Wind wheel for vertical shaft resistance type wind driven generator

Abstract

The utility model belongs to the technical field of wind driven generators, and discloses a wind wheel for a vertical shaft resistance type wind driven generator, which comprises a wind wheel support, a plurality of wind gathering scoop groups are arranged on the wind wheel support, each wind gathering scoop group comprises at least one wind gathering scoop component, and the wind gathering scoop components can rotate relative to the wind wheel support. The overall structure of the wind gathering scoop assembly comprises a wind gathering scoop, the cross section of the wind gathering scoop is in an arc groove shape, an open type arc inner cavity is formed in the wind gathering scoop, a center shaft is vertically arranged in the wind gathering scoop, the center shaft is arranged in the height direction of the wind gathering scoop, and the upper end and the lower end of the center shaft extend to the outer sides of the upper end and the lower end of the wind gathering scoop correspondingly. The wind wheel support is fixedly provided with a wind gathering scoop driving assembly used for driving the wind gathering scoop to rotate so as to adjust the angle between the windward face and the wind coming face of the wind gathering scoop. According to the utility model, the working angle of the wind gathering scoop can be intelligently adjusted in real time, so that the instantaneous position of the wind gathering scoop realizes optimal acting, and breeze starting is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbines, and specifically relates to a wind wheel for a vertical-axis drag-type wind turbine. Background Art

[0002] Wind turbines can generally be divided into two types according to the structure of the wind wheel and its position in the air flow: one is a horizontal-axis wind turbine; the other is a vertical-axis wind turbine; the horizontal-axis wind turbine is currently the most technically mature wind turbine; the wind wheel of the horizontal-axis wind turbine rotates around a horizontal axis. When working, the rotation plane of the wind wheel is perpendicular to the wind direction; the blades on the wind wheel are radially arranged, perpendicular to the rotation axis, and form an angle φ (installation angle) with the rotation plane of the wind wheel; although the horizontal-axis wind turbine is the most widely used, there are also some technical problems: high linear velocity, resulting in high noise, the operating noise is 80-90 decibels, the noise pollution is large, affecting people's normal life, and there is a radiation source, affecting the migration of migratory birds and having a great lethality to migratory birds.

[0003] Vertical-axis wind turbines can be further divided into two types: one is a drag-type wind turbine that uses the resistance of aerodynamic force to do work. Its advantages are large starting torque; slow linear velocity, low rotational speed, and low noise, and it can start generating electricity and connecting to the grid when the wind speed is level 2. The disadvantage is that the work efficiency is low when the wind speed is level 5 or level 6, and it lacks competitiveness for power generation.

[0004] The other is a lift-type wind turbine that uses the lift of an airfoil to do work. Compared with the structure of the drag-type wind turbine, this lift-type wind turbine has a higher utilization rate of wind energy, can operate at a high rotational speed, and has a high linear velocity, but its starting torque is small, and it is generally difficult to achieve self-start at low wind speeds.

[0005] The patent application number is: CN200910071705.1, which discloses a variable angle-of-attack drag and lift hybrid vertical-axis wind turbine, including a power conversion device, a generator, a generator V-belt wheel mechanism, a main shaft, a sleeve, a cantilever bracket, and blades; the main shaft is directly connected to the sleeve through a bearing outside, the sleeve is connected to the cantilever bracket, the cantilever bracket is provided with a blade rotation device, and a wind vane is arranged at the top of the main shaft; the optimal angle-of-attack control of the wind energy utilization of 4 blades driven by one motor is realized through a multiple synchronous belt mechanism; the low-voltage alternating current output by the generator is rectified by an inverter and then the direct current is charged into a battery pack to provide power for the blade rotation device; the wind vane is connected to the main controller, and the main controller controls the blade rotation device.

[0006] The existing vertical-axis wind turbines of this type use a blade rotation device to drive each blade to rotate automatically, so that the blade has an optimal angle of attack. However, when this type of existing vertical-axis wind turbine is in use, since the blade is an airfoil lift blade, the resistance to wind is still relatively small, and the wind energy cannot be fully utilized. As a result, in the case of light wind, it cannot start generating electricity. And when the wind speed is too high, the rotational speed of the wind wheel becomes large, and the blade also needs to rotate automatically, resulting in the blade tremor phenomenon, serious fatigue damage to the blade, reduced use effect, and low overall automation level, unable to fully utilize the wind energy and reducing the use effect. Summary of the Invention

[0007] The main technical problem to be solved by the present invention is to provide a wind wheel for a vertical-axis drag-type wind turbine, with a simple overall structure, which makes full use of wind energy by means of a wind-gathering hopper, enabling the wind wheel to rotate in a light wind state. And a servo drive motor drives the wind-gathering hopper to rotate, and intelligently adjusts the working angle of the wind-gathering hopper in real time, so that the instantaneous position of the wind-gathering hopper can achieve optimal work, enabling the wind wheel to obtain the maximum working force, and thus enabling the wind wheel to start in a light wind state.

