Wind gathering scoop 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 gathering scoop for a vertical shaft resistance type wind driven generator, which comprises a wind gathering scoop shell, the cross section of the wind gathering scoop shell is in an arc groove shape, an open type arc inner cavity is arranged inside the wind gathering scoop shell, and a central shaft is vertically arranged in the wind gathering scoop shell. The center shaft is arranged in the height direction of the wind gathering hopper shell, 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 hopper shell correspondingly, and the inner surface and the outer surface of the wind gathering hopper shell are both coated with noise reduction coatings. The wind gathering bucket is simple in overall structure, wind energy can be fully utilized, noise generated in the working process of the wind gathering bucket can be reduced, and noise pollution is reduced.

Description

Technical Field

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

[0002] Under the general trend of global energy conservation, environmental protection, and sustainable development, the development of wind turbines has been vigorously promoted; existing drag-type wind turbines generally include a wind wheel driven to rotate by the wind; a plurality of blades are arranged annularly and at intervals on the wind wheel, and a generator is drivingly connected below the wind wheel through a transmission assembly. The rotation of the wind wheel drives the generator to work through the transmission of the transmission assembly to realize power generation operation.

[0003] The blade structures on the wind wheels of existing drag-type wind turbines are diverse. The patent application number is: CN202121676763.X, which discloses a drag-type blade for a vertical-axis wind power generation system. The first blade and the second blade are both arc-shaped structures, and a first arc-shaped ring and a second arc-shaped ring are respectively arranged at one ends of the first blade and the second blade. The openings of the first arc-shaped ring and the second arc-shaped ring are arranged opposite to each other, and the first arc-shaped ring and the second arc-shaped ring are detachably connected through a connecting body; a wind power generation system to be used is installed between the first arc-shaped ring and the second arc-shaped ring.

[0004] The above-mentioned existing blades can be installed on the wind wheel and can block the natural wind to drive the wind wheel to rotate. However, the resistance of such existing blades to the wind is still relatively small, and the wind energy cannot be fully utilized, resulting in the inability to drive the wind wheel to rotate in light wind conditions, reducing the use effect. Moreover, during the rotation of the wind wheel, noise will be generated due to vibration, and since the wind wheel is an arc-shaped structure, the noise will be amplified, greatly increasing the noise pollution and reducing the use effect. Summary of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a wind-gathering hopper for a vertical-axis drag-type wind turbine, which has a simple overall structure, can fully utilize wind energy, and can reduce the noise during the operation of the wind-gathering hopper, reducing noise pollution.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A wind-gathering hopper for a vertical-axis drag-type wind turbine includes a wind-gathering hopper housing. The cross-section of the wind-gathering hopper housing is an arc-shaped groove. An open arc-shaped inner cavity is arranged inside the wind-gathering hopper housing. A central axis is vertically arranged inside the wind-gathering hopper housing. The central axis is arranged along the height direction of the wind-gathering hopper housing, 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 housing. Noise reduction coatings are applied on both the inner and outer surfaces of the wind-gathering hopper housing.

[0008] The following is a further optimization of the above technical solution by the utility model:

[0009] A plurality of support frames are arranged on the central axis, and the plurality of support frames are arranged at intervals along the height direction of the central axis, and the other ends of the support frames are fixedly mounted on the inner surface of the wind collecting scoop shell.

[0010] Further optimization: reinforcing ribs are respectively arranged on the inner surface of the wind collecting scoop shell at positions close to the support frame, and the reinforcing ribs are fixedly installed on the inner surface of the wind collecting scoop shell.

[0011] Further optimization: an inclination angle α is set between the windward surface of the wind focusing scoop shell and the vertical surface, and the inclination angle α is 1-4°.

[0012] Further optimization: air outlets are respectively provided on the upper and lower ends of the wind collecting scoop shell, and the natural wind entering the wind collecting scoop shell is discharged outwardly through the air outlets.

[0013] Further optimization: the noise reduction coating is arranged into three layers from the inside to the outside, namely a primer, a mid-coat and a topcoat, and the primer, the mid-coat and the topcoat are integrally connected to each other.

[0014] Further optimization: the primer is coated with noise reduction paint with a coating thickness of 10-20 μm.

[0015] Further optimization: the middle coating is applied with aerosolized building thermal insulation paint with a coating thickness of 3-5 mm.

