CN101324220A - Paddle changing mechanism of wind power generator - Google Patents
Paddle changing mechanism of wind power generator Download PDFInfo
- Publication number
- CN101324220A CN101324220A CNA2008100231848A CN200810023184A CN101324220A CN 101324220 A CN101324220 A CN 101324220A CN A2008100231848 A CNA2008100231848 A CN A2008100231848A CN 200810023184 A CN200810023184 A CN 200810023184A CN 101324220 A CN101324220 A CN 101324220A
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- Prior art keywords
- blade
- root
- hydraulic cylinder
- wind
- driven generator
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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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Abstract
The invention relates to a wind-driven generator, in particular to a variable propeller mechanism used for the wind-driven generator. The technical proposal provided by the invention is that the middle part of a hydraulic cylinder is articulated on a hydraulic cylinder base by using a pin roll, an outer end of a piston rod which is connected with the hydraulic cylinder in a sliding way is articulated with a right end of a connecting shaft, and the connecting shaft is arranged on a connecting base which is arranged at the root of a blade; the hydraulic cylinder base is arranged on an engine seat, a left end of the engine seat is provided with a pivoting support, the root of the blade is rotationally connected in the pivoting support, and a plurality of ball bearings evenly arranged along the circumference direction of the root of the blade are arranged between the pivoting support and the root of the blade; when the hydraulic cylinder works, the piston rod of the hydraulic cylinder drives the root of the blade to rotate around the axis of the root of the blade by the connecting shaft. The variable propeller mechanism of the invention can simplify the structure and cause the whole variable propeller mechanism to be more reasonable.
Description
Technical field
The present invention relates to wind-driven generator, refer in particular to a kind of blade pitch device that is used for wind-driven generator.
Background technique
Large-scale wind driven generator has the oar of deciding and becomes two kinds on oar, decides the angle of attack that oar is meant blade and fixes, and wind-force can cause rotating speed too high during greater than certain value, and unit can't proper functioning; The blade angle of attack of paddle changing wind power generator can be regulated, and when wind-force was little, it is big that the angle of attack becomes, the conversion ratio height of wind-force, and when wind-force was bigger, the angle of attack diminished, and to reduce the wind power transformation rate, made blower fan equal energy proper functioning under various wind-force states.The paddle wheel structure of paddle changing wind power generator is: propeller hub is provided with at least two oar axles that can rotate vertical with main shaft, and blade is installed on each oar axle one by one, and blade can rotate around the oar axle, is rotated by driven by servomotor oar axle.In the wind-driven generator of this structure, the size of wind-force is recorded by the vane speed measurement device, handle by airborne computer, output order, the control actuating motor rotates, regulate blade and rotate 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 main shaft and slip ring.The defective of this variation paddle structure is complex structure, cost height, easy-maintaining not.
Summary of the invention
The objective of the invention is to design a kind of blade pitch device of wind-driven generator,, make whole variation paddle structure more reasonable with simplified structure.
According to technological scheme provided by the invention, the middle part of oil hydraulic cylinder utilizes bearing pin to be articulated on the oil hydraulic cylinder seat, the outer end of the piston rod that is slidingly connected with oil hydraulic cylinder and the right-hand member of joining shaft are hinged, and joining shaft is installed on the connecting base, and described connecting base is installed on the root of blade; Described oil hydraulic cylinder seat is installed on the support, in the left part of support pivoting support is set, and described root of blade is rotationally connected with in the pivoting support, and the ball that several are evenly arranged around the circumferencial direction of root of blade is set between pivoting support and root of blade; When hydraulic cylinder works, its piston rod drives the rotational of root of blade around root of blade by joining shaft.
In described root of blade, the end of blade utilizes bolt to connect the ball inner ring, at the outer surface of the ball inner ring outer groove that circumferentially is provided for holding ball along the end, at the internal surface of described pivoting support the corresponding inner groovy that is used to hold ball is set; Two ends, the left and right sides at the ball inner ring are provided with outer plate and inner clip plate respectively, and described connecting base is installed on the inner clip plate, and the left end of described joining shaft is connected with outer plate.
