CN116238693A - Broadcast unmanned aerial vehicle with adjustable broadcast amount - Google Patents

Abstract

The invention discloses a broadcasting unmanned aerial vehicle with adjustable broadcasting quantity, which comprises an unmanned aerial vehicle and a broadcasting mechanism; the broadcasting mechanism is mounted on the unmanned aerial vehicle; the broadcasting mechanism comprises a material box, a material conveying pipe and a broadcasting unit; the broadcasting unit comprises a barrel, a broadcasting plate arranged at the bottom of the barrel, a blowing and broadcasting assembly arranged at the upper end of the barrel and used for blowing and broadcasting materials in the barrel downwards, and an adjusting disc arranged at the upper end of the broadcasting plate and used for adjusting broadcasting quantity; the adjusting disc can rotate in the cylinder body; one end of the conveying pipe is communicated with the material box, and the other end of the conveying pipe is communicated with the cylinder; a plurality of broadcast holes are formed in the broadcast plate; the adjusting disc is provided with a plurality of adjusting holes; when the broadcasting quantity needs to be regulated, the regulating disc is rotated, and the size of the superposition area between the regulating hole and the broadcasting hole is changed. The unmanned sowing machine can adjust the sowing quantity of materials, and has high sowing flexibility and more uniform sowing.

Description

Broadcast unmanned aerial vehicle with adjustable broadcast amount

Technical Field

The invention relates to the technical field of agricultural unmanned aerial vehicles, in particular to a broadcasting unmanned aerial vehicle with adjustable broadcasting quantity.

Background

Under the condition that the land area is not fully utilized, a large amount of hilly areas are not effectively utilized, and in the southern area, a large amount of unutilized land such as mud and shoal exists, and normal machinery cannot go deep well to perform the operation. At present, the main sowing and fertilizing modes mainly adopt manpower sowing and mechanical sowing. The manpower broadcasting mode has the defects of low efficiency, large labor force, low economic benefit and poor broadcasting uniformity. The mechanical broadcasting mode comprises hand-held mechanical broadcasting and walking mechanical broadcasting. Hand-held mechanical broadcasting is very limited in the level of improving work efficiency; the walking type machinery is spread in hilly areas, mud and methane, shoal and other places, has the problems of difficult field laying, low travelling speed and the like, and is easy to damage farmlands and the self machinery.

The unmanned aerial vehicle has full-automatic autonomy and intellectualization, can greatly reduce the manual labor and improve the economic benefit. Therefore, in order to solve the above-mentioned problems of manual broadcasting and mechanical broadcasting, people begin to adopt unmanned aerial vehicles for sowing and fertilizing. Most of the mechanical broadcasting devices mounted on the unmanned aerial vehicle are of centrifugal rotary disc structures, materials are broadcasted under the centrifugal force of the centrifugal rotary disc, but the mechanical broadcasting devices have the problems that the broadcasting quantity of the materials (seeds, drug particles or fertilizers) cannot be adjusted, the broadcasting flexibility is low and the broadcasting is uneven.

Disclosure of Invention

The invention aims to overcome the problems and provide the broadcasting unmanned aerial vehicle with adjustable broadcasting quantity, which can adjust the broadcasting quantity of materials (seeds, drug particles or fertilizers), and has high broadcasting flexibility and more uniform broadcasting.

The aim of the invention is achieved by the following technical scheme:

an unmanned sowing machine capable of adjusting sowing quantity comprises an unmanned sowing machine and a sowing mechanism; the broadcasting mechanism is mounted on the unmanned aerial vehicle; the broadcasting mechanism comprises a material box, a material conveying pipe and a broadcasting unit; wherein, the liquid crystal display device comprises a liquid crystal display device,

the broadcasting unit comprises a cylinder body, a broadcasting plate arranged at the bottom of the cylinder body, a blowing and broadcasting assembly arranged at the upper end of the cylinder body and used for blowing and broadcasting materials in the cylinder body downwards, and an adjusting disc arranged at the upper end of the broadcasting plate and used for adjusting broadcasting quantity; wherein the adjusting disc can rotate in the cylinder; one end of the conveying pipe is communicated with the material box, and the other end of the conveying pipe is communicated with the cylinder; a plurality of broadcast holes are formed in the broadcast plate; the adjusting disc is provided with a plurality of adjusting holes; when the broadcasting quantity needs to be regulated, the regulating disc is rotated, and the size of the superposition area between the regulating hole and the broadcasting hole is changed.