[0016] Further optimization: the topcoat adopts anti-aging topcoat with a coating thickness of 30-40 μm.

[0017] Further optimization: a wind concentrator driving assembly is arranged above or below the wind concentrator shell; the wind concentrator driving assembly includes a servo drive motor, a reducer is transmission-connected to the power output end of the servo drive motor, and the power output end of the reducer is transmission-connected to one end of the corresponding central shaft.

[0018] The utility model adopts the above technical solution and has the following beneficial effects:

[0019] 1. In the utility model, after the natural wind enters the wind collecting bucket shell, the force of the natural wind acts on the inner surface of the wind collecting bucket shell. At this time, the wind collecting bucket shell is tilted, so that after the natural wind acts on the wind collecting bucket shell, the natural wind will have an upward lifting force on the wind collecting bucket shell, thereby enabling the wind collecting bucket shell to have an upward moving force, thereby reducing the downward pressure on the wind collecting bucket shell.

[0020] 2. In the present utility model, sound-absorbing and noise-reducing pads are respectively provided at the connection parts between the servo drive motor and the reducer and the mounting bracket. The sound-absorbing and noise-reducing pads can reduce the vibration transmitted to the air-collecting hopper housing when the servo drive motor and the reducer are working, thereby reducing the generation of noise and improving the use effect.

[0021] 3. In the present utility model, through the application of the noise-reducing coating and the sound-absorbing and noise-reducing pads, the noise generated when the air-collecting hopper housing 3 is working can be reduced, so that the working noise is reduced to below 60 decibels, improving the use effect and reducing noise pollution.

[0022] 4. In the present utility model, the servo drive motor works through the reducer to drive the air-collecting hopper housing to rotate, so as to adjust the angle between the windward surface and the incoming wind surface of the air-collecting hopper housing, enabling the instantaneous position of the air-collecting hopper housing to achieve the optimal work, and thus enabling the wind wheel to obtain the maximum working force, which is convenient for use.

[0023] 5. The main technical problem to be solved by the present utility model is to provide an air-collecting hopper for a vertical-axis drag-type wind turbine, with a simple overall structure, which can make full use of wind energy and reduce the noise of the air-collecting hopper during the working process, reducing noise pollution.

[0024] The following further describes the present utility model in conjunction with the drawings and embodiments. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0026] Figure 2 is the side view of the air-collecting hopper housing in the embodiment of the present utility model;

[0027] Figure 3 is the structural schematic diagram of the noise-reducing coating in the embodiment of the present utility model;

[0028] Figure 4 is the structural schematic diagram when the air-collecting hopper housing in the embodiment of the present utility model is installed on the mounting bracket;

[0029] Figure 5 is the structural schematic diagram at the support bearing assembly in the embodiment of the present utility model.

[0030] In the figure: 1 - mounting bracket; 2 - servo drive motor; 21 - reducer; 3 - air-collecting hopper housing; 31 - primer; 311 - intermediate coating; 312 - topcoat; 32 - central axis; 33 - support frame; 34 - reinforcing rib; 35 - air vent; 4 - rotating support assembly; 41 - outer ring body; 42 - outer ring mounting seat; 43 - inner ring body; 44 - connecting ring body; 45 - bearing assembly. Detailed Embodiment

[0031] Such asFigures 1-5 As shown: A wind collecting hopper for a vertical-axis drag-type wind turbine, including a wind collecting hopper housing 3. The cross-section of the wind collecting hopper housing 3 is in the shape of an arc-shaped groove. An open arc-shaped inner cavity is provided inside the wind collecting hopper housing 3. A central shaft 32 is vertically arranged inside the wind collecting hopper housing 3. The central shaft 32 is arranged along the height direction of the wind collecting hopper housing 3, 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 housing 3. Noise reduction coatings are applied on both the inner and outer surfaces of the wind collecting hopper housing 3.

[0032] A plurality of support frames 33 are arranged on the central shaft 32. The plurality of support frames 33 are spaced along the height direction of the central shaft 32. The other end of the support frame 33 is fixedly installed on the inner surface of the wind collecting hopper housing 3.

[0033] In this embodiment, the support frame 33 is composed of a plurality of support rods, and the support rods are respectively fixedly installed between the central shaft 32 and the wind collecting hopper housing 3.