[0008] To solve the above technical problems, the present invention provides the following technical solutions:

[0009] A wind wheel for a vertical-axis drag-type wind turbine includes a wind wheel support. A plurality of groups of wind-gathering hopper groups are arranged in a ring and at equal intervals on the wind wheel support. Each group of wind-gathering hopper groups includes at least one wind-gathering hopper assembly. The wind-gathering hopper assembly can rotate relative to the wind wheel support. The overall structure of the wind-gathering hopper assembly includes a wind-gathering hopper. The cross-section of the wind-gathering hopper is an arc-shaped groove. An open arc-shaped inner cavity is provided inside the wind-gathering hopper. A central axis is vertically arranged in the wind-gathering hopper. The central axis is arranged along the height direction of the wind-gathering hopper, and the upper and lower ends of the central axis respectively extend to the outside of the upper and lower ends of the wind-gathering hopper. A wind-gathering hopper drive assembly is fixedly installed on the wind wheel support for driving the wind-gathering hopper to rotate to adjust the angle between the windward surface and the incoming wind surface of the wind-gathering hopper.

[0010] The following is a further optimization of the above technical solution by the present invention:

[0011] The wind wheel support includes a vertical main shaft. An installation seat is fixedly installed at the upper end of the vertical main shaft. A plurality of installation brackets are fixedly installed on the installation seat. The other end of the installation bracket is fixedly installed with a wind-gathering hopper installation frame. The wind-gathering hopper assembly is installed on the wind-gathering hopper installation frame.

[0012] Further optimization: multiple support frames are arranged on the central axis, and the multiple support frames are arranged at intervals along the height direction of the central axis, and the other end of the support frame is fixedly installed on the inner surface of the wind gathering scoop; reinforcing ribs are respectively arranged on the inner surface of the wind gathering scoop near the support frame, and the reinforcing ribs are fixedly installed on the inner surface of the wind gathering scoop.

[0013] Further optimization: the upper and lower ends of the central axis are rotatably mounted on the wind concentrator mounting frame through support bearing assemblies, the bearing assembly includes a rotating support assembly and a bearing assembly, and a group of rotating support assemblies and bearing assemblies are fixedly mounted on the central axis near its two ends, and the rotating support assemblies and bearing assemblies are staggered up and down; the bearing assembly is installed between the end of the central axis and the wind concentrator mounting frame to support the central axis for rotation.

[0014] Further optimization: the rotating support assembly includes an outer ring body sleeved on the outside of the central axis, the outer ring body is fixedly mounted on an outer ring mounting seat, and the outer ring mounting seat is fixedly mounted on a wind collecting scoop mounting frame; the inner side of the outer ring body is rotatably connected to the inner ring body.

[0015] Further optimization: a connecting ring body is sleeved on the inner side of the inner ring body, and the connecting ring body is fixedly mounted on the central axis through a connecting plate; the connecting ring body and the inner ring body are slidingly connected.

[0016] Further optimization: the wind collecting bucket driving assembly includes a servo driving motor, a reducer is transmission-connected to the power output end of the servo driving motor, and the power output end of the reducer is transmission-connected to one end of the corresponding central shaft.

[0017] Further optimization: an inclination angle α is set between the windward surface of the wind concentrating scoop and the vertical surface, and the inclination angle α is 1-4°.

[0018] Further optimization: air outlets are respectively provided on the upper and lower ends of the wind collecting scoop, and the natural wind entering the wind collecting scoop is discharged outwardly through the air outlets.

[0019] Further optimization: the inner and outer surfaces of the wind concentrator are coated with a noise reduction coating, and the noise reduction coating is arranged in three layers from the inside to the outside, namely a primer, a middle coating and a topcoat; the primer is applied with noise reduction paint, and the coating thickness is 10-20μm; the middle coating is applied with aerosolized building insulation paint, and the coating thickness is 3-5mm; the topcoat is an anti-aging topcoat, and the coating thickness is 30-40μm.

[0020] The utility model adopts the above technical solution and has the following beneficial effects:

[0021] In this utility model, the servo drive motor works to drive the corresponding air collecting hopper to rotate clockwise and counterclockwise, so that the working angle of the air collecting hopper assembly in the working area is 180°, and then the windward surface of the air collecting hopper assembly is always aligned with the incoming wind. The working angle of the air collecting hopper assembly in the reverse working area is 90°, so that the reverse work of the air collecting hopper assembly in the reverse working area is minimized; and it can also make the instantaneous positions of each air collecting hopper assembly achieve optimal work when the wind wheel rotates one circle, so that the wind wheel can obtain the maximum working force, and then the wind wheel can be started in a light wind state.

