CN103939284A - Vertical-axis wind turbine with flow collection blades and low gravity center - Google Patents
Vertical-axis wind turbine with flow collection blades and low gravity center Download PDFInfo
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Abstract
The invention relates to a vertical-axis wind turbine with flow collection blades and a low gravity center. The vertical-axis wind turbine comprises a fixed tower and a wind wheel, wherein the fixed tower is used for determining a vertical rotation axis, the wind wheel is supported on the tower, and the wind wheel and the tower form a horizontal rotation pair constrained axially; the wind wheel comprises a wheel frame and the flow collection blades, the rotation center of the wheel frame is supported on the tower, and the flow collection blades are distributed around the wheel frame; each flow collection blade is composed of a set of fins distributed in parallel at intervals, and the flow collection blades vertically extend and are provided with streamline-shaped sections; the wheel frame is composed of a set of spokes circumferentially distributed, extending horizontally and corresponding to one another in an up-down mode, and the outer ends of the spokes corresponding to one another in the up-down mode are fixedly connected or rotatably connected with upper corresponding portions and lower corresponding portions on the blades. By means of the structure, wind energy utilization performance of the flow collection blades can be fully used.
Description
Technical field
The present invention relates to a kind of vertical axis windmill, especially a kind of afflux blade centre of gravity vertical axis windmill, belongs to technical field of wind power generating equipment.
Background technique
According to the applicant understood, in the wind power generating set of operation, the wind energy conversion system overwhelming majority used 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 in the market, and wherein low wind speed poor performance, at average annual wind speed
the regional economical operation bad economic results of meter per second.In addition, this class wind energy conversion system operation noise is large, meeting produces infrasonic wave, be not suitable for using in city and community, but also the living environment that can endanger birds.
In addition, also have vertical axis windmill, the feature of this type of wind energy conversion system is that calm tropism requires, noise is little, does not produce infrasonic wave.Compared with horizontal-shaft wind turbine, vertical axis windmill can utilize dimensional airfoil blade, can utilize the lift of blade, can utilize again the thrust (also claiming resistance) of blade; When the each blade of its wind wheel is different in the time that wind energy conversion system moves, exert oneself, exert oneself but take over successively rotation, (vertical shaft blade rotates one week the cyclically-varying of blade load, 360 ° of variations of angle of attack experience, only have the angle of attack just can exert oneself, can not exert oneself in stall conditions at other angular ranges at approximately ± 20 ° of scope intra vanes).These features of vertical axis windmill are both advantageous and disadvantageous, and utilizing advantage, suppressing shortcoming is that research and development are applicable to average annual wind speed
the key of the vertical-shaft wind machine technology of meter per second area and urbanite's habitat environment.
Vertical axis windmill blade used has three class aerofoil profiles: the first kind is push type blade, adopts the wind wheel of such blade easily from running up, but the power coefficient Cp of such blade
max≤ 0.15 and rotating speed low, cannot be applicable to efficient wind-driven generator; Equations of The Second Kind is the symmetrical airfoil blade of lift-type, and the aerofoil profile of such blade is NACA00xy (x=1 or 2; Y=0,1 ..., 8 or 9), its Cp
maxheight, the Cp of some blade
maxcan reach 0.45, but adopt the wind wheel of such blade certainly to run up; The 3rd class is that the suction surface of lift-type is the airfoil fan that convex, pressure side have spill, and such blade quantity is numerous, its Cp
maxbetween 0.20-0.30, adopt the wind wheel of such blade certainly to run up, but play torque lower than first kind blade and Cp
maxcorresponding rotating speed is lower than Equations of The Second Kind blade.
