CN104912742A - Vertical axis wind turbine with protecting device capable of adjusting wind wheel radius - Google Patents
Vertical axis wind turbine with protecting device capable of adjusting wind wheel radius Download PDFInfo
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- CN104912742A CN104912742A CN201510271052.7A CN201510271052A CN104912742A CN 104912742 A CN104912742 A CN 104912742A CN 201510271052 A CN201510271052 A CN 201510271052A CN 104912742 A CN104912742 A CN 104912742A
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- nut
- screw mandrel
- vertical axis
- main shaft
- sliding plate
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The invention aims at providing a vertical axis wind turbine with a protecting device capable of adjusting the wind wheel radius. The vertical axis wind turbine is mainly composed of a transmission lead screw, a lead screw nut, blades, a support, a servo motor, a main shaft and an electric generator. The middle end of a blade support is hinged to a supporting rod. The other end of the supporting rod is hinged to a sliding disc. The sliding disc and the nut are connected through a safety pin. The transmission lead screw rotates to enable the nut to drive the sliding disc to move up and down, and therefore the supporting rod is pushed to push the support to be unfolded and folded. The servo motor is installed in the middle of the main shaft, and the lead screw is driven by a coupler is rotate. When the wind speed suddenly changes and affects fan working safety, a centrifugal ball rotates at high speed to generate centrifugal force to pull the safety pin, the sliding disc is disengaged from the nut, the support is folded, and then the wind wheel radius is rapidly decreased, and fan accidents are avoided. The problem that the windward area of common fans cannot be adjusted is solved, the starting capacity of the vertical axis wind turbine is improved, the electric generation efficiency of the vertical axis wind turbine at different wind speeds is improved, and the safety of the wind turbine in the strong wind environment is improved.
Description
Technical field
What the present invention relates to is a kind of generator, specifically wind-driven generator.
Background technique
Industrial development makes the day by day deficient of the fossil fuels such as oil and environmental pollution problem that the new century is more and more serious, and the clean reproducible energy of exploitation becomes the emphasis of current world wide research, and wind-power electricity generation has become the hot technology received much concern.Vertical shaft wind machine technology wherein receives publicity by force because of its environmental protection, self-startup ability.Startup ability, operating range and wind energy utilization are crucial usually used as the judge of vertical shaft wind mill performance.Large quantity research shows: large solidity vertical axis windmill is suitable for low tip-speed ratio working environment, is mainly used in water lift, irrigation etc.; And little solidity vertical axis windmill work height preferably tip-speed ratio scope, multiplex come wind-power electricity generation.Visible change solidity parameter plays key effect for the overall performance improving vertical axis windmill.
Patent " type of extension the vertical axis aerogenerator " (patent No.: 201210081433.5) oar form blade is determined in employing; expansion and the gathering of blade spoke and dunnage is realized by the four groups of screw mandrels being arranged on base; but reduce fan efficiency because base member too much adds blower fan rotary inertia, and lack dangerous wind speed protective gear.Patent " a kind of vertical axis windmill of the frontal area adjustable " (patent No.: 201410055338) adopt scissors fork and rope mechanism can regulate wind wheel radius, but due to the flexibility of rope, wind wheel radius is regulated to occur not prompt enough and accurate problem.
Summary of the invention
The object of the present invention is to provide a kind of adjustable wind wheel radius vertical axis windmill with protective gear reducing blower fan accident and occur.
The object of the present invention is achieved like this:
A kind of adjustable wind wheel radius vertical axis windmill with protective gear of the present invention, is characterized in that: comprise main shaft, pylon, generator, blade rotary unit, the main shaft with hollow-core construction is arranged on pylon by bearing, and generator is arranged in pylon, and the underpart of main shaft is connected with generator, arranges screw mandrel and install the seat of honour in main shaft, lower seat installed by screw mandrel, actuating motor, feed screw nut's structure, the screw mandrel of actuating motor connection wire rod nut structure, screw mandrel is supported on screw mandrel and installs on the seat of honour and the lower seat of screw mandrel installation, and with screw mandrel, the seat of honour and screw mandrel are installed lower seat rotatable engagement is installed, screw mandrel is installed between the seat of honour and the nut of feed screw nut's structure and is arranged screw mandrel spring, and blade rotary unit comprises blade, blade rack, spindle carrier, strut, thin bar, centrifugal globe, rope, baffle plate spring, safety pin, sliding plate, blades installation is on blade rack, blade rack is connected by spindle carrier with main shaft, and sliding plate is arranged on outside nut, and the outer end of sliding plate arranges baffle plate, a safety pin part is positioned in the groove of nut, another part is positioned in sliding plate, arranges baffle plate spring between safety pin and baffle plate, and centrifugal globe is connected with safety pin by rope, centrifugal globe by thin bar and strut hinged, strut and sliding plate hinged.
