleeve (4).
4. wind power generator oar blade angle of attack automatic control tegulatingdevice as claimed in claim 1 is characterized in that: oil hydraulic cylinder (6) is evenly distributed on main shaft (5), and is corresponding one by one with the position of blade (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200460923U CN2830694Y (en) | 2005-10-31 | 2005-10-31 | Automatic regulator for elevation of propeller of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200460923U CN2830694Y (en) | 2005-10-31 | 2005-10-31 | Automatic regulator for elevation of propeller of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830694Y true CN2830694Y (en) | 2006-10-25 |
Family
ID=37135621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200460923U Expired - Fee Related CN2830694Y (en) | 2005-10-31 | 2005-10-31 | Automatic regulator for elevation of propeller of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830694Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074087A (en) * | 2021-04-12 | 2021-07-06 | 南通理工学院 | Wind power generation device for new energy hybrid power ship |
-
2005
- 2005-10-31 CN CNU2005200460923U patent/CN2830694Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074087A (en) * | 2021-04-12 | 2021-07-06 | 南通理工学院 | Wind power generation device for new energy hybrid power ship |
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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 |