[0022] In this utility model, the noise reduction coating can reduce the noise generated by the resonance of the air collecting hopper, and then reduce the noise generated when the wind wheel works, reducing noise pollution; sound-absorbing and noise-reducing pads are respectively arranged at the connection parts of the servo drive motor and the reducer with the air collecting hopper mounting frame. The sound-absorbing and noise-reducing pads can reduce the vibration transmitted to the air collecting hopper when the servo drive motor and the reducer work, and then reduce the generation of noise, improving the use effect.

[0023] In this utility model, through the application of the noise reduction coating and the sound-absorbing and noise-reducing pads, the noise generated when the wind wheel works can be reduced, and the working noise can be reduced to below 60 decibels, improving the use effect and reducing noise pollution.

[0024] Adopting the above technical scheme, this utility model can be started at a light wind speed of 1.6 - 3.3 m / s, and can reach the full-load state at a level 5 wind. Therefore, the power generation time of the wind wheel in this utility model is about 6000 - 7000 hours a year, which can greatly increase the power generation and improve the use effect.

[0025] The following further describes this utility model in conjunction with the drawings and embodiments. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of the embodiment of this utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the vertical main shaft in the embodiment of this utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the air collecting hopper assembly in the embodiment of this utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the air collecting hopper drive assembly in the embodiment of this utility model

[0030] Figure 5 It is a schematic diagram of the structure of a single air collecting hopper in the embodiment of this utility model;

[0031] Figure 6 It is a side view of the air collecting hopper in the embodiment of this utility model;

[0032] Figure 7 This is a schematic structural view of the support bearing assembly in the embodiment of the present utility model;

[0033] Figure 8 This is a schematic view of the working angle of the wind collecting hopper assembly when the wind wheel rotates in the embodiment of the present utility model.

[0034] In the figure: 21, wind wheel support; 22, vertical main shaft; 23, mounting seat; 24, mounting bracket; 25, wind collecting hopper mounting frame; 3, wind collecting hopper assembly; 31, wind collecting hopper; 32, central shaft; 33, support frame; 34, reinforcing rib; 35, servo drive motor; 36, reducer; 37, rotating support assembly; 371, outer ring body; 372, outer ring mounting seat; 373, inner ring body; 374, connecting ring body; 38, bearing assembly; 39, air discharge port. Detailed implementation manners

[0035] As Figure 1-8 shown: A wind wheel for a vertical-axis drag-type wind turbine includes a wind wheel support 21. Multiple groups of wind collecting hopper groups are arranged on the wind wheel support 21 in a circular shape and at equal intervals. Each group of wind collecting hopper groups includes at least one wind collecting hopper assembly 3. The wind collecting hopper assembly 3 can rotate relative to the wind wheel support 21. The overall structure of the wind collecting hopper assembly 3 includes a wind collecting hopper 31. The cross-section of the wind collecting hopper 31 is an arc-shaped groove. An open arc-shaped inner cavity is arranged inside the wind collecting hopper 31. A central shaft 32 is vertically arranged inside the wind collecting hopper 31. The central shaft 32 is arranged along the height direction of the wind collecting hopper 31, and the upper and lower ends of the central shaft 32 respectively extend to the outside of the upper and lower ends of the wind collecting hopper 31. A wind collecting hopper drive assembly for driving the wind collecting hopper 31 to rotate to adjust the angle between the windward surface and the incoming wind surface of the wind collecting hopper 31 is fixedly installed on the wind wheel support 21.

[0036] In this embodiment, the wind wheel support 21 includes a vertical main shaft 22. The vertical main shaft 22 is vertically arranged with respect to the bottom surface. The upper end of the vertical main shaft 22 is fixedly installed with a mounting seat 23.

[0037] In this embodiment, the vertical main shaft 22 is rotatably installed on a support seat. The support seat is fixedly installed on the upper end of the tower. That is, the vertical main shaft 22 is rotatably installed on the upper end of the tower through the support seat, so as to rotatably install this wind wheel on the upper end of the tower.

[0038] A plurality of mounting brackets 24 are fixedly installed on the mounting seat 23. The other end of the mounting bracket 24 is fixedly installed with a wind collecting hopper mounting frame 25. The wind collecting hopper assembly 3 is installed on the wind collecting hopper mounting frame 25.