The present invention can also comprise:
1, described blade rotary unit comprises three groups, and three groups of blade rotary unit circumferencial directions are evenly arranged.
2, when wind speed raises, centrifugal globe rotating speed improves thereupon, thus centrifugal globe moves safety pin disengaging nut by rope band.
Advantage of the present invention is: a kind of adjustable wind wheel radius vertical axis windmill with protective gear that the present invention proposes; adopt vane propeller-changing apart from installing; wind wheel radius size (wind-exposuring area) is controlled according to wind speed size; thus realize the aeroperformance raising of vertical axis windmill under different wind speed; substantially increase the operating range of wind energy conversion system; and the effect of protection blower fan can be played under dangerous wind speed, prevent blower fan accident.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention;
Fig. 2 is section plan of the present invention;
Fig. 3 is safety protection device structural representation of the present invention;
Fig. 4 is the sectional view at safety pin place.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 4, generator 22 is arranged on the base portion at pylon 23, and pylon 23 is fixing by deep floor 24 and the earth; Main shaft 4 is linked by key with the output shaft of generator 22, and main shaft 4 outer ring is coordinated with pylon 23 inner ring by bearing 20; Blade 1 is arranged in blade rack 2, and blade 1 and pitch motor 7 output shaft consolidation can rotate about the axis; Support 3 two ends respectively with main shaft 4 and blade rack 2 hinged, hinged with strut 6 in the middle part of support 5; Low section of strut 6 is hinged with sliding plate 13; Feed screw nut 16 is arranged on screw mandrel 17, and screw mandrel 17 rotates and feed screw nut 16 is moved up and down, and drives sliding plate 13 to move up and down by safety pin 15, promotes strut 6 and drives support 5 draw in or launch.
Composition graphs 2,3,4, screw mandrel 17 two ends install the seat of honour 11 by screw mandrel and the lower seat 18 of screw mandrel installation supports, and bearings at both ends coordinates rotatable; Screw mandrel 17 end is connected with coupling 19, and actuating motor 21 output shaft is connected with coupling 19, and actuating motor 21 drives screw mandrel 17 to rotate by coupling 19; Centrifugal globe 9 is hinged by thin bar 8 and strut 6, and centrifugal globe 9 is connected with safety pin 15 by cord 10, and safety pin 15 is connected with baffle plate 25 by spring 14, and baffle plate 25 and sliding plate 13 are fixed by screw; General work situation, spring 14 withstands safety pin 15 makes sliding plate 13 and nut 16 be connected, and the too fast centrifugal globe 9 of wind speed produces High Rotation Speed centrifugal force and pulls cord 10 to drive safety pin 15 to depart from nut 16; Sliding plate 13 is installed the seat of honour 11 by spring 12 and screw mandrel and is connected, and release elastic force can overcome blade self centrifugal force can make sliding plate 13 hightail nut 16 and reduce rigid impulse.
The present invention is primarily of compositions such as drive lead screw, nut, blade, support, actuating motor, main shaft, generator, centrifugal globe protective gears, wherein blade rack middle-end and strut hinged, the other end and the sliding plate of strut are hinged, and sliding plate connects safety pin with in the middle of nut; Drive lead screw rotates and makes nut drive sliding plate to move up and down, thus promotes strut promotion support expansion and draw in, thus changes wind wheel wind-exposuring area.Actuating motor is arranged in the middle part of main shaft, drives screw mandrel to rotate by shaft coupling transmission.When wind speed mutation affects blower fan work safety, centrifugal globe High Rotation Speed produces centrifugal force and pulls safety pin, and sliding plate and nut are departed from, and support draws in thus reduces rapidly wind wheel radius and plays safety protection effect.