The operation principle of the broadcasting unmanned aerial vehicle with the adjustable broadcasting quantity is as follows:

during operation, an airborne power supply transmits power to the blowing and sowing assembly and the unmanned aerial vehicle rotor wing, and before the unmanned aerial vehicle takes off, the broadcasting unit is operated and adjusted according to the required broadcasting amount of the area to be broadcasted; specifically, the adjusting disc is rotated to adjust the position of the adjusting disc on the broadcasting plate, so that the aperture positions of the adjusting holes on the adjusting disc and the broadcasting holes on the broadcasting plate are changed, the size of the overlapping area between the adjusting holes and the broadcasting holes is changed, and the condition of changing the broadcasting amount is further achieved; then, the unmanned aerial vehicle is controlled to fly to the upper air of a designated operation area to hover; the flight control system in the unmanned aerial vehicle transmits instructions to the blowing and broadcasting assembly and the unmanned aerial vehicle rotor wing; the blowing and sowing assembly starts working after receiving the instruction, and the working efficiency is adjusted according to the required material sowing quantity; in the operation process, after receiving an instruction of a flight control system, a material shifter in a material box adjusts the rotating speed of the material shifter according to the required material quantity to supply the material, the material is sent out from an outlet at the bottom of the material box and falls into a material conveying pipe, and the material is guided by the material conveying pipe to move to a material output port and enter the barrel; after the materials are distributed to the broadcasting unit according to the required quantity, the blowing and broadcasting assembly works to generate downward air flow, the air flow blows the materials in the cylinder body, and the materials are blown out from the position where the regulating hole and the broadcasting hole are overlapped and communicated, so that the materials are broadcasted; the material is sown in advance under the condition of the well processed sowing quantity of the sowing unit; after the unmanned aerial vehicle finishes the operation of the appointed operation area, the unmanned aerial vehicle returns to the ground under the instruction of the flight control system, then the material supplement and the replacement of the airborne power supply are carried out, the operation of the corresponding area is continued after the replacement is finished, and the operation is repeated until the whole sowing of the operation area is finished.

In a preferred embodiment of the present invention, the number of the broadcasting units is plural, and the feed pipe includes a main pipe and a branch pipe provided between each of the broadcasting units and the main pipe; the upper end of the main pipe is communicated with the material box, the upper end of the branch pipe is communicated with the lower end of the main pipe, and the lower end of the branch pipe is communicated with the cylinder body. By arranging a plurality of broadcasting units, the broadcasting range can be increased, thereby improving the broadcasting efficiency.

Preferably, a plurality of said broadcasting units are distributed under the unmanned aerial vehicle rotor. In the above-mentioned structure, broadcast the sowing unit and connect and arrange unmanned aerial vehicle rotor below through the conveying pipeline, when broadcasting, with the help of the rotor wind field that unmanned aerial vehicle rotor produced to for the material whereabouts provides the helping hand, and the material is scattered out the back through broadcasting the sowing unit at the air current of rotor wind field, has obtained decurrent air current helping hand, and the effect that gathers together and go deep into earth to the material is played to the utilization rotor air current that can be better.

In a preferred scheme of the invention, a driving assembly for driving the adjusting disc to rotate is arranged between the adjusting disc and the cylinder, and comprises a sliding groove arranged on the cylinder and a driving block arranged on the adjusting disc; the driving block is connected with the sliding groove in a sliding fit manner. Through setting up drive assembly, when needing to adjust the volume of broadcasting, through promoting the drive piece along circumferencial direction, drive the regulation disc and at the inside motion of barrel, the regulation disc takes place relative rotation with broadcasting the board to change the size of the coincidence area between regulation hole and the hole of broadcasting.

Further, the driving block extends to the outside of the cylinder through the sliding groove. The driving block is convenient to operate by hands of workers.

Preferably, the blowing and seeding assembly comprises a cover body arranged at the upper end of the cylinder body, a servo motor arranged on the cover body and fan blades arranged at the output end of the servo motor. In the structure, the output end of the flight control system of the unmanned aerial vehicle is connected to the input end of the servo motor, and when the unmanned aerial vehicle works, the flight control system of the unmanned aerial vehicle transmits instructions to the servo motor of the blowing and broadcasting assembly and the unmanned aerial vehicle rotor wing; the servo motor of the blowing and seeding assembly starts to rotate after receiving the instruction to drive the fan blades to rotate, and downward blowing is carried out on materials in the cylinder body, so that blowing and seeding of the materials are realized, and the rotating speed of the fan blades is adjusted according to the required material seeding amount.

