CN201255077Y - Vertical shaft half-moving and half-fixing combination type blade windmill - Google Patents
Vertical shaft half-moving and half-fixing combination type blade windmill Download PDFInfo
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- CN201255077Y CN201255077Y CNU2008200911372U CN200820091137U CN201255077Y CN 201255077 Y CN201255077 Y CN 201255077Y CN U2008200911372 U CNU2008200911372 U CN U2008200911372U CN 200820091137 U CN200820091137 U CN 200820091137U CN 201255077 Y CN201255077 Y CN 201255077Y
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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 utility model provides a windmill with vertical axis semiactive and semifixed combined blades, which relates to a windmill. The utility model has the goal of solving the problems of the existing resisting force windmill of low rotating speed, low wind power utilization coefficient and solving the problems of the elevating force windmill of low starting moment and difficult self starting at a low wind speed. Both ends of a blade fixing axis are fixedly connected with a fixing axis end cover; the upper end and the lower end of a blade movable axis are respectively arranged in a rolling bearing; the blade fixing axis and the blade movable axis form a rotating pair; fixed blades are connected with the blade fixing axis; and movable blades are connected with the blade movable axis. The movable blades of the windmill rotate around the blade movable axis, and are in an open and closed state with the fixed blades. When the movable blades and the fixed blades are in the closed state, the movable blades and the fixed blades form an integral wing-shaped blade. When the windmill is started or the wind speed is low, the rotating speed of the windmill is low, air resisting force is suitable for being used to apply work, and the defects of the elevating force windmill of low starting capability and low wind power utilization coefficient at the low wind speed are overcome.
Description
Technical field
The utility model relates to a kind of windmill.
Background technique
Owing to wind energy conversion system (windmill) is the wind wheel that the effect of wind-engaging power is rotated with the critical piece that wind energy changes mechanical energy into, therefore, wind energy conversion system can be divided into two big classes substantially according to the structure of wind wheel and the position in air-flow thereof: a class is a horizontal-shaft wind turbine; One class is a vertical axis windmill.Horizontal-shaft wind turbine is that development is maximum at present, and modal a kind of wind energy conversion system also is the most ripe a kind of wind energy conversion system of technology.The wind wheel of horizontal-shaft wind turbine is around a horizontal rotational shaft, and during work, the plane of rotation of wind wheel is vertical with wind direction.Blade on the wind wheel is radially settled, and is perpendicular with running shaft, and with the plane of rotation of wind wheel φ (established angle) at angle.Although horizontal-shaft wind turbine is most widely used, also have some technical problems, as maintenance difficult, must possess wind apparatus, manufacture cost high.
Vertical axis windmill is another kind of wind energy conversion system, can be divided into two primary categories: a class is to utilize aerodynamical resistance work done (resistance type), and typical structure is a Savonius formula wind wheel.It is made up of the half-cylindrical blade of two axis misalignment, and its advantage is that detent torque is bigger.Shortcoming is that rotating speed is slow, and wind energy utilization is lower, is used for generating and lacks competitiveness; Another kind of is the lift work done (lift-type) that utilizes aerofoil profile, and most typical is Darrieus type wind energy conversion system.This vertical axis windmill structure is higher than the utilization ratio of wind energy of Savonius formula wind wheel, can move by high rotating speed, but its starting torque is less the general very difficult self-starting that realizes under little wind speed.
The model utility content
The purpose of this utility model is that the rotating speed of existing for solving " resistance type " windmill existence is slow, and wind energy utilization is lower, is used for generating and lacks competitiveness; The starting torque that " lift-type " windmill exists is less, generally is difficult to realize the problem of self-starting under little wind speed, and the windmill of a kind of vertical shaft half movable semifixed combined blade is provided.The utility model comprises central shaft, upper flange plate, lower flange, base, screw rod, set screw, the upper flange bearing, the lower flange bearing, bearing support and two to six combined blade devices, the lower end of central shaft is arranged in the base and by set screw central shaft and base is connected as one, the stage casing of central shaft is provided with shoulder, upper flange bearing and lower flange bearing all are arranged in the bearing support and together with bearing sleeve and are located on the central shaft, the lower flange bearing is arranged on the top of the shoulder of central shaft, upper flange plate is arranged on the upside of bearing support, lower flange is arranged on the downside of bearing support, be connected with screw rod between upper flange plate and the lower flange, two to six combined blade devices evenly are fixed on the outer side surface of upper flange plate and lower flange; Each combined blade device is by stator blade, two stationary axle end caps, moving vane, framework, the vanes fixed axle, the blade movable axis, following bent plate, last bent plate, two rolling bearings, two bearing (ball) covers are formed, following bent plate and last bent plate all are fixed on the inner side surface of framework, following bent plate is fixedlyed connected with lower flange, last bent plate is fixedlyed connected with upper flange plate, two stationary axle end caps are separately fixed at the upside and the downside of framework outer end, the closed end of two stationary axle end caps respectively is fixed with a bearing (ball) cover, be provided with a rolling bearing in each stationary axle end cap, all fixedly connected with a stationary axle end cap in the two ends of vanes fixed axle, the two ends up and down of blade movable axis are separately positioned in the rolling bearing, vanes fixed axle and blade movable axis form revolute, stator blade is connected with the vanes fixed axle, and moving vane is connected with the blade movable axis.