[0039] In this embodiment, the number of the mounting brackets 24 and the air collecting hopper mounting frames 25 matches the number of the air collecting hopper groups. The number of the air collecting hopper groups is five groups, and the five groups of air collecting hopper groups are arranged in a ring at intervals.

[0040] In this embodiment, the mounting bracket 24 is composed of a plurality of support rods, and the air collecting hopper mounting frame 25 is fixedly installed on the mounting bracket 24. The air collecting hopper mounting frame 25 is made of a plurality of square metal pipes by welding.

[0041] In this embodiment, each air collecting hopper group includes two air collecting hopper assemblies 3, and the two air collecting hopper assemblies 3 are arranged at intervals along the height direction of the air collecting hopper mounting frame 25.

[0042] With such a design, the overall height of each air collecting hopper assembly 3 can be reduced, which is convenient for manufacturing and production, and also convenient for assembly and installation.

[0043] A plurality of support frames 33 are arranged on the central shaft 32, and the plurality of support frames 33 are arranged at intervals along the height direction of the central shaft 32. The other ends of the support frames 33 are fixedly installed on the inner surface of the air collecting hopper 31.

[0044] Reinforcing ribs 34 are respectively arranged on the inner surface of the air collecting hopper 31 at positions close to the support frames 33, and the reinforcing ribs 34 are fixedly installed on the inner surface of the air collecting hopper 31.

[0045] The upper and lower ends of the central shaft 32 are respectively rotationally installed on the air collecting hopper mounting frame 25 through support bearing assemblies. By the rotational connection between the central shaft 32 and the air collecting hopper mounting frame 25, the air collecting hopper 31 can be rotationally installed on the air collecting hopper mounting frame 25, so that the air collecting hopper 31 can rotate, and the angle between the windward surface and the incoming wind surface of the air collecting hopper 31 can be adjusted, which is convenient for use.

[0046] The bearing assembly includes a rotating support assembly 37 and a bearing assembly 38. A set of rotating support assembly 37 and bearing assembly 38 are respectively fixedly installed on the central shaft 32 near its two ends. The rotating support assembly 37 and the bearing assembly 38 are arranged vertically and staggered. The outer surface diameter and the inner surface diameter of the rotating support assembly 37 are both larger than the outer surface diameter and the inner surface diameter of the bearing assembly 38. The outer surfaces of the rotating support assembly 37 and the bearing assembly 38 are respectively fixedly installed on the air collecting hopper mounting frame 25.

[0047] In this embodiment, the bearing assembly 38 is an existing bearing, and the bearing assembly 38 is installed between the end of the central shaft 32 and the air collecting hopper mounting frame 25 to support the rotation of the central shaft 32, which is convenient for use.

[0048] The rotating support assembly 37 includes an outer ring body 371 sleeved on the outside of the central shaft 32 . The outer ring body 371 is fixedly mounted on an outer ring mounting seat 372 . The outer ring mounting seat 372 is fixedly mounted on the wind collecting scoop mounting frame 25 .

[0049] In this embodiment, a plurality of bolts are used to realize fixed installation between the outer ring body 371 and the outer ring mounting seat 372 and between the outer ring mounting seat 372 and the wind collecting scoop mounting frame 25.

[0050] The inner side of the outer ring body 371 is rotatably connected to the inner ring body 373, and the outer ring body 371 and the inner ring body 373 are rotatably connected via rolling bodies. The inner side of the inner ring body 373 is sleeved with a connecting ring body 374, and the connecting ring body 374 is fixedly mounted on the central shaft 32 via a connecting plate.

[0051] The connecting ring body 374 and the inner ring body 373 are slidably connected.

[0052] With this design, the rotation of the central shaft 32 drives the connecting ring body 374 to rotate, and the rotation of the connecting ring body 374 drives the inner ring body 373 to rotate. At this time, the outer ring body 371 is used to support the inner ring body 373 to rotate, which is convenient for use. The inner ring body 373 and the outer ring body 371 cooperate to support the rotation of the central shaft 32, and the bearing assembly 38 cooperates to support the rotation of the central shaft 32.

[0053] In this embodiment, the wind wheel works as a whole in the external environment, so the wind focusing bucket assembly 3 as a whole is easily affected by the ambient temperature, which makes the wind focusing bucket 31 prone to thermal expansion and contraction. When thermal expansion and contraction occur on the wind focusing bucket 31, the overall height dimension of the wind focusing bucket 31 will become longer or shorter. The connecting ring body 374 and the inner ring body 373 are slidably connected. At this time, the connecting ring body 374 can move axially relative to the inner ring body 373 to adapt to the thermal expansion and contraction of the wind focusing bucket 31.

