CN102996344A - Pitch changing and periodical pitch changing device of downwind wind driven generator - Google Patents
Pitch changing and periodical pitch changing device of downwind wind driven generator Download PDFInfo
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- CN102996344A CN102996344A CN2012105024408A CN201210502440A CN102996344A CN 102996344 A CN102996344 A CN 102996344A CN 2012105024408 A CN2012105024408 A CN 2012105024408A CN 201210502440 A CN201210502440 A CN 201210502440A CN 102996344 A CN102996344 A CN 102996344A
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- oar
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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 pitch changing and periodical pitch changing device of a downwind wind driven generator, which changes the pitch through a wind speed rudder and changes the pitch periodically. One end of a pitch changing main shaft passes through a generator and a main shaft of a fan and is fixedly arranged on an outer frame of the wind driven generator, while the other end of the pitch changing main shaft passes through a hub to form a certain included angle with a pitch changing and periodical pitch changing slide rail. The pitch changing and periodical pitch changing slide rail is provided with a fixed disc sliding in a reciprocating manner and an inclined disc. The inclined disc is movably installed on the fixed disc and rotates on the fixed disc. One end of a pitch changing connecting rod is movably connected with the inclined disc while the other end of the pitch changing connecting rod is connected with an eccentric shaft at the root of a blade. The fixed disc is connected with a reciprocating pitch changing movement mechanism through the pitch changing connecting rod. The device provided by the invention is rapid in pitch changing, strong in anti-gust capacity, and simple in structure. As the self energy of the device is not consumed to wind and pitch changing, the annual average generating capacity is high, and the period of return on investment can be shortened.
Description
Technical field
The present invention relates to a kind of wind-driven generator, particularly relate to change oar and cycle vane change device that a kind of lower wind direction utilizes the wind speed rudder to become oar and can become the leeward direction wind-driven generator of oar the cycle.
Background technique
Wind-power electricity generation is an inexhaustible clean energy resource, MW class very perfect, but middle-size and small-size structure relative complex, and manufacture cost is high, and poor stability is difficult to popularize.Causing the high main cause of cost is to wind part and change oar part relative complex, and these two-part also are the multiple parts of fault.Although a kind of centrifugal variation paddle wind-driven generator technology maturation is arranged, need relative high revolution that centrifugal variation paddle power is provided, therefore be not suitable for doing large, and high revolution has injury to birds and insect, is unfavorable for environmental protection.Adopt the wind speed rudder can simplify pitch-controlled system.Lower wind direction design can simplify wind apparatus, but the leeward direction wind-driven generator produces vibration owing to tower shadow effect causes whole device, and is difficult for solving.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of change oar and cycle vane change device of leeward direction wind-driven generator is provided, solved because tower shadow effect causes the vibrative problem of whole wind-driven generator.
Technological scheme of the present invention is:
Change oar main shaft one end passes generator and blower fan main shaft is fixed on the wind-driven generator external frame, and the change oar main shaft the other end passes wheel hub and forms certain angle with becoming oar and cycle change oar slide rail; On change oar and the cycle change oar slide rail inactive order and the swash plate that reciprocatingly slides is installed, swash plate is movably arranged on the inactive order, and swash plate rotates in inactive order; Become oar connecting rod one end and swash plate and be flexibly connected, become the oar connecting rod the other end and be connected with the eccentric shaft of propeller shank; Inactive order connects back and forth change oar actuating mechanism by becoming the oar master connecting rod.
Described change oar main shaft one end is fixed by becoming oar main shaft fixed installation plug-in unit, is spline in the described change oar main shaft fixed installation plug-in unit.
Described generator and blower fan main shaft are hollow-core construction, and generator 21 usefulness shaft joints are connected on the blower fan main shaft.
Described eccentric shaft is positioned at a side of blade center line, forms bent axle; Described swash plate and blade center line up and down be not on same parallel lines; Described swash plate is fixedly mounted on the inactive order with bearing, becomes oar connecting rod both sides and is movably connected on swash plate and the eccentric shaft with bulb; Described change oar master connecting rod is forked type.