[0034] Reinforcing ribs 34 are respectively arranged on the inner surface of the wind collecting hopper housing 3 near the support frame 33. The reinforcing ribs 34 are fixedly installed on the inner surface of the wind collecting hopper housing 3.

[0035] In this embodiment, an installation frame 1 is arranged outside the wind collecting hopper housing 3. The upper and lower ends of the central shaft 32 are respectively rotationally installed on the installation frame 1 through support bearing assemblies. Through the rotational connection between the central shaft 32 and the installation frame 1, the wind collecting hopper housing 3 can be rotationally installed on the installation frame 1, so that the wind collecting hopper housing 3 can rotate, realizing the adjustment of the angle between the windward surface and the incoming wind surface of the wind collecting hopper housing 3, which is convenient for use.

[0036] The support bearing assembly includes a rotary support assembly 4 and a bearing assembly 45. A set of rotary support assembly 4 and bearing assembly 45 are respectively fixedly installed at positions near the two ends of the central shaft 32. The rotary support assembly 4 and the bearing assembly 45 are arranged alternately, and the outer surface diameter and inner surface diameter of the rotary support assembly 4 are both larger than the outer surface diameter and inner surface diameter of the bearing assembly 45. The outer surfaces of the rotary support assembly 4 and the bearing assembly 45 are respectively fixedly installed on the installation frame 1.

[0037] The rotary support assembly 4 includes an outer ring body 41 sleeved outside the central shaft 32. The outer ring body 41 is fixedly installed on an outer ring mounting seat 42, and the outer ring mounting seat 42 is fixedly installed on the installation frame 1.

[0038] In this embodiment, the outer ring body 41 and the outer ring mounting seat 42, and the outer ring mounting seat 42 and the installation frame 1 are fixedly installed by a plurality of bolts passing through them together.

[0039] The inner side of the outer ring body 41 is rotatably connected to the inner ring body 43, and the outer ring body 41 and the inner ring body 43 are rotatably connected via rolling bodies. The inner side of the inner ring body 43 is sleeved with a connecting ring body 44, and the connecting ring body 44 is fixedly mounted on the central shaft 32 via a connecting plate.

[0040] The connecting ring body 44 and the inner ring body 43 are slidably connected.

[0041] With this design, the rotation of the central shaft 32 drives the connecting ring body 44 to rotate, and the rotation of the connecting ring body 44 drives the inner ring body 43 to rotate. At this time, the outer ring body 41 is used to support the inner ring body 43 to rotate, which is convenient for use. The inner ring body 43 and the outer ring body 41 cooperate to support the rotation of the central shaft 32, and the bearing assembly 45 cooperates to support the rotation of the central shaft 32.

[0042] In this embodiment, the wind gathering hopper shell 3 as a whole works in the external environment, so the wind gathering hopper shell 3 as a whole is easily affected by the ambient temperature, causing thermal expansion and contraction on the wind gathering hopper shell 3. When thermal expansion and contraction occur on the wind gathering hopper shell 3, the overall height dimension of the wind gathering hopper shell 3 will become longer or shorter. The connecting ring body 44 and the inner ring body 43 are slidably connected. At this time, the connecting ring body 44 can move axially relative to the inner ring body 43 to adapt to the thermal expansion and contraction of the wind gathering hopper shell 3.

[0043] A wind concentrator driving assembly is provided above or below the wind concentrator shell 3 to drive the wind concentrator shell 3 to rotate so as to adjust the angle between the windward surface and the incoming wind surface of the wind concentrator shell 3.

[0044] The wind collecting bucket driving assembly includes a servo driving motor 2 , a reducer 21 is drivingly connected to the power output end of the servo driving motor 2 , and the power output end of the reducer 21 is drivingly connected to one end of the corresponding central shaft 32 .

[0045] In this embodiment, the reducer 21 is fixedly mounted on the mounting frame 1; the servo drive motor 2 is also fixedly mounted on the mounting frame 1, which is convenient for assembly and installation.

[0046] The servo drive motor 2 drives the reducer 21 to rotate. At this time, the reducer 21 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 bucket shell 3 to rotate forward and reverse, so as to adjust the angle between the windward side and the incoming wind side of the wind collecting bucket shell 3, which is convenient for use.