[0054] The wind collecting bucket driving assembly includes a servo driving motor 35 , a reducer 36 is drivingly connected to the power output end of the servo driving motor 35 , and the power output end of the reducer 36 is drivingly connected to one end of the corresponding central shaft 32 .

[0055] In this embodiment, the speed reducer 36 is fixedly mounted on the wind collecting scoop mounting frame 25 .

[0056] The servo drive motor 35 drives the reducer 36 to rotate. At this time, the reducer 36 outputs rotational power to drive the central shaft 32 to rotate forward and reverse. At this time, the central shaft 32 can drive the wind collecting scoop 31 to rotate forward and reverse, so as to adjust the angle between the windward side and the incoming wind side of the wind collecting scoop 31, which is convenient for use.

[0057] An electromagnetic brake assembly may also be installed on the upper part of the central shaft 32. The electromagnetic brake assembly is fixedly installed on the air collecting hopper mounting bracket 25. The electromagnetic brake assembly operates to brake the central shaft 32 to prevent the air collecting hopper 31 from rotating self.

[0058] The electromagnetic brake assembly is selectively installed. When the servo drive motor 35 stops rotating and the braking force of the servo drive motor 35 cannot meet the braking requirement of the air collecting hopper 31, an additional electromagnetic brake assembly can be used to brake the rotation of the air collecting hopper 31. When the servo drive motor 35 stops rotating and the air collecting hopper 31 cannot rotate self during the revolution process, the additional electromagnetic brake assembly is not needed at this time.

[0059] In this embodiment, an inclination angle α is provided between the windward surface of the air collecting hopper 31 and the vertical plane, and the inclination angle α is 1 - 4°.

[0060] In this embodiment, the inclination angle α between the windward surface of the air collecting hopper 31 and the vertical plane is preferably 2°.

[0061] In this embodiment, the inclination angle α is determined according to the overall size of the wind wheel. When the rotation diameter of the wind wheel is larger, the inclination angle α is adjusted larger; when the rotation diameter of the wind wheel is smaller, the inclination angle α is adjusted smaller.

[0062] With such a design, after the natural wind enters the air collecting hopper 31, the acting force of the natural wind acts on the inner surface of the air collecting hopper 31. At this time, when the air collecting hopper 31 is inclined, it can enable the natural wind to generate an upward lifting force on the air collecting hopper 31 after acting on the air collecting hopper 31, thereby enabling the wind wheel to have an upward moving force and reducing the pressure of the wind wheel on the tower, ensuring smooth rotation.

[0063] Outside this embodiment, air discharge openings 39 are respectively provided at the upper and lower ends of the air collecting hopper 31. The natural wind entering the air collecting hopper 31 can be discharged outward through the air discharge openings 39, which is convenient for use.

[0064] With such a design, when the wind wheel is working, the air collecting hopper 31 is used to gather the natural wind to increase the thrust of the natural wind on the wind wheel and ensure the smooth rotation of the wind wheel. However, when the upper and lower ends of the air collecting hopper 31 are closed surfaces, after the natural wind enters the arc-shaped inner cavity of the air collecting hopper 31, the natural wind cannot be discharged smoothly, resulting in an invisible wind blocking surface at the windward surface of the air collecting hopper 31. At this time, the force-bearing surface of the air collecting hopper 31 is concentrated at this wind blocking surface, reducing the thrust of the natural wind on the air collecting hopper 31.

[0065] In this embodiment, air vents 39 are respectively formed at the upper and lower ends of the air collecting hopper 31. At this time, the natural wind entering the arc-shaped inner cavity of the air collecting hopper 31 is discharged through the air vents 39 under the guidance of the inner surface of the air collecting hopper 31, so that an invisible wind blocking surface will not be formed at the windward surface of the air collecting hopper 31, ensuring the thrust of the natural wind on the air collecting hopper 31, and thus enabling the wind wheel to rotate smoothly and realizing light wind start-up.

[0066] The overall structure of the present utility model is made of space aluminum material. The thickness of the space aluminum material is 1 mm, and the weight of the 1 mm thick space aluminum material is 2.75 kg / ㎡. Therefore, the overall weight is light and light wind start-up can be achieved.

[0067] In this embodiment, it should be particularly noted that: existing wind turbines will generate a lot of noise during operation, so noise pollution will be generated. And in the present utility model, the air collecting hopper 31 is used to block the natural wind to drive the overall rotation of the wind wheel, and drive the external generator to work for power generation. In this embodiment, the servo drive motor 35 works through the reducer 36 to drive the air collecting hopper 31 to rotate, realizing the adjustment of the angle of the air collecting hopper 31, so that the instantaneous position of the air collecting hopper 31 can achieve optimal work, and thus the wind wheel can obtain the maximum work force.