At present, utilize the vertical axis windmill of lift-type airfoil fan, substantially adopt " Φ " wind wheel or " H " wind wheel of Darrieus technology, the common characteristic of these two kinds of wind wheels is main axis length >=wind wheel height, thereby these two kinds of wind wheel centers of gravity are higher, in order to ensure the stability of whole wind wheel, require wind wheel main shaft to there are very high strength and stiffness, cause main shaft weight very heavy.Wherein, " Φ " wind wheel forms (conventionally adopting thin airfoil blade) by the aforementioned Equations of The Second Kind blade of " rope skipping curve " shape, blade two ends are directly connected in main shaft (if will solve " Φ " wind wheel from running up, the aforementioned first kind blade of serpentine also can be connected in to main shaft).The blade that " Φ " wind wheel adopts will have enough flexibilities, its Cp
maxcorresponding tip-speed ratio λ is higher, cause " Φ " wind wheel in low wind speed poor performance." H " wind wheel great majority are crossed cantilever by aforementioned the 3rd class blade pass and are connected in main shaft and form, and tremble for suppressing blade, require cantilever to have very high strength and stiffness, cause cantilevered weights very heavy; Meanwhile, the 3rd class blade Cp
maxcorresponding Optimum Leaves width (also claiming chord length) is than the large 50-60% of aforementioned Equations of The Second Kind blade, and correspondingly, leaf weight also will weigh 80-100%.Be limited by this, under equal height, weight ratio " Φ " wind wheel of " H " wind wheel will weigh 1-2 doubly, and its centrifugal load is larger, requires higher to the strength and stiffness of main shaft.
As can be seen here, lower the center of gravity and weight reduction, increase high Cp
maxthe torque that rises of aerofoil profile is to design two technological break-through points of high-efficient wind turbine, particularly improves the break-through point of low wind speed performance in wind energy conversion system.
Inventor discloses the blower fan of a kind of vertical shaft (also claiming vertical shaft) wind power generating set in Chinese invention patent on April 4th, 2010 application, the patent No. 201010162074.7, notice of authorization CN102213180B.But this technological scheme remains in following main disadvantage: (1) interlayer support parts are too too fat to move, larger to interference in air flow, affect the Wind Power Utilization performance of blade; (2) interlayer support structure is optimized not, causes the strength and stiffness in its unit weight lower, and the strength and stiffness that reach expection still need larger weight, are unfavorable for alleviating wind wheel weight; (3) the adapting structure for electric intensity between wheel carrier and the main shaft of wind wheel is poor, but will certainly increase wind wheel weight for improving intensity, and this problem causes wind wheel to maximize; (4) cannot realize the control of wind energy conversion system power.Need badly and develop higher interlayer support structure and the adapting structure for electric of intensity in unit weight, thereby in reaching expection intensity, can not increase wind wheel weight, even alleviate wind wheel weight; Develop the structure that can realize power control simultaneously, expand the wind speed range of wind energy conversion system operation by power control, improve generated energy.
The present patent application people discloses a kind of multiple wing afflux blade that efficiently utilizes wind energy in Chinese invention patent application on May 17th, 2012 application, application number 201210152431.0, application publication number CN102661239A, belong to afflux blade, can make full use of Bernoulli effect, the fluid in the interplane territory of flowing through is produced to afflux effect, improve the Wind Power Utilization performance of blade.Develop and also need badly at present the vertical axis windmill that can effectively bring into play such blade Wind Power Utilization performance.
Summary of the invention
Technical problem to be solved by this invention is: overcome the problem that prior art exists, a kind of afflux blade centre of gravity vertical axis windmill is provided, can effectively bring into play the Wind Power Utilization performance of afflux blade.
It is as follows that the present invention solves the basic technical scheme of its technical problem:
A kind of afflux blade centre of gravity vertical axis windmill, comprises and determines the fixed gantry of vertical spin axis and be supported in the wind wheel on pylon, described wind wheel and pylon form the pair that horizontally rotates of axial constraint; It is characterized in that, described wind wheel comprises that rotating center is supported in the wheel carrier of described pylon and is distributed in the afflux blade of described wheel carrier periphery; Described afflux blade is made up of one group of parallel fin of arranging and leave each other space, the vertical extension of described afflux blade and have streamlined cross-section; Described wheel carrier comprises the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding; The spoke of described wheel carrier forms respectively a rotating center and is supported in transmission frame and at least one connecting frame of pylon, and described connecting frame is fixedly connected with adjacent connecting frame or transmission frame through supporting element; The outer end of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of blade respectively or is fixedly connected with or is rotationally connected with the fixed block that is fixed on blade.
