CN106089573A - There is on a kind of blade the wind electric impeller of stay cord and vane change device - Google Patents
There is on a kind of blade the wind electric impeller of stay cord and vane change device Download PDFInfo
- Publication number
- CN106089573A CN106089573A CN201610739476.6A CN201610739476A CN106089573A CN 106089573 A CN106089573 A CN 106089573A CN 201610739476 A CN201610739476 A CN 201610739476A CN 106089573 A CN106089573 A CN 106089573A
- Authority
- CN
- China
- Prior art keywords
- blade
- change device
- vane change
- stay cord
- wind electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 description 7
- 238000010408 sweeping Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses the wind electric impeller on a kind of blade with stay cord and vane change device, including: some blades, wheel hub, support column, front stay cord, rear-pulling rope, middle part vane change device and root become oar device, described support column is positioned at the position of center line of wheel hub, middle part vane change device is positioned on blade, it is connected with each other by front stay cord between summit and the described middle part vane change device of described support column, described rear-pulling rope is for connecting adjacent middle part vane change device, rear-pulling rope joins end to end, and form a closed loop, described middle part vane change device becomes oar device rotation axis coincident with described root and is perpendicular to described wheel hub main shaft.By the way, the blade that the present invention provides having the wind electric impeller of stay cord and vane change device, it is more accurate that under not increasing impeller gross weight premise, blade is longer, slurry square angle adjusts, and improves the utilization rate of wind power equipment in low wind speeds, reduces cost of electricity-generating.
Description
Technical field
The present invention relates to wind power generator impeller field, particularly relate to the wind-powered electricity generation on blade with stay cord and vane change device
Impeller, it is adaptable to windward type wind wheel.
Background technology
Wind-driven generator is that one utilizes Wind power propelling blade to rotate, then drives diesel-electric new forms of energy device.Root
According to aerodynamic principle, to greatest extent wind energy can be changed into the wind electricity blade of mechanical energy and should have following substantially special
Point, one is that wind electricity blade is the thinnest, improves the resistance of the blade power minimizing blade rotation that wind produces；Two is the length of blade
The longer the better, increases the wind sweeping area of blade as possible, and three is to apply reinforcement unit to reduce the requirement to blade construction intensity
Element is such as stay cord or pillar.If strengthening the impact too greatly on wind energy utilization efficiency of the element resistance to lose more than gain, just lose reinforcement
The meaning of element.If blade relies on self structure intensity independent stressed from root to tip, the length of blade doubles, root
Portion's structural strength will increase by tens times.The length of large-scale wind electricity impeller blade to be improved on the premise of not increasing impeller gross weight
Degree and intensity are increasingly difficult to.
The problem that restriction wind-power electricity generation is maximum now is cost of electricity-generating problem.Three more blade wind are used from the whole world now
Electricity system is seen, the cost of the Unique Device impeller obtaining the energy only accounts for the 20-30% of wind power system cost, and miscellaneous equipment cost accounts for
Major part, additionally most time naturally provided wind speed do not reach far away and completely send out wind speed, and low wind speed generated output is little to joining
The utilization rate of complete equipment is low.If a kind of new wind power system of design has the property that one. except impeller outer, miscellaneous equipment is as become
Constant these equipment costs i.e. such as speed device, electromotor, pylon, transformator are constant, and two. the maximum generation power of this wind power system is not
Becoming, blade maximum (top) speed and moment of torsion are constant, and three allow blade not independent stressed use strengthens element, increases length of blade and does not increase leaf
Sheet weight, length of blade increases by more than 20%, i.e. wind sweeping area increases by more than 44%, and four strengthen element resistance consumes what blade utilized
Wind energy is less than 10%, then have the wind power system cost of electricity-generating of above-mentioned characteristic can reduce about 30%.
The purpose of the present invention is exactly to realize this imagination reducing cost of electricity-generating.
