CN116018915A - Double-airflow guiding type broadcasting unmanned aerial vehicle - Google Patents
Double-airflow guiding type broadcasting unmanned aerial vehicle Download PDFInfo
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- CN116018915A CN116018915A CN202211401622.6A CN202211401622A CN116018915A CN 116018915 A CN116018915 A CN 116018915A CN 202211401622 A CN202211401622 A CN 202211401622A CN 116018915 A CN116018915 A CN 116018915A
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Abstract
The utility model discloses a double-airflow guiding type broadcasting unmanned aerial vehicle, which comprises an unmanned aerial vehicle and a broadcasting mechanism; the broadcasting mechanism comprises a material box, a broadcasting pipe and two groups of airflow driving mechanisms; the broadcasting pipe comprises a broadcasting main pipe, a bifurcation pipe and two secondary bifurcation pipes, and the broadcasting main pipe is communicated between the material box and the bifurcation pipe; the broadcasting main pipe is provided with two installation cylinders which are symmetrically arranged on a plane, and the inner cavity of the installation cylinder is communicated with the inner cavity of the broadcasting main pipe; the air flow driving mechanism is arranged in the installation cylinder body and comprises fan blades and an air flow driving motor; the bifurcation pipe is provided with two bifurcation passages which are respectively communicated with the two secondary bifurcation pipes; the splitter plate is vertically arranged and centrally arranged at the outlet end of the broadcasting main pipe; the secondary branch pipe is obliquely arranged, and a plurality of blanking ports with downward openings are arranged on the secondary branch pipe; the utility model adopts a vertical broadcasting mode, and can broadcast materials in a fixed point and order.
Description
Technical Field
The utility model relates to a sowing unmanned aerial vehicle, in particular to a double-airflow guiding type sowing unmanned aerial vehicle.
Background
Agricultural production mainly involves four stages of cultivation pipe harvest. The current sowing modes comprise a manual sowing mode and a mechanical sowing mode, wherein the manual sowing mode has the advantages of high labor intensity, low efficiency, uneven sowing, too-dense influence on the quality of seeds and too-sparse waste of farmland resources. And the mechanical seeding can be divided into two forms of hand-held mechanical seeding and walking mechanical seeding. The former still needs the labourer to bear the equipment and sow the soil, and the latter sows for walking mechanical equipment, has a lot of problems such as field-falling difficulty, low travelling speed and difficult turning around.
With the gradual maturation of the medium and small unmanned aerial vehicle flight technology, the advantages of vertical take-off and landing, autonomous flight, no influence of terrain and the like enable unmanned aerial vehicle sowing to be possible. For example, an unmanned aerial vehicle for broadcasting and a broadcasting device thereof disclosed in the patent of the utility model with the publication number of CN207135485U adopt a motor to realize the rotation of a broadcasting disc, so that the purpose of uniformly broadcasting or broadcasting materials (seeds or granular fertilizers) can be realized, but the following disadvantages exist at the same time:
the broadcasting unmanned can throw the materials (seeds or granular fertilizers) through the horizontally rotating broadcasting turntable, and the direction and the position of the falling point of the materials are difficult to control, so that the materials cannot be broadcasted regularly at fixed points.
Disclosure of Invention
The utility model aims to overcome the problems and provide the double-air-flow-guide type broadcasting unmanned aerial vehicle, which adopts a vertical broadcasting mode and can accurately control the falling point direction and the position of materials, so that the materials can be broadcasted in a fixed point and in order.
