CN103939284B - Afflux blade centre of gravity vertical axis windmill - Google Patents
Afflux blade centre of gravity vertical axis windmill Download PDFInfo
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- CN103939284B CN103939284B CN201410178054.7A CN201410178054A CN103939284B CN 103939284 B CN103939284 B CN 103939284B CN 201410178054 A CN201410178054 A CN 201410178054A CN 103939284 B CN103939284 B CN 103939284B
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- 238000006243 chemical reaction Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
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- 239000010410 layer Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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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 present invention relates to a kind of afflux blade centre of gravity vertical axis windmill, including the fixing pylon determining vertical rotation axis and the wind wheel being supported on pylon, wind wheel horizontally rotates pair with pylon composition axial constraint；Wind wheel includes that center of rotation is supported in the wheel carrier of pylon and is distributed in the afflux blade of wheel carrier periphery；Afflux blade is by one group of arranged in parallel and leaves the fin in space each other and constitutes, the vertical extension of afflux blade and have streamlined cross-section；Wheel carrier is made up of one group of uniform horizontal-extending and upper and lower corresponding spoke of circumference, and the spoke outer end of upper and lower corresponding is fixing with the upper and lower corresponding site of blade respectively to be connected or is rotationally connected.After using the structure of the present invention, the Wind Power Utilization performance of afflux blade can be given full play to.
Description
Technical field
The present invention relates to a kind of vertical axis windmill, especially a kind of afflux blade centre of gravity vertical-shaft wind
Machine, belongs to technical field of wind power generating equipment.
Background technology
According to the applicant understood, in the wind power generating set run in the market, wind energy conversion system used is the most most
Number is the horizontal axis turbines formula wind energy conversion system of wind wheel rotating shaft horizontal positioned, belongs to high wind speed wind energy conversion system category, its
In low wind speed poor performance, at average annual wind speedThe regional economical operation bad economic results of meter per second.Additionally,
This kind of wind energy conversion system operation noise is big, can produce infrasonic wave, is not suitable for using in city and community, and
Also can endanger the living environment of birds.
Additionally, also vertical axis windmill, the feature of this type of wind energy conversion system is that calm tropism requires, noise is little,
Do not produce infrasonic wave.Compared with horizontal-shaft wind turbine, vertical axis windmill may utilize dimensional airfoil blade,
The lift that can utilize blade, the thrust (also referred to as resistance) that blade can be utilized again；The each blade of its wind wheel is at wind
Exerting oneself during difference when power machine runs, but take over rotation successively and exert oneself, blade load cyclically-varying is (vertical
Axle blade rotates one week, the angle of attack experience 360 ° of changes, only angle of attack blade ability in the range of about ± 20 °
Exert oneself, be in stall conditions at other angular ranges and can not exert oneself).These features of vertical axis windmill
Both advantageous and disadvantageous, utilizing advantage, suppression shortcoming is that research and development are applicable to average annual wind speedMeter per second area and
The key of the vertical-shaft wind machine technology of urbanite's habitat environment.
Blade used by vertical axis windmill has three class aerofoil profiles: the first kind is push type blade, uses such leaf
The wind wheel of sheet easily from turn, but the power coefficient Cp of such blademax≤ 0.15 and rotating speed low, nothing
Method is applicable to efficient wind-driven generator；Equations of The Second Kind is the symmetrical airfoil blade of lift-type, such blade
Aerofoil profile is NACA00xy (x=1 or 2；Y=0,1 ..., 8 or 9), its CpmaxHeight, the Cp of some blademax
Can reach 0.45, but use such blade wind wheel cannot from turn；3rd class is the suction surface of lift-type
Have the airfoil fan of spill for convex, pressure face, such blade quantity is numerous, its Cpmax0.20 0.30
Between, use such blade wind wheel can from turn, but play torque less than first kind blade and Cpmax
Corresponding rotating speed is less than Equations of The Second Kind blade.
At present, utilize the vertical axis windmill of lift-type airfoil fan, substantially use Darrieus technology
" Φ " wind wheel or " H " wind wheel, the common characteristic of both wind wheels is main axis length >=wind wheel height,
Thus both wind wheel centers of gravity are higher, in order to ensure the stability of whole wind wheel, it is desirable to wind turbine main shaft has
The highest strength and stiffness, cause main shaft weight the heaviest.Wherein, " Φ " wind wheel is by " rope skipping curve " shape
Aforementioned Equations of The Second Kind blade constitute (generally using thin airfoil type blade), blade two ends be directly connected in main shaft (if
Solve " Φ " wind wheel from turn, the aforementioned first kind blade of serpentine also can be connected to main shaft).“Φ”
The blade that wind wheel uses to have enough flexibilities, its CpmaxCorresponding tip-speed ratio λ is higher, causes " Φ "
Low wind speed poor performance in wind wheel." H " wind wheel great majority are connected to by cantilever by aforementioned 3rd class blade
Main shaft forms, and trembles for suppression blade, it is desirable to cantilever has the highest strength and stiffness, causes cantilever weight
Measure the heaviest；Meanwhile, the 3rd class blade CpmaxCorresponding Optimum Leaves width (also referred to as chord length) ratio aforementioned second
Class blade wants big 50-60%, correspondingly, leaf weight 80-100% to be weighed.It is limited by this, identical
Under height, 1-2 times to be weighed of weight ratio " Φ " wind wheel of " H " wind wheel, its centrifugal load is bigger, to master
The strength and stiffness of axle require higher.