Summary of the invention
Present invention mainly solves technical problem is how that offer is a kind of under not increasing impeller gross weight premise, and blade is more
It is more accurate that long, slurry square angle adjusts, and improves the utilization rate of wind power equipment in low wind speeds, reduces the wind electric impeller of cost of electricity-generating.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provides and has stay cord on a kind of blade
With the wind electric impeller of vane change device, including some blades, wheel hub, support column, front stay cord, rear-pulling rope, middle part vane change device and root
Portion becomes oar device, and described support column is positioned at the position of center line of wheel hub, and middle part vane change device is positioned on blade, the top of described support column
Being connected with each other by front stay cord between point and described middle part vane change device, described rear-pulling rope becomes oar dress for connecting adjacent middle part
Putting, rear-pulling rope joins end to end, and forms a closed loop, and described middle part vane change device becomes oar device rotation axis coincident with described root
And it is perpendicular to described wheel hub main shaft.
In a preferred embodiment, described middle part vane change device and root become oar device and jointly act on promotion described blade rotation
Turn and change slurry square angle.
In a preferred embodiment, described middle part vane change device and root become oar device and jointly act on promotion described blade rotation
Turn fine setting propeller pitch angle.
In a preferred embodiment, described middle part vane change device includes the girder of blade, additional shaft, split bearing, cuts open
Split axle bearing, arc rack, driving gear, gear motor, described additional shaft is positioned on described girder, and described split bearing is pacified
Be loaded on additional shaft, and Split type bearing support be positioned at outside described split bearing, Split type bearing support be used for supporting described front stay cord with
Rear-pulling rope, so that not being wound around front stay cord and rear-pulling rope when blade rotates.
In a preferred embodiment, it is electrically connected with between described gear motor and described driving gear, described gear horse
Reach installation and described blade interior.
In a preferred embodiment, described Split type bearing support is provided with arc rack.
In a preferred embodiment, described driving gear rotates on described arc rack and promotes described blade 1 phase
Described bearing block is rotated, thus changes the propeller pitch angle of described blade.
The invention has the beneficial effects as follows: under not increasing impeller gross weight premise, blade is longer, slurry square angle adjusts more accurate
Really, improve the utilization rate of wind power equipment in low wind speeds, reduce cost of electricity-generating.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing, wherein:
Fig. 1 is the structural representation of wind electric impeller one specific embodiment on blade of the present invention with stay cord and vane change device；
Fig. 2 is middle part vane change device one specific embodiment in the wind electric impeller on blade of the present invention with stay cord and vane change device
Structural representation；
Fig. 3 is to have the concrete reality of vane change device A-A section one in the middle part of the wind electric impeller of stay cord and vane change device on blade of the present invention
Execute the structural representation of example.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiments that technical staff is obtained under not making creative work premise, broadly fall into the model of present invention protection
Enclose.
Refer to Fig. 1-3, provide in one particular embodiment of the present invention and there is on a kind of blade stay cord and become oar dress
The wind electric impeller put, the wind electric impeller that described blade has stay cord and vane change device includes: some blades 1, wheel hub 2,
Dagger 3, front stay cord 4, rear-pulling rope 5, middle part vane change device 6 and root become oar device 7, and described support column 3 is positioned at the centrage of wheel hub 2
Position, middle part vane change device 6 is positioned on blade 1, by front between summit and the described middle part vane change device 6 of described support column 3
Stay cord 4 is connected with each other, and described rear-pulling rope 5 is for connecting adjacent middle part vane change device 6, and rear-pulling rope 5 joins end to end, and forms one
Individual closed loop, described middle part vane change device 6 becomes oar device 7 rotation axis coincident with described root and is perpendicular to described wheel hub 2 main shaft.
Described middle part vane change device 6 and root change oar device 7 jointly act on the described blade 1 of promotion and rotate and change slurry square angle.
Described middle part vane change device 6 and root become oar device 7 and jointly act on the described blade 1 rotary fine adjustment propeller pitch angle of promotion.Described middle part becomes
Oar device 6 includes the girder 61 of blade 1, additional shaft 62, split bearing (63), Split type bearing support 64, arc rack 65, driving tooth
Wheel 66, gear motor 67, described additional shaft 62 is positioned on described girder 61, and described split bearing is installed on additional shaft 62,
And Split type bearing support 64 is positioned at outside described split bearing, Split type bearing support 64 is used for supporting described front stay cord 4 and rear-pulling rope 5,
So that not being wound around front stay cord 4 and rear-pulling rope 5 when blade 1 rotates.