Preferably, the blowing and sowing assembly further comprises a ventilation baffle plate arranged between the fan blade and the cylinder; the space between the ventilation baffle plate and the adjusting disc forms a broadcasting cavity, and the lower end of the conveying pipe is communicated with the broadcasting cavity. Through setting up above-mentioned structure, the flabellum is at the during operation, and ventilation baffle can prevent that the material from getting into in the flabellum, plays the effect that blocks the material, has guaranteed the normal work of flabellum.

Preferably, the diameters of the adjusting hole and the broadcasting hole are 2.0 cm-5.0 cm. In the structure, when the adjusting hole is completely overlapped with the broadcasting hole, the material has the largest broadcasting caliber, and the material can be discharged from the adjusting hole and the broadcasting hole.

Preferably, a plurality of ventilation holes are formed in the ventilation partition plate, and the diameter of each ventilation hole is smaller than 2mm. In the above-mentioned structure, set up the ventilation hole, the air current of being convenient for is got into from the ventilation hole and is broadcast in the chamber, blows and broadcast the material, also plays fine slow flow effect to the air current simultaneously, improves the homogeneity of broadcasting, and the diameter of material is 2mm ~ 4mm, consequently, the diameter of ventilation hole is less than 2mm can play effectual blocking effect to the material.

Preferably, the number of the branch pipes is 4-6, and the number of the broadcasting units is 4-6. The specific number can be adjusted according to the broadcasting quantity, and the number of the branch pipes corresponds to the number of the broadcasting units.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the broadcasting unmanned aerial vehicle with the adjustable broadcasting amount, before the unmanned aerial vehicle takes off, the broadcasting unit is operated and adjusted according to the required broadcasting amount of the area to be broadcasted; specifically, the adjusting disc is rotated to adjust the position of the adjusting disc on the broadcasting plate, so that the aperture positions of the adjusting holes on the adjusting disc and the broadcasting holes on the broadcasting plate are changed, the size of the overlapping area between the adjusting holes and the broadcasting holes is changed, and the condition of changing the broadcasting amount is further achieved; in the structure, the adjustment of the broadcast amount is realized by adjusting the matching of the disc and the broadcast plate, and under the adjustment of different gears, the adjustment holes and the broadcast holes realize the superposition and separation of different states, so that the size of a material outlet is further changed, the material broadcast amount is changed, and the broadcast flexibility is high.

2. According to the unmanned sowing machine with adjustable sowing quantity, the blowing and sowing component is arranged, when in operation, the blowing and sowing component blows downwards towards the materials in the cylinder body, the materials are disturbed, the materials are discharged from the adjusting holes and the sowing holes, and the sowing uniformity is improved.

3. According to the invention, the broadcasting unit is connected below the rotor wing of the unmanned aerial vehicle through the conveying pipe, and the rotor wing wind field generated by the rotor wing of the unmanned aerial vehicle is utilized during broadcasting, so that the assistance is provided for the falling of materials, and after the materials are scattered out through the broadcasting unit, the downward airflow assistance is obtained under the airflow of the rotor wing wind field, so that the rotor wing airflow can be better utilized to gather and penetrate into soil.

4. According to the preferred scheme, the ventilation baffle plate is arranged, so that on one hand, the effect of slow flow of air flow is achieved, on the other hand, materials can be better prevented from being mixed into the fan blades under the effect of the air flow, and the problem of damage to the fan blades is avoided.

Drawings

Fig. 1 is a schematic structural diagram of one embodiment of a broadcasting unmanned aerial vehicle with adjustable broadcasting amount in the present invention.

Fig. 2 to 3 are schematic structural views of the broadcasting mechanism according to the present invention, wherein fig. 2 is a perspective view and fig. 3 is a partial sectional view.

Fig. 4 is a schematic perspective view of a broadcasting unit according to the present invention.

Fig. 5 is a schematic view showing an internal structure of the broadcasting unit in the present invention.

Fig. 6 is a schematic perspective view of a broadcast unit according to the present invention, in which a blowing component is omitted.

Fig. 7 is a schematic view of the mounting structure of the barrel and the broadcast plate in the present invention.

