CN205349610U - Large -scale wind -powered electricity generation impeller device of blade formula of leaning forward - Google Patents
Large -scale wind -powered electricity generation impeller device of blade formula of leaning forward Download PDFInfo
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- CN205349610U CN205349610U CN201620047804.1U CN201620047804U CN205349610U CN 205349610 U CN205349610 U CN 205349610U CN 201620047804 U CN201620047804 U CN 201620047804U CN 205349610 U CN205349610 U CN 205349610U
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- Prior art keywords
- blade
- runing rest
- stay cord
- scale wind
- wheel hub
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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 utility model discloses a large -scale wind -powered electricity generation impeller device of blade formula of leaning forward, including blade, stay cord, runing rest, wheel hub, variable pitch mechanism and rotary actuator, the blade is to the direction is relative down with the wind toper of the rotation axis same angulation of slope of wheel hub, the runing rest sets up at every on the blade and with the coaxial setting of rotation axis of blade, the stay cord is through connecting the runing rest is adjacent the blade interconnect get up, the stay cord with the runing rest is linked to be a closed loop together, the blade passes through variable pitch mechanism with the common drive of rotary actuator changes thick liquid square angle at the angle internal rotation of regulation down. In this way, the utility model discloses can take into account blade length, blade area, blade relative thickness, blade enhancement element and use these problems of contradiction each other, better solution large -scale wind -powered electricity generation impeller improve the pneumatic contradiction of learning the appearance and increasing impeller structural strength of blade.
Description
Technical field
This utility model relates to wind power generator impeller field, particularly relates to a kind of blade FC large-scale wind electricity impeller unit, 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.According to aerodynamic principle, to greatest extent wind energy can be changed into the wind electricity blade of mechanical energy and should have following basic characteristics, one is that wind electricity blade is thin as possible, so could improve lift-drag ratio, namely improves the resistance of the blade power minimizing blade rotation that wind produces；Two is in the rotational velocity range of blade design, and blade to have suitable solidity, and namely the width of blade and chord length can not be too little, and particularly the width of leaf tip can not be too little；Three is that the longer the better for the length of blade, increase the wind sweeping area of blade as possible, four is apply reinforcement element such as stay cord or pillar to reduce the requirement to blade construction intensity, the one side strengthening element favourable is can to reduce the blade requirement to self structure intensity to improve the pneumatic profile of blade, disadvantageous one side can increase resistance when being its rotation, if the too big impact on wind energy utilization efficiency of reinforcement element resistance is lost more than gain just loses the meaning strengthening element.If blade relies on self structure intensity independent stressed from root to tip, the length of blade doubles, and the power that root bears will increase several times.The impeller of large-scale wind electricity is from the pneumatic profile improving blade and increases by two aspects of blade wheel structure intensity, and it is conflicting that length of blade, blade area, blade relative thickness, blade strengthen the application of element, attends to one thing and lose sight of another.
From the large-scale wind electricity impeller that present wind energy turbine set is being applied, but without finding the method taking into account length of blade, blade area, blade relative thickness, reinforcement element resistance, but without seeing that large-scale wind electricity impeller uses stay cord or pillar etc. to strengthen element, the contradiction between pneumatic profile and the blade wheel structure intensity of blade constrains wind energy utilization efficiency and the raising of wind power equipment economic worth significantly.
Utility model content
This utility model is mainly solving the technical problems that provide a kind of blade FC large-scale wind electricity impeller unit, suitable in windward type wind wheel, can take into account length of blade, blade area, blade relative thickness, blade strengthen element apply these conflicting problems, preferably resolve large-scale wind electricity impeller improve blade pneumatic profile and increase blade wheel structure intensity contradiction.
For solving above-mentioned technical problem, the technical scheme that this utility model adopts is: provide a kind of blade FC large-scale wind electricity impeller unit, including blade, stay cord, runing rest, wheel hub, pulp distance varying mechanism and rotating driver, several described pulp distance varying mechanisms are equidistantly positioned in the side of described wheel hub, the root of described blade is connected with described pulp distance varying mechanism, the rotation axis of described blade relatively described wheel hub to direction windward tilts same angle and forms a taper, described runing rest is arranged on each described blade and is coaxially disposed with the rotation axis of described blade, described stay cord is connected with each other adjacent described blade by connecting described runing rest, described stay cord is linked to be a closed loop together with described runing rest, described rotating driver is arranged on the junction of each described blade and described runing rest, described blade jointly drives down to rotate in the angle of regulation by described pulp distance varying mechanism and described rotating driver and changes slurry square angle.