[0068] When the reducer 36 drives the air collecting hopper 31 to rotate, the vibration of the reducer 36 will be transmitted to the air collecting hopper 31. And the cross-section of the air collecting hopper 31 is an arc-shaped groove. At this time, the vibration of the air collecting hopper 31 will generate noise, resulting in noise pollution.

[0069] In this embodiment, noise reduction coatings are respectively coated on the inner and outer surfaces of the air collecting hopper 31. The noise reduction coatings are arranged in three layers from the inside to the outside, namely primer, middle coating and top coating; among them, the primer is coated with noise reduction paint, and the coating thickness is 10-20 μm; the middle coating is coated with aerogel building thermal insulation coating, and the coating thickness is 3-5 mm, and the top coating is anti-aging top coating, and the coating thickness is 30-40 μm.

[0070] With such a design, the noise generated by the resonance of the air collecting hopper 31 can be reduced through the noise reduction coating, and then the noise generated when the wind wheel works can be reduced, reducing noise pollution.

[0071] In this embodiment, the servo drive motor 35 and the reducer 36 are respectively fixedly installed on the air collecting hopper mounting frame 25. Sound absorption and noise reduction pads are respectively arranged at the joints of the servo drive motor 35 and the reducer 36 and the air collecting hopper mounting frame 25. The sound absorption and noise reduction pads can reduce the vibration transmitted to the air collecting hopper 31 when the servo drive motor 35 and the reducer 36 are working, and thus reduce the generation of noise and improve the use effect.

[0072] In the present utility model, the application of the noise reduction coating and the sound absorption and noise reduction pad can reduce the noise generated by the wind wheel during operation, reduce the working noise to below 60 decibels, improve the use effect, and reduce noise pollution.

[0073] During use, the wind wheel is controlled to operate by a control cabinet, and the control cabinet is fixedly installed on the upper part of the mounting seat 23. A main controller is arranged in the control cabinet, and an input end of the main controller is electrically connected to a wind direction instrument for detecting the wind direction of natural wind.

[0074] An output end of the main controller is electrically connected to a corresponding servo drive motor 35 through a plurality of servo control circuits.

[0075] The servo control circuit includes a servo drive module, and an output end of the servo drive module is electrically connected to a control end of the servo drive motor 35; the main controller outputs a control signal to control the corresponding servo drive motor 35 to operate through the servo drive module.

[0076] In this embodiment, the servo drive module is a prior art.

[0077] The working principle is as follows: Refer to Figure 8 as shown in Figure 8 FIG. for the working state diagram of the wind collecting hopper 31 at each position during the rotation of the wind wheel; first, the wind direction instrument detects the incoming wind direction and sends it to the main controller, and the main controller determines that the incoming wind direction is the 0° reference point during the rotation of the wind wheel; the wind wheel rotates one circle by 360°, and when the wind wheel rotates one circle, 0° - 180° is the work area, and 180° - 360° is the reverse work area.

[0078] When a wind collecting hopper assembly 3 on the wind wheel is at the 0° reference point position, along the rotation direction of the wind wheel, two of the other four groups of wind collecting hopper groups are in the work area; the other two groups of wind collecting hopper groups are in the reverse work area.

[0079] The main controller issues a control signal to control the servo drive motors 35 on each wind collecting hopper assembly 3 to operate, and the servo drive motors 35 operate to drive the central shaft 32 to drive the wind collecting hopper 31 to rotate. At this time, when each wind collecting hopper 31 rotates one circle with the wind wheel, there are three working angles between the windward surface and the incoming wind surface of the wind collecting hopper 31, which are 130°, 180°, and 90°; among them, the working angle of the wind collecting hopper 31 at the 0° reference point position of the wind wheel is 130°; the working angle of the wind collecting hopper 31 in the work area is 180°; the working angle of the wind collecting hopper 31 in the reverse work area is 90°.

[0080] After the natural wind enters the wind collecting hopper 31, the acting force of the natural wind acts on the inner surface of the wind collecting hopper 31, and the natural wind generates a thrust on the wind wheel, causing the wind wheel to rotate. The rotation of the wind wheel drives the vertical main shaft 22 to rotate, and the vertical main shaft 22 outputs rotational power to drive an external generator to work for power generation.

[0081] When the wind wheel rotates one full circle, the wind wheel drives each wind collecting hopper assembly 3 to rotate one full circle from the 0° reference point of the wind wheel and return to the initial state again. The working angle of the wind collecting hopper 31 at the 0° reference point on the wind wheel is 130°. When the wind collecting hopper 31 at the 0° reference point rotates to the 50° rotation position of the wind wheel, the main controller controls the corresponding servo drive motor 35 to drive the wind collecting hopper 31 to rotate counterclockwise at a reduced speed, so that the working angle of the wind collecting hopper 31 rotates counterclockwise from 130° to 180°.