Fig. 8 is a schematic perspective view of an adjusting disk in the present invention.

Fig. 9 is a schematic perspective view of a broadcast plate according to the present invention.

Fig. 10 is a schematic structural view of another embodiment of the driving assembly in the present invention.

Detailed Description

In order that those skilled in the art will well understand the technical solutions of the present invention, the following describes the present invention further with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

Example 1

Referring to fig. 1-2, the embodiment discloses a broadcasting unmanned aerial vehicle with adjustable broadcasting quantity, which comprises an unmanned aerial vehicle 2 and a broadcasting mechanism; the broadcasting mechanism is mounted on the unmanned aerial vehicle 2; the spreading mechanism comprises a material box 1, a material conveying pipe 3 and a spreading unit 5.

Referring to fig. 1-2, the material box 1 is used for storing materials, wherein the materials can be granular materials with smaller overall rounding degree, such as crop seeds, degradable medicine granules, fertilizers and the like, and each diameter is 2.0-4.0 mm.

Referring to fig. 1-9, the broadcasting unit 5 includes a barrel 6, a broadcasting plate 7 disposed at the bottom of the barrel 6, a blowing and broadcasting assembly 8 disposed at the upper end of the barrel 6 for blowing and broadcasting the material in the barrel 6 downward, and an adjusting disc 9 disposed at the upper end of the broadcasting plate 7 for adjusting broadcasting amount; wherein the adjusting disk 9 can rotate in the cylinder 6; one end of the material conveying pipe 3 is communicated with the material box 1, and the other end is communicated with the cylinder 6; a plurality of broadcast holes 7-1 are formed in the broadcast plate 7; the adjusting disc 9 is provided with a plurality of adjusting holes 9-1; when the broadcasting quantity needs to be regulated, the regulating disc 9 is rotated, and the size of the superposition area between the regulating hole 9-1 and the broadcasting hole 7-1 is changed.

Referring to fig. 1, a material box 1 is provided with a material puller for feeding material into a material conveying pipe 3.

Referring to fig. 5, the bottom surface of the adjusting disk 9 is in contact with the top surface of the broadcast plate 7, and the gap between the two mounting surfaces is almost negligible. The side wall of the adjusting disc 9 is connected with the inner wall of the cylinder 6 in a rotating way. In the structure, the adjusting disc 9 and the broadcasting plate 7 are tightly stacked, so that materials are prevented from entering between the adjusting disc 9 and the broadcasting plate 7 in the broadcasting process.

Referring to fig. 1 to 3, the number of the broadcasting units 5 is plural, and the feed pipe 3 includes a main pipe 3-1 and a branch pipe 3-2 provided between each of the broadcasting units 5 and the main pipe 3-1; the upper end of the main pipe 3-1 is communicated with the material box 1, the upper end of the branch pipe 3-2 is communicated with the lower end of the main pipe 3-1, and the lower end of the branch pipe 3-2 is communicated with the cylinder 6. By providing a plurality of broadcasting units 5, the broadcasting range can be increased, thereby improving the broadcasting efficiency.

Referring to fig. 1-3, a plurality of said broadcast units 5 are distributed under the unmanned aerial vehicle rotor. In the above-mentioned structure, broadcast sowing unit 5 is connected through conveying pipeline 3 and is arranged in unmanned aerial vehicle rotor below, and during broadcast sowing, the rotor wind field that produces with the help of the unmanned aerial vehicle rotor to for the material whereabouts provides the helping hand, and the material is scattered out the back through broadcast sowing unit 5, and at the air current of rotor wind field, obtained decurrent air current helping hand, the effect that gathers together and go deep into earth to the material that utilizes the rotor air current that can be better plays.

Referring to fig. 1 to 3, the number of the branch pipes 3-2 is 4 to 6, and the number of the broadcasting units 5 is 4 to 6. The specific number can be adjusted according to the broadcasting quantity, and the number of the branch pipes 3-2 corresponds to the number of the broadcasting units 5. In this embodiment, the number of unmanned aerial vehicle rotors is 4, and correspondingly, the number of branch pipes 3-2 is 4, and the number of broadcast units 5 is 4. Each branch 3-2 extends to below the unmanned aerial vehicle rotor, and the broadcasting unit 5 is placed below the unmanned aerial vehicle rotor. In the structure, the rotor wing wind field can generate the power assisting of falling of the materials higher, and the materials are broadcast.