As can be seen here, lower the center of gravity and alleviate weight, increasing high CpmaxThe torque that rises of aerofoil profile is design height
Two technological break-through points of effect wind energy conversion system, particularly improve the break-through point of low wind speed performance in wind energy conversion system.
Filed in 4 days April in 2010 of inventor, the patent No. 201010162074.7, authorize
The Chinese invention patent of notification number CN102213180B discloses a kind of vertical axis (also referred to as vertical shaft) wind-force and sends out
The blower fan of group of motors.But, this technical scheme remains in following main disadvantage: (1) interlayer support
Parts are the most too fat to move, relatively big to interference in air flow, affect the Wind Power Utilization performance of blade；(2) interlayer support
Structure optimizes not, causes the strength and stiffness in its Unit Weight relatively low, reach intended intensity and
Rigidity remains a need for bigger weight, is unfavorable for alleviating wind wheel weight；(3) between wheel carrier and the main shaft of wind wheel
Adapting structure for electric intensity poor, but for improve intensity will certainly increase wind wheel weight, this problem causes
Wind wheel cannot maximize；(4) wind energy conversion system power cannot be realized control.Need badly in developing Unit Weight strong
Spend higher interlayer support structure and adapting structure for electric, thus wind will not be increased while reaching expection intensity
Wheel weight, even alleviate wind wheel weight；Develop simultaneously and can realize the structure that power controls, pass through power
Control to expand the wind speed range that wind energy conversion system runs, improve generated energy.
Filed in 17 days Mays in 2012 of present invention applicant, application number 201210152431.0, Shen
The Chinese invention patent application of publication No. CN102661239A please disclose a kind of multiple wing efficiently utilizing wind energy
Afflux blade, belongs to afflux blade, can make full use of Bernoulli effect, produces the fluid flowing through interplane territory
Raw afflux effect, improves the Wind Power Utilization performance of blade.And currently also need badly and develop and can effectively play this
The vertical axis windmill of class blade Wind Power Utilization performance.
Summary of the invention
The technical problem to be solved is: overcome the problem that prior art exists, it is provided that Yi Zhongji
Stream blade centre of gravity vertical axis windmill, can effectively play the Wind Power Utilization performance of afflux blade.
The basic technical scheme that the present invention solves its technical problem is as follows:
A kind of afflux blade centre of gravity vertical axis windmill, including the fixing pylon determining vertical rotation axis
With the wind wheel being supported on pylon, described wind wheel horizontally rotates pair with pylon composition axial constraint；It is special
Levying and be, described wind wheel includes that center of rotation is supported in the wheel carrier of described pylon and is distributed in described wheel carrier
The afflux blade of periphery；Described afflux blade is by one group of arranged in parallel and the fin that leaves space each other
Constitute, the described vertical extension of afflux blade and there is streamlined cross-section；Described wheel carrier includes one group of circumference all
Cloth is horizontal-extending and the spoke of upper and lower corresponding；The spoke of described wheel carrier respectively constitutes a center of rotation and supports
In transmission frame and at least one connection frame of pylon, described connection frame is through support member and adjacent connection
Frame or the fixing connection of transmission frame；Described transmission frame, connect the outer end of frame spoke upper and lower with blade respectively
Corresponding site is directly fixed to connect or fix with the fixture being fixed on blade and is connected or is rotationally connected.
Applicant finds through going deep into practical studies, uses said structure connect fixing for afflux blade or rotate
When being connected to wheel carrier, can effectively play the Wind Power Utilization performance of afflux blade；Especially using the company of rotation
When connecing mode, while wind drive wind wheel rotates, afflux blade is automatic around rotation under wind-force effect
Junction point turns an angle, and makes wind energy the most farthest enter the space in afflux blade, can enter one
Step gives full play to the Wind Power Utilization performance of afflux blade.Additionally, said structure can effectively reduce wind wheel center of gravity,
Reduce wind wheel weight.