Being electrically connected with between described gear motor 67 and described driving gear 66, described gear motor 67 is installed and described leaf
Sheet 1 is internal, and described Split type bearing support 64 is provided with arc rack 65, and described driving gear 66 turns on described arc rack 65
Move and promote described blade 11 to rotate relative to described bearing block, thus changing the propeller pitch angle of described blade 1.
In a specific embodiment, a kind of blade has the wind electric impeller of stay cord and vane change device, including blade 1, wheel
Hub 2, support column 3, front stay cord 4, rear-pulling rope 5, middle part vane change device 6 and root become oar device 7.One is arranged along described hub centre line
Individual described support column 3, arranges middle part vane change device 6 on described blade 1, and described front stay cord 4 connects support column 3 summit and described
Middle part vane change device 6, described rear-pulling rope 5 connects the described middle part vane change device 6 on adjacent two blade, described rear-pulling rope 5
Join end to end one closed loop of formation.Middle part vane change device 6 can promote described blade 1 to rotate change together with root change oar device 7
Slurry square angle, it is also possible to blade 1 rotary fine adjustment propeller pitch angle described in independent pushing.
Vane change device 6 in the middle part of installing on described blade 1, including the girder 61 of blade, the axle 62 being attached on beam, subdivision axle
Hold 63, Split type bearing support 64, arc rack 65, driving gear 66, gear motor 67.On the premise of not destroying blade girder 61
One axle being attached on beam 62 is set, axle 62 is installed split bearing 63, outside bearing, puts Split type bearing support 64 again.Subdivision
There is support to support described stay cord 4 and described stay cord 5 on bearing block, make blade 1 not be wound around stay cord when rotating.
The described gear motor 67 promoting described driving gear 66 is arranged on described blade 1 inside and does not exposes, and reduces and rotates
Time wind resistance, described arc rack 65 is arranged on described Split type bearing support 64, after support described stay cord 5 closed loop formed steady
Allocating face, described driving gear 66 rotates the described blade 1 of promotion on described arc rack 65 and revolves relative to described bearing block 64
Turn the propeller pitch angle changing described blade 1.
Described middle part vane change device 6 becomes oar device 7 rotation axis coincident with described root and is perpendicular to described wheel hub 2 main shaft
Line.
Therefore, the invention have the advantages that one. when impeller generating state, front stay cord opposing curved to blade of wind
Square, rear-pulling rope offsets the alternate stress that when blade rotates, gravity produces.
Two. hurricane attack blade feathering shut down time, owing to blade is symmetrical relative to wheel hub, pass through rear-pulling rope
The wind-force that the blade connected is subject to is cancelled out each other.
Three. blade has two actively vane change devices, and it is more accurate that blade pitch angle adjusts.
Four. after blade has reinforcement element, impeller is not on the premise of increasing gross weight, and the longer wind sweeping area of blade is bigger.
Five. the generating set of same power, except impeller outer miscellaneous equipment is constant, the simply impeller wind sweeping area of change, from
So condition most of time is all low wind speed, substantially increases at low wind speeds generated output, and the utilization rate of unit equipment improves, and sends out
Electricity cost reduces.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology neck
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (7)
1. there is the wind electric impeller of stay cord and vane change device, it is characterised in that including: some blades (1), wheel hub on a blade
(2), support column (3), front stay cord (4), rear-pulling rope (5), middle part vane change device (6) and root become oar device (7), described support column position
In the position of center line of wheel hub, middle part vane change device is positioned on blade, the summit of described support column and described middle part vane change device
Between be connected with each other by front stay cord, described rear-pulling rope is for connecting adjacent middle part vane change device, and rear-pulling rope joins end to end, and
Forming a closed loop, described middle part vane change device becomes oar device rotation axis coincident with described root and is perpendicular to described wheel hub main shaft
Line.
There is the wind electric impeller of stay cord and vane change device, it is characterised in that in described on blade the most according to claim 1
Portion's vane change device and root change oar device jointly act on the described blade of promotion and rotate and change slurry square angle.