Referring to fig. 2-8, a driving assembly for driving the adjusting disc 9 to rotate is arranged between the adjusting disc 9 and the cylinder 6, and the driving assembly comprises a sliding groove 10 arranged on the cylinder 6 and a driving block 11 arranged on the adjusting disc 9; the driving block 11 is connected with the sliding groove 10 in a sliding fit manner. Through setting up drive assembly, when needing to adjust the volume of broadcasting, through pushing drive piece 11 along circumferencial direction, drive adjusting disk 9 and broadcasting the board 7 and take place relative rotation at barrel 6 internal motion, adjusting disk 9 to change the size of the coincidence area between adjusting hole 9-1 and the broadcasting hole 7-1.

Referring to fig. 4, the driving block 11 extends to the outside of the cylinder 6 through the sliding groove 10. The aim is to facilitate the manual operation of the driving block 11 by a worker.

Referring to fig. 2-6, the blowing and seeding assembly 8 includes a cover 8-1 disposed at the upper end of the cylinder 6, a servo motor 8-2 disposed on the cover 8-1, and a fan blade 8-3 disposed at the output end of the servo motor 8-2. In the structure, the output end of the flight control system of the unmanned aerial vehicle 2 is connected to the input end of the servo motor 8-2, and when the unmanned aerial vehicle is in operation, the flight control system of the unmanned aerial vehicle 2 transmits instructions to the servo motor 8-2 of the blowing and broadcasting assembly 8 and the unmanned aerial vehicle rotor wing; the servo motor 8-2 of the blowing and seeding assembly 8 starts to rotate after receiving the instruction, drives the fan blade 8-3 to rotate, and blows downwards to the materials in the cylinder 6, so that blowing and seeding of the materials are realized, and the rotating speed of the fan blade 8-3 is adjusted according to the required material seeding amount.

Referring to fig. 2-6, the blowing and sowing assembly 8 further includes a ventilation partition 8-4 disposed between the fan blades 8-3 and the cylinder 6; the space between the ventilation baffle plate 8-4 and the adjusting disc 9 forms a broadcasting cavity 12, and the lower end of the conveying pipe 3 is communicated with the broadcasting cavity 12. Through setting up above-mentioned structure, flabellum 8-3 when the during operation, ventilation baffle 8-4 can prevent that the material from getting into flabellum 8-3 in, plays the effect that blocks the material, has guaranteed the normal work of flabellum 8-3.

Referring to fig. 4, the upper end of the cover 8-1 is further provided with a plurality of communication grooves 8-11 distributed along the circumferential direction. The purpose of the above-described structure is to allow an ambient air flow to enter the sowing cavity 12.

Referring to fig. 2-4, a material output port 13 is arranged at the lower end of the branch pipe 3-2, a material conveying butt joint 6-1 is arranged on the cylinder 6, and the material conveying butt joint 6-1 is communicated with the sowing cavity 12. The material delivery outlet 13 is connected with the material delivery butt joint mouth 6-1, the material delivery outlet 13 is in a conical shape, and the caliber of the material delivery outlet 13 is gradually reduced along the direction of material delivery, so that the material is conveniently guided into the sowing cavity 12. The branch pipe 3-2 is arranged obliquely downwards, the direction of the material outlet 13 can be optimally regulated according to the direction of the material outlet, and the adjustable angle of the material outlet 13 on the branch pipe 3-2 is within the range of 10-50 degrees.

Referring to fig. 4 to 9, the adjusting disk 9 is fully provided with the adjusting holes 9-1, and a plurality of adjusting holes 9-1 are regularly distributed on the adjusting disk 9; the broadcasting plate 7 is fully provided with broadcasting holes 7-1, and a plurality of broadcasting holes 7-1 are regularly distributed on the broadcasting plate 7; the number of the adjusting holes 9-1 is smaller than the number of the broadcasting holes 7-1; the diameters of the adjusting hole 9-1 and the broadcasting hole 7-1 are 2.0 cm-5.0 cm. In the above structure, when the adjusting hole 9-1 is completely coincident with the broadcasting hole 7-1, the material has the largest broadcasting caliber, and can be discharged from the adjusting hole 9-1 and the broadcasting hole 7-1. When the adjustment disc 9 is rotated to a specified position, all of the adjustment holes 9-1 will completely coincide with the broadcast holes 7-1.