Preferably, described wheel carrier uses the first structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is arranged by about two and same
First, second flange of axle, and be distributed in first, second flange circumference respectively and radially extend
Loading arm and reinforcement arm are constituted, the end of described loading arm and reinforcement arm respectively with transmission frame in the middle part of the most polygon
The each summit of shape is connected；It is provided with at least one muscle between corresponding loading arm and reinforcement arm；Described first,
Second flange formed transmission frame center of rotation, and with pylon top constitute axial constraint horizontally rotate pair.
It is highly preferred that described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged
Main shaft or the power input shaft of load, described first, second flange inputs with main shaft or power respectively
Axle is coaxially connected；Concave and inwardly the aerofoil of each fin of described blade aerofoil outwardly is convex, adjacent
Space between fin is curvilinear.
In first structure, truss as the adapting structure for electric between wheel carrier and main shaft, strong in its Unit Weight
Spend higher, wind wheel weight will not be increased while intensity reaching to expect, even can alleviate wind wheel weight,
So that wind wheel can effectively maximize.Meanwhile, after using the first structure, wind wheel uniform force is good,
It is more conducive to wind wheel rotate.Additionally, the first structure can also be used for being connected with pylon top load power power shaft
Wind wheel.
Preferably, described wheel carrier uses the second structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is by three-flange and uniform
Constitute in three-flange circumference and the loading arm that radially extends, described loading arm end respectively with transmission frame
The middle part on each summit of regular polygon, middle part or each limit of regular polygon is connected；When described truss loading arm end
End respectively with transmission frame in the middle part of the middle part on each limit of regular polygon be connected time, regular polygon in the middle part of described transmission frame
The connecting rod being connected with loading arm it is additionally provided with between adjacent both sides；Described three-flange forms the rotation of transmission frame
Center, and with pylon top constitute axial constraint horizontally rotate pair.
It is highly preferred that described wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged
Main shaft or the power input shaft of load, described three-flange is coaxially consolidated with main shaft or with power input shaft
Even；Concave and inwardly the aerofoil of each fin of described blade aerofoil outwardly is convex, between adjacent fins
Space curvilinear.
Use the second structure to may utilize the power input shaft of load thus eliminate the main shaft of wind wheel, can be maximum
Lower the center of gravity to limit and alleviate wind wheel weight, reduce cost again.Meanwhile, the transmission of this structure is used
After frame, its truss is as the adapting structure for electric between wheel carrier and load power power shaft, in its Unit Weight
Intensity is higher, will not increase wind wheel weight while intensity reaching to expect, even can alleviate wind wheel weight,
So that wind wheel can effectively maximize.Additionally, what the second structure can also be used for being connected with pylon top main shaft
Wind wheel.
Preferably, described fixture is for having the outer peripheral plate of streamlined, the plate face of described plate and leaf
Sheet end face is connected, and described plate is extended with prominent ear, described prominent ear and transmission towards transmission frame or connection frame
Frame, the outer end of connection frame spoke are fixed and are connected or be rotationally connected；Or, described fixture is for having streamline
The outer peripheral garter spring of shape, described garter spring inward flange hoop is in blade circumference, and described garter spring outward flange is towards transmission frame
Or connect frame and be extended with prominent ear, connection is fixed in described prominent ear and transmission frame, the outer end being connected frame spoke
Or be rotationally connected；Or, described fixture is to have two outer ends and the " V " shape part of a corner end, described
Two outer ends of " V " shape part are connected with the blade face inwardly of blade or vane end faces respectively, described " V " shape part
Corner end and transmission frame, be connected that the middle part of frame spoke is fixing to be connected or be rotationally connected；Or, described solid
Locking member be one end with transmission frame or be connected the spoke of frame fixing connect or be rotationally connected, the other end and blade court
The straight plate that interior blade face is connected.
So, fixture itself does not interferes with the utilization to wind energy of the afflux blade, and when being rotationally connected
Be conducive to afflux blade to rotate swimmingly, can preferably play the Wind Power Utilization performance of afflux blade.
Controlling for realizing wind energy conversion system power, the technical scheme that the present invention is the most perfect is as follows:
Preferably, described fixture towards transmission frame or connects frame side and transmission frame or be connected frame spoke
Between be provided with the telescopic controller in order to moving blade angle, or, described fixture is near blade
Position and transmission frame or be connected between frame spoke and be provided with the telescopic controller in order to moving blade angle；Institute
Stating controller is elastomeric element, or, described controller is the Electronic control of controlled end external control equipment
Device.
Then can be with the force balance between blade centrifugal force and elastic force when controller is elastomeric element
Mode is implemented wind energy conversion system power and is controlled；Then can be in the way of Electronic control when controller is electric controller
Implement wind energy conversion system power to control.After implementing the control of wind energy conversion system power, the wind speed that can expand wind energy conversion system is suitable for model
Enclose.