Vertical axis windmill in the utility model can be realized self-starting under less wind speed.And higher wind energy utilization is arranged.Moving vane can close with the stator blade switching around the rotation of blade movable axis.When moving vane and stator blade closure, become the airfoil fan of an integral body.When windmill starts or wind speed hour, the rotating speed of windmill is lower, is fit to the resistance of air acting, its advantage is to have remedied lift-type to start ability, deficiency that wind energy utilization is low when low wind speed; And after the windmill rotating speed reached a certain value, resistance type changed lift-type into, made rotating speed further be increased to rating value, thus remedied resistance type windmill rotating ratio little, be difficult to realize powerful deficiency.The utility model can be realized self-starting under lower wind speed, drive generator for electricity generation, realize utilizing wind energy to greatest extent, and windmill is cheap, can make large, medium and small type wind energy conversion system.Because above these technical characteristicss, cause to the utlity model has higher wind energy transformation efficient, with the equal service condition of other types windmill under, when obtaining equal kinetic energy, the utility model can smaller volume, and the reduction that can bring manufacture cost has thus also made things convenient for and installed and maintenance.
Description of drawings
Fig. 1 is the plan view of the utility model vertical shaft half movable semifixed blade windmill, Fig. 2 is the plan view of the utility model vertical shaft half movable semifixed blade windmill, Fig. 3 is the moving vane 3 in the half movable semifixed blade in the windmill and the linkage structure schematic representation of stator blade 1, Fig. 4 is the linkage structure sectional view of stator blade 1 and vanes fixed axle 8, Fig. 5 is the linkage structure sectional view of moving vane 3 and blade movable axis 9, and Fig. 6 is the C place enlarged view among Fig. 1.
Embodiment
Embodiment one: (referring to Fig. 1～Fig. 6) present embodiment comprises central shaft 5, upper flange plate 6, lower flange 7, base 10, screw rod 17, set screw 18, upper flange bearing 19, lower flange bearing 20, bearing support 22 and two to six combined blade devices, the lower end of central shaft 5 is arranged in the base 10 and by set screw 18 central shaft 5 and base 10 is connected as one, the stage casing of central shaft 5 is provided with shoulder 23, upper flange bearing 19 and lower flange bearing 20 all are arranged in the bearing support 22 and together with bearing support 22 and are set on the central shaft 5, lower flange bearing 20 is arranged on the top of the shoulder 23 of central shaft 5, upper flange plate 6 is arranged on the upside of bearing support 22, lower flange 7 is arranged on the downside of bearing support 22, being connected with 17, two to six combined blade devices of screw rod between upper flange plate 6 and the lower flange 7 evenly is fixed on the outer side surface of upper flange plate 6 and lower flange 7; Each combined blade device is by stator blade 1, two stationary axle end caps 2, moving vane 3, framework 4, vanes fixed axle 8, blade movable axis 9, following bent plate 11, last bent plate 12, two rolling bearings 13, two bearing (ball) covers 15 are formed, following bent plate 11 and last bent plate 12 all are fixed on the inner side surface of framework 4, following bent plate 11 is fixedlyed connected with lower flange 7, last bent plate 12 is fixedlyed connected with upper flange plate 6, two stationary axle end caps 2 are separately fixed at the upside and the downside of framework 4 outer ends, the closed end of two stationary axle end caps 2 respectively is fixed with a bearing (ball) cover 15, be provided with a rolling bearing 13 in each stationary axle end cap 2, all fixedly connected with a stationary axle end cap 2 in the two ends of vanes fixed axle 8, the two ends up and down of blade movable axis 9 are separately positioned in the rolling bearing 13, vanes fixed axle 8 and blade movable axis 9 form revolute, stator blade 1 is connected with vanes fixed axle 8, and moving vane 3 is connected with blade movable axis 9.
Embodiment two: (referring to Fig. 2～Fig. 4) present embodiment has increased buffering spacer 21, buffering spacer 21 is fixed on the stator blade 1.The buffering spacer 21 that increases is for when moving vane 3 and stator blade 1 carry out closed action, plays buffer function, protects moving vane 3 and stator blade 1.Other is identical with embodiment one.