Referring to fig. 5 to 6, the ventilation partition 8-4 is provided with a plurality of ventilation holes 8-41, and the diameter of the ventilation holes 8-41 is smaller than 2mm. In the structure, the ventilation holes 8-41 are arranged, so that air flows can conveniently enter the sowing cavity 12 from the ventilation holes 8-41, the materials are blown and sown, and meanwhile, a good slow flow effect is achieved on the air flows, and the sowing uniformity is improved; the diameter of the material is 2 mm-4 mm, and the diameter of the vent hole 8-41 is smaller than 2mm, so that the diameter of the vent hole 8-41 is smaller than the smallest diameter of the material, and the material can be effectively blocked.

Referring to fig. 1-4, the broadcasting unmanned aerial vehicle further comprises an onboard power supply 4 and a flight control system. The onboard power supply 4 provides power for the servo motor 8-2, the unmanned aerial vehicle rotor wing and the material shifter. The flight control system is connected with the servo motor 8-2, the unmanned aerial vehicle rotor wing and the material shifter in a wired or wireless mode. The on-board power supply 4 is an on-board battery.

When the broadcasting unmanned aerial vehicle works, the flying height range of the broadcasting unmanned aerial vehicle is 2.0 m-5.0 m.

Referring to fig. 1 to 9, the working principle of the broadcasting unmanned aerial vehicle with adjustable broadcasting amount is as follows:

during operation, the airborne power supply 4 transmits power to the blowing and sowing assembly 8, the sowing device and the unmanned aerial vehicle rotor wing, and before the unmanned aerial vehicle 2 takes off, the sowing unit 5 is manually operated and adjusted according to the required sowing amount of the area to be sowed; specifically, the driving block 11 is rotated to drive the adjusting disc 9 to rotate in the cylinder 6, the position of the adjusting disc 9 on the broadcasting plate 7 is adjusted, the aperture positions of the adjusting hole 9-1 on the adjusting disc 9 and the broadcasting hole 7-1 on the broadcasting plate 7 are changed, and therefore the size of the overlapping area between the adjusting hole 9-1 and the broadcasting hole 7-1 is changed, and the condition of changing the broadcasting amount is achieved; then, manually operating the unmanned aerial vehicle 2 to fly to the upper air of the designated operation area for hovering; the flight control system in the unmanned aerial vehicle 2 transmits instructions to the servo motor 8-2 of the blowing and broadcasting assembly 8 and the unmanned aerial vehicle rotor wing; the servo motor 8-2 of the blowing and seeding assembly 8 starts to rotate after receiving the instruction, and the rotating speed is adjusted according to the required material seeding amount; in the operation process, after a command of a flight control system is sent by a material shifter in a material box 1, the rotation speed of the material shifter is regulated according to the required material quantity to supply the material, the material is sent out from an outlet at the bottom of the material box 1 and falls into a main pipe 3-1 of a material conveying pipe 3, the material is respectively conveyed to each branch pipe 3-2 under the guidance of the main pipe 3-1, the material moves towards a material output port 13, and then is input into a material conveying butt joint port 6-1 from the material output port 13 with a regulated angle and enters a broadcasting cavity 12 in a barrel 6; after the materials are distributed to each broadcasting unit 5 according to the required quantity, a servo motor 8-2 in a blowing and broadcasting assembly 8 rotates to drive a fan blade 8-3 to rotate to generate downward airflow, the airflow plays a role in slowing down the flow through a ventilation baffle plate 8-4 and preventing the materials from entering the fan blade 8-3 to damage a structure, the materials in a broadcasting cavity 12 of a cylinder 6 are blown and broadcast after the slowing-down airflow comes out from the ventilation baffle plate 8-4, and the materials are blown out from a position where an adjusting hole 9-1 is overlapped and communicated with a broadcasting hole 7-1 to finish broadcasting; the materials are sown in advance under the condition of the well processed sowing quantity of the sowing unit 5; after the unmanned aerial vehicle 2 finishes the operation of the appointed operation area, the unmanned aerial vehicle 2 returns to the ground under the instruction of the flight control system, then the unmanned aerial vehicle 2 returns to the ground, the material is supplemented and the onboard battery is replaced, the operation of the corresponding area is continued after the replacement is finished, and the above operation is repeated until the whole sowing of the operation area is finished.