Described change oar actuating mechanism connects the wind speed rudder into an end of, wind speed rudder stock, and the other end of wind speed rudder stock is connected with wind speed rudder support arm by the wind speed rudderpost, and wind speed rudder support arm is connected on the change oar master connecting rod; Wind speed rudder arm shaft on the wind speed rudder stock connects the servo deceleration motor, and the servo deceleration motor is connected to by screw mandrel and becomes on the oar master connecting rod, and screw mandrel reciprocatingly slides in department takes gear motor.
The angle of described wind speed rudder stock is changed to 60 °, and the change vane angle of blade is 30 °, and wind speed rudder stock length is 3/5ths of blade length, and the ratio number of wind speed rudder stock power arm and resistance arm is 1:80.
Described change oar actuating mechanism into, comprise main air speed rudder and secondary wind speed rudder, secondary wind speed rudder stock length is less than main air speed rudder stock, the secondary wind speed area of rudder is less than main air speed rudder; Main air speed rudder is connected to an end of main air speed rudder stock, and the other end of main air speed rudder stock is connected with main air speed rudder support arm by main air speed rudderpost, and main air speed rudder support arm is connected to and becomes on the oar master connecting rod; Secondary wind speed rudder is connected on the secondary wind speed rudder stock, and the other end of secondary wind speed rudder stock is connected with secondary wind speed rudder support arm by secondary wind speed rudderpost, and secondary wind speed rudder stock is connected to by secondary wind speed rudder arm shaft and becomes on the oar master connecting rod; Main air speed rudder stock is connected on the secondary wind speed rudderpost by main air speed rudder arm shaft.
Advantage of the present invention is: become oar fast, anti-fitful wind ability is strong, simple in structure, because wind and change oar are not consumed self-energy, so average annual energy output is higher, can shorten the return on investment cycle.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the present invention becomes oar actuating mechanism one embodiment's schematic diagram.
Among the figure, 1, blade, 2, the wind speed rudder, 3, the wind speed rudder stock, 4, wind speed rudder arm shaft, 5, the wind speed rudderpost, 6, department takes gear motor, 7, screw mandrel, 8, wind speed rudder support arm, 9, become the oar master connecting rod, 10, inactive order, 11, swash plate, 12, become oar and cycle change oar slide rail, 13, become the oar connecting rod, 14, eccentric shaft, 15 Jiang Grains, 16, become the oar main shaft bearing, 17, become the oar main shaft, 18, blower fan main shaft, 19, the blower fan main shaft bearing, 20, become oar main shaft fixed installation plug-in unit, 21, generator, 22, secondary wind speed rudder, 23, secondary wind speed rudder stock, 24, secondary wind speed rudder arm shaft, 25, secondary wind speed rudderpost.
Embodiment
Embodiment 1
As shown in Figure 1, becoming oar main shaft 17 1 ends is fixedly mounted on and does not allow its rotation on wind-driven generator 21 external frames by becoming oar main shaft fixed installation plug-in unit 20, become oar main shaft 17 and pass hollow generator 21 and blower fan main shaft 18 oar main shaft bearing 16 is fixing not to allow it rock by becoming, become oar main shaft 17 and pass that propeller hub 15 is rear to become the certain angles of oar slide rail 12 formation with becoming oars with the cycle.Described blower fan main shaft 18 is hollow, and generator 21 also is hollow, and generator 21 usefulness shaft joints are connected on the blower fan main shaft 18.Be spline in the described change oar main shaft fixed installation plug-in unit 20, and become the oar main shaft and join and installs, become oar main shaft fixed installation plug-in unit 20 and be fixed on and change oar main shaft can not be rotated and can not vibration.
Swash plate 11 and inactive order 10 reciprocatingly slide at change oar and cycle change oar slide rail 12, swash plate 11 usefulness bearings are fixedly mounted on the inactive order 10, swash plate 11 rotates in inactive order 10, inactive order 10 can only become oar slide rail 12 and reciprocatingly slide and can not rotate becoming oar and cycle, and change oar connecting rod 13 both sides are movably connected on the eccentric shaft 14 of swash plate 11 and propeller shank with bulb.When swash plate 11 reciprocatingly slides, become oar connecting rod 13 and drive eccentric shaft 14 rotations, eccentric shaft 14 is positioned at a side of blade 1 center line, form bent axle, thereby the push-and-pull blade rotates and becomes oar, because swash plate 11 and blade center line up and down be not on same parallel lines, therefore same blade forwards that connecting rod draws when top to, connecting rod pushes away when following and forward to, above same blade forwards to and to forward following pitch to different, thus formation cycle change oar.The meaning that cycle becomes oar is that the tower shadow effect that solves the leeward direction wind-driven generator alleviates vibrations prolongation service life of fan.
The wind speed rudder provides power and control to become the oar amount for becoming oar, its principle is that the wind speed rudder is aerofoil profile, change position and the angle of wind speed rudder stock when wind speed is low by resistance, produce position and the angle that lift changes the wind speed rudder stock by the aerofoil profile rudder face when wind speed is high, different wind speed, the wind speed rudder has different positions and angle, and reaction is quick, antidetonation wind energy power is strong, the angle of wind speed rudder stock changes can reach 60 °, and the change vane angle of blade is 30 °, and wind speed rudder stock length is 3/5ths of blade length, the ratio number of wind speed rudder stock power arm and resistance arm is 1:80, therefore has certain self-locking property.One end of wind speed rudder stock 3 connects wind speed rudder 2, the other end of wind speed rudder stock 3 is connected with wind speed rudder support arm 8 by wind speed rudderpost 5, wind speed rudder support arm 8 is connected to and becomes on the oar master connecting rod 9, become oar master connecting rod 9 and be connected to inactive order 10 1 ends, swash plate 11 together rotates with eccentric shaft wheel hub, blade, and inactive order and swash plate one coexist to become on oar and the cycle change oar slide rail and reciprocatingly slide; Wind speed rudder arm shaft 4 on the wind speed rudder stock 3 connects servo deceleration motor 6, and servo deceleration motor 6 is connected to by screw mandrel 7 and becomes on the oar master connecting rod 9, and screw mandrel 7 reciprocatingly slides in department takes gear motor 6, thereby reciprocatingly slides by forked type master connecting rod 9 push-and-pull inactive orders 10.
When wind speed reaches some strength, just can blow wind speed rudder 2 moves to the left, wind speed rudder arm shaft 4 pulling departments take gear motor 6, screw mandrel 7, become oar master connecting rod 9, inactive order 10, swash plate 11, become oar connecting rod 13, eccentric shaft 14 moves to the left, because eccentric shaft 14 and blade 1 be not on same center line, connecting rod 13, eccentric shaft 14 just can spur blade 1 and rotate formation change oar.The effect that department takes gear motor 6 is; When surpassing survival wind speed, starting department takes gear motor 6 pulling screw mandrels 7, becomes oar master connecting rod 9, inactive order 10, further become oar guarantee blower fan safety.
Embodiment 2
As shown in Figure 2, become the oar actuating mechanism into, comprise main air speed rudder and secondary wind speed rudder, secondary wind speed rudder stock length is less than main air speed rudder stock, the secondary wind speed area of rudder is less than main air speed rudder; Main air speed rudder is connected to an end of main air speed rudder stock, and the other end of main air speed rudder stock is connected with main air speed rudder support arm by main air speed rudderpost, and main air speed rudder support arm is connected to and becomes on the oar master connecting rod; Secondary wind speed rudder 22 is connected on the secondary wind speed rudder stock 23, and the other end of secondary wind speed rudder stock 23 is connected with secondary wind speed rudder support arm by secondary wind speed rudderpost 25, and secondary wind speed rudder stock 23 is connected to by secondary wind speed rudder arm shaft 24 and becomes on the oar master connecting rod 9; Main air speed rudder stock is connected on the secondary wind speed rudderpost 25 by main air speed rudder arm shaft.Only secondary wind speed rudder just begins starting after main air speed rudder reaches maximum angle, and when surpassing survival wind speed, secondary wind speed rudder is moved to the left, and secondary wind speed rudder arm shaft 24 pullings become oar master connecting rod 9 and further become oar; Other structure is applicable to wind-driven generator below 30 kilowatts with embodiment 1.
Generator among the present invention also can change air compressor into and produce pressurized air, and pressurized air can drive other pneumatic tools such as water elevator at a distance; Also the generator among the present invention can be changed into refrigerator or water making machine, from air, fetch water.
Claims (7)
1. the change oar of leeward direction wind-driven generator and cycle vane change device, it is characterized in that becoming that oar main shaft one end passes generator and blower fan main shaft is fixed on the wind-driven generator external frame, become the oar main shaft the other end and pass wheel hub and form certain angle with becoming oar with cycle change oar slide rail; On change oar and the cycle change oar slide rail inactive order and the swash plate that reciprocatingly slides is installed, swash plate is movably arranged on the inactive order, and swash plate rotates in inactive order; Become oar connecting rod one end and swash plate and be flexibly connected, become the oar connecting rod the other end and be connected with the eccentric shaft of propeller shank; Inactive order connects back and forth change oar actuating mechanism by becoming the oar master connecting rod.
2. the change oar of leeward direction wind-driven generator according to claim 1 and cycle vane change device is characterized in that described change oar main shaft one end fixedly mounts plug-in unit by change oar main shaft and fixes, and are splines in the described change oar main shaft fixed installation plug-in unit.
3. the change oar of leeward direction wind-driven generator according to claim 1 and cycle vane change device is characterized in that described generator and blower fan main shaft are hollow-core construction, and generator is connected on the blower fan main shaft with shaft joint.
4. the change oar of leeward direction wind-driven generator according to claim 1 and cycle vane change device is characterized in that described eccentric shaft is positioned at a side of blade center line, form bent axle; Described swash plate and blade center line up and down be not on same parallel lines; Described swash plate is fixedly mounted on the inactive order with bearing, becomes oar connecting rod both sides and is movably connected on swash plate and the eccentric shaft with bulb; Described change oar master connecting rod is forked type.
5. the change oar of leeward direction wind-driven generator according to claim 1 and cycle vane change device, it is characterized in that described change oar actuating mechanism into, one end of wind speed rudder stock connects the wind speed rudder, the other end of wind speed rudder stock is connected with wind speed rudder support arm by the wind speed rudderpost, and wind speed rudder support arm is connected to and becomes on the oar master connecting rod; Wind speed rudder arm shaft on the wind speed rudder stock connects the servo deceleration motor, and the servo deceleration motor is connected to by screw mandrel and becomes on the oar master connecting rod, and screw mandrel reciprocatingly slides in department takes gear motor.
6. the change oar of leeward direction wind-driven generator according to claim 5 and cycle vane change device, the angle that it is characterized in that described wind speed rudder stock is changed to 60 °, the change vane angle of blade is 30 °, wind speed rudder stock length is 3/5ths of blade length, and the ratio number of wind speed rudder stock power arm and resistance arm is 1:80.
7. the change oar of leeward direction wind-driven generator according to claim 1 and cycle vane change device, it is characterized in that described change oar actuating mechanism into, comprise main air speed rudder and secondary wind speed rudder, secondary wind speed rudder stock length is less than main air speed rudder stock, and the secondary wind speed area of rudder is less than main air speed rudder; Main air speed rudder is connected to an end of main air speed rudder stock, and the other end of main air speed rudder stock is connected with main air speed rudder support arm by main air speed rudderpost, and main air speed rudder support arm is connected to and becomes on the oar master connecting rod; Secondary wind speed rudder is connected on the secondary wind speed rudder stock, and the other end of secondary wind speed rudder stock is connected with secondary wind speed rudder support arm by secondary wind speed rudderpost, and secondary wind speed rudder stock is connected to by secondary wind speed rudder arm shaft and becomes on the oar master connecting rod; Main air speed rudder stock is connected on the secondary wind speed rudderpost by main air speed rudder arm shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502440.8A CN102996344B (en) | 2012-11-30 | 2012-11-30 | Pitch changing and periodical pitch changing device of downwind wind driven generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210502440.8A CN102996344B (en) | 2012-11-30 | 2012-11-30 | Pitch changing and periodical pitch changing device of downwind wind driven generator |
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| CN102996344A true CN102996344A (en) | 2013-03-27 |
| CN102996344B CN102996344B (en) | 2014-12-03 |
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| CN201210502440.8A Active CN102996344B (en) | 2012-11-30 | 2012-11-30 | Pitch changing and periodical pitch changing device of downwind wind driven generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352801A (en) * | 2013-07-09 | 2013-10-16 | 张成革 | Centrifugal variable-pitch wind driven generator |
| CN113606086A (en) * | 2021-08-31 | 2021-11-05 | 中国科学院工程热物理研究所 | Periodic propeller change control device and method for wind turbine generator |
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| US4183715A (en) * | 1978-02-01 | 1980-01-15 | First National Bank Of Lubbock | Adjustable vane windmills |
| US4443154A (en) * | 1979-08-27 | 1984-04-17 | Randolph Arthur J | Windmill tower shadow eliminator |
| JPH04101074A (en) * | 1990-08-14 | 1992-04-02 | Mitsubishi Heavy Ind Ltd | Windmill |
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| CN201265487Y (en) * | 2008-05-29 | 2009-07-01 | 青岛安华新能源开发有限公司 | Flying bar synchronous variable-pitch mechanism |
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| CN202073706U (en) * | 2011-04-07 | 2011-12-14 | 水利部牧区水利科学研究所 | Control device for increasing starting performance of wind turbine |
| CN203009162U (en) * | 2012-11-30 | 2013-06-19 | 张成革 | Pitch control and periodical pitch control device for downwind wind-driven generator |
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2012
- 2012-11-30 CN CN201210502440.8A patent/CN102996344B/en active Active
Patent Citations (10)
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|---|---|---|---|---|
| US4084921A (en) * | 1977-04-05 | 1978-04-18 | Norz Gerald R | Windmill with cyclically feathering blades |
| US4183715A (en) * | 1978-02-01 | 1980-01-15 | First National Bank Of Lubbock | Adjustable vane windmills |
| US4443154A (en) * | 1979-08-27 | 1984-04-17 | Randolph Arthur J | Windmill tower shadow eliminator |
| JPH04101074A (en) * | 1990-08-14 | 1992-04-02 | Mitsubishi Heavy Ind Ltd | Windmill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103352801A (en) * | 2013-07-09 | 2013-10-16 | 张成革 | Centrifugal variable-pitch wind driven generator |
| CN103352801B (en) * | 2013-07-09 | 2016-01-27 | 张成革 | centrifugal variable-pitch wind driven generator |
| CN113606086A (en) * | 2021-08-31 | 2021-11-05 | 中国科学院工程热物理研究所 | Periodic propeller change control device and method for wind turbine generator |
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| CN102996344B (en) | 2014-12-03 |
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Owner name: PANJIN POWER SUPPLY COMPANY, STATE GRID LIAONING E Effective date: 20141203 |
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Inventor after: Zhang Chengge Inventor after: Zhang Zhipeng Inventor after: Yuan Ting Inventor after: Sun Rui Inventor after: Zhang Jing Inventor after: Yang Hongchi Inventor after: Sun Lin Inventor before: Zhang Chengge Inventor before: Zhang Zhipeng |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG CHENGGE ZHANG ZHIPENG TO: ZHANG CHENGGE ZHANG ZHIPENG YUAN TING SUN RUI ZHANG JING YANG HONGCHI SUN LIN |
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Effective date of registration: 20141203 Address after: Heping District, Liaoning province 110171 Hunhe Station of Shenyang City, No. 21 West Street Patentee after: Zhang Chengge Patentee after: Panjin Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Address before: Heping District, Liaoning province 110171 Hunhe Station of Shenyang City, No. 21 West Street Patentee before: Zhang Chengge |