Adjustable hot fog system of plant protection unmanned aerial vehicle

A plant protection drone and adjustable technology, applied in the field of plant protection drone adjustable thermal fog system, can solve the problems of large atomization resistance, limited load of plant protection drone, and subsidence that cannot meet the expected requirements. Ensure stability and ensure the effect of outdoor operation efficiency

Pending Publication Date: 2021-04-09
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The droplet size after atomization of the direct pressure nozzle is too large, and the total number of droplets produced by the atomization of the unit volume of liquid medicine is obviously insufficient, which affects the plant protection effect; although the droplet size of the centrifugal nozzle is relatively small after atomization, but The atomized droplets are easily affected by the wind field generated by the rotor of the drone, which affects the settlement of the atomized liquid medicine on the crops, and the settlement does not meet the expected requirements, affecting the plant protection effect
[0004] At present, it is also possible to increase the amount of spraying and the number of spraying times to ensure the total number of droplets produced by the atomization of the unit volume of liquid medicine and the settlement of the liquid medicine on the crops. However, the load of the plant protection drone is limited, which affects the operation efficiency.
[0005] In addition, the internal atomization resistance of the existing plant protection UAV liquid atomization device is large, and it lacks a device for adjusting the spray volume, which cannot meet the plant protection requirements for different types of crops and crops with different growth densities.

Method used

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  • Adjustable hot fog system of plant protection unmanned aerial vehicle
  • Adjustable hot fog system of plant protection unmanned aerial vehicle
  • Adjustable hot fog system of plant protection unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The adjustable hot fog system of the plant protection UAV, the plant protection UAV flies above the crops, the air pump 41 in the temperature increasing and boosting device 4-1 works, and the air is delivered to the rubber hose 2 44 and the rubber hose 2 44 through the tee respectively through the rubber hose 1 43. Rubber hose three 45, on the one hand, air passes through rubber hose two 44 and enters the medicine liquid in the upper end of medicine box 3 to pressurize the drug solution; on the other hand, air enters the carburetor 47 through rubber hose three 45; 46 enters the carburetor 47 and mixes with the air that passes through the carburetor 47. The mixed gas enters the ignition channel 48-1 and is ignited by the ignition plug 48-2 and burns in the combustion chamber 48. The medicine in the medicine box 3 The liquid enters the atomizing cylinder 401 through the rubber tube 5 405 and the liquid spray hole 401-3, and the high-temperature and high-pressure gas genera...

Embodiment 2

[0061] The adjustable thermal fog system of the plant protection UAV controls the positive and negative rotation of the push rod motor 402-1 in the micro electric push rod 402 on the adjustable heat fog device 4-3, and the push rod motor 402-1 passes through the gear box 402 -2 Drive the push rod 402-3 to move downward or upward, the push rod 402-3 moves downward or upward with the outer casing 403 through the fixed seat 403-1, and the outer casing 403 carries the inner support rod through the threaded rod 404-1 404 moves downward or upward, so that the movable flap 404-2 moves downward or upward with the inner strut 404, changing the gap between the movable flap 404-2 and the fixed flap 401-1, and realizing the spray angle The adjustment can meet the plant protection requirements for different types of crops with different growth densities.

[0062] The housing tube 403 is slidingly connected with the atomizing tube 401 through a sealing sleeve to ensure the airtightness of t...

Embodiment 3

[0064] On the basis of Embodiment 1 and Embodiment 2, the UAV frame 1 is provided with a left fuselage 10 and a right fuselage 11, and a rectangular cavity is formed between the left fuselage 10 and the right fuselage 11. 12. The right fuselage 11 is provided with a rectangular cavity 2 13, and the inner wall of the rectangular cavity 13 is symmetrically provided with bumps 13-1, and the battery 2 is inserted into the rectangular cavity 2 13, and is carried by the bumps 13-1 Limiting position, the side wall of the battery 2 is symmetrically provided with a long groove 20, which realizes the rapid replacement of the battery 2 and the UAV frame 1, and ensures the outdoor operation efficiency of the plant protection UAV; the medicine box 3 is embedded and connected in a rectangular In the cavity one 12, the medicine box 3 is arranged at the central position of the UAV frame 1, which ensures the flight stability of the plant protection UAV.

[0065] The U-shaped nozzle 4-2 adopts ...

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Abstract

The adjustable hot fog system comprises an unmanned aerial vehicle rack, a battery, a pesticide box and a hot spray warming and pressurizing device, a left vehicle body and a right vehicle body are arranged on the unmanned aerial vehicle rack, a first rectangular cavity is formed between the left vehicle body and the right vehicle body, a second rectangular cavity is formed in the right vehicle body, and protruding blocks are symmetrically arranged on the inner wall of the second rectangular cavity; the battery is inserted into the second rectangular cavity, the pesticide box is connected into the first rectangular cavity in an embedded mode, the hot spray warming and pressurizing device is connected with the pesticide box and comprises a warming and pressurizing device body, a U-shaped spray pipe and an adjustable hot spray device, and the U-shaped spray pipe is connected with the middle of the pesticide box and one end of the U-shaped spray pipe. The adjustable hot fog device is connected with the other end of the U-shaped spray pipe, the design of the U-shaped spray pipe can reduce the length size of the spray pipe on the premise that the performance of a hot fog system is not affected, the adjustable hot fog device can achieve hot fog spraying direction and dispersion range adjustment, and therefore the plant protection effect is improved.

Description

technical field [0001] The invention belongs to the technical field of plant protection equipment. Specifically, the invention relates to an adjustable thermal fog system for a plant protection drone. Background technique [0002] When modern agricultural planting requires large-scale spraying of liquid medicine, plant protection drones are usually used for operations. Plant protection drones can perform plant protection operations through remote control devices. The drones are equipped with medicine boxes and liquid medicine atomization devices. The atomizing device sprinkles the liquid medicine on the crops in the form of spray. [0003] At present, the nozzles of the plant protection UAV liquid atomization device mainly include direct pressure nozzles and centrifugal nozzles. The droplet size after atomization of the direct pressure nozzle is too large, and the total number of droplets produced by the atomization of the unit volume of liquid medicine is obviously insuffi...

Claims

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Application Information

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IPC IPC(8): B64D1/18B64C39/02A01M7/00
CPCB64D1/18B64C39/024A01M7/0089A01M7/005A01M7/0085A01M7/0057B64U2101/00
Inventor 刘立超张千伟陈黎卿毕全鹏王韦韦张春岭
Owner ANHUI AGRICULTURAL UNIVERSITY
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