Claimant finds through going deep into practical studies, while adopting said structure that afflux blade is fixedly connected with or is rotationally connected with wheel carrier, can effectively bring into play the Wind Power Utilization performance of afflux blade; Especially in the time that employing is rotationally connected mode, in the rotation of wind-drive wind wheel, afflux blade automatic winding under wind-force effect is rotationally connected a little and turns an angle, and makes wind energy enough farthest enter the space in afflux blade, can further give full play to the Wind Power Utilization performance of afflux blade.In addition, said structure can effectively reduce wind wheel center of gravity, reduces wind wheel weight.
Preferably, described wheel carrier adopts the first structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is arranged up and down by two and first, second coaxial flange, and the loading arm that is distributed in respectively first, second flange and circumferentially and radially extends and strengthen arm and form, described loading arm and the end of strengthening arm are connected with the each summit of regular polygon, transmission frame middle part respectively; Between corresponding loading arm and reinforcement arm, be provided with at least one muscle; Described first, second flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
More preferably, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described first, second flange is coaxially connected with main shaft or power input shaft respectively; The each fin of described blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins.
In the first structure, truss is as the adapting structure for electric between wheel carrier and main shaft, and the intensity in its unit weight is higher, can not increase wind wheel weight in intensity, even can alleviate wind wheel weight reaching expection, thereby wind wheel can effectively be maximized., adopt after the first structure, wind wheel is stressed to have good uniformity meanwhile, is more conducive to wind wheel and rotates.In addition, the first structure also can be used for the wind wheel being connected with pylon top load power input shaft.
Preferably, described wheel carrier adopts the second structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is made up of three-flange and the loading arm that is distributed in three-flange circumferentially and radially extend, and described loading arm end is connected with the middle part on the transmission frame each summit of regular polygon, middle part or the each limit of regular polygon respectively; In the time that described truss loading arm end is connected with the middle part on the each limit of regular polygon, transmission frame middle part respectively, described transmission frame middle part is also provided with the connecting rod being connected with loading arm between the adjacent both sides of regular polygon; Described three-flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
More preferably, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described three-flange and main shaft or be coaxially connected with power input shaft; The each fin of described blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins.
Thereby adopt the second structure can utilize the power input shaft of load to save the main shaft of wind wheel, can lower the center of gravity to greatest extent and alleviate wind wheel weight, reduce cost again.Simultaneously, adopt after the transmission frame of this structure, its truss is as the adapting structure for electric between wheel carrier and load power input shaft, and the intensity in its unit weight is higher, can not increase wind wheel weight in intensity, even can alleviate wind wheel weight reaching expection, thereby wind wheel can effectively be maximized.In addition, the second structure also can be used for the wind wheel being connected with pylon top main shaft.
Preferably, described fixed block is for having the outer peripheral plate of streamline, plate face and the vane end faces of described plate are connected, and described plate is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described fixed block is for having the outer peripheral garter spring of streamline, described garter spring inward flange hoop is circumferential in blade, and described garter spring outward edge is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described fixed block is " V " shape part with two outer ends and a corner end, two outer ends of described " V " shape part are connected with blade face inwardly or the vane end faces of blade respectively, and the corner end of described " V " shape part is fixedly connected with or is rotationally connected with the middle part of transmission frame, connecting frame spoke; Or described fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the blade straight plate that blade face is connected inwardly.
Like this, fixed block itself can not affect the utilization of afflux blade to wind energy, and in the time being rotationally connected, is conducive to afflux blade and rotates swimmingly, can bring into play better the Wind Power Utilization performance of afflux blade.
For realizing the control of wind energy conversion system power, the present invention further perfect technological scheme is as follows:
Preferably, described fixed block is provided with the telescopic controller in order to rotor blade angle between a side of transmission frame or connecting frame and transmission frame or connecting frame spoke, or described fixed block is near being provided with the telescopic controller in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke; Described controller is elastic member, or described controller is the electric controller of the external control apparatus of controlled end.
In the time that being elastic member, controller can implement the control of wind energy conversion system power in the mode of the force balance between blade centrifugal force and elastic force; In the time that being electric controller, controller can implement the control of wind energy conversion system power in the mode of electronic control.Implement, after the control of wind energy conversion system power, can expand the wind speed Applicable scope of wind energy conversion system.