[0082] When the wind collecting hopper 31 rotates from the 50° rotation position of the wind wheel to the 180° rotation position of the wind wheel, the main controller controls the corresponding servo drive motor 35 to drive the wind collecting hopper 31 to rotate counterclockwise normally, so that the working angle of the wind collecting hopper 31 always remains 180°. At this time, the windward surface of the wind collecting hopper 31 is always parallel to the incoming wind surface, ensuring that the wind collecting hopper 31 rotating in the working area receives the maximum thrust from the natural wind, thereby enabling the smooth rotation of the wind wheel.

[0083] When the wind collecting hopper 31 rotates from the 180° rotation position of the wind wheel to the 230° rotation position of the wind wheel, the main controller controls the corresponding servo drive motor 35 to drive the wind collecting hopper 31 to rotate clockwise at a reduced speed, so that the working angle of the wind collecting hopper 31 rotates from 180° to 90°.

[0084] When the wind collecting hopper 31 rotates from the 230° rotation position of the wind wheel to the 320° rotation position of the wind wheel, the main controller controls the corresponding servo drive motor 35 to drive the wind collecting hopper 31 to rotate clockwise, so that the working angle of the wind collecting hopper 31 always remains 90°; at this time, the natural wind acts on the side vertical surface of the wind collecting hopper 31, and the outer surface of the wind collecting hopper 31 is an arc surface, thereby being able to reduce the wind resistance area and reduce the reverse work, enabling the smooth rotation of the wind wheel.

[0085] When the wind collecting hopper 31 rotates from the 320° rotation position of the wind wheel to the 0° reference point of the wind wheel, the main controller controls the corresponding servo drive motor 35 to drive the wind collecting hopper 31 to rotate counterclockwise at an accelerated speed, so that the working angle of the wind collecting hopper 31 rotates from 90° to 130°.

[0086] Thus, in the present invention, the main controller controls each servo drive motor 35 to drive the air collecting hopper 31 to rotate clockwise and counterclockwise, so that the working angle of the air collecting hopper assembly 3 in the power generation area is 180°, and thus the windward surface of the air collecting hopper assembly 3 is always aligned with the incoming wind. The working angle of the air collecting hopper assembly 3 in the counter-power generation area is 90°, and thus the counter-power generation of the air collecting hopper assembly 3 in the counter-power generation area is minimized. Moreover, when the wind wheel rotates one circle, the instantaneous positions of each air collecting hopper assembly 3 all achieve optimal power generation, enabling the wind wheel to obtain the maximum power generation force, and thus enabling the wind wheel to start in a light wind state.

[0087] In this embodiment, when the wind direction detector detects a change in the incoming wind direction, the wind direction detector sends a detection signal to the main controller, and the main controller re-determines the incoming wind direction as the 0° reference point during the rotation of the wind wheel. Then the main controller controls the servo drive motor 35 to work again to drive the air collecting hopper 31 to rotate, ensuring that the windward surface of the air collecting hopper assembly 3 is always aligned with the incoming wind when it is in the power generation area. When the air collecting hopper assembly 3 is in the counter-power generation area, the working angle of the air collecting hopper assembly 3 is 90°, minimizing the counter-power generation of the air collecting hopper assembly 3 in the counter-power generation area, and enabling the instantaneous positions of each air collecting hopper assembly 3 to all achieve optimal power generation, and thus enabling the wind wheel to obtain the maximum power generation force.

[0088] In this embodiment, the servo drive motor 35 is powered by an external power supply, and the external power supply can be a storage battery, an external power cord, etc.

[0089] By adopting the above technical solution in the present utility model, it can start at a light wind speed of 1.6 - 3.3 m / s, and can reach the full-load power generation state at a level 5 wind. Therefore, the power generation time of the wind wheel in the present utility model is about 6000 - 7000 hours per year, which can greatly increase the power generation amount and improve the use effect.

[0090] For those of ordinary skill in the art, according to the teachings of the present utility model, without departing from the principles and spirit of the present utility model, the changes, modifications, substitutions, and variations made to the embodiments still fall within the protection scope of the present utility model.