For simplified support structure, it is to avoid interference air-flow, affect the Wind Power Utilization performance of blade；Meanwhile, for
Improving the strength and stiffness in supporting construction Unit Weight, in order to alleviating wind wheel weight, the present invention is further
Perfect technical scheme is as follows:
In the middle part of described transmission frame the most polygon with connect that identical in shape in the middle part of frame and each corresponding sides are parallel to each other
Shape；In the middle part of described transmission frame, each summit of regular polygon is propped up with being connected between each summit of regular polygon in the middle part of frame warp
Support member is connected；Described support member is the X-shaped part with four ends, described X-shaped part top two
End, two ends, bottom respectively with transmission frame or to be connected two adjacent vertexs of frame connected, and described X-shaped part position
In transmission frame and the same side of connection frame；Or, described support member is the transmission frame that is connected, connects in the middle part of frame
The straight-bar of each corresponding vertex of regular polygon；Or, described support member includes being connected in transmission frame, connection frame
The straight-bar of each corresponding vertex of portion's regular polygon, is additionally provided with diagonal brace between described straight-bar and the dual-side on summit.
Applicant finds through going deep into practical studies, after using above-mentioned preferred structure, can not only avoid interference gas
Stream, moreover it is possible to alleviate wind wheel weight further while satisfied expection rigidity and requirement of strength.
Preferably, in the middle part of described transmission frame, the company's of being additionally provided with muscle between adjacent spoke outside regular polygon, rises
To reinforcement effect；It is additionally provided with connecting rod between the adjacent spoke of regular polygon in the middle part of described connection frame；Or,
It is additionally provided with connecting rod between adjacent spoke outside regular polygon in the middle part of described connection frame, plays reinforcement effect.
Preferably, described connection frame has at least two and forms at least two-layer spoke with transmission frame, every layer
Spoke is separately installed with the blade of correspondence, the blade stagger distribution that adjacent two layers spoke is installed.
So can improve the probability windward of blade optimal attack angle, make wind wheel be more easy to turn, again can be with segmentation
Form reduce length of blade, thus reduce the manufacture of blade, transport and installation cost.
Compared with prior art, beneficial effects of the present invention is as follows:
(1) by optimizing blade and the attachment structure of wheel carrier, this body structure of wheel carrier and blade mount
Structure, it is ensured that the Wind Power Utilization performance of afflux blade can be given full play to, can reduce wind wheel center of gravity simultaneously
And alleviate wind wheel weight.
(2) by arranging and optimizing truss structure, make the intensity in adapting structure for electric Unit Weight higher, from
And beneficially wind wheel maximizes.
(3) by optimizing supporting construction, air-flow can not only be avoided interference, moreover it is possible to by improving supporting construction
Strength and stiffness in Unit Weight alleviate wind wheel weight further.
(4) by segmentation, it is staggered installation of blade, improves the probability windward of blade optimal attack angle and more hold
Easily rise and turn wind wheel, and reduce the manufacture of blade, transport and installation cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2, Fig. 3, Fig. 4 are respectively A, B, C regional enlarged drawing of Fig. 1.
The anchor structure figure that Fig. 5, Fig. 6 are respectively in Fig. 3, Fig. 4.
Fig. 7 is the structural representation of Fig. 1 embodiment wheel carrier.
Fig. 8 is Fig. 1 embodiment transmission frame and the structural representation of truss.
Fig. 9 is the structural representation of truss in Fig. 8.
Figure 10, Figure 11 are respectively Fig. 1 embodiment and connect frame, the structural representation of support member.
Figure 12 to Figure 14 is the afflux blade construction schematic diagram that can be used for Fig. 1 embodiment.
Figure 15 is the structural representation of the embodiment of the present invention 2.
Figure 16 is the D regional enlarged drawing of Figure 15.
Figure 17 is the schematic diagram of the embodiment of the present invention 3.
Figure 18 is the E regional enlarged drawing of Figure 17.
Figure 19 to Figure 28 is that the present invention can be used for other transmission frame schematic diagram without main axle structure.
Figure 29 to Figure 30 is other transmission frame schematic diagram that the present invention can be used for embodiment 1,2.
Figure 31 to Figure 37 be the present invention can other connect frame schematic diagram.
Figure 38 to Figure 39 is other truss schematic diagram that the present invention can be used for embodiment 1,2.
Figure 40 to Figure 41 be the present invention can other support member schematic diagram.
Figure 42 be the present invention can other fixture schematic diagram.
Detailed description of the invention
It is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments to the present invention.But the present invention is not
It is limited to given example.