For simplified support structure, avoid interference air-flow, affect the Wind Power Utilization performance of blade; Meanwhile, for improving the strength and stiffness in supporting structure unit weight, in order to alleviating wind wheel weight, the present invention further perfect technological scheme is as follows:
Described transmission frame middle part is with connecting frame middle part the regular polygon that shape is identical and each corresponding sides are parallel to each other; Between the described transmission frame each summit of regular polygon, middle part and the each summit of regular polygon, connecting frame middle part, be connected through supporting element; Described supporting element is " X " shape part with four ends, and described " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame or connecting frame respectively, and described " X " shape part is positioned at the same side of transmission frame and connecting frame; Or described supporting element is to be connected the straight-bar of the each corresponding vertex of transmission frame, connecting frame middle part regular polygon; Or described supporting element comprises the straight-bar of the transmission frame that is connected, the each corresponding vertex of connecting frame middle part regular polygon, is also provided with diagonal brace between described straight-bar and the dual-side on summit.
Claimant finds through going deep into practical studies, adopts after above-mentioned preferred structure, can not only avoid interference air-flow, can also in meeting the requirement of expection Rigidity and strength, further alleviate wind wheel weight.
Preferably, the company's of being provided with muscle also between the adjacent spoke in regular polygon outside, described transmission frame middle part, plays reinforcement effect; Between the adjacent spoke of described connecting frame middle part regular polygon, be also provided with connecting rod; Or, between the adjacent spoke in regular polygon outside, described connecting frame middle part, be also provided with connecting rod, play reinforcement effect.
Preferably, described connecting frame have at least two and with transmission frame form at least two-layer spoke, every layer of spoke is separately installed with corresponding blade, the blade of installing on adjacent two layers spoke is interspersed.
The probability windward that can improve so the best angle of attack of blade, more easily runs up wind wheel, can reduce length of blade with the form of segmentation again, thereby reduces manufacture, transport and the installation cost of blade.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) by optimizing linkage structure, this body structure of wheel carrier and the blade anchor structure of blade and wheel carrier, guarantee that the Wind Power Utilization performance of afflux blade can be not fully exerted, can reduce wind wheel center of gravity and alleviate wind wheel weight simultaneously.
(2) by arranging and optimizing truss structure, make the intensity in adapting structure for electric unit weight higher, maximize thereby be conducive to wind wheel.
(3) by optimizing supporting structure, can not only avoid interference air-flow, can also further alleviate wind wheel weight by the strength and stiffness that improve in supporting structure unit weight.
(4) by segmentation, be staggered installation of blade, improved the probability windward of the best angle of attack of blade and the wind wheel that more easily runs up, and reduced manufacture, transport and the installation cost of blade.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2, Fig. 3, Fig. 4 are respectively A, B, the C regional enlarged drawing of Fig. 1.
Fig. 5, Fig. 6 are respectively the anchor structure figure in Fig. 3, Fig. 4.
Fig. 7 is the structural representation of Fig. 1 embodiment wheel carrier.
Fig. 8 is the structural representation of Fig. 1 embodiment transmission frame and truss.
Fig. 9 is the structural representation of truss in Fig. 8.
Figure 10, Figure 11 are respectively the structural representation of Fig. 1 embodiment connecting frame, supporting element.
Figure 12 to Figure 14 is the afflux blade structure 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 shaft 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 is other connecting frame schematic diagram that the present invention can use.
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 is other supporting element schematic diagram that the present invention can use.
Figure 42 is other fixed block schematic diagram that the present invention can use.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment 1
The present embodiment afflux blade centre of gravity vertical axis windmill as shown in Figures 1 to 4, comprises and determines the fixed gantry 1 of vertical spin axis and be supported in the wind wheel 2 on pylon 1, and wind wheel 2 and pylon 1 form the pair that horizontally rotates of axial constraint; Wind wheel 2 comprises that rotating center is supported in the wheel carrier 3 of pylon 1 and is distributed in the afflux blade 4 of wheel carrier 3 peripheries; As shown in Figure 12 to Figure 14, afflux blade 4 is made up of one group of parallel fin 5 of arranging and leave each other space, the vertical extension of afflux blade 4 and have streamlined cross-section; Wheel carrier 3 is made up of the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding, and the spoke outer end of upper and lower corresponding is rotationally connected with the upper and lower corresponding site of blade 4 respectively.