Claims

1. A wind rotor for a vertical axis resistance type wind turbine, comprising a wind rotor support (21), characterized in that: A plurality of wind collecting bucket groups are arranged in a ring shape and at even intervals on the wind wheel bracket (21), each wind collecting bucket group comprising at least one wind collecting bucket assembly (3), the wind collecting bucket assembly (3) being capable of self-rotation relative to the wind wheel bracket (21), the overall structure of the wind collecting bucket assembly (3) comprising a wind collecting bucket (31), the cross section of the wind collecting bucket (31) being in the shape of an arc groove, the interior of the wind collecting bucket (31) being provided with an open arc-shaped inner cavity, a central axis (32) being vertically arranged inside the wind collecting bucket (31), the central axis (32) being arranged along the height direction of the wind collecting bucket (31), and the upper and lower ends of the central axis (32) respectively extending to the outer sides of the upper and lower ends of the wind collecting bucket (31); a wind collecting bucket driving assembly for driving the wind collecting bucket (31) to rotate so as to adjust the angle between the windward surface and the incoming wind surface of the wind collecting bucket (31) is fixedly mounted on the wind wheel bracket (21).

2. A wind wheel for a vertical axis resistance type wind turbine according to claim 1, characterized in that: The wind wheel support (21) comprises a vertical main shaft (22), a mounting seat (23) being fixedly mounted on the upper end of the vertical main shaft (22); a plurality of mounting brackets (24) being fixedly mounted on the mounting seat (23); a wind collecting scoop mounting frame (25) being fixedly mounted on the other end of the mounting bracket (24); and a wind collecting scoop assembly (3) being mounted on the wind collecting scoop mounting frame (25).

3. A wind wheel for a vertical axis resistance type wind turbine according to claim 2, characterized in that: A plurality of support frames (33) are arranged on the central axis (32), and the plurality of support frames (33) are arranged at intervals along the height direction of the central axis (32), and the other ends of the support frames (33) are fixedly mounted on the inner surface of the wind gathering scoop (31); and reinforcing ribs (34) are respectively arranged on the inner surface of the wind gathering scoop (31) at positions close to the support frames (33), and the reinforcing ribs (34) are fixedly mounted on the inner surface of the wind gathering scoop (31).

4. A wind wheel for a vertical axis resistance type wind turbine according to claim 3, characterized in that: The upper and lower ends of the central shaft (32) are rotatably mounted on the wind collecting scoop mounting frame (25) via support bearing assemblies, respectively. The bearing assemblies include a rotation support assembly (37) and a bearing assembly (38). A group of rotation support assemblies (37) and a bearing assembly (38) are respectively fixedly mounted on the central shaft (32) near its two ends. The rotation support assemblies (37) and the bearing assemblies (38) are arranged alternately up and down. The bearing assembly (38) is mounted between the end of the central shaft (32) and the wind collecting scoop mounting frame (25) to support the central shaft (32) for rotation.

5. A wind wheel for a vertical axis resistance type wind turbine according to claim 4, characterized in that: The rotating support assembly (37) comprises an outer ring body (371) sleeved on the outside of the central shaft (32); the outer ring body (371) is fixedly mounted on an outer ring mounting seat (372); the outer ring mounting seat (372) is fixedly mounted on a wind collecting scoop mounting frame (25); the inner side of the outer ring body (371) is rotatably connected to an inner ring body (373).

6. A wind wheel for a vertical axis resistance type wind turbine according to claim 5, characterized in that: A connecting ring body (374) is sleeved on the inner side of the inner ring body (373), and the connecting ring body (374) is fixedly mounted on the central shaft (32) via a connecting plate; the connecting ring body (374) and the inner ring body (373) are slidably connected.

7. A wind wheel for a vertical axis resistance type wind turbine according to claim 6, characterized in that: The wind collecting scoop driving assembly comprises a servo driving motor (35), a power output end of the servo driving motor (35) is drivingly connected to a reducer (36), and the power output end of the reducer (36) is drivingly connected to one end of the corresponding central shaft (32).

8. A wind wheel for a vertical axis resistance type wind turbine according to claim 7, characterized in that: An inclination angle α is provided between the windward surface of the wind focusing scoop (31) and the vertical surface, and the inclination angle α is 1-4°.

9. A wind wheel for a vertical axis resistance type wind turbine according to claim 8, characterized in that: The upper and lower ends of the wind collecting hopper (31) are respectively provided with air discharge ports (39), and the natural wind entering the wind collecting hopper (31) is discharged to the outside through the air discharge ports (39).

10. A wind wheel for a vertical axis resistance type wind turbine according to claim 9, characterized in that: The inner and outer surfaces of the wind concentrator (31) are coated with a noise reduction coating, and the noise reduction coating is arranged in three layers from the inside to the outside, namely a primer, a middle coating and a top coating; the primer is coated with a noise reduction paint with a coating thickness of 10-20 μm; the middle coating is coated with an aerosolized building insulation paint with a coating thickness of 3-5 mm; the top coating is an anti-aging top coating with a coating thickness of 30-40 μm.

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