Embodiment 1
The present embodiment afflux blade centre of gravity vertical axis windmill is as shown in Figures 1 to 4, vertical including determining
To the fixing pylon 1 of rotation axis and the wind wheel 2 being supported on pylon 1, wind wheel 2 and pylon 1 constitute axle
Pair is horizontally rotated to retrain；Wind wheel 2 includes that center of rotation is supported in wheel carrier 3 and the distribution of pylon 1
Afflux blade 4 in wheel carrier 3 periphery；As shown in Figure 12 to Figure 14, afflux blade 4 is arranged parallel by one group
Cloth and leave the fin 5 in space each other and constitute, the vertical extension of afflux blade 4 and there is streamlined cut
Face；Wheel carrier 3 is made up of one group of uniform horizontal-extending and upper and lower corresponding spoke of circumference, upper and lower corresponding
Spoke outer end upper and lower corresponding site with blade 4 respectively be rotationally connected.
Specifically, as it is shown in fig. 7, the spoke of wheel carrier 3 respectively constitutes a center of rotation is supported in pylon 1
Transmission frame 6 and at least one connect frame 7, connect frame 7 through support member and adjacent connection frame 7 or
Transmission frame 6 is fixing to be connected；Transmission frame 6, connect frame 7 spoke outer end respectively be fixed on consolidating of blade 4
Locking member 8 is rotationally connected；As shown in Figure 12 to Figure 14, each fin of blade 45 aerofoil outwardly is concave
And aerofoil inwardly is convex, the space between adjacent fins 5 is curvilinear.The present embodiment contains two
Connect frame 7, lay respectively at above and below transmission frame 6, form two-layer spoke structure, 4 points of each blade
Not being installed on each layer spoke, the blade 4 that adjacent two layers spoke is installed is interspersed.
As shown in Figure 5 to Figure 6, the structure of fixture 8 has two kinds: a kind of for having streamlined outward flange
Plate, the plate face of plate and blade 4 end face be connected, and plate is towards transmission frame 6 or connects frame 7 and is extended with
Prominent ear 8-1, prominent ear 8-1 and transmission frame 6, the outer end being connected frame 7 spoke are rotationally connected；Another kind of
For having the outer peripheral garter spring of streamlined, garter spring inward flange hoop is in blade 4 circumference, and garter spring outward flange is towards biography
Dynamic frame 6 or connect frame 7 and be extended with prominent ear 8-1, prominent ear 8-1 and transmission frame 6, is connected frame 7 spoke
Outer end be rotationally connected.
The main shaft 9 that wind wheel 2 also includes being rotationally connected with pylon 1 top and axis is vertically arranged is (such as figure
Shown in 2).As shown in Figure 8, in regular polygon and be provided with truss 10 in the middle part of transmission frame 6；Truss 10
Including about two arrangements and coaxial first, second flange 10-1,10-2, first, second flange 10-1,
10-2 is respectively arranged on main shaft 9 circumference and is connected with main shaft 9, and first, second flange 10-1,10-2 is respectively
Circumference is evenly equipped with the loading arm 10-3 and reinforcement arm 10-4 radially extended, loading arm 10-3 and reinforcement arm 10-4
End respectively with transmission frame 6 in the middle part of each summit of regular polygon be connected；Corresponding loading arm 10-3 and reinforcement
At least one muscle 10-5 it is provided with between arm 10-4；First, second flange 10-1,10-2 forms transmission
The center of rotation of frame 6, and with pylon top constitute axial constraint horizontally rotate pair；Additionally, transmission frame 6
The company of being additionally provided with muscle 6-1 between adjacent spoke outside the regular polygon of middle part.As it is shown in figure 9, truss 10
Prop up and form multiple triangular support structure between muscle 10-5, loading arm 10-3, reinforcement arm 10-4.
As shown in Fig. 7, Figure 10, Figure 11, in the middle part of transmission frame 6 with connect identical in shape in the middle part of frame 7 and
The regular polygon that each corresponding sides are parallel to each other；Connect in the middle part of frame 7 between the adjacent spoke outside regular polygon
It is additionally provided with connecting rod 7-1；In the middle part of transmission frame 6, each summit of regular polygon is respectively pushed up with being connected regular polygon in the middle part of frame 7
It is connected by support member 11 between point；Support member 11 is the X-shaped part with four ends, X-shaped part
Both upper ends thereof, two ends, bottom respectively with transmission frame 6 or be connected two adjacent vertexs of frame 7 and be connected, and " X "
Shape part is positioned at transmission frame 6 and connects the same side of frame 7.
It should be noted that also can fix with transmission frame 6, the outer end that is connected frame 7 spoke with upper fixing element 8
Connect, be connected so that blade 4 is fixing with wheel carrier spoke.