Particularly, as shown in Figure 7, the spoke of wheel carrier 3 forms respectively a rotating center and is supported in transmission frame 6 and at least one connecting frame 7 of pylon 1, and connecting frame 7 is fixedly connected with adjacent connecting frame 7 or transmission frame 6 through supporting element; The outer end of transmission frame 6, connecting frame 7 spokes is rotationally connected with the fixed block 8 that is fixed on blade 4 respectively; As shown in Figure 12 to Figure 14, the each fin 5 of blade 4 aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins 5.The present embodiment contains two connecting framees 7, lays respectively at the above and below of transmission frame 6, forms two-layer spoke structure, and each blade 4 is installed on respectively each layer of spoke, and the blade 4 of installing on adjacent two layers spoke is interspersed.
As shown in Figure 5 to Figure 6, the structure of fixed block 8 has two kinds: a kind of for having the outer peripheral plate of streamline, the plate face of plate and blade 4 end faces are connected, and plate is extended with outstanding ear 8-1 towards transmission frame 6 or connecting frame 7, and the outer end of outstanding ear 8-1 and transmission frame 6, connecting frame 7 spokes is rotationally connected; Another kind of in order to have the outer peripheral garter spring of streamline, garter spring inward flange hoop is circumferential in blade 4, and garter spring outward edge is extended with outstanding ear 8-1 towards transmission frame 6 or connecting frame 7, and the outer end of outstanding ear 8-1 and transmission frame 6, connecting frame 7 spokes is rotationally connected.
Wind wheel 2 also comprise be rotationally connected with pylon 1 top and axis along the main shaft 9 (as shown in Figure 2) of vertical layout.As shown in Figure 8, transmission frame 6 middle parts are regular polygon and are provided with truss 10; Truss 10 comprises that two arrange and coaxial first, second flange 10-1,10-2 up and down, first, second flange 10-1,10-2 are located at respectively main shaft 9 circumferentially and are connected with main shaft 9, first, second flange 10-1,10-2 are circumferentially evenly equipped with respectively the loading arm 10-3 radially extending and strengthen arm 10-4, and the end of loading arm 10-3 and reinforcement arm 10-4 is connected with the transmission frame 6 each summits of middle part regular polygon respectively; Between corresponding loading arm 10-3 and reinforcement arm 10-4, be provided with at least one muscle 10-5; First, second flange 10-1,10-2 form the rotating center of transmission frame 6, and form the pair that horizontally rotates of axial constraint with pylon top; In addition the company's of being provided with muscle 6-1 also between the adjacent spoke in transmission frame 6 middle part regular polygons outsides.As shown in Figure 9, between muscle 10-5, the loading arm 10-3 of truss 10, reinforcement arm 10-4, form multiple triangular support structure.
As shown in Fig. 7, Figure 10, Figure 11, transmission frame 6 middle parts are with connecting frame 7 middle parts the regular polygon that shape is identical and each corresponding sides are parallel to each other; Between the adjacent spoke in connecting frame 7 regular polygon outsides, middle part, be also provided with connecting rod 7-1; Between the transmission frame 6 each summits of middle part regular polygon and the connecting frame 7 each summits of middle part regular polygon, be connected by supporting element 11; Supporting element 11 is for having " X " shape part of four ends, and " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame 6 or connecting frame 7 respectively, and " X " shape part is positioned at the same side of transmission frame 6 and connecting frame 7.
It should be noted that, also can be fixedly connected with the outer end of transmission frame 6, connecting frame 7 spokes with upper fixing element 8, thereby blade 4 is fixedly connected 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, its basic structure is identical with embodiment 1, difference is only: fixed block 8 is provided with the telescopic controller 12 in order to rotor blade angle between a side of transmission frame 6 or connecting frame 7 and transmission frame 6 or connecting frame 7 spokes, controller 12 is elastic member, or controller 12 is the electric controller of the external control apparatus of controlled end.
Controller 12 can be elastic member, and in the time applying or cancel external force, its length can change or reply, in the time that a certain wind speed makes wind energy conversion system rotation speed change, blade centrifugal force changes thereupon, and blade turns an angle as axle center taking fixed block 8 and transmission frame 6 or being rotationally connected a little of connecting frame 7, controller 12 is elongated or shortened, thereby change the effect of air-flow to blade, this effect causes again the reverse feedback of wind energy conversion system rotating speed and blade centrifugal force to change, the elastic force of this Time Controller 12 makes the length of controller 12, wind energy conversion system rotating speed and blade centrifugal force all produce reverse feedback again to be changed, and blade is turned an angle round about, in such circulation, the amplitude of variation of each variable is more and more less, until transient equiliblium is set up, till blade no longer rotates.
Like this, on the one hand can immediate feedback and cost low, also undertaken by elastic material is instantaneous from starting to change to the feedback that starts to control, control on the other hand reliability high and non-maintaining.
In addition, controller 12 also can adopt the electric controller of the external control apparatus of controlled end, but, in the time of electronic control, from start to change to the feedback that starts to control, there is response time delay on the one hand, the response time cost of shorter electronic control is higher, will improve on the other hand reliability and can only adopt expensive electric elements, and need periodic maintenance.
Embodiment 3
The present embodiment afflux blade centre of gravity vertical axis windmill as shown in Figure 17,18, compared with embodiment 1, its wheel carrier structure difference: the power input shaft 13 of pylon 1 top and load is rotationally connected, and the axis of power input shaft 13 is along vertical layout; Transmission frame 6 middle parts are provided with the three-flange 10-6 that forms rotating center, and three-flange 10-6 is fixedly connected with power input shaft 13; Three-flange and pylon top form the pair that horizontally rotates of axial constraint.
Particularly, transmission frame 6 middle parts are regular polygon and are provided with truss 10; Truss 10 comprises a three-flange 10-6, three-flange 10-6 is fixedly connected with power input shaft 13, three-flange 10-6 is circumferentially evenly equipped with the loading arm 10-3 radially extending, loading arm 10-3 end (also can be connected with the middle part on the each limit of regular polygon with the transmission frame 6 each summits of middle part regular polygon respectively, as shown in figure 19, in the time that truss 10 loading arm 10-3 ends are connected with the middle part on the transmission frame 6 each limits of regular polygon, middle part respectively, transmission frame is also provided with the connecting rod 10-7 being connected with loading arm end between the 6 adjacent both sides of middle part regular polygon).
In addition to the implementation, the present invention can also have other mode of executions, for example:
(1) transmission frame 6 can have various structures form, and transmission frame 6 middle parts can be equilateral triangle, square, regular pentagon, regular hexagon etc.Part is for the example without main shaft structure as shown in Figure 19 to Figure 28, and its truss comprises loading arm 10-3 and three-flange 10-6.Part is used for embodiment 1,2 example as shown in Figure 29 to Figure 30, wherein in Figure 30, between the adjacent loading arm 10-3 of truss 10, is also provided with connecting rod 10-8.Wherein, in Figure 26 to Figure 28, transmission frame 6 middle parts are regular hexagon.
(2) connecting frame 7 can have various structures form, and connecting frame 7 middle parts can be equilateral triangle, square, regular pentagon, regular hexagon etc.; Part example is as shown in Figure 31 to Figure 37, and wherein, Tu32Zhong, is also provided with connecting rod 7-2 between the adjacent spoke of connecting frame 7 middle part regular polygons; In Figure 37, connecting frame 7 middle parts are regular hexagon.
(3) for embodiment 1,2 truss 10, a muscle 10-5 can have one or more, as shown in Figure 38 to Figure 39.
(4) as shown in figure 40, supporting element 11 can be the straight-bar of be connected transmission frame 6, the each corresponding vertex of connecting frame 7 middle part regular polygon.Or as shown in figure 41, supporting element 11 comprises the straight-bar 11-1 of the transmission frame 6 that is connected, the each corresponding vertex of connecting frame 7 middle part regular polygon, is also provided with diagonal brace 11-2 between straight-bar 11-1 and the dual-side on summit.
(5) fixed block also can adopt following structure: as shown in figure 42, fixed block is " V " shape part 8 with two outer ends and a corner end, two outer end 8-1 of " V " shape part are connected with blade face inwardly or the vane end faces of blade respectively, and the corner end 8-2 of " V " shape part is fixedly connected with or is rotationally connected with the middle part of transmission frame, connecting frame spoke; Or fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the blade straight plate (not shown) that blade face is connected inwardly.Adopt after the fixed block of this structure, the structure of implementing power control is: fixed block is near being provided with the telescopic controller in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke.
In addition, what in above-described embodiment, provide is two connecting framees 7 and a double layer construction that transmission frame 6 forms, and the connecting frame that more and existing connecting frame is connected also can be set on this basis, forms three layers of above structure.
All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (10)
1. an afflux blade centre of gravity vertical axis windmill, comprises and determines the fixed gantry of vertical spin axis and be supported in the wind wheel on pylon, described wind wheel and pylon form the pair that horizontally rotates of axial constraint; It is characterized in that, described wind wheel comprises that rotating center is supported in the wheel carrier of described pylon and is distributed in the afflux blade of described wheel carrier periphery; Described afflux blade is made up of one group of parallel fin of arranging and leave each other space, the vertical extension of described afflux blade and have streamlined cross-section; Described wheel carrier comprises the spoke of one group of circumferential uniform horizontal-extending and upper and lower corresponding; The spoke of described wheel carrier forms respectively a rotating center and is supported in transmission frame and at least one connecting frame of pylon, and described connecting frame is fixedly connected with adjacent connecting frame or transmission frame through supporting element; The outer end of described transmission frame, connecting frame spoke is directly fixedly connected with the upper and lower corresponding site of blade respectively or is fixedly connected with or is rotationally connected with the fixed block that is fixed on blade.
2. afflux blade centre of gravity vertical axis windmill according to claim 1, is characterized in that, described wheel carrier adopts the first structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is arranged up and down by two and first, second coaxial flange, and the loading arm that is distributed in respectively first, second flange and circumferentially and radially extends and strengthen arm and form, described loading arm and the end of strengthening arm are connected with the each summit of regular polygon, transmission frame middle part respectively; Between corresponding loading arm and reinforcement arm, be provided with at least one muscle; Described first, second flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
3. afflux blade centre of gravity vertical axis windmill according to claim 2, it is characterized in that, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described first, second flange is coaxially connected with main shaft or power input shaft respectively; The each fin of described blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins.
4. afflux blade centre of gravity vertical axis windmill according to claim 1, is characterized in that, described wheel carrier adopts the second structure:
Described transmission frame middle part is regular polygon and is provided with truss; Described truss is made up of three-flange and the loading arm that is distributed in three-flange circumferentially and radially extend, and described loading arm end is connected with the middle part on the transmission frame each summit of regular polygon, middle part or the each limit of regular polygon respectively; In the time that described truss loading arm end is connected with the middle part on the each limit of regular polygon, transmission frame middle part respectively, described transmission frame middle part is also provided with the connecting rod being connected with loading arm between the adjacent both sides of regular polygon; Described three-flange forms the rotating center of transmission frame, and forms the pair that horizontally rotates of axial constraint with pylon top.
5. afflux blade centre of gravity vertical axis windmill according to claim 4, it is characterized in that, described wind wheel also comprise be rotationally connected with pylon top and axis along the main shaft of vertical layout or the power input shaft of load, described three-flange and main shaft or be coaxially connected with power input shaft; The each fin of described blade aerofoil is outwardly spill and aerofoil is inwardly convex, the curved shape in space between adjacent fins.