There is the wind electric impeller of stay cord and vane change device, it is characterised in that in described on blade the most according to claim 1
Portion's vane change device and root become oar device and jointly act on the described blade rotary fine adjustment propeller pitch angle of promotion.
There is the wind electric impeller of stay cord and vane change device, it is characterised in that in described on blade the most according to claim 1
Portion's vane change device includes the girder (61) of blade, additional shaft (62), split bearing (63), Split type bearing support (64), arc rack
(65), driving gear (66), gear motor (67), described additional shaft is positioned on described girder, and described split bearing is installed on
On additional shaft, and Split type bearing support is positioned at outside described split bearing, and Split type bearing support is used for supporting described front stay cord and post-tensioning
Rope, so that not being wound around front stay cord and rear-pulling rope when blade rotates.
There is the wind electric impeller of stay cord and vane change device, it is characterised in that described tooth on blade the most according to claim 4
Being electrically connected with between wheel motor and described driving gear, described gear motor is installed and described blade interior.
There is on blade the most according to claim 4 the wind electric impeller of stay cord and vane change device, it is characterised in that described in cut open
It is provided with arc rack in split axle bearing.
There is the wind electric impeller of stay cord and vane change device, it is characterised in that described master on blade the most according to claim 4
Moving gear rotates on described arc rack and promotes described blade 1 to rotate relative to described bearing block, thus changes described leaf
The propeller pitch angle of sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739476.6A CN106089573A (en) | 2016-08-29 | 2016-08-29 | There is on a kind of blade the wind electric impeller of stay cord and vane change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739476.6A CN106089573A (en) | 2016-08-29 | 2016-08-29 | There is on a kind of blade the wind electric impeller of stay cord and vane change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089573A true CN106089573A (en) | 2016-11-09 |
Family
ID=57225428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610739476.6A Pending CN106089573A (en) | 2016-08-29 | 2016-08-29 | There is on a kind of blade the wind electric impeller of stay cord and vane change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790124A (en) * | 2021-10-15 | 2021-12-14 | 南通创智新材料科技有限公司 | Steel rope retaining device for blade based on wind power generation |
| WO2022268999A1 (en) | 2021-06-24 | 2022-12-29 | Kitex Aps | Wind turbine |
| WO2023237169A1 (en) * | 2022-06-10 | 2023-12-14 | Vestas Wind Systems A/S | A wind turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187093A (en) * | 2008-10-24 | 2011-09-14 | 剪式风能技术公司 | Cable-stayed rotor for wind and water turbines |
| WO2014187933A3 (en) * | 2013-05-24 | 2015-01-08 | Joval Nv | A rotor assembly for a wind turbine comprising a pair of cables |
| CN105736240A (en) * | 2016-03-15 | 2016-07-06 | 西北工业大学 | Fan blade steel cable connecting device in mechanical braking state |
| CN205955910U (en) * | 2016-08-29 | 2017-02-15 | 苏德华 | Wind -powered electricity generation impeller that has stay cord on blade and become oar device |
-
2016
- 2016-08-29 CN CN201610739476.6A patent/CN106089573A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187093A (en) * | 2008-10-24 | 2011-09-14 | 剪式风能技术公司 | Cable-stayed rotor for wind and water turbines |
| WO2014187933A3 (en) * | 2013-05-24 | 2015-01-08 | Joval Nv | A rotor assembly for a wind turbine comprising a pair of cables |
| CN105736240A (en) * | 2016-03-15 | 2016-07-06 | 西北工业大学 | Fan blade steel cable connecting device in mechanical braking state |
| CN205955910U (en) * | 2016-08-29 | 2017-02-15 | 苏德华 | Wind -powered electricity generation impeller that has stay cord on blade and become oar device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022268999A1 (en) | 2021-06-24 | 2022-12-29 | Kitex Aps | Wind turbine |
| CN113790124A (en) * | 2021-10-15 | 2021-12-14 | 南通创智新材料科技有限公司 | Steel rope retaining device for blade based on wind power generation |
| WO2023237169A1 (en) * | 2022-06-10 | 2023-12-14 | Vestas Wind Systems A/S | A wind turbine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |