CN115324819B - Magnus type vertical axis wind wheel and wind turbine - Google Patents
Magnus type vertical axis wind wheel and wind turbine Download PDFInfo
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- CN115324819B CN115324819B CN202211151318.0A CN202211151318A CN115324819B CN 115324819 B CN115324819 B CN 115324819B CN 202211151318 A CN202211151318 A CN 202211151318A CN 115324819 B CN115324819 B CN 115324819B
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- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
- F03D3/007—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical using the Magnus effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/201—Rotors using the Magnus-effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/211—Rotors for wind turbines with vertical axis
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a magnus type vertical axis wind wheel and a wind turbine, which belong to the technical field of wind power driving equipment, wherein the wind wheel comprises a wind wheel frame, a rotating shaft, cylindrical rotors and wind shields, the two cylindrical rotors are driven by a driving part and are arranged at two ends of the wind wheel frame, the two wind shields are correspondingly arranged at the inner sides of the two cylindrical rotors, the middle part of each wind shield is in rotary fit with the wind wheel frame, and an eccentric mechanism drives the wind shields to deflect to inhibit the magnus force applied to the cylindrical rotors; the wind wheel frame is fixed on the rotating shaft. The magnus force is controlled through the wind shield, and is basically not influenced when the windward cylindrical rotor pushes the wind wheel to rotate, and is reduced when the leeward cylindrical rotor inhibits the wind wheel from rotating, so that the rotation of the wind wheel is realized. The invention can realize the smooth rotation of the rotor of the vertical axis wind turbine, thereby ensuring the normal operation of the wind turbine.
Description
Technical Field
The invention belongs to the technical field of wind power driving equipment, and particularly relates to a Magnus type vertical axis wind wheel and a wind turbine.
Background
The rotating cylinder in the fluid is subjected to a force perpendicular to the axis of rotation and to the direction of flow, a phenomenon known as the magnus effect. In a magnus-type vertical axis wind turbine, the rotational torque of the vertical axis wind turbine is obtained by magnus forces. However, the direction of the magnus force is always perpendicular to the cylinder rotation direction and the incoming wind direction, and the magnitude of the magnus force is determined by the wind speed and the rotation speed of the cylinder rotor. However, in a vertical axis wind turbine, when the rotary cylinder rotates in one direction, the magnus force generated is in the same direction on the upwind side and the downwind side, and the rotational torque of the wind wheel as the vertical axis wind turbine is offset, so that the rotary cylinder cannot be directly used as the vertical axis wind turbine rotor.
At present, one of the methods for solving the problems is to change the rotation direction of the cylinder on the windward side and the leeward side respectively, but when the method is adopted, the rotation direction of the cylinder needs to be frequently switched, which can generate loss for the device and the driving motor, greatly reduce the service life, and the cylinder also needs a certain time for accelerating the direction change after decelerating at a high rotating speed, which can possibly lead the rotation direction of the cylinder to be switched without keeping up with the rotation of the wind wheel, so that the efficiency of the device is reduced.
In addition, there is another solution: the method comprises the steps that a set of rotating cylinders with opposite rotating directions are used, the rotating cylinders are arranged along the inner side and the outer side of a wind wheel, the magnus of the downwind rotor is reduced through the shielding effect of the upwind magnus rotor on the downwind direction, when the rotating cylinders are positioned on the upwind side, the outer side rotor is positioned on the upwind direction, the inner side rotor is positioned on the downwind direction, and the wind wheel generates torque along the magnus force direction of the outer side rotor; when the rotary cylinder group is on the leeward side, the outer rotor is in the leeward direction, and the inner rotor is in the upwind direction. In this way, the windwheels on the windward side and the leeward side can generate rotation torque in the same direction. The method can effectively solve the problem of frequent switching of the rotation of the cylinders, but the cost is correspondingly increased because two rotation cylinders are required to be driven at the same time.
Disclosure of Invention
The invention aims to provide a magnus type vertical axis wind wheel and a wind turbine power machine, and aims to solve the technical problem that a wind wheel consisting of a plurality of rotating cylinders cannot be directly used on a vertical axis wind turbine due to negative torque generated by magnus effect in the prior art, and the working efficiency of the wind turbine is affected.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a magnus's vertical axis wind wheel, the wind wheel includes rectangle wind wheel frame, pivot, two cylinder rotors and two deep bead, the cylinder rotor is driven by drive unit and set up in the both ends of wind wheel frame, and with wind wheel frame normal running fit, two deep bead correspond set up in the inboard of two cylinder rotors, the middle part of two deep bead all with wind wheel frame normal running fit, the movable end of deep bead links to each other with eccentric mechanism, eccentric mechanism is used for driving the deep bead and rotates the negative moment of the magnus's that suppresses the cylinder rotor and receive; the middle part of the wind wheel frame is fixedly connected with the rotating shaft. The driving part supplies power through the conductive slip ring, the conductive slip ring is arranged at the lower side of the rotating shaft, and a wire connecting the driving part and the conductive slip ring is arranged inside the wind wheel frame and the rotating shaft.
Preferably, the side of the wind shield is rectangular flat plate, the middle part of the wind shield is in running fit with the wind wheel frame, and the movable end of the wind shield is connected with the eccentric arm of the eccentric mechanism in a running mode.
Preferably, the two side surfaces of the wind shield are gradually close to each other from the movable end to the free end, and the movable end of the wind shield is an arc surface.
Preferably, the middle part of the wind shield is provided with a through hole in running fit with a fixed rod, and the two ends of the fixed rod are fixedly connected with the upper frame and the lower frame of the wind wheel frame; the movable end of the wind shield is provided with a through hole matched with the movable rod, and the lower end of the movable rod is in running fit with the tail end of the eccentric arm of the eccentric mechanism.
Preferably, the eccentric mechanism comprises an eccentric base and two eccentric arms, wherein the eccentric base is provided with an eccentric seat, the eccentric seat is sleeved on the outer side of the rotating shaft, a gap is arranged between the eccentric seat and the outer wall of the rotating shaft, and the eccentric seat is not overlapped with the central axis of the rotating shaft; one end of the eccentric arm is in running fit with the eccentric seat, the other end of the eccentric arm is in running fit with the movable end of the wind shield, and the two eccentric arms are respectively in running fit with the eccentric seat.
Preferably, the eccentric base comprises a supporting frame and supporting legs for fixing the eccentric base, and an upper supporting plate and a lower supporting plate of the supporting frame are in running fit with the rotating shaft; the bearing is sleeved outside the eccentric seat, mounting holes matched with the bearing are formed in the end portions of the two eccentric arms, and the periphery of the eccentric seat is connected with the supporting frame through a plurality of supporting legs.
Preferably, the length of the eccentric arm is M, the distance between the fixed rod and the movable rod is L, the distance between the rotating shaft and the eccentric hole of the eccentric seat is D, and the distance between the middle fixed rod of the wind shield and the rotating shaft is R; the operation of the eccentric mechanism satisfies the following formula: M+L-D > R, D+M-L < R.
Preferably, the support frame comprises two support plates and a connecting frame at the outer side of the support plates, through holes which are in running fit with the rotating shafts are formed in the middle of the support plates, the two support plates are connected through connecting columns and the connecting frame at the outer side of the support plates, the upper end and the lower end of each connecting column are respectively connected and fixed with the two support plates, the connecting frame comprises inclined supporting rods at the outer side of each connecting column and connecting rods at the bottom of each inclined supporting rod, the lower ends of the inclined supporting rods are connected with the support plates below through connecting blocks and connecting rods, and the lower ends of every two adjacent inclined supporting rods are connected through the connecting rods.
The invention also provides a wind turbine, which comprises the magnus type vertical axis wind wheel and a frame, wherein the rotating shaft is connected with the frame through a transmission mechanism.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the invention controls the magnus force by the wind shield by arranging the wind shield on the inner side of the cylindrical rotor, the magnus force is not affected basically when the cylindrical rotor on the windward side pushes the wind wheel to rotate, and the magnus force is reduced when the cylindrical rotor on the leeward side inhibits the wind wheel from rotating, thereby realizing the rotation of the wind wheel. The invention can realize the smooth rotation of the rotor of the vertical axis wind turbine, thereby ensuring the normal operation of the wind turbine.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of a magnus-type vertical axis wind turbine according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the eccentric seat at A in FIG. 1;
FIG. 3 is a schematic view of the eccentric seat of FIG. 1;
FIG. 4 is a schematic view of the working principle of the wind deflector according to the invention;
FIG. 5 is a diagram of the upwind and downwind definition of a wind turbine according to the present invention;
FIG. 6 is a magnus force direction definition diagram;
FIG. 7 is a schematic diagram of the force applied to the cylindrical rotor and the wind deflector by the eccentric mechanism in an embodiment of the present invention when the wind direction is 0 ° to the wind wheel frame;
FIG. 8 is a force diagram of the cylindrical rotor and wind deflector with the wind wheel frame rotated 45 counter-clockwise in FIG. 7;
FIG. 9 is a force diagram of the cylindrical rotor and wind deflector with the wind wheel frame rotated 135 counterclockwise in FIG. 7;
FIG. 10 is a schematic view of the motion trajectories of the fixed and movable bars during rotation of the rotor, and a schematic view of the triangle formed by the main shaft, eccentric arm and wind deflector when the main shaft, eccentric shaft and fixed bar are collinear;
FIG. 11 is a schematic view of the motion trajectories of the fixed and movable bars during rotation of the rotor, and a schematic view of the triangle formed by the main shaft, eccentric shaft, and movable bars when co-linear with the eccentric arm and wind deflector;
in the figure: the wind turbine comprises a 1-cylindrical rotor, a 2-wind shield, a 3-movable rod, a 4-driving component, a 5-fixed rod, a 6-eccentric arm, a 7-connecting block, an 8-rotating shaft, a 9-eccentric base, a 10-bearing, an 11-flange connector, a 12-wind wheel frame, a 13-Magnus force, a 14-cylindrical rotor steering, a 15-wind shield wind load tangential force, a 16-connecting rod, a 17-supporting frame, a 18-eccentric seat, a 19-connecting frame, a 20-supporting leg, a 21-base, a 22-supporting leg, a 23-supporting plate, a 24-connecting column and a 25-diagonal brace.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the magnus-type vertical axis wind wheel provided by the invention comprises a rectangular wind wheel frame 12, a rotating shaft 8, two cylindrical rotors 1 and two wind shields 2, wherein the cylindrical rotors 1 are driven by a driving component 4 and are arranged at two ends of the wind wheel frame 12 and are in rotating fit with the wind wheel frame 12, the two wind shields 2 are correspondingly arranged at the inner sides of the two cylindrical rotors 1, the middle parts of the two wind shields 2 are in rotating fit with the wind wheel frame 12, the movable ends of the wind shields 2 are connected with an eccentric mechanism, and the eccentric mechanism is used for driving the wind shields 2 to rotate so as to inhibit the magnus force applied to the cylindrical rotors 1; the middle part of the wind wheel frame 12 is fixedly connected with the rotating shaft 8. The driving component is a driving motor arranged at the bottom of the cylindrical rotor, the cylindrical rotor is driven to rotate by the driving motor, and the rotating cylindrical rotor obtains magnus force under the driving of wind power, so that the wind wheel is driven to rotate; and the wind shield is driven to swing through the eccentric mechanism, so that the negative torque of the magnus force born by the cylindrical rotor is regulated and restrained, and the normal rotation of the wind wheel is realized.
The driving part supplies power through the conductive slip ring, the conductive slip ring is arranged at the lower side of the rotating shaft, and a wire connecting the driving part and the conductive slip ring is arranged inside the wind wheel frame and the rotating shaft.
In a specific design, as shown in fig. 1 and 3, the side surface of the wind deflector 2 is rectangular flat plate, the middle part of the wind deflector 2 is in running fit with the wind wheel frame 12, and the movable end of the wind deflector 2 is in running connection with the eccentric arm 6 of the eccentric mechanism. During specific manufacturing, two side surfaces of the wind shield 2 are gradually close to each other from the movable end to the free end, and the movable end of the wind shield adopts an arc surface to reduce wind resistance; the middle part of the wind shield 2 is provided with a through hole in running fit with the fixed rod 5, and two ends of the fixed rod 5 are fixedly connected with the upper and lower frames of the wind wheel frame 12; the movable end of the wind shield 2 is provided with a through hole matched with the movable rod 3, and the lower end of the movable rod 3 is in running fit with the tail end of the eccentric arm 6 of the eccentric mechanism through a bearing. By adopting the scheme, the wind shield is made into the section form of the wing profile, when the wind shield rotates along with the wind wheel, the resistance of wind load of the wind shield to the wind wheel can be reduced, and the efficiency of the wind wheel is improved.
In addition, the wind deflector 2 may be mounted in the following manner: the middle part of the wind shield 2 is fixedly connected with a fixed rod 5, and two ends of the fixed rod 5 are in running fit with the upper and lower frames of the wind wheel frame 12; the movable end of the wind shield 2 is fixedly connected with the movable rod 3, and the lower end of the movable rod 3 is in running fit with the tail end of the eccentric arm 6 of the eccentric mechanism.
As shown in fig. 4-9, the magnus force is not substantially affected when the cylindrical rotor rotating on the windward side pushes the wind wheel to rotate, and the magnus force is reduced when the cylindrical rotor rotating on the leeward side suppresses the wind wheel to rotate, thereby achieving the effect of air flow obstruction.
In a specific embodiment of the present invention, as shown in fig. 1, the wind wheel frame 12 includes an upper frame, a lower frame, and two side frames, the cylindrical rotor 1 is rotatably matched with the two side frames of the wind wheel frame 12, the middle parts of the upper frame and the lower frame are respectively provided with a flange connecting piece 11 matched with the rotating shaft 8, and the flange connecting pieces 11 are fixedly connected with the rotating shaft 8 through jackscrews. The structure can simplify the wind wheel structure, thereby reducing the weight of the wind wheel.
As shown in fig. 1-3, the eccentric mechanism comprises an eccentric base 9 and two eccentric arms 6, wherein an eccentric seat 18 is arranged on the eccentric base 9, the eccentric seat 18 is sleeved on the outer side of the rotating shaft 8, a gap is arranged between the eccentric seat 18 and the outer wall of the rotating shaft 8, and the eccentric seat 18 is not coincident with the central axis of the rotating shaft 8; one end of the eccentric arm 6 is in running fit with the eccentric seat 18, the other end of the eccentric arm 6 is in running fit with the movable end of the wind deflector 2, and the two eccentric arms 6 are respectively in running fit with the eccentric seat 18. Wherein, the eccentric base 9 comprises a supporting frame 17 and supporting legs 20 for fixing the eccentric seat 18, and an upper supporting plate 23 and a lower supporting plate 23 of the supporting frame 17 are in running fit with the rotating shaft 8; the bearing 10 is sleeved outside the eccentric seat 18, mounting holes matched with the bearing 10 are formed in the end portions of the two eccentric arms 6, and the periphery of the eccentric seat 18 is connected with the supporting frame 17 through a plurality of supporting legs 20. In the rotating process of the wind wheel frame, the wind shields and the eccentric arms rotate along with the wind wheel frame, and the two eccentric arms are utilized to drive the two wind shields to deflect.
Specifically, as shown in fig. 3, the supporting leg 20 includes a base 21 and an arc-shaped leg 22, the base 21 is fixed on the edge of the upper supporting plate 23, the lower end of the leg 22 is connected with the base 21, and the upper end is connected with the eccentric seat 18.
In order to meet the light design requirement, as shown in fig. 1, the supporting frame 17 comprises two supporting plates 23 and a connecting frame 19 on the outer side of the two supporting plates, through holes matched with the rotating shaft 8 are formed in the middle of each supporting plate 23, the two supporting plates 23 are connected through connecting columns 24 and the connecting frame 19 on the outer side of the two supporting plates, the upper end and the lower end of each connecting column 24 are respectively connected and fixed with the two supporting plates 23, each connecting frame 19 comprises an inclined supporting rod 25 on the outer side of each connecting column 24 and a connecting rod 16 on the bottom of each inclined supporting rod 25, the lower ends of the inclined supporting rods 25 are connected with the supporting plates 23 below through connecting blocks and the connecting rods 16, and the lower ends of the two adjacent inclined supporting rods 25 are connected through the connecting rods 16. When in installation, the lower ends of the diagonal braces 25 and the connecting rods 16 are arranged on the connecting blocks 7. The structure is convenient to process and manufacture, the manufacturing cost can be reduced, and meanwhile, the assembly is convenient.
As shown in fig. 5, the length of the eccentric arm 6 is M, the distance between the fixed rod 5 and the movable rod 3 is L, the distance between the rotating shaft 8 and the eccentric hole of the eccentric seat 18 is D, and the distance from the fixed rod 5 to the rotating shaft 8 in the middle of the wind deflector 2 is R; the operation of the eccentric mechanism satisfies the following formula: M+L-D > R, D+M-L < R. When R is collinear with D, a triangle is formed with M, L; when M and D are collinear, a triangle is formed with R, L, and through the limitation, the smooth rotation of the wind wheel can be ensured, and the phenomenon that the wind wheel is blocked and cannot rotate is avoided.
As shown in fig. 10 and 11, the motion trace of the fixing lever is: a solid line circle with the rotating shaft as the center and the distance R from the fixed rod to the rotating shaft as the radius; the moving track of the movable rod is as follows: the center shaft of the eccentric seat is used as the center of a circle, and the length M of the eccentric arm is used as a dotted line circle with radius. The shaded area in fig. 10 and 11 is the area of the wind deflector that is swept between the fixed and movable bars during rotation.
In order to facilitate the study of the stress conditions of the cylindrical rotor and the wind shield, it is assumed that the incoming wind direction is unchanged, and the wind wheel rotates anticlockwise in fig. 7. During rotation of the rotor, the cylindrical rotor is subjected to magnus forces at several typical angles and the wind deflector is subjected to tangential forces as shown in fig. 7-9, in which the wind load tangential forces 15 of the wind deflector refer to the tangential forces to which the wind deflector is subjected, i.e. the component of the wind resistance acting on the wind deflector in the tangential direction of the wind wheel rotation trajectory. The working principle of the invention is as follows:
the movable end of the wind shield is controlled through the eccentric arm, when the cylindrical rotor revolves along with the wind wheel, the wind shield can adjust the windward area relative to incoming wind, and when the wind shield is positioned on the leeward side of the wind wheel, the windward area is larger, so that the magnus effect can be weakened, and the negative torque can be reduced; when the wind shield is positioned on the windward side, the windward area is smaller, the influence on the Magnus force is weaker, and the received wind resistance is smaller.
The invention also provides a wind turbine, which comprises the magnus type vertical axis wind wheel and a frame, wherein the rotating shaft is connected with the frame through a transmission mechanism, and the magnus type vertical axis wind wheel is used for providing a power source. All wind turbines comprising the magnus-type vertical axis wind wheel are within the protection scope of the invention. The wind turbine can be applied to power generation or used for water lifting irrigation and the like.
The working process of the invention is as follows: an external power supply supplies power to the driving part through a conductive slip ring arranged at the bottom of the rotating shaft, and the driving motor part drives the cylindrical rotor to rotate, so that conditions are created for generating a Magnus effect; when the incoming wind passes through the cylindrical rotor, the generated magnus force pushes the wind wheel to rotate; the wind shield is adjusted along with the rotation of the eccentric wheel mechanism by the wind wheel, the angle and the windward area of the wind shield are changed, the aerodynamic force of the cylindrical rotor is adjusted, and the continuous rotation of the wind wheel is realized.
The working principle of the wind shield in the invention is as follows: the installation of a wind deflector on the upwind side of the cylindrical rotor can affect the flow of air around the cylindrical rotor. When the wind deflector is in the upwind direction of the cylindrical rotor, the eccentric wheel mechanism adjusts the windward area of the wind deflector to be large, and at the moment, the wind deflector can reduce the speed of wind flowing through the cylindrical rotor, so that the magnus force can be obviously weakened. When the wind shield is positioned in the downwind direction of the cylindrical rotor, the eccentric wheel mechanism adjusts and reduces the windward area of the wind shield, and at the moment, the wind shield has weak influence on the magnus force of the cylindrical rotor, and the blocking effect on incoming wind is also reduced, so that wind can smoothly flow.
Through the arrangement of the wind shields, the wind wheel with the vertical shaft can generate torque difference on the upwind side and the downwind side, and further the rotation of the wind wheel is guaranteed.
In summary, the invention has the advantages of compact structure and large fan driving force, the deflection of the wind shield is regulated by the eccentric mechanism, so that the magnus force born by the cylindrical rotor is controlled, the magnus force is not affected basically when the windward cylindrical rotor pushes the wind wheel to rotate, and the magnus force is reduced when the leeward cylindrical rotor suppresses the rotation of the wind wheel, thereby realizing the rotation of the wind wheel and further realizing the smooth operation of the vertical axis wind turbine.
In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed above.
Claims (6)
1. A magnus-type vertical axis wind wheel, characterized in that: the wind wheel comprises a rectangular wind wheel frame, a rotating shaft, two cylindrical rotors and two wind shields, wherein the cylindrical rotors are driven by a driving part and are arranged at two ends of the wind wheel frame and are in running fit with the wind wheel frame, the two wind shields are correspondingly arranged at the inner sides of the two cylindrical rotors, the middle parts of the two wind shields are in running fit with the wind wheel frame, the movable ends of the wind shields are connected with an eccentric mechanism, and the eccentric mechanism is used for driving the wind shields to rotate so as to inhibit the magnus force born by the cylindrical rotors; the middle part of the wind wheel frame is fixedly connected with the rotating shaft; the side surface of the wind shield is rectangular flat plate-shaped, the middle part of the wind shield is in rotary fit with the wind wheel frame, and the movable end of the wind shield is rotationally connected with the eccentric arm of the eccentric mechanism;
the middle part of the wind shield is provided with a through hole in running fit with the fixed rod, and the two ends of the fixed rod are fixedly connected with the upper and lower frames of the wind wheel frame; the movable end of the wind shield is provided with a through hole matched with the movable rod, and the lower end of the movable rod is in running fit with the tail end of the eccentric arm of the eccentric mechanism;
the eccentric mechanism comprises an eccentric base and two eccentric arms, wherein the eccentric base is provided with an eccentric seat, the eccentric seat is sleeved on the outer side of the rotating shaft, a gap is arranged between the eccentric seat and the outer wall of the rotating shaft, and the eccentric seat is not overlapped with the central axis of the rotating shaft; one end of the eccentric arm is in running fit with the eccentric seat, the other end of the eccentric arm is in running fit with the movable end of the wind shield, and the two eccentric arms are respectively in running fit with the eccentric seat.
2. The magnus-type vertical axis wind turbine of claim 1, wherein: the two side surfaces of the wind shield are gradually close to each other from the movable end to the free end, and the movable end of the wind shield is an arc surface.
3. The magnus-type vertical axis wind turbine of claim 1, wherein: the eccentric base comprises a supporting frame and supporting legs for fixing the eccentric base, and an upper supporting plate and a lower supporting plate of the supporting frame are in running fit with the rotating shaft; the eccentric seat is externally sleeved with a bearing, the end parts of the two eccentric arms are respectively provided with a mounting hole matched with the bearing, and the periphery of the eccentric seat is connected with the supporting frame through a plurality of supporting legs.
4. A magnus-type vertical axis wind turbine as claimed in claim 3 wherein: the length of the eccentric arm is M, the distance between the fixed rod and the movable rod is L, the distance between the rotating shaft and the eccentric hole of the eccentric seat is D, the distance from the fixed rod in the middle of the wind shield to the rotating shaft is R, and the operation of the eccentric mechanism meets the following formula: M+L-D > R, D+M-L < R.
5. A magnus-type vertical axis wind turbine as claimed in claim 3 wherein: the support frame includes two backup pads and the link in the outside thereof, the middle part of backup pad is equipped with the through-hole with pivot normal running fit, and two backup pads pass through the spliced pole and link in the outside thereof links to each other, the upper and lower both ends of spliced pole are connected fixedly with two backup pads respectively, the link includes the diagonal brace in the spliced pole outside and the connecting rod of bottom thereof, the lower extreme of diagonal brace passes through connecting block and connecting rod and links to each other with the below backup pad, and two adjacent diagonal brace lower extreme passes through the connecting rod and links to each other.
6. A wind turbine, characterized by: comprising the magnus-type vertical axis wind wheel as claimed in any one of claims 1 to 5 and a frame, said shaft being connected to the frame by a transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151318.0A CN115324819B (en) | 2022-09-21 | 2022-09-21 | Magnus type vertical axis wind wheel and wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151318.0A CN115324819B (en) | 2022-09-21 | 2022-09-21 | Magnus type vertical axis wind wheel and wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115324819A CN115324819A (en) | 2022-11-11 |
| CN115324819B true CN115324819B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211151318.0A Active CN115324819B (en) | 2022-09-21 | 2022-09-21 | Magnus type vertical axis wind wheel and wind turbine |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010043529A (en) * | 2008-07-14 | 2010-02-25 | Matsumoto Engineering:Kk | Windmill |
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| DE102010055687B4 (en) * | 2010-12-22 | 2015-01-15 | Airbus Defence and Space GmbH | Wind power hybrid rotor |
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| WO2011085615A1 (en) * | 2010-01-14 | 2011-07-21 | 上海凡鸿环保科技发展有限公司 | Vertical shaft wind power generating system and blade angle automatic regulating device thereof |
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| CN115324819A (en) | 2022-11-11 |
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