In one preferred embodiment of this utility model, the rotation axis windward side of described wheel hub is raised, and when making described blade be rotated in summit, described blade is basically perpendicular to ground level.
In one preferred embodiment of this utility model, described pulp distance varying mechanism and described rotating driver share a power supply or hydraulic power source.
In one preferred embodiment of this utility model, described runing rest is rigid body, and the two ends of described runing rest respectively connect a described stay cord and described stay cord propped up the rotating range overhanging described blade.
In one preferred embodiment of this utility model, each described blade arranges a described runing rest and makes between described blade a piece described stay cord of connection, or each described blade arranges two described runing rests make two described stay cords of connection between described blade.
In one preferred embodiment of this utility model, described rotating driver includes driving motor, drive gear, driven gear, adpting flange and rotating shaft, it is rigidly connected by described rotating shaft and described adpting flange between two sections of same described blade, described driving motor is arranged in runing rest and is connected with driving gear, described driven gear is fixed on described adpting flange and is connected with described driving gear, pinion rotation is driven described in described driving motor driving, described driving pinion rotation drives described driven gear to rotate, described driven gear rotates band moving vane and rotates change slurry square angle.
The beneficial effects of the utility model are: blade FC large-scale wind electricity impeller unit of the present utility model, not only can meet simultaneously allow the length of blade be made area longer, blade does more, the relative thickness of blade is made thinner requirement, and it is only small to strengthen element oblique rope resistance when rotated, the application of reinforcement element will be made to lose more than gain because reinforcement element resistance is excessive, preferably resolve large-scale wind electricity impeller and improve the pneumatic profile of blade and increase the contradiction of blade wheel structure intensity.This device not only can improve conversion ratio and the wind sweeping area of wind energy simultaneously, moreover it is possible to improves the ability of blade opposing high wind, can make wind-driven generator more efficiently, run economically and safely.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of blade FC large-scale wind electricity impeller unit one preferred embodiment of the present utility model；
Fig. 2 is the partial schematic diagram of rotating driver in Fig. 1；
Fig. 3 is the sectional view in A-A direction in Fig. 2；
The labelling of each parts of accompanying drawing 1 wind wheel is as follows: 1, blade, and 2, stay cord, 3, runing rest, 4, pulp distance varying mechanism, 5, wheel hub, 6, rotating driver, 61, drive motor, 62, drive gear, 63, driven gear, 64, adpting flange, 65, rotating shaft.
Detailed description of the invention
Technical scheme in this utility model embodiment will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
As it is shown in figure 1, this utility model embodiment includes:
A kind of blade FC large-scale wind electricity impeller unit, including blade 1, stay cord 2, runing rest 3, pulp distance varying mechanism 4, wheel hub 5 and rotating driver 6.Several described pulp distance varying mechanisms 4 are equidistantly positioned in the side of described wheel hub 5, the root of described blade 1 is connected with described pulp distance varying mechanism 4, the rotation axis of described blade 1 relatively described wheel hub 5 to direction windward tilts same angle and forms a taper, described runing rest 3 is arranged on each described blade 1 and is coaxially disposed with the rotation axis of described blade 1, described stay cord 2 is connected with each other by the described blade 1 connecting described runing rest 3 adjacent, described stay cord 2 is linked to be a closed loop together with described runing rest 3, described rotating driver 6 is arranged on the junction of each described blade 1 and described runing rest 3, described blade 1 jointly drives to rotate in the angle of regulation by described pulp distance varying mechanism 4 and described rotating driver 6 and changes slurry square angle.