Embodiment three: (referring to Fig. 1) present embodiment has increased axle sleeve 14 and flange shaft sleeve connector 16, flange shaft sleeve connector 16 is set on the central shaft 5, fixedly connected with upper flange plate 6 in the lower end of flange shaft sleeve connector 16, axle sleeve 14 is set on the central shaft 5, fixedlys connected with the upper end of flange shaft sleeve connector 16 in the lower end of axle sleeve 14.Present embodiment makes upper flange plate 6, lower flange 7, upper flange bearing 19, lower flange bearing 20 and axle sleeve 14 form a revolute, helps the steady rotation of windmill.Other is identical with embodiment two.
Embodiment four: the length of the stator blade 1 of (referring to Fig. 2, Fig. 3) present embodiment is less than the length of moving vane 3.She Ji result is in order to make under actual wind field like this, and moving vane 3 easier switchings are closed action.Other is identical with embodiment three.
Embodiment five: the angle of folding between (referring to Fig. 2, Fig. 3) present embodiment stator blade 1 and the moving vane 3≤90 degree.Other is identical with embodiment four.
Embodiment six: the upper flange bearing 19 and the lower flange bearing 20 of (referring to Fig. 1) present embodiment are angular contact bearing.Adopt angular contact bearing, can bear axial force, also can bearing radial force.Windmill mainly is to rotate under the resistance type driving force effect that produces at moving vane when starting.Promptly at windward side, moving vane is in open mode, produces the resistance type driving force; And on the choke limit, moving vane then is in closed state always, makes the windage minimum.After the windmill rotating speed was elevated to certain value, moving vane was fitted with stator blade under centrifugal force and windage effect, no longer produces the resistance type driving force.Under the lift that stator blade produced drove, the windmill rotating speed further was increased to working speed.Other is identical with embodiment five.
Embodiment seven: the combined blade device of (referring to Fig. 1) present embodiment is formed by two, and two combined blade devices are symmetrical arranged.Other is identical with embodiment one.
Embodiment eight: the combined blade device of (referring to Fig. 1) present embodiment is formed by three, and three combined blade devices are the equilateral triangle setting.Other is identical with embodiment one.
Embodiment nine: the combined blade device of (referring to Fig. 1) present embodiment is formed by four, and four combined blade devices are the cross setting.Other is identical with embodiment one.
When central shaft 5 rotational speeies were lower than predetermined circumference speed, moving vane 3 opened and closed and closes action at windmill, and when windmill when central shaft 5 rotational speeies are higher than predetermined circumference speed, 3 of moving vanes are in closed state, do not open and close and close action.After the windmill rotating speed reached a certain value, resistance type changed lift-type into, made rotating speed further be increased to rating value, thus remedied resistance type windmill rotating ratio little, be difficult to realize powerful deficiency.This structure in the utility model just can reach the resistance type windmill and the lift-type windmill structure switches purpose.
Claims (6)
1, the windmill of a kind of vertical shaft half movable semifixed combined blade, it comprises central shaft (5), upper flange plate (6), lower flange (7), base (10), screw rod (17), set screw (18), upper flange bearing (19), lower flange bearing (20), bearing support (22) and two to six combined blade devices, the lower end of central shaft (5) is arranged in the base (10) and by set screw (18) central shaft (5) and base (10) is connected as one, the stage casing of central shaft (5) is provided with shoulder (23), upper flange bearing (19) and lower flange bearing (20) all are arranged in the bearing support (22) and together with bearing support (22) and are set on the central shaft (5), lower flange bearing (20) is arranged on the top of the shoulder (23) of central shaft (5), upper flange plate (6) is arranged on the upside of bearing support (22), lower flange (7) is arranged on the downside of bearing support (22), be connected with screw rod (17) between upper flange plate (6) and the lower flange (7), two to six combined blade devices evenly are fixed on the outer side surface of upper flange plate (6) and lower flange (7); It is characterized in that: each combined blade device is by stator blade (1), two stationary axle end caps (2), moving vane (3), framework (4), vanes fixed axle (8), blade movable axis (9), following bent plate (11), last bent plate (12), two rolling bearings (13) and two bearing (ball) covers (15) are formed, following bent plate (11) and last bent plate (12) all are fixed on the inner side surface of framework (4), following bent plate (11) is fixedlyed connected with lower flange (7), last bent plate (12) is fixedlyed connected with upper flange plate (6), two stationary axle end caps (2) are separately fixed at the upside and the downside of framework (4) outer end, the closed end of two stationary axle end caps (2) respectively is fixed with a bearing (ball) cover (15), be provided with a rolling bearing (13) in each stationary axle end cap (2), all fixedly connected with a stationary axle end cap (2) in the two ends of vanes fixed axle (8), the two ends up and down of blade movable axis (9) are separately positioned in the rolling bearing (13), vanes fixed axle (8) and blade movable axis (9) form revolute, stator blade (1) is connected with vanes fixed axle (8), and moving vane (3) is connected with blade movable axis (9).