6. according to afflux blade centre of gravity vertical axis windmill described in claim 1 to 5 any one, it is characterized in that, described fixed block is for having the outer peripheral plate of streamline, plate face and the vane end faces of described plate are connected, described plate is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described fixed block is for having the outer peripheral garter spring of streamline, described garter spring inward flange hoop is circumferential in blade, and described garter spring outward edge is extended with outstanding ear towards transmission frame or connecting frame, and described outstanding ear is fixedly connected with or is rotationally connected with the outer end of transmission frame, connecting frame spoke; Or, described fixed block is " V " shape part with two outer ends and a corner end, two outer ends of described " V " shape part are connected with blade face inwardly or the vane end faces of blade respectively, and the corner end of described " V " shape part is fixedly connected with or is rotationally connected with the middle part of transmission frame, connecting frame spoke; Or described fixed block is that one end is fixedly connected with or is rotationally connected with the spoke of transmission frame or connecting frame, the other end and the blade straight plate that blade face is connected inwardly.
7. according to afflux blade centre of gravity vertical axis windmill described in claim 1 to 5 any one, it is characterized in that, described fixed block is provided with the telescopic controller in order to rotor blade angle between a side of transmission frame or connecting frame and transmission frame or connecting frame spoke, or described fixed block is near being provided with the telescopic controller in order to rotor blade angle between the position of blade and transmission frame or connecting frame spoke; Described controller is elastic member, or described controller is the electric controller of the external control apparatus of controlled end.
8. according to afflux blade centre of gravity vertical axis windmill described in claim 1 to 5 any one, it is characterized in that, described transmission frame middle part is with connecting frame middle part the regular polygon that shape is identical and each corresponding sides are parallel to each other; Between the described transmission frame each summit of regular polygon, middle part and the each summit of regular polygon, connecting frame middle part, be connected through supporting element; Described supporting element is " X " shape part with four ends, and described " X " shape part both upper ends thereof, two ends, bottom are connected with two adjacent vertexs of transmission frame or connecting frame respectively, and described " X " shape part is positioned at the same side of transmission frame and connecting frame; Or described supporting element is to be connected the straight-bar of the each corresponding vertex of transmission frame, connecting frame middle part regular polygon; Or described supporting element comprises the straight-bar of the transmission frame that is connected, the each corresponding vertex of connecting frame middle part regular polygon, is also provided with diagonal brace between described straight-bar and the dual-side on summit.
9. afflux blade centre of gravity vertical axis windmill according to claim 8, is characterized in that, the company's of being provided with muscle also between the adjacent spoke in regular polygon outside, described transmission frame middle part; Between the adjacent spoke of described connecting frame middle part regular polygon, be also provided with connecting rod, or, between the adjacent spoke in regular polygon outside, described connecting frame middle part, be also provided with connecting rod.
10. according to afflux blade centre of gravity vertical axis windmill described in claim 1 to 5 any one, it is characterized in that, described connecting frame have at least two and with transmission frame form at least two-layer spoke, every layer of spoke is separately installed with corresponding blade, the blade of installing on adjacent two layers spoke is interspersed.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN201410178054.7A CN103939284B (en) | 2014-04-29 | 2014-04-29 | Afflux blade centre of gravity vertical axis windmill |
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| CN103939284A true CN103939284A (en) | 2014-07-23 |
| CN103939284B CN103939284B (en) | 2016-08-24 |
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| CN104500330A (en) * | 2014-12-15 | 2015-04-08 | 山东大学 | Vertical axis wind turbine provided with layered and staggered combined blades |
| CN106837684A (en) * | 2015-12-10 | 2017-06-13 | 苏州飞能可再生能源科技有限公司 | Efficient vertical axis wind energy conversion system |
| WO2018049826A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Shielding blade supporting piece type vertical axis wind turbine |
| WO2018049827A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Wind wheel suspension type vertical axis wind turbine |
| CN105888969B (en) * | 2016-06-02 | 2018-05-01 | 胡立 | A kind of vertical axis aerogenerator of fake regulation blade angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105888969B (en) * | 2016-06-02 | 2018-05-01 | 胡立 | A kind of vertical axis aerogenerator of fake regulation blade angle |
| WO2018049826A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Shielding blade supporting piece type vertical axis wind turbine |
| WO2018049827A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Wind wheel suspension type vertical axis wind turbine |
| CN108431402A (en) * | 2016-09-18 | 2018-08-21 | 李亦博 | Block blade support type vertical axis windmill |
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| CN103939284B (en) | 2016-08-24 |
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