The rotation axis windward side of described wheel hub 5 is raised, and when making described blade 1 be rotated in summit, is perpendicular to as possible ground level and develops simultaneously get Geng Gao when making described blade 1 be rotated in peak, and blade 1 can make blade 1 as possible away from pylon and ground when being rotated in minimum point simultaneously.So cause that a presumable improvement is to pylon oblique rope slot milling, add oblique rope in pylon top surrounding and can be substantially improved the stressing conditions of pylon, if newly-built pylon can save cost, if can only adding pylon stay cord to the old pylon big wind wheel of renewal be changed without pylon.
Described rotating driver 6 and described pulp distance varying mechanism 4 can share a power supply or hydraulic power source, not only can simplify equipment, it is also possible to synthetic operation relatively reliable under same control system.
Described runing rest 3 is rigid body, and the two ends of described runing rest 3 respectively connect a described stay cord 2, changes described runing rest 3 and supports the length of described steel cable part and can ensure that described blade 1 will not be wound around described stay cord 2 when described blade 1 rotates.
Each described blade 1 can arrange a described runing rest 3, makes a piece described stay cord 2 of connection between described blade 1.Two described runing rests 3 can also be set, make two described stay cords 2 of connection between described blade 1.With described stay cord support for separating surface, described blade 1 is divided into several sections, connects with flange and bolt between every section, so very long blade 1 can be divided into several sections of transports and splice again after wind field, convenient transport.
As shown in Figures 2 and 3, described rotating driver 6 includes driving motor 61, driving gear 62, driven gear 63, adpting flange 64 and rotating shaft 65, being rigidly connected by described rotating shaft 65 and described adpting flange 64 between two sections of same described blade 1, described runing rest 3 passes through bearing holder (housing, cover) on described rotating shaft 65.Described driving motor 61 is arranged in described runing rest 3 and is connected with described driving gear 62, described driven gear 63 is fixed on described adpting flange 64, described driving gear 62 is driven to rotate by described driving motor 61, described driving gear 62 rotates and drives described driven gear 63 to rotate, and described driven gear 63 rotates and drives the rotation of described blade 1 to change slurry square angle
In sum, blade FC large-scale wind electricity impeller unit of the present utility model and traditional windward type individual vanes impeller unit have very big difference, are mainly following four feature:
One is that several described blades 1 all tilt to direction windward, the angle tilted relative to the rotation axis of described wheel hub 5 is identical, several described blades 1 collectively form a taper, connect the described stay cord 2 of described blade 1 not on the rotary cone of described blade 1, the pulling force of described stay cord 2 has two component, its component being perpendicular to ground level offsets the self gravitation of the positive and negative alternate that the described blade 1 rotated is subject to, its component being parallel to ground level offsets the bending force down the wind that described blade 1 is produced by wind-force, and retrain described blade 1 and significantly do not bend to pylon direction.Simple several stay cord 2 solves the alternately gravity of blade 1 and this two hang-up of bending force of wind generation, is substantially reduced the blade 1 requirement to self structure intensity.Also have one to need ben it is important that the quantity of this utility model device not only stay cord 2 is little, and the trend of stay cord 2 generally along the direction of rotation of blade 1, only small relative to the cross-sectional area of the direction of motion so resistance is only small when stay cord 2 rotates；
Two is be coaxially arranged with described runing rest 3 with the rotation axis of described blade 1 on each described blade 1, described stay cord 2 is connected with each other by the described blade 1 connecting described runing rest 3 adjacent, described stay cord 2 is linked to be a closed loop together with described runing rest 3, and this closed loop can automatically change the tension force of described stay cord 2 according to the wind-force that described blade 1 is subject to and gravitational conditions；
Three is that each described blade 1 is provided with described rotating driver 6 at described runing rest 3 place, after connecting into a closed loop due to described blade 1 by described stay cord 2, the resistance that the resistance one definite proportion independent stressed blade that described blade 1 rotates rotates is big, if the very long blade of the large-scale wind wheel of monolateral driving to rotate its torsional deflection very big, only adopt described pulp distance varying mechanism 4 and described rotating driver 6 jointly to drive the rotation reliability service that just can make described blade 1；
Four is that the rotation axis windward side of described wheel hub 5 is raised, when making described blade 1 be rotated in summit, described blade 1 is basically perpendicular to ground level, when making described blade 1 be rotated in minimum point, described blade 1 is done the best away from pylon and ground, so for the pylon of same height, described blade 1 can design longer, to lift get Geng Gao, wind sweeping area bigger.