Embodiment 2
The present embodiment afflux blade centre of gravity vertical axis windmill is as shown in Figure 15 to Figure 16, and it is tied substantially
Structure is same as in Example 1, the difference is that only: fixture 8 is towards transmission frame 6 or connects frame 7
Side and transmission frame 6 or be connected between frame 7 spoke and be provided with the telescopic controller in order to moving blade angle
12, controller 12 is elastomeric element, or, controller 12 is the electronic of controlled end external control equipment
Controller.
Controller 12 can be elastomeric element, and when applying or cancelling external force, its length can change or reply；
When a certain wind speed makes wind energy conversion system rotation speed change, blade centrifugal force changes therewith, and blade is with fixture 8
With transmission frame 6 or be connected being rotationally connected a little for axis rotation certain angle of frame 7, controller 12 is made to extend
Or shorten, thus changing the air-flow effect to blade, this effect causes again wind energy conversion system rotating speed and blade to be centrifuged
The negative feedback change of power, at this moment the elastic force of controller 12 makes the length of controller 12, wind energy conversion system rotating speed
The most again produce negative feedback change with blade centrifugal force, and make blade turn an angle round about,
In such circulation, the amplitude of variation of each variable is more and more less, until dynamic equilibrium foundation, blade are not
Till being rotated further by.
So, on the one hand can immediate feedback and low cost, namely from starting the feedback that changes to start to control
Carried out by elastomeric material is instantaneous, on the other hand control reliability high and non-maintaining.
Additionally, controller 12 may be used without the electric controller of controlled end external control equipment, but,
On the one hand during Electronic control, from the feedback starting to change to start to control, there is response time delay, ring
Between Ying Shi, the cost of the shortest then Electronic control is the highest, and on the other hand reliability to be improved can only use high cost
Electrical equipment, and need periodic maintenance.
Embodiment 3
The present embodiment afflux blade centre of gravity vertical axis windmill is such as Figure 17, shown in 18, with embodiment 1 phase
Ratio, its wheel carrier structure is different: pylon 1 top is rotationally connected with the power input shaft 13 of load, and power is defeated
The axis entering axle 13 is vertically arranged；The three-flange 10-6 forming center of rotation it is provided with in the middle part of transmission frame 6,
Three-flange 10-6 is fixing with power input shaft 13 to be connected；Three-flange is constituted the most about with pylon top
That restraints horizontally rotates pair.
Specifically, in regular polygon and be provided with truss 10 in the middle part of transmission frame 6；Truss 10 includes one
Three-flange 10-6, three-flange 10-6 are fixing with power input shaft 13 to be connected, three-flange 10-6 circumference
Be evenly equipped with the loading arm 10-3 radially extended, loading arm 10-3 end respectively with transmission frame 6 in the middle part of the most polygon
The each summit of shape (also can limit each with regular polygon middle part be connected, as shown in figure 19, when truss 10 load-bearing
Arm 10-3 end respectively with transmission frame 6 in the middle part of the middle part on each limit of regular polygon be connected time, in the middle part of transmission frame 6
The connecting rod 10-7 being connected with loading arm end it is additionally provided with) between the adjacent both sides of regular polygon.
In addition to the implementation, the present invention can also have other embodiments, such as:
(1) transmission frame 6 can there to be various structures form, in the middle part of transmission frame 6 can in equilateral triangle, pros
Shape, regular pentagon, regular hexagon etc..Part is for example such as Figure 19 to Figure 28 institute without main axle structure
Showing, its truss includes loading arm 10-3 and three-flange 10-6.Part is for the example of embodiment 1,2
As shown in Figure 29 to Figure 30, the wherein company of being additionally provided with between the adjacent loading arm 10-3 of truss 10 in Figure 30
Bar 10-8.Wherein, in Figure 26 to Figure 28, in regular hexagon in the middle part of transmission frame 6.
(2) connect frame 7 can there to be various structures form, connect in the middle part of frame 7 can in equilateral triangle, pros
Shape, regular pentagon, regular hexagon etc.；Few examples is as shown in Figure 31 to Figure 37, wherein, and Tu32Zhong,
Connect and be additionally provided with connecting rod 7-2 between the adjacent spoke of regular polygon in the middle part of frame 7；Figure 37 connects in frame 7
Portion is regular hexagon.
(3) in the truss 10 of embodiment 1,2, a muscle 10-5 can have one or more, as
Shown in Figure 38 to Figure 39.
(4) as shown in figure 40, support member 11 can be for the most in the middle part of the transmission frame 6 that is connected, connection frame 7
The straight-bar of each corresponding vertex of limit shape.Or, as shown in figure 41, support member 11 include be connected transmission frame 6,
Connect in the middle part of frame 7 dual-side of the straight-bar 11-1, straight-bar 11-1 of each corresponding vertex of regular polygon and summit it
Between be additionally provided with diagonal brace 11-2.