Its working principle is as follows: when wind speed is less, driven by servomotor screw mandrel rotates, feed screw nut moves up along axis, effect due to safety pin drives sliding plate to move up together, strut and sliding plate hinged thus promote fan supporter and outwards stretch, wind wheel radius becomes large, and wind energy conversion system can be operated in comparatively suitable tip-speed ratio.Increase generating efficiency.Along with the increase of wind speed, actuating motor can according to wind speed size adjustment feed screw nut position, thus regulate wind wheel radius to adapt to different wind speed environments.Under high wind sudden change unsafe conditions, be arranged on centrifugal globe on strut and pull safety pin with blower fan High Rotation Speed generation centrifugal force, sliding plate and nut are departed from, and support draws in and reduces wind wheel radius rapidly thus prevent blower fan accident.
The present invention can also comprise some features like this:
1, connected by safety pin between sliding plate with feed screw nut, under dangerous wind speed, the centrifugal force that centrifugal globe produces extracts safety pin makes sliding plate and feed screw nut depart from.
2, sliding plate and strut hinged, can increase on sliding plate and support hinged quantity, increase blade quantity, change further the solidity of wind energy conversion system.
3, sliding plate is installed the seat of honour by spring and screw mandrel and is connected, and discharges elastic force can overcome blade self centrifugal force and the rigid impulse that can reduce strut when sliding plate and nut depart from.
4, lead screw transmission mechanism is by electric-machine directly-driven, and is arranged in main shaft, reduces complete machine rotary inertia.
5, individual blade has corresponding change oar driven by servomotor to become oar, can improve wind energy utilization by becoming oar motion.
6, under survival wind speed safety pin by spring top in the middle of feed screw nut and sliding plate, play connect sliding plate and feed screw nut effect.
With the adjustable wind wheel radius vertical axis windmill of protective gear, primarily of compositions such as drive lead screw, nut, blade, support, actuating motor, main shaft, generator, centrifugal globe protective gears, wherein blade rack middle-end and strut hinged, the other end and the sliding plate of strut are hinged, and sliding plate connects safety pin with in the middle of nut; Drive lead screw rotates and makes nut drive sliding plate to move up and down, thus promotes strut promotion support expansion and draw in, thus changes wind wheel wind-exposuring area.Actuating motor is arranged in the middle part of main shaft, drives screw mandrel to rotate by coupling.When wind speed mutation affects blower fan work safety, centrifugal globe High Rotation Speed produces centrifugal force and pulls safety pin, and sliding plate and nut are departed from, and support draws in thus reduces rapidly wind wheel radius and plays safety protection effect.
Actuating motor drives screw mandrel to rotate according to wind speed size by coupling, changes wind wheel radius thus realizes the adjustment of wind wheel wind-exposuring area; The corresponding best wind wheel radius of a certain wind speed.
When wind speed mutation affects blower fan work safety, be arranged on centrifugal globe on strut and pull safety pin with blower fan High Rotation Speed generation centrifugal force, sliding plate and nut are departed from, and the spring be connected with sliding plate discharges elastic force makes support draw in rapidly, thus reduces wind wheel radius rapidly thus prevent blower fan accident.
Vertical axis windmill structure is symmetrical about main shaft, and a lead screw transmission mechanism is arranged in main shaft, and actuating motor drives screw mandrel to rotate by coupling, and nut and sliding plate move up and down along axis in main shaft.
Blade is that feather is installed, and change oar actuating motor is arranged on blade rack is with moving vane to do the motion of change oar.
In general work environment, safety pin withstands nut by spring, and sliding plate connects with nut and do not depart from, and dangerous wind speed lower sliding disc and nut just depart from.
By increasing or reducing wind-exposuring area, the work of vertical axis windmill under different wind speed environments can be increased and be suitable for ability.
Claims (3)
1. the adjustable wind wheel radius vertical axis windmill with protective gear, is characterized in that: comprise main shaft, pylon, generator, blade rotary unit, the main shaft with hollow-core construction is arranged on pylon by bearing, and generator is arranged in pylon, and the underpart of main shaft is connected with generator, arranges screw mandrel and install the seat of honour in main shaft, lower seat installed by screw mandrel, actuating motor, feed screw nut's structure, the screw mandrel of actuating motor connection wire rod nut structure, screw mandrel is supported on screw mandrel and installs on the seat of honour and the lower seat of screw mandrel installation, and with screw mandrel, the seat of honour and screw mandrel are installed lower seat rotatable engagement is installed, screw mandrel is installed between the seat of honour and the nut of feed screw nut's structure and is arranged screw mandrel spring, and blade rotary unit comprises blade, blade rack, spindle carrier, strut, thin bar, centrifugal globe, rope, baffle plate spring, safety pin, sliding plate, blades installation is on blade rack, blade rack is connected by spindle carrier with main shaft, and sliding plate is arranged on outside nut, and the outer end of sliding plate arranges baffle plate, a safety pin part is positioned in the groove of nut, another part is positioned in sliding plate, arranges baffle plate spring between safety pin and baffle plate, and centrifugal globe is connected with safety pin by rope, centrifugal globe by thin bar and strut hinged, strut and sliding plate hinged.