Blade FC large-scale wind electricity impeller unit of the present utility model, preferably resolve large-scale wind electricity impeller improve the pneumatic profile of blade and increase the contradiction of blade wheel structure intensity, this device not only can improve transformation efficiency and the wind sweeping area of wind energy simultaneously, the ability of blade opposing high wind can also be improved, can make wind-driven generator more efficiently, run economically and safely.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in scope of patent protection of the present utility model.
Claims (6)
1. a blade FC large-scale wind electricity impeller unit, it is characterized in that, including blade, stay cord, runing rest, wheel hub, pulp distance varying mechanism and rotating driver, several described pulp distance varying mechanisms are equidistantly positioned in the side of described wheel hub, the root of described blade is connected with described pulp distance varying mechanism, the rotation axis of described blade relatively described wheel hub to direction windward tilts same angle and forms a taper, described runing rest is arranged on each described blade and is coaxially disposed with the rotation axis of described blade, described stay cord is connected with each other adjacent described blade by connecting described runing rest, described stay cord is linked to be a closed loop together with described runing rest, described rotating driver is arranged on the junction of each described blade and described runing rest, described blade jointly drives down to rotate in the angle of regulation by described pulp distance varying mechanism and described rotating driver and changes pitch angle.
2. blade FC large-scale wind electricity impeller unit according to claim 1, it is characterised in that the rotation axis windward side of described wheel hub is raised, and when making described blade be rotated in summit, described blade is basically perpendicular to ground level.
3. blade FC large-scale wind electricity impeller unit according to claim 1, it is characterised in that described pulp distance varying mechanism and described rotating driver share a power supply or hydraulic power source.
4. blade FC large-scale wind electricity impeller unit according to claim 1, it is characterised in that described runing rest is rigid body, and the two ends of described runing rest respectively connect a described stay cord and described stay cord propped up the rotating range overhanging described blade.
5. blade FC large-scale wind electricity impeller unit according to claim 4, it is characterized in that, each described blade arranges a described runing rest and makes between described blade a piece described stay cord of connection, or each described blade arranges two described runing rests make two described stay cords of connection between described blade.
6. blade FC large-scale wind electricity impeller unit according to claim 1, it is characterized in that, described rotating driver includes driving motor, drive gear, driven gear, adpting flange and rotating shaft, it is rigidly connected by described rotating shaft and described adpting flange between two sections of same described blade, described driving motor is arranged in runing rest and is connected with driving gear, described driven gear is fixed on described adpting flange and is connected with described driving gear, pinion rotation is driven described in described driving motor driving, described driving pinion rotation drives described driven gear to rotate, described driven gear rotates band moving vane and rotates change pitch angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620047804.1U CN205349610U (en) | 2016-01-19 | 2016-01-19 | Large -scale wind -powered electricity generation impeller device of blade formula of leaning forward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620047804.1U CN205349610U (en) | 2016-01-19 | 2016-01-19 | Large -scale wind -powered electricity generation impeller device of blade formula of leaning forward |
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| Publication Number | Publication Date |
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| CN205349610U true CN205349610U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620047804.1U Expired - Fee Related CN205349610U (en) | 2016-01-19 | 2016-01-19 | Large -scale wind -powered electricity generation impeller device of blade formula of leaning forward |
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| CN (1) | CN205349610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464900A (en) * | 2016-01-19 | 2016-04-06 | 苏德华 | Blade forward curved large wind power impeller device |
| CN114109715A (en) * | 2021-10-18 | 2022-03-01 | 潍坊新力蒙水产技术有限公司 | Soft-pulling reinforcing device for rotating fan body |
-
2016
- 2016-01-19 CN CN201620047804.1U patent/CN205349610U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464900A (en) * | 2016-01-19 | 2016-04-06 | 苏德华 | Blade forward curved large wind power impeller device |
| CN114109715A (en) * | 2021-10-18 | 2022-03-01 | 潍坊新力蒙水产技术有限公司 | Soft-pulling reinforcing device for rotating fan body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190119 |