(5) fixture also can use following structure: as shown in figure 42, fixture for have two outer ends and
The " V " shape part 8 of one corner end, two outer end 8-1 of " V " shape part respectively with blade face inwardly or the leaf of blade
Sheet end face is connected, and connection is fixed at the corner end 8-2 of " V " shape part and transmission frame, the middle part being connected frame spoke
Or be rotationally connected；Or, fixture is one end and transmission frame or be connected that the spoke of frame is fixing to be connected or rotate
The straight plate (not shown) that connection, the other end are connected with blade blade face inwardly.Use the fixing of this structure
After part, implementing the structure that power controls is: fixture is near the position of blade and transmission frame or is connected frame spoke
The telescopic controller in order to moving blade angle it is provided with between bar.
Additionally, above-described embodiment is given be two connect that frames 7 and transmission frame 6 formed pair
Rotating fields, also can arrange on this basis more be connected frame be connected connection frame, formed three layers with
On structure.
The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection of application claims
Scope.
Claims (10)
1. an afflux blade centre of gravity vertical axis windmill, including the fixing tower determining vertical rotation axis
Frame and the wind wheel being supported on pylon, described wind wheel horizontally rotates pair with pylon composition axial constraint；Its
Feature is, described wind wheel includes that center of rotation is supported in the wheel carrier of described pylon and is distributed in described wheel
The afflux blade of frame periphery；Described afflux blade is by one group of arranged in parallel and the wing that leaves space each other
Sheet is constituted, the described vertical extension of afflux blade and have streamlined cross-section；Described wheel carrier includes one group of circumference
The uniform horizontal-extending and spoke of upper and lower corresponding；The spoke of described wheel carrier respectively constitutes a center of rotation and props up
Supportting the transmission frame in pylon and at least one connection frame, described connection frame is through support member and adjacent company
Connect frame or the fixing connection of transmission frame；Described transmission frame, connect frame spoke outer end respectively with blade upper,
Lower corresponding site is directly fixed to connect or fix with the fixture being fixed on blade and is connected or is rotationally connected.
The most according to claim 1, afflux blade centre of gravity vertical axis windmill, is characterized in that, described
Wheel carrier uses the first structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is arranged by about two and same
First, second flange of axle, and be distributed in first, second flange circumference respectively and radially extend
Loading arm and reinforcement arm are constituted, the end of described loading arm and reinforcement arm respectively with transmission frame in the middle part of the most polygon
The each summit of shape is connected；It is provided with at least one muscle between corresponding loading arm and reinforcement arm；Described first,
Second flange formed transmission frame center of rotation, and with pylon top constitute axial constraint horizontally rotate pair.
The most according to claim 2, afflux blade centre of gravity vertical axis windmill, is characterized in that, described
Wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged main shaft or the power of load
Power shaft, described first, second flange is coaxially connected with main shaft or power input shaft respectively；Described leaf
Concave and inwardly the aerofoil of each fin of sheet aerofoil outwardly is convex, and the space between adjacent fins is song
Linear.
The most according to claim 1, afflux blade centre of gravity vertical axis windmill, is characterized in that, described
Wheel carrier uses the second structure:
In regular polygon and be provided with truss in the middle part of described transmission frame；Described truss is by three-flange and uniform
Constitute in three-flange circumference and the loading arm that radially extends, described loading arm end respectively with transmission frame
The middle part on each summit of regular polygon, middle part or each limit of regular polygon is connected；When described truss loading arm end
End respectively with transmission frame in the middle part of the middle part on each limit of regular polygon be connected time, regular polygon in the middle part of described transmission frame
The connecting rod being connected with loading arm it is additionally provided with between adjacent both sides；Described three-flange forms the rotation of transmission frame
Center, and with pylon top constitute axial constraint horizontally rotate pair.
The most according to claim 4, afflux blade centre of gravity vertical axis windmill, is characterized in that, described
Wind wheel also includes being rotationally connected with pylon top and axis is vertically arranged main shaft or the power of load
Power shaft, described three-flange is coaxially connected with main shaft or with power input shaft；The each fin of described blade
Concave and inwardly the aerofoil of aerofoil outwardly is convex, and the space between adjacent fins is curvilinear.
6., according to afflux blade centre of gravity vertical axis windmill described in any one of claim 1 to 5, it is special
Levying and be, described fixture is for having the outer peripheral plate of streamlined, the plate face of described plate and vane end faces
Being connected, described plate is extended with prominent ear, described prominent ear and transmission frame, company towards transmission frame or connection frame
Connect the fixing connection in outer end of frame spoke or be rotationally connected；Or, described fixture is for having outside streamlined
The garter spring of edge, described garter spring inward flange hoop is in blade circumference, and described garter spring outward flange is towards transmission frame or connection
Frame is extended with prominent ear, described prominent ear and transmission frame, is connected that the outer end of frame spoke is fixing to be connected or rotate
Connect；Or, described fixture is to have two outer ends and the " V " shape part of a corner end, described " V "
Two outer ends of shape part are connected with the blade face inwardly of blade or vane end faces respectively, the corner of described " V " shape part
Hold the fixing connection in middle part with transmission frame, being connected frame spoke or be rotationally connected；Or, described fixture is
One end and transmission frame or be connected the spoke of frame fixing connect or be rotationally connected, the other end and blade blade face inwardly
The straight plate being connected.