2. a kind of adjustable wind wheel radius vertical axis windmill with protective gear according to claim 1, it is characterized in that: described blade rotary unit comprises three groups, three groups of blade rotary unit circumferencial directions are evenly arranged.
3. a kind of adjustable wind wheel radius vertical axis windmill with protective gear according to claim 1 and 2, is characterized in that: when wind speed raises, centrifugal globe rotating speed improves thereupon, thus centrifugal globe moves safety pin disengaging nut by rope band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271052.7A CN104912742A (en) | 2015-05-25 | 2015-05-25 | Vertical axis wind turbine with protecting device capable of adjusting wind wheel radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271052.7A CN104912742A (en) | 2015-05-25 | 2015-05-25 | Vertical axis wind turbine with protecting device capable of adjusting wind wheel radius |
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| CN104912742A true CN104912742A (en) | 2015-09-16 |
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| CN201510271052.7A Pending CN104912742A (en) | 2015-05-25 | 2015-05-25 | Vertical axis wind turbine with protecting device capable of adjusting wind wheel radius |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105034A (en) * | 2017-12-19 | 2018-06-01 | 南通大学 | Suitable for the vertical axis windmill of typhoon |
| CN108180107A (en) * | 2017-12-29 | 2018-06-19 | 东北大学 | A kind of wind-driven generator of harp shape |
| CN108286501A (en) * | 2018-03-23 | 2018-07-17 | 操辉 | Vertical shaft blade stress balance wind-driven generator |
| CN108331836A (en) * | 2018-01-23 | 2018-07-27 | 哈尔滨工程大学 | A kind of magnetic suspension separation transmission shaft structure and vertical axis aerogenerator group |
| CN108488034A (en) * | 2018-03-28 | 2018-09-04 | 邵阳学院 | Radius of turn adjustable vertical shaft type aerogenerator automatically |
| CN108506161A (en) * | 2018-03-21 | 2018-09-07 | 四川大学 | Vertical axis rotor and wind-driven generator |
| CN108730124A (en) * | 2018-06-15 | 2018-11-02 | 陈拓 | A kind of wind power generation system |
| CN108843513A (en) * | 2018-08-08 | 2018-11-20 | 尉立 | Stepless speed regulation wind generator system |
| CN108916572A (en) * | 2018-07-06 | 2018-11-30 | 合肥格骄电子科技有限公司 | A kind of open air Moveable foldable camera stand |
| CN108953057A (en) * | 2018-08-09 | 2018-12-07 | 石山霞 | A kind of vertical axis aerogenerator |
| CN109578201A (en) * | 2018-11-29 | 2019-04-05 | 陈二东 | A kind of wind-driven generator with wind-shielding function |
| CN113057834A (en) * | 2021-04-21 | 2021-07-02 | 西南医科大学附属医院 | Nursing car dispenses with refining categorised function of storing |
| CN113107775A (en) * | 2021-04-14 | 2021-07-13 | 合肥博斯维尔能源科技有限公司 | New energy-based wind power generation device for two sides of expressway |
| EP3951162A1 (en) | 2020-08-04 | 2022-02-09 | Alessio Farina | A wind or water turbine with an active and progressive regulation of the radius of action of the blades and the variation of the automatic angle of incidence |
| CN114333556A (en) * | 2021-12-29 | 2022-04-12 | 上海应用技术大学 | Enterprise marketing announcement device |
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| US20070014663A1 (en) * | 2004-10-06 | 2007-01-18 | Chuy-Nan Chio | Sail Wing Type Windmill |
| EP2065594A1 (en) * | 2006-09-07 | 2009-06-03 | Buktukov, Nikolay | Wind power plant |
| CN102352818A (en) * | 2011-11-11 | 2012-02-15 | 南通纺织职业技术学院 | Intelligent reducing self-starting vertical axis wind power generation device |
| CN102705181A (en) * | 2012-05-31 | 2012-10-03 | 上海大学 | Starting device for vertical axis wind turbine (VAWT) |