The longitudinal plane shape flare of described connecting base, the big end of this tubaeform connecting base is connected with outside link plate 9, and small end and piston rod are hinged.Outer end at described piston rod is provided with connecting sleeve, utilizes bearing to interconnect between the right-hand member of this connecting sleeve and joining shaft.
Left end at support is provided with restraining groove, at the right-hand member of described bolt fixing head is set, and the position-limited lever perpendicular to bolt is set on fixing head, and the end of described position-limited lever is positioned at described restraining groove; After the ball inner ring utilizes bolt to be installed on the blade tip, position-limited lever is fixed on the fixing head of bolt again, and the end of position-limited lever is inserted in the restraining groove, to avoid blade in the course of the work, bolt occurs loosening.
The left and right sides at outer plate is provided with little end cap and liner plate respectively corresponding to the position that joining shaft is installed, and the left end of described joining shaft passes the hole that is arranged on liner plate and the outer plate, utilizes screw and little end cap to be installed on the outer plate again.
An end of described connecting sleeve along connecting sleeve counterbore radially is set, at the internal thread that the inwall setting of counterbore can be matched and be connected with the outside thread of piston rod outer end, the outer end of described piston rod utilizes screw thread to be connected with connecting sleeve; At the other end setting of the connecting sleeve through hole perpendicular to the counterbore center line, the right-hand member of described joining shaft utilizes Bearing Installation in the through hole of described connecting sleeve; Right-hand member at described connecting sleeve is provided with bearing cap.Between the two ends of bearing pin and oil hydraulic cylinder seat, axle sleeve is set.
Advantage of the present invention is: simple and reasonable, operation precision height, using effect are good.
Description of drawings
Fig. 1 is the A-A view of Fig. 2.
Fig. 2 is a planimetric map of the present invention.
Embodiment
As shown in Figure 1, 2: the middle part of oil hydraulic cylinder 1 utilizes bearing pin 24 to be articulated on the oil hydraulic cylinder seat 3, the outer end of the piston rod 22 that is slidingly connected with oil hydraulic cylinder 1 and the right-hand member of joining shaft 19 are hinged, joining shaft 19 is installed on the connecting base 18, and described connecting base 18 is installed on the root of blade; Described oil hydraulic cylinder seat 3 is installed on the support 23, in the left part of support 23 pivoting support 17 is set, described root of blade is rotationally connected with in the pivoting support 17, and the ball 6 that several are evenly arranged around the circumferencial direction of root of blade is set between pivoting support 17 and root of blade; When oil hydraulic cylinder 1 work, its piston rod 22 drives the rotational of root of blade around root of blade by joining shaft 19.Simultaneously, oil hydraulic cylinder 1 also rotates slightly around bearing pin 24.In the working procedure of wind-driven generator, this rotation is regular, makes the angle (angle of attack) of facining the wind of blade constantly obtain adjusting, to guarantee that blade has a more constant rotating speed, neither can be when rather windy, rotating speed is too high, again can be not too hour at wind, rotating speed is too slow.Utilize ball to realize that raceway is connected between pivoting support 17 and the root of blade, make the frictional force of blade the time very little around its rotational.
In described root of blade, the end 15 of blade utilizes bolt 7 to connect ball inner ring 16, the outer surface of ball inner ring 16 along the end 15 the outer groove that circumferentially is provided for holding ball 6, at the internal surface of described pivoting support 17 the corresponding inner groovy that is used to hold ball 6 is set; Described ball inner ring 16, pivoting support 17 and ball 6 have formed a very big bearing, have realized being rotationally connected of 23 on blade and support.Outer plate 10 and inner clip plate 9 are set respectively at the two ends, the left and right sides of ball inner ring 16, and described connecting base 18 is installed on the inner clip plate 9, and the left end of described joining shaft 19 is connected with outer plate 10.This Placement helps to improve mutual join strength, and helps to install and maintenance.
The longitudinal plane shape flare of described connecting base 18, the big end of this is tubaeform connecting base 18 is connected with outside link plate 9, and small end and piston rod 22 are hinged.Flaring connecting base 18 makes simple in structure and reliable.