7., according to afflux blade centre of gravity vertical axis windmill described in any one of claim 1 to 5, it is special
Levying and be, side and transmission frame that described fixture towards transmission frame or connects frame or be connected between frame spoke sets
Have the telescopic controller in order to moving blade angle, or, described fixture near the position of blade with
It is provided with the telescopic controller in order to moving blade angle between transmission frame or connection frame spoke；Described control
Device is elastomeric element, or, described controller is the electric controller of controlled end external control equipment.
8., according to afflux blade centre of gravity vertical axis windmill described in any one of claim 1 to 5, it is special
Levy and be, the most with connect that identical in shape in the middle part of frame and each corresponding sides are parallel to each other in the middle part of described transmission frame
Limit shape；In the middle part of described transmission frame each summit of regular polygon be connected warp between each summit of regular polygon in the middle part of frame
Support member is connected；Described support member is the X-shaped part with four ends, described X-shaped part top
Two ends, two ends, bottom respectively with transmission frame or be connected two adjacent vertexs of frame and be connected, and described X-shaped part
It is positioned at transmission frame and connects the same side of frame；Or, described support member is the transmission frame that is connected, connects in frame
The straight-bar of each corresponding vertex of portion's regular polygon；Or, described support member includes be connected transmission frame, connection frame
The straight-bar of the middle part each corresponding vertex of regular polygon, is additionally provided with diagonal brace between described straight-bar and the dual-side on summit.
The most according to claim 8, afflux blade centre of gravity vertical axis windmill, is characterized in that, described
The company's of being additionally provided with muscle between adjacent spoke outside regular polygon in the middle part of transmission frame；In the middle part of described connection frame the most
Connecting rod it is additionally provided with between the adjacent spoke of limit shape, or, phase outside regular polygon in the middle part of described connection frame
It is additionally provided with connecting rod between adjacent spoke.
10. according to afflux blade centre of gravity vertical axis windmill described in any one of claim 1 to 5, its
Feature is, described connection frame has at least two and forms at least two-layer spoke, every layer of spoke with transmission frame
It is separately installed with the blade of correspondence, the blade stagger distribution that adjacent two layers spoke is installed.
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| CN201410178054.7A CN103939284B (en) | 2014-04-29 | 2014-04-29 | Afflux blade centre of gravity vertical axis windmill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104500330B (en) * | 2014-12-15 | 2016-01-20 | 山东大学 | With the vertical axis windmill of layering dislocation combination type vane |
| CN106837684B (en) * | 2015-12-10 | 2019-08-20 | 李亦博 | Efficient vertical axis wind energy conversion system |
| CN105888969B (en) * | 2016-06-02 | 2018-05-01 | 胡立 | A kind of vertical axis aerogenerator of fake regulation blade angle |
| CN107842465A (en) * | 2016-09-18 | 2018-03-27 | 李亦博 | Wind wheel mounted model vertical axis aerogenerator |
| EP3514372A4 (en) * | 2016-09-18 | 2019-09-18 | Li, Yibo | Shielding blade supporting piece type vertical axis wind turbine |
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| RU2273765C1 (en) * | 2004-11-10 | 2006-04-10 | Московский государственный университет инженерной экологии | Wind motor |
| CN203548066U (en) * | 2013-09-24 | 2014-04-16 | 江苏莘翔机电有限公司 | Novel vertical wind power generator for off-grid detection station |
| CN203847325U (en) * | 2014-04-29 | 2014-09-24 | 苏州飞能可再生能源科技有限公司 | Low-gravity-center vertical axis wind turbine with flow concentration blades |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090261595A1 (en) * | 2008-04-17 | 2009-10-22 | Hao-Wei Poo | Apparatus for generating electric power using wind energy |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2273765C1 (en) * | 2004-11-10 | 2006-04-10 | Московский государственный университет инженерной экологии | Wind motor |
| CN203548066U (en) * | 2013-09-24 | 2014-04-16 | 江苏莘翔机电有限公司 | Novel vertical wind power generator for off-grid detection station |
| CN203847325U (en) * | 2014-04-29 | 2014-09-24 | 苏州飞能可再生能源科技有限公司 | Low-gravity-center vertical axis wind turbine with flow concentration blades |
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