| CN104481810A (en) * | 2014-12-03 | 2015-04-01 | 山东大学苏州研究院 | Automatically stretching type vertical-axis wind driven generator |
| CN204677370U (en) * | 2015-05-25 | 2015-09-30 | 哈尔滨工程大学 | A kind of adjustable wind wheel radius vertical axis windmill with protective gear |
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- 2015-05-25 CN CN201510271052.7A patent/CN104912742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070014663A1 (en) * | 2004-10-06 | 2007-01-18 | Chuy-Nan Chio | Sail Wing Type Windmill |
| EP2065594A1 (en) * | 2006-09-07 | 2009-06-03 | Buktukov, Nikolay | Wind power plant |
| CN102352818A (en) * | 2011-11-11 | 2012-02-15 | 南通纺织职业技术学院 | Intelligent reducing self-starting vertical axis wind power generation device |
| CN102705181A (en) * | 2012-05-31 | 2012-10-03 | 上海大学 | Starting device for vertical axis wind turbine (VAWT) |
| CN104481810A (en) * | 2014-12-03 | 2015-04-01 | 山东大学苏州研究院 | Automatically stretching type vertical-axis wind driven generator |
| CN204677370U (en) * | 2015-05-25 | 2015-09-30 | 哈尔滨工程大学 | A kind of adjustable wind wheel radius vertical axis windmill with protective gear |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105034A (en) * | 2017-12-19 | 2018-06-01 | 南通大学 | Suitable for the vertical axis windmill of typhoon |
| CN108105034B (en) * | 2017-12-19 | 2019-05-31 | 南通大学 | Vertical axis windmill suitable for typhoon |
| CN108180107B (en) * | 2017-12-29 | 2019-04-30 | 东北大学 | A kind of wind-driven generator of harp shape |
| CN108180107A (en) * | 2017-12-29 | 2018-06-19 | 东北大学 | A kind of wind-driven generator of harp shape |
| CN108331836A (en) * | 2018-01-23 | 2018-07-27 | 哈尔滨工程大学 | A kind of magnetic suspension separation transmission shaft structure and vertical axis aerogenerator group |
| CN108506161A (en) * | 2018-03-21 | 2018-09-07 | 四川大学 | Vertical axis rotor and wind-driven generator |
| CN108286501A (en) * | 2018-03-23 | 2018-07-17 | 操辉 | Vertical shaft blade stress balance wind-driven generator |
| CN108488034A (en) * | 2018-03-28 | 2018-09-04 | 邵阳学院 | Radius of turn adjustable vertical shaft type aerogenerator automatically |
| CN108730124A (en) * | 2018-06-15 | 2018-11-02 | 陈拓 | A kind of wind power generation system |
| CN108916572A (en) * | 2018-07-06 | 2018-11-30 | 合肥格骄电子科技有限公司 | A kind of open air Moveable foldable camera stand |
| CN108843513A (en) * | 2018-08-08 | 2018-11-20 | 尉立 | Stepless speed regulation wind generator system |
| CN108843513B (en) * | 2018-08-08 | 2023-12-12 | 国网浙江省电力有限公司台州市椒江区供电公司 | Stepless speed regulation wind power generation system |
| CN108953057A (en) * | 2018-08-09 | 2018-12-07 | 石山霞 | A kind of vertical axis aerogenerator |
| CN109578201A (en) * | 2018-11-29 | 2019-04-05 | 陈二东 | A kind of wind-driven generator with wind-shielding function |
| EP3951162A1 (en) | 2020-08-04 | 2022-02-09 | Alessio Farina | A wind or water turbine with an active and progressive regulation of the radius of action of the blades and the variation of the automatic angle of incidence |
| CN113107775A (en) * | 2021-04-14 | 2021-07-13 | 合肥博斯维尔能源科技有限公司 | New energy-based wind power generation device for two sides of expressway |
| CN113057834A (en) * | 2021-04-21 | 2021-07-02 | 西南医科大学附属医院 | Nursing car dispenses with refining categorised function of storing |
| CN113057834B (en) * | 2021-04-21 | 2022-08-26 | 西南医科大学附属医院 | Nursing car dispenses with refining categorised function of storing |
| CN114333556A (en) * | 2021-12-29 | 2022-04-12 | 上海应用技术大学 | Enterprise marketing announcement device |
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Application publication date: 20150916 |