In the outer end of described piston rod 22 connecting sleeve 20 is set, between the right-hand member of this connecting sleeve 20 and joining shaft 19, utilizes bearing to interconnect.This is I﹠M for convenience equally, and improves mutual join strength.
Left end at support 23 is provided with restraining groove 5, at the right-hand member of described bolt 7 fixing head 8 is set, and the position-limited lever 4 perpendicular to bolt 7 is set on fixing head 8, and the end of described position-limited lever 4 is positioned at described restraining groove 5; After ball inner ring 16 utilizes bolt 7 to be fixedly installed on the blade tip 15, position-limited lever 4 is fixed on the fixing head 8 of bolt 7 again, and the end of position-limited lever 4 is inserted in the restraining groove 5, to avoid blade in the course of the work, bolt 7 occurs loosening.Described position-limited lever 4 can adopt bolt.
The left and right sides at outer plate 10 is provided with small end lid 12 and liner plate 13 respectively corresponding to the position that joining shaft 19 is installed, and the left end of described joining shaft 19 passes the hole that is arranged on liner plate 13 and the outer plate 10, utilizes screw and small end lid 12 to be installed on the outer plate 10 again.
An end of described connecting sleeve 20 along connecting sleeve 20 counterbore radially is set, at the internal thread that the inwall setting of counterbore can be matched and be connected with the outside thread of piston rod 20 outer ends, the outer end of described piston rod 20 utilizes screw thread to be connected with connecting sleeve 20; At the other end setting of connecting sleeve 20 through hole perpendicular to the counterbore center line, the right-hand member of described joining shaft 19 utilizes Bearing Installation in the through hole of described connecting sleeve 20; Right-hand member at described connecting sleeve 20 is provided with bearing cap 21.Between the two ends of bearing pin 24 and oil hydraulic cylinder seat 3, axle sleeve 2 is set.Among the figure 11 connects pressing plate, the 14th, rain-proof cover.
Claims (8)
1, the blade pitch device of wind-driven generator, it is characterized in that: the middle part of oil hydraulic cylinder (1) utilizes bearing pin (24) to be articulated on the oil hydraulic cylinder seat (3), the outer end of the piston rod (22) that is slidingly connected with oil hydraulic cylinder (1) and the right-hand member of joining shaft (19) are hinged, joining shaft (19) is installed on the connecting base (18), and described connecting base (18) is installed on the root of blade; Described oil hydraulic cylinder seat (3) is installed on the support (23), in the left part of support (23) pivoting support (17) is set, described root of blade is rotationally connected with in the pivoting support (17), and the ball (6) that several are evenly arranged around the circumferencial direction of root of blade is set between pivoting support (17) and root of blade; When oil hydraulic cylinder (1) was worked, its piston rod (22) drove the rotational of root of blade around root of blade by joining shaft (19).
2, the blade pitch device of wind-driven generator according to claim 1, it is characterized in that: in described root of blade, the end of blade (15) utilizes bolt (7) to connect ball inner ring (16), the outer surface of ball inner ring (16) along the end the outer groove that circumferentially is provided for holding ball (6) of (15), at the internal surface of described pivoting support (17) the corresponding inner groovy that is used to hold ball (6) is set; Outer plate (10) and inner clip plate (9) are set respectively at the two ends, the left and right sides of ball inner ring (16), and described connecting base (18) is installed on the inner clip plate (9), and the left end of described joining shaft (19) is connected with outer plate (10).
3, the blade pitch device of wind-driven generator as claimed in claim 1 or 2 is characterized in that: the longitudinal plane shape flare of described connecting base (18), and the big end of this tubaeform connecting base (18) is connected with outside link plate (9), and small end and piston rod (22) are hinged.
4, the blade pitch device of wind-driven generator according to claim 1 is characterized in that: in the outer end of described piston rod (22) connecting sleeve (20) is set, utilizes bearing to interconnect between the right-hand member of this connecting sleeve (20) and joining shaft (19).