The aim of the utility model is achieved by the following technical scheme:
a double-airflow guiding type broadcasting unmanned aerial vehicle comprises an unmanned aerial vehicle and a broadcasting mechanism arranged on the unmanned aerial vehicle;
the broadcasting mechanism comprises a material box, a broadcasting pipe and two groups of airflow driving mechanisms which are symmetrically arranged on the plane; a material stirring device for stirring out automatic materials is arranged in the material box;
the broadcasting pipe comprises a broadcasting main pipe, a bifurcation pipe and two secondary branch pipes which are symmetrically arranged on the plane, the top of the broadcasting main pipe is communicated with the outlet of the material box, and the bottom of the broadcasting main pipe is communicated with the bifurcation pipe; the broadcasting main pipe is provided with two installation cylinders which are symmetrically arranged on a plane, and the inner cavity of the installation cylinder is communicated with the inner cavity of the broadcasting main pipe; one end of the installation cylinder is fixedly connected to the side face of the broadcasting main pipe, and the other end of the installation cylinder extends upwards obliquely to be far away from the broadcasting main pipe;
two bifurcation channels are arranged on the bifurcation pipe, inlets of the two bifurcation channels are communicated with the bottom of the broadcast main pipe, and a flow dividing plate is arranged between inlets of the two bifurcation channels; the outlets of the two bifurcation passages are respectively communicated with the two secondary bifurcation pipes; the splitter plate is vertically arranged and centrally arranged at the outlet end of the broadcasting main pipe; the two installation cylinders are symmetrically arranged about the splitter plate; the secondary branch pipe is obliquely arranged, and a plurality of blanking ports with downward openings are arranged on the secondary branch pipe;
the air flow driving mechanism is arranged in the mounting cylinder body and comprises fan blades and an air flow driving motor, and an output shaft of the air flow driving motor is fixedly connected with the fan blades; the fan blade is arranged on one side close to the broadcasting main pipe.
The working principle of the double-airflow guiding type broadcasting unmanned aerial vehicle is as follows:
when the unmanned aerial vehicle is in work, a worker controls the unmanned aerial vehicle to fly to the upper side of a designated working area for hovering; the flight control system of the unmanned aerial vehicle transmits instructions to the airflow driving motors of the two groups of airflow driving mechanisms at the same time, and the airflow driving motors drive the fan blades to rotate. The two groups of air flow driving mechanisms are symmetrically arranged in an inclined mode, and after high-speed air flow generated by the fan blades at the two sides enters the inner cavity of the broadcasting main pipe, the phenomenon of air flow opposite flushing is generated, so that a protection effect of collision prevention is achieved on materials (seeds or granular fertilizers); meanwhile, the air flow continuously flows downwards along the inner cavity of the broadcasting main pipe, so that the discharging speed of the materials is improved.
After the preparation work is finished, the broadcasting operation is started, the flight control system of the unmanned aerial vehicle transmits broadcasting signals to the material stirring device, the material stirring device adjusts the rotating speed of the material stirring device according to the broadcasting quantity to rotate, and materials (seeds or fertilizers) start to be conveyed downwards under the action of the material stirring device and enter a broadcasting main pipe. When the material falls into the inner cavity of the broadcasting main pipe, the material is impacted by the air flow which is opposite to the air flow driving mechanisms at two sides, so that downward acceleration is obtained; when the material is close to the outlet of the main broadcasting pipe downwards, the material is divided into two strands under the action of the dividing plate, and the two strands of material with equal quantity respectively fall into two bifurcation passages of the bifurcation pipe and then move into the secondary bifurcation pipe. The secondary branch pipes are provided with material openings according to preset intervals, materials quickly pass through the secondary branch pipes under the action of larger opposite-side airflow opposite-impact acceleration, and because of the openings of the secondary branch pipes, part of materials fly out from the blanking openings of the secondary branch pipes in the conveying process, and the rest of the last part of residual materials are separated from the tail end openings of the secondary branch pipes.
After the operation of the appointed operation area is completed, the unmanned aerial vehicle returns to the ground under the instruction of the flight control system, then the material is supplemented and the onboard battery is replaced, the operation of the corresponding area is continued after the replacement is completed, and the operation is repeated until the whole broadcasting of the operation area is completed.
In a preferred embodiment of the utility model, the angle between the axis of the mounting cylinder and the axis of the broadcasting main pipe is in the range of 20 ° to 60 °. Therefore, the guide airflow can be better opposite to each other, and acceleration and protection effects are provided for materials.
In a preferred scheme of the utility model, a sleeve is arranged in the inner cavity of the broadcast main pipe, and two groups of vent holes are arranged on the side surface of the sleeve; the vent hole realizes that the inner cavity of the broadcast main pipe is communicated with the inner cavity of the installation cylinder. Through the structure, the high-speed air flow generated by the fan blades at the two sides passes through the vent holes of the sleeve, so that the air flow has the function of slowing down the flow, the downward acceleration of the material is achieved, and the damage of the material due to collision with the wall is protected.
Further, the diameter of the vent hole is 1.0mm to 2.0mm.