2, the windmill of vertical shaft according to claim 1 half movable semifixed combined blade, it is characterized in that: it also comprises buffering spacer (21), and buffering spacer (21) is fixed on the stator blade (1).
3, the windmill of vertical shaft according to claim 2 half movable semifixed combined blade, it is characterized in that: it also comprises axle sleeve (14) and flange shaft sleeve connector (16), flange shaft sleeve connector (16) is set on the central shaft (5), fixedly connected with upper flange plate (6) in the lower end of flange shaft sleeve connector (16), axle sleeve (14) is set on the central shaft (5), fixedlys connected with the upper end of flange shaft sleeve connector (16) in the lower end of axle sleeve (14).
4, the windmill of vertical shaft according to claim 3 half movable semifixed combined blade, it is characterized in that: the length of stator blade (1) is less than the length of moving vane (3).
5, the windmill of vertical shaft according to claim 4 half movable semifixed combined blade is characterized in that: the angle of folding between stator blade (1) and the moving vane (3)≤90 degree.
6, the windmill of vertical shaft according to claim 5 half movable semifixed combined blade, it is characterized in that: upper flange bearing (19) and lower flange bearing (20) are angular contact bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200911372U CN201255077Y (en) | 2008-10-17 | 2008-10-17 | Vertical shaft half-moving and half-fixing combination type blade windmill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200911372U CN201255077Y (en) | 2008-10-17 | 2008-10-17 | Vertical shaft half-moving and half-fixing combination type blade windmill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255077Y true CN201255077Y (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200911372U Expired - Fee Related CN201255077Y (en) | 2008-10-17 | 2008-10-17 | Vertical shaft half-moving and half-fixing combination type blade windmill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255077Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963139A (en) * | 2010-10-29 | 2011-02-02 | 哈尔滨工业大学 | Lift-drag composite vertical axis wind generator |
| CN102287337A (en) * | 2011-07-26 | 2011-12-21 | 哈尔滨工业大学 | Lift-drag type vertical axis wind driven generator based on overrunning combined mechanism |
| CN102536643A (en) * | 2012-01-16 | 2012-07-04 | 哈尔滨工程大学 | Vertical axis wind turbine |
| CN103953505A (en) * | 2014-03-25 | 2014-07-30 | 杭州爱纬斯电子有限公司 | Half-moon-shaped vertical wind scoop capable of being automatically opened or closed in downwind direction and configuration method |
| CN105927452A (en) * | 2015-11-09 | 2016-09-07 | 于保琼 | Gate type wind energy or water energy power impeller |
| CN106837687A (en) * | 2017-03-03 | 2017-06-13 | 崔明子 | Fan blade component and wind power generating set with vertical shaft |
| CN107476938A (en) * | 2017-08-13 | 2017-12-15 | 长沙小新新能源科技有限公司 | A kind of double-stator permanent magnet wind generator system |
-
2008
- 2008-10-17 CN CNU2008200911372U patent/CN201255077Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963139A (en) * | 2010-10-29 | 2011-02-02 | 哈尔滨工业大学 | Lift-drag composite vertical axis wind generator |
| CN101963139B (en) * | 2010-10-29 | 2012-07-04 | 哈尔滨工业大学 | Lift-drag composite vertical axis wind generator |
| CN102287337A (en) * | 2011-07-26 | 2011-12-21 | 哈尔滨工业大学 | Lift-drag type vertical axis wind driven generator based on overrunning combined mechanism |
| CN102287337B (en) * | 2011-07-26 | 2013-09-04 | 哈尔滨工业大学 | Lift-drag type vertical axis wind driven generator based on overrunning combined mechanism |
| CN102536643A (en) * | 2012-01-16 | 2012-07-04 | 哈尔滨工程大学 | Vertical axis wind turbine |
| CN103953505A (en) * | 2014-03-25 | 2014-07-30 | 杭州爱纬斯电子有限公司 | Half-moon-shaped vertical wind scoop capable of being automatically opened or closed in downwind direction and configuration method |
| CN103953505B (en) * | 2014-03-25 | 2017-04-12 | 杭州爱纬斯电子有限公司 | Half-moon-shaped vertical wind scoop capable of being automatically opened or closed in downwind direction |
| CN105927452A (en) * | 2015-11-09 | 2016-09-07 | 于保琼 | Gate type wind energy or water energy power impeller |
| CN106837687A (en) * | 2017-03-03 | 2017-06-13 | 崔明子 | Fan blade component and wind power generating set with vertical shaft |
| CN107476938A (en) * | 2017-08-13 | 2017-12-15 | 长沙小新新能源科技有限公司 | A kind of double-stator permanent magnet wind generator system |
| CN107476938B (en) * | 2017-08-13 | 2019-10-08 | 长沙小新新能源科技有限公司 | A kind of double-stator permanent magnet wind generator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20101017 |