5, as the blade pitch device of wind-driven generator as described in the claim 2, it is characterized in that: the left end at support (23) is provided with restraining groove (5), right-hand member at described bolt (7) is provided with fixing head (8), go up the position-limited lever (4) that is provided with perpendicular to bolt (7) in fixing head (8), the end of described position-limited lever (4) is positioned at described restraining groove (5); After ball inner ring (16) utilizes bolt (7) to be fixedly installed on the blade tip (15), again position-limited lever (4) is fixed on the fixing head (8) of bolt (7), and make in the end insertion restraining groove (5) of position-limited lever (4), to avoid blade in the course of the work, bolt (7) occurs loosening.
6, as the blade pitch device of wind-driven generator as described in the claim 2, it is characterized in that: the left and right sides at outer plate (10) is provided with little end cap (12) and liner plate (13) respectively corresponding to the position that joining shaft (19) is installed, the left end of described joining shaft (19) passes the hole that is arranged on liner plate (13) and the outer plate (10), utilizes screw and little end cap (12) to be installed on the outer plate (10) again.
7, as the blade pitch device of wind-driven generator as described in the claim 4, it is characterized in that: along connecting sleeve (20) counterbore is set radially at an end of described connecting sleeve (20), at the internal thread that the inwall setting of counterbore can be matched and be connected with the outside thread of piston rod (20) outer end, the outer end of described piston rod (20) utilizes screw thread to be connected with connecting sleeve (20); At the other end setting of connecting sleeve (20) through hole perpendicular to the counterbore center line, the right-hand member of described joining shaft (19) utilizes Bearing Installation in the through hole of described connecting sleeve (20); Right-hand member at described connecting sleeve (20) is provided with bearing cap (21).
8, as the blade pitch device of wind-driven generator as described in the claim 2, it is characterized in that: between the two ends of bearing pin (24) and oil hydraulic cylinder seat (3), axle sleeve (2) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100231848A CN101324220B (en) | 2008-07-17 | 2008-07-17 | Paddle changing mechanism of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100231848A CN101324220B (en) | 2008-07-17 | 2008-07-17 | Paddle changing mechanism of wind power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101324220A true CN101324220A (en) | 2008-12-17 |
| CN101324220B CN101324220B (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100231848A Expired - Fee Related CN101324220B (en) | 2008-07-17 | 2008-07-17 | Paddle changing mechanism of wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101324220B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119272A (en) * | 2009-01-22 | 2011-07-06 | 三菱重工业株式会社 | Cylinder drive device |
| CN108884809A (en) * | 2016-02-04 | 2018-11-23 | 维斯塔斯风力***有限公司 | Wind turbine pitch actuators mounting structure |
| CN110131098A (en) * | 2019-02-26 | 2019-08-16 | 泗阳高传电机制造有限公司 | A kind of variable pitch wind power generation blade |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201225233Y (en) * | 2008-07-17 | 2009-04-22 | 无锡宝南机器制造有限公司 | Paddle changing mechanism of wind power generator |
-
2008
- 2008-07-17 CN CN2008100231848A patent/CN101324220B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119272A (en) * | 2009-01-22 | 2011-07-06 | 三菱重工业株式会社 | Cylinder drive device |
| CN102119272B (en) * | 2009-01-22 | 2013-01-09 | 三菱重工业株式会社 | Cylinder drive device |
| CN108884809A (en) * | 2016-02-04 | 2018-11-23 | 维斯塔斯风力***有限公司 | Wind turbine pitch actuators mounting structure |
| CN108884809B (en) * | 2016-02-04 | 2020-08-25 | 维斯塔斯风力***有限公司 | Wind turbine pitch actuator mounting structure |
| US11208983B2 (en) | 2016-02-04 | 2021-12-28 | Vestas Wind Systems A/S | Wind turbine pitch actuator mounting structure |
| CN110131098A (en) * | 2019-02-26 | 2019-08-16 | 泗阳高传电机制造有限公司 | A kind of variable pitch wind power generation blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101324220B (en) | 2011-12-07 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120717 |