According to the utility model, a limiting guide plate is fixedly arranged below the blanking port, the limiting guide plate is of a semicircular pipe structure, and the opening direction of the limiting piece is the same as the downward inclined direction of the secondary branch pipe. Through the structure, after the material passes through the secondary branch pipe, the specific falling direction of the material can be controlled through the limiting guide plate.
Further, the included angle between the limiting guide plate and the secondary branch pipe ranges from 30 degrees to 90 degrees.
According to a preferred scheme of the utility model, the number of blanking ports on the secondary branch pipe is 5-8;
the blanking port on the secondary branch pipe is 2.0 to 5.0cm in size, and the outlet at the tail end of the secondary branch pipe is 2.0 to 5.0cm in size.
Compared with the prior art, the utility model has the following beneficial effects:
1. the double-airflow guiding type broadcasting unmanned aerial vehicle disclosed by the utility model adopts a double-sided airflow opposite-impact mode, so that a protection effect is provided for materials, collision with the pipe wall is avoided, downward airflows are generated by the airflow driving mechanisms at the two sides, downward acceleration is further increased due to airflow collision, the materials are guided to accelerate downward movement, and track confusion is avoided.
2. The utility model adopts a mode of double-side air flow opposite flushing to accelerate falling materials downwards, thereby realizing more accurate seeding and reducing offset. Under the influence of bilateral air flow, the acceleration of the material is further changed, so that the collision of the material on the pipe wall in the traditional mode is effectively avoided, and the material can better accelerate along the air flow direction.
3. The secondary branch pipe can better meet the requirement of the material on sowing under the action of centrifugal acceleration, and has the functions of drainage and orientation.
Drawings
Fig. 1 is a side view of a dual airflow directed broadcast drone of the present utility model.
Fig. 2 is a schematic perspective view of the broadcasting mechanism of the present utility model.
Fig. 3 is a cross-sectional view of the broadcast mechanism of the present utility model.
Detailed Description
In order that those skilled in the art will well understand the technical solutions of the present utility model, the following describes the present utility model further with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.
Referring to fig. 1-3, the double-airflow guiding type broadcasting unmanned aerial vehicle of the embodiment comprises an unmanned aerial vehicle 1 and a broadcasting mechanism arranged on the unmanned aerial vehicle 1; the sowing mechanism comprises a material box 2, a sowing pipe and two groups of air flow driving mechanisms which are symmetrically arranged on the plane; a material stirring device for stirring out automatic materials is arranged in the material box 2; (not shown in the figure, the specific structure can refer to the existing structure, and a screw feeder can be adopted).
Referring to fig. 2-3, the broadcasting pipe comprises a main broadcasting pipe 3, a branch pipe 4 and two secondary branch pipes 5 which are symmetrically arranged on the plane, the top of the main broadcasting pipe 3 is communicated with the outlet of the material box 2, and the bottom of the main broadcasting pipe 3 is communicated with the branch pipe 4; two installation cylinders 6 which are symmetrically arranged on the broadcasting main pipe 3 in a plane are integrally arranged, and the inner cavity of each installation cylinder 6 is communicated with the inner cavity of the broadcasting main pipe 3; one end of the installation cylinder 6 is fixedly connected to the side surface of the main broadcasting pipe 3, and the other end of the installation cylinder 6 extends obliquely upwards to be far away from the main broadcasting pipe 3; wherein the included angle between the axis of the installation cylinder 6 and the axis of the broadcasting main pipe 3 is 20-60 degrees. Therefore, the guide airflow can be better opposite to each other, and acceleration and protection effects are provided for materials.
Referring to fig. 2-3, two bifurcation passages 4-1 are provided on the bifurcation pipe 4, inlets of the bifurcation passages 4-1 are all communicated with the bottom of the broadcast main pipe 3, and a flow dividing plate 7 is provided between inlets of the bifurcation passages 4-1; the outlets of the two bifurcation passages 4-1 are respectively communicated with two secondary branch pipes 5; the splitter plate 7 is vertically arranged and centrally arranged at the outlet end of the broadcasting main pipe 3; the two mounting cylinders 6 are symmetrically arranged about the splitter plate 7; the secondary branch pipe 5 is obliquely arranged, and a plurality of blanking ports 5-1 with downward openings are arranged on the secondary branch pipe 5.