[0047] An electromagnetic brake assembly may also be installed above the central axis 32 . The electromagnetic brake assembly is fixedly mounted on the mounting frame 1 . The electromagnetic brake assembly is used to brake the central axis 32 to prevent the wind collecting scoop housing 3 from rotating.

[0048] The electromagnetic brake assembly is selectively installed. When the braking force of the servo drive motor 2 is insufficient to brake the air collecting hopper housing 3 after the servo drive motor 2 stops rotating, an additional electromagnetic brake assembly can be used to brake the air collecting hopper housing 3. When the servo drive motor 2 stops rotating and the air collecting hopper housing 3 cannot rotate on its own during the revolution process, the additional electromagnetic brake assembly is not required at this time.

[0049] In this embodiment, an inclination angle α is provided between the windward surface of the air collecting hopper housing 3 and the vertical plane, and the inclination angle α is 1-4°.

[0050] In this embodiment, the inclination angle α between the windward surface of the air collecting hopper housing 3 and the vertical plane is preferably 2°.

[0051] In this embodiment, the inclination angle α is determined according to the overall size of the air collecting hopper housing 3. When the revolution diameter of the air collecting hopper housing 3 is larger, the inclination angle α is adjusted larger; when the revolution diameter of the air collecting hopper housing 3 is smaller, the inclination angle α is adjusted smaller.

[0052] With such a design, after the natural wind enters the air collecting hopper housing 3, the acting force of the natural wind acts on the inner surface of the air collecting hopper housing 3. At this time, the air collecting hopper housing 3 is inclined, which can enable the natural wind to have an upward lifting force on the air collecting hopper housing 3 after acting on it, and further enable the air collecting hopper housing 3 to have an upward moving force, reducing the downward pressure on the air collecting hopper housing 3.

[0053] In addition to this embodiment, air discharge openings 35 are respectively provided at the upper and lower ends of the air collecting hopper housing 3, and the natural wind entering the air collecting hopper housing 3 can be discharged outward through the air discharge openings 35, which is convenient for use.

[0054] With such a design, the air collecting hopper housing 3 is used to gather the natural wind and improve the thrust of the natural wind on the air collecting hopper housing 3. However, when the upper and lower ends of the air collecting hopper housing 3 are closed surfaces, after the natural wind enters the arc-shaped inner cavity of the air collecting hopper housing 3, the natural wind cannot be discharged smoothly, resulting in an invisible wind blocking surface being formed at the windward surface of the air collecting hopper housing 3. At this time, the force-bearing surface of the air collecting hopper housing 3 is concentrated at this wind blocking surface, reducing the thrust of the natural wind on the air collecting hopper housing 3.

[0055] In the present utility model, air discharge openings 35 are respectively provided at the upper and lower ends of the air collecting hopper housing 3. At this time, the natural wind entering the arc-shaped inner cavity of the air collecting hopper housing 3 is discharged through the air discharge openings 35 under the guidance of the inner surface of the air collecting hopper housing 3, so that an invisible wind blocking surface is not formed at the windward surface of the air collecting hopper housing 3, ensuring the thrust of the natural wind on the air collecting hopper housing 3 and realizing light wind start.

[0056] In this embodiment, the outer side surface of the wind-gathering hopper housing 3 is an arc surface, and this arc surface can reduce the resistance of the wind-gathering hopper housing 3 to the wind during revolution, which is convenient for use.

[0057] In this embodiment, the overall structure of the wind-gathering hopper 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 it can be started with gentle wind.

[0058] 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 caused. And in the present utility model, the wind-gathering hopper housing 3 is used to block the natural wind and drive its revolution. In this embodiment, the servo drive motor 2 works through the speed reducer 21 to drive the wind-gathering hopper housing 3 to rotate, so as to adjust the angle of the wind-gathering hopper housing 3, and make the instantaneous position of the wind-gathering hopper housing 3 achieve the optimal work, and then the wind wheel can obtain the maximum working force.

[0059] When the speed reducer 21 drives the wind-gathering hopper housing 3 to rotate, the vibration of the speed reducer 21 will be transmitted to the wind-gathering hopper housing 3. And the cross section of the wind-gathering hopper housing 3 is an arc-shaped groove. At this time, the vibration of the wind-gathering hopper housing 3 will generate noise, resulting in noise pollution.

[0060] In this embodiment, noise reduction coatings are coated on both the inner and outer surfaces of the wind-gathering hopper housing 3. The noise reduction coatings are arranged in three layers from the inside to the outside, namely a primer 31, an intermediate coating 311 and a topcoat 312.

[0061] The primer 31 is coated with noise reduction paint, and the coating thickness is 10 - 20 μm; the intermediate coating 311 is coated with aerogel building thermal insulation paint, and the coating thickness is 3 - 5 mm; the topcoat 312 is an anti-aging topcoat, and the coating thickness is 30 - 40 μm.

[0062] With such a design, the noise reduction coating can reduce the noise generated by the resonance of the wind-gathering hopper housing 3, and then reduce the noise generated by the wind-gathering hopper housing 3 during operation, reducing noise pollution.

[0063] In this embodiment, the servo drive motor 2 and the speed reducer 21 are respectively fixedly installed on the mounting frame 1. Sound-absorbing and noise-reducing pads are respectively arranged at the joints of the servo drive motor 2 and the speed reducer 21 with the mounting frame 1. The sound-absorbing and noise-reducing pads can reduce the vibration transmitted to the wind-gathering hopper housing 3 when the servo drive motor 2 and the speed reducer 21 are working, and then reduce the generation of noise, improving the use effect.

[0064] 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 air collecting hopper housing 3 during operation, reduce the working noise to below 60 decibels, improve the use effect, and reduce noise pollution.

[0065] 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 concentrator for a vertical axis resistance type wind turbine, comprising a wind concentrator housing (3), characterized in that: The cross section of the wind collecting hopper shell (3) is in the shape of an arc groove, an open arc-shaped inner cavity is arranged inside the wind collecting hopper shell (3), a central axis (32) is vertically arranged inside the wind collecting hopper shell (3), the central axis (32) is arranged along the height direction of the wind collecting hopper shell (3), and the upper and lower ends of the central axis (32) extend to the outer sides of the upper and lower ends of the wind collecting hopper shell (3), respectively, and the inner and outer surfaces of the wind collecting hopper shell (3) are coated with a noise reduction coating.

2. The wind concentrator for a vertical axis resistance type wind turbine according to claim 1, 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 collecting scoop housing (3).

3. The wind concentrator for a vertical axis resistance type wind turbine according to claim 2, characterized in that: Reinforcing ribs (34) are respectively arranged at positions close to the support frame (33) on the inner surface of the wind collecting scoop shell (3), and the reinforcing ribs (34) are fixedly mounted on the inner surface of the wind collecting scoop shell (3).

4. The wind concentrator for a vertical axis resistance type wind turbine according to claim 3, characterized in that: An inclination angle α is provided between the windward surface of the wind focusing scoop shell (3) and the vertical surface, and the inclination angle α is 1-4°.

5. The wind concentrator for a vertical axis resistance type wind turbine according to claim 4, characterized in that: The upper and lower ends of the wind collecting bucket shell (3) are respectively provided with air discharge ports (35), and the natural wind entering the wind collecting bucket shell (3) is discharged to the outside through the air discharge ports (35).

6. The wind concentrator for a vertical axis resistance type wind turbine according to claim 5, characterized in that: The noise reduction coating is provided with three layers from the inside to the outside, namely a primer (31), a middle coating (311) and a top coating (312), and the primer (31), the middle coating (311) and the top coating (312) are integrally connected to each other.

7. The wind concentrator for a vertical axis resistance type wind turbine according to claim 6, characterized in that: The primer (31) is coated with noise reduction paint, and the coating thickness is 10-20 μm.

8. The wind concentrator for a vertical axis resistance type wind turbine according to claim 7, characterized in that: The middle coating (311) is applied with aerosolized building thermal insulation paint, with a coating thickness of 3-5 mm.

9. The wind concentrator for a vertical axis resistance type wind turbine according to claim 8, characterized in that: The topcoat (312) is an anti-aging topcoat with a coating thickness of 30-40 μm.

10. The wind concentrator for a vertical axis resistance type wind turbine according to claim 9, characterized in that: A wind collecting bucket drive assembly is arranged above or below the wind collecting bucket housing (3); the wind collecting bucket drive assembly comprises a servo drive motor (2), a reducer (21) is transmission-connected to the power output end of the servo drive motor (2), and the power output end of the reducer (21) is transmission-connected to one end of the corresponding central shaft (32).

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