Example 2

Referring to fig. 10, other specific structures in this embodiment are the same as those in embodiment 1, except that the driving assembly further includes a driving motor, a driving gear provided at an output end of the driving motor, and a driving gear 14 provided on the driving block 11, the driving gear 14 being engaged with the driving gear, and the driving motor being fixable on an outer wall of the cylinder 6. The driving motor is connected with the onboard power supply 4 and the flight control system. The drive motor is controlled to rotate through the flight control system, so that the driving gear is driven to rotate, the transmission gear 14 is driven to move, the rotation of the adjusting disc 9 is finally realized, the automatic adjustment of the broadcasting quantity is realized, and the broadcasting flexibility is further improved.

The adjusting disc 9 is rotatably connected with the sowing plate 7 through a rotating shaft. The adjusting disc 9 is convenient to rotate, so that the automatic control and the adjustment of the broadcast amount are realized.

The foregoing is illustrative of the present invention, 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 invention are intended to be included within the scope of the invention.

Claims (10)

1. The broadcasting unmanned aerial vehicle with the broadcasting quantity adjustable is characterized by comprising an unmanned aerial vehicle and a broadcasting mechanism; the broadcasting mechanism is mounted on the unmanned aerial vehicle; the broadcasting mechanism comprises a material box, a material conveying pipe and a broadcasting unit; wherein, the liquid crystal display device comprises a liquid crystal display device,

the broadcasting unit comprises a cylinder body, a broadcasting plate arranged at the bottom of the cylinder body, a blowing and broadcasting assembly arranged at the upper end of the cylinder body and used for blowing and broadcasting materials in the cylinder body downwards, and an adjusting disc arranged at the upper end of the broadcasting plate and used for adjusting broadcasting quantity; wherein the adjusting disc can rotate in the cylinder; one end of the conveying pipe is communicated with the material box, and the other end of the conveying pipe is communicated with the cylinder; a plurality of broadcast holes are formed in the broadcast plate; the adjusting disc is provided with a plurality of adjusting holes; when the broadcasting quantity needs to be regulated, the regulating disc is rotated, and the size of the superposition area between the regulating hole and the broadcasting hole is changed.

2. The broadcasting unmanned aerial vehicle with adjustable broadcasting quantity according to claim 1, wherein the broadcasting units are multiple in number, and the conveying pipeline comprises a main pipe and a branch pipe arranged between each broadcasting unit and the main pipe; the upper end of the main pipe is communicated with the material box, the upper end of the branch pipe is communicated with the lower end of the main pipe, and the lower end of the branch pipe is communicated with the cylinder body.

3. The unmanned aerial vehicle of claim 2, wherein a plurality of the broadcasting units are distributed below the unmanned aerial vehicle rotor.

4. A broadcasting unmanned aerial vehicle with adjustable broadcasting quantity according to claim 1 or 3, wherein a driving component for driving the adjusting disk to rotate is arranged between the adjusting disk and the cylinder, and the driving component comprises a sliding groove arranged on the cylinder and a driving block arranged on the adjusting disk; the driving block is connected with the sliding groove in a sliding fit manner.

5. The adjustable broadcast amount unmanned aerial vehicle of claim 4, wherein the drive block extends through the sliding slot to the exterior of the barrel.

6. A broadcast unmanned aerial vehicle with adjustable broadcast rate according to claim 1 or 3, wherein the broadcast-blowing assembly comprises a cover arranged at the upper end of the cylinder, a servo motor arranged on the cover, and a fan blade arranged at the output end of the servo motor.

7. The adjustable broadcast amount broadcast unmanned aerial vehicle of claim 6, wherein the broadcast and blowing assembly further comprises a vent spacer disposed between the fan blade and the barrel; the space between the ventilation baffle plate and the adjusting disc forms a broadcasting cavity, and the lower end of the conveying pipe is communicated with the broadcasting cavity.

8. The unmanned sowing machine with adjustable sowing quantity according to claim 1, wherein the diameters of the adjusting hole and the sowing hole are 2.0 cm-5.0 cm.

9. The unmanned sowing machine with adjustable sowing quantity according to claim 7, wherein the ventilation partition plate is provided with a plurality of ventilation holes, and the diameter of each ventilation hole is smaller than 2mm.

10. The unmanned sowing vehicle with adjustable sowing quantity according to claim 2, wherein the number of the branch pipes is 4-6, and the number of the sowing units is 4-6.

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