Referring to fig. 2-3, the air flow driving mechanism is arranged in the mounting cylinder 6, and comprises fan blades 8 and an air flow driving motor 9, wherein an output shaft of the air flow driving motor 9 is fixedly connected with the fan blades 8; the fan blade 8 is closer to the main sowing pipe 3 than the airflow driving motor 9.
Referring to fig. 2-3, a limiting guide plate 10 is fixedly arranged below the blanking port 5-1, the limiting guide plate 10 is of a semicircular tube structure, and the opening direction of the limiting piece is the same as the downward inclined direction of the secondary branched tube 5. Through the structure, after the material passes through the secondary branch pipe 5, the specific falling direction of the material can be controlled through the limiting guide plate 10.
Further, the included angle between the limiting guide plate 10 and the secondary branch pipe 5 is in the range of 30-90 degrees.
Referring to fig. 2-3, the number of blanking ports 5-1 on the secondary branch pipe 5 is 5 to 8; the blanking port 5-1 on the secondary branch pipe 5 is 2.0 to 5.0cm in size, and the outlet at the tail end of the secondary branch pipe 5 is 2.0 to 5.0cm in size.
Referring to fig. 2-3, a sleeve 11 is arranged in the inner cavity of the broadcasting main pipe 3, and two groups of vent holes 11-1 are arranged on the side surface of the sleeve 11; the vent hole 11-1 realizes the communication between the inner cavity of the broadcast main pipe 3 and the inner cavity of the installation cylinder 6. Through the structure, the high-speed air flow generated by the fan blades 8 at the two sides passes through the vent holes 11-1 of the sleeve 11, so that the air flow is retarded, the downward acceleration of the material is realized, and the damage to the wall of the material is protected.
Further, the diameter of the vent hole 11-1 is 1.0mm to 2.0mm.
Referring to fig. 1-3, the working principle of the double air flow guiding type unmanned sowing machine in this embodiment is as follows:
when the unmanned aerial vehicle is in work, a worker controls the unmanned aerial vehicle 1 to fly above a designated working area for hovering; the flight control system of the unmanned aerial vehicle 1 transmits instructions to the airflow driving motors 9 of the two groups of airflow driving mechanisms at the same time, and the airflow driving motors 9 drive the fan blades 8 to rotate. Wherein, because the two groups of air flow driving mechanisms are arranged in a symmetrical inclined mode, after the high-speed air flow generated by the fan blades 8 at the two sides enters the inner cavity of the main broadcasting pipe 3, the phenomenon of air flow opposite flushing is generated, and the protection effect of collision prevention is provided for materials (seeds or granular fertilizers); at the same time, the air flow continues to flow downwards along the inner cavity of the broadcasting main pipe 3, so that the discharging speed of the materials is improved.
After the preparation work is finished, the broadcasting operation is started, the flight control system of the unmanned aerial vehicle 1 transmits broadcasting signals to the material stirring device, the material stirring device adjusts the rotating speed of the material stirring device according to the broadcasting quantity to rotate, and materials (seeds or fertilizers) start to be conveyed downwards under the action of the material stirring device and enter the broadcasting main pipe 3. When the material falls into the inner cavity of the broadcasting main pipe 3, the material is impacted by the air flow which is opposite to the air flow driving mechanisms at two sides, so that downward acceleration is obtained; when the material is close to the outlet of the main broadcasting pipe 3 downwards, the material is divided into two strands under the action of the dividing plate 7, and the two strands of the material with equal quantity fall into the two branch channels 4-1 of the branch pipe 4 respectively and then move into the secondary branch pipe 5. The secondary branch pipes 5 are provided with material openings according to preset intervals, materials quickly pass through the secondary branch pipes 5 under the action of larger opposite-side airflow opposite-impact acceleration, and because of the openings of the secondary branch pipes 5, part of materials fly out from the blanking openings 5-1 of the secondary branch pipes 5 in the conveying process, and the rest of the last rest of materials are separated out from the tail end openings of the secondary branch pipes 5.
After the operation of the appointed operation area is completed, the unmanned aerial vehicle 1 returns to the ground under the instruction of the flight control system, then the unmanned aerial vehicle 1 returns to the ground, the material supplement and the replacement of the airborne battery are carried out, the operation of the corresponding area is continued after the replacement is completed, and the above operation is repeated until the whole broadcasting of the operation area is completed.
The foregoing is illustrative of the present utility model, and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made without departing from the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A double-airflow guiding type broadcasting unmanned aerial vehicle comprises an unmanned aerial vehicle and a broadcasting mechanism arranged on the unmanned aerial vehicle; it is characterized in that the method comprises the steps of,
the broadcasting mechanism comprises a material box, a broadcasting pipe and two groups of airflow driving mechanisms which are symmetrically arranged on the plane; a material stirring device for stirring out automatic materials is arranged in the material box;
the broadcasting pipe comprises a broadcasting main pipe, a bifurcation pipe and two secondary branch pipes which are symmetrically arranged on the plane, the top of the broadcasting main pipe is communicated with the outlet of the material box, and the bottom of the broadcasting main pipe is communicated with the bifurcation pipe; the broadcasting main pipe is provided with two installation cylinders which are symmetrically arranged on a plane, and the inner cavity of the installation cylinder is communicated with the inner cavity of the broadcasting main pipe; one end of the installation cylinder is fixedly connected to the side face of the broadcasting main pipe, and the other end of the installation cylinder extends upwards obliquely to be far away from the broadcasting main pipe;
two bifurcation channels are arranged on the bifurcation pipe, inlets of the two bifurcation channels are communicated with the bottom of the broadcast main pipe, and a flow dividing plate is arranged between inlets of the two bifurcation channels; the outlets of the two bifurcation passages are respectively communicated with the two secondary bifurcation pipes; the splitter plate is vertically arranged and centrally arranged at the outlet end of the broadcasting main pipe; the two installation cylinders are symmetrically arranged about the splitter plate; the secondary branch pipe is obliquely arranged, and a plurality of blanking ports with downward openings are arranged on the secondary branch pipe;
the air flow driving mechanism is arranged in the mounting cylinder body and comprises fan blades and an air flow driving motor, and an output shaft of the air flow driving motor is fixedly connected with the fan blades; the fan blade is arranged on one side close to the broadcasting main pipe.
2. The double air flow directed broadcasting unmanned aerial vehicle of claim 1, wherein the angle between the axis of the mounting cylinder and the axis of the broadcasting main pipe is in the range of 20 ° to 60 °.
3. The double air flow guiding type broadcasting unmanned aerial vehicle according to claim 1, wherein a sleeve is arranged in the inner cavity of the broadcasting main pipe, and two groups of vent holes are arranged on the side surface of the sleeve; the vent hole realizes that the inner cavity of the broadcast main pipe is communicated with the inner cavity of the installation cylinder.
4. A double air flow directed broadcast unmanned aerial vehicle according to claim 3, wherein the diameter of the vent is 1.0mm to 2.0mm.
5. The double-airflow-guide type broadcasting unmanned aerial vehicle according to claim 1, wherein a limiting guide plate is fixedly arranged below the blanking port, the limiting guide plate is of a semicircular pipe structure, and the opening direction of the limiting piece is the same as the downward inclination direction of the secondary branch pipe.
6. The double air flow directed broadcast seed drone of claim 5, wherein an included angle between the limiting baffle and the secondary duct ranges from 30 ° to 90 °.
7. The double air flow guiding type broadcasting unmanned aerial vehicle according to claim 1, wherein the number of blanking ports on the secondary branched pipe is 5 to 8;
the blanking port on the secondary branch pipe is 2.0 to 5.0cm in size, and the outlet at the tail end of the secondary branch pipe is 2.0 to 5.0cm in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401622.6A CN116018915A (en) | 2022-11-09 | 2022-11-09 | Double-airflow guiding type broadcasting unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401622.6A CN116018915A (en) | 2022-11-09 | 2022-11-09 | Double-airflow guiding type broadcasting unmanned aerial vehicle |
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| Publication Number | Publication Date |
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| CN116018915A true CN116018915A (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211401622.6A Pending CN116018915A (en) | 2022-11-09 | 2022-11-09 | Double-airflow guiding type broadcasting unmanned aerial vehicle |
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| CN (1) | CN116018915A (en) |
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- 2022-11-09 CN CN202211401622.6A patent/CN116018915A/en active Pending
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