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Nozzle configuration mode of multi-rotor wing agricultural unmanned aerial vehicle and spraying system thereof

A configuration method and unmanned aerial vehicle technology, which is applied in the spraying system and agricultural aviation plant protection machinery industry, can solve the problems of increased droplet drift and complicated rotor wind field, so as to reduce the drift of liquid medicine, reduce environmental pollution, and avoid drift Effect

Active Publication Date: 2017-02-15
湖南植保无人机技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to balance the torque, the adjacent propellers of the multi-rotor agricultural UAV rotate in the opposite direction, which also makes the rotor wind field of the multi-rotor agricultural UAV far more complicated than that of the single-rotor, and the random design of the installation position of the nozzle will increase the drift of fog

Method used

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  • Nozzle configuration mode of multi-rotor wing agricultural unmanned aerial vehicle and spraying system thereof
  • Nozzle configuration mode of multi-rotor wing agricultural unmanned aerial vehicle and spraying system thereof
  • Nozzle configuration mode of multi-rotor wing agricultural unmanned aerial vehicle and spraying system thereof

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Experimental program
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Embodiment 1

[0045] see Figure 1-Figure 3 , a four-rotor agricultural unmanned aerial vehicle spraying system of the present embodiment includes an unmanned aerial vehicle fuselage 10, a rotor arm 12, a rotor motor 5, a rotor 1, a spray bar 2, a nozzle 3, a medicine box 7, and a diaphragm pump (Fig. not shown) and nozzles (not shown). The root end 121 of the rotor arm is connected with the fuselage 10 of the drone, and the tip end 122 of the rotor arm is connected with the rotor motor 5 . The rotor 1 is installed above the rotor motor 5 . The root end 21 of the spray rod is fixed on the tip 122 of the rotor arm, the tip 22 of the spray rod (that is, the free end of the spray rod) is connected to the nozzle 3, the medicine box 7 is installed under the fuselage 10 of the drone, and the inside of the medicine box 7 The liquid medicine enters the spray pipe under the action of the diaphragm pump and sprays out from the nozzle 3. Among them, the spray rod and the nozzle constitute the spray...

Embodiment 2

[0053] see Image 6 , and the difference from Embodiment 1 is that this embodiment is the second nozzle configuration of the four-rotor agricultural UAV. For the four-rotor agricultural UAV in this embodiment, a spray bar 2 and a nozzle 3 are respectively arranged under each rotor 1; The length d21 is equal, the two spray bars are located on the same straight line, and the free ends of the two spray bars are all facing the inside of the fuselage; the length d22 of the two spray bars arranged at the lower part of the left and right rear rotors of the UAV equal, and satisfy d21≤d22, the two spray booms are located on the same straight line, and the free ends of the two spray booms are both facing the outside of the fuselage.

Embodiment 3

[0055] see Figure 7 , the difference from Embodiment 1 and Embodiment 2 is that this embodiment is the third nozzle configuration mode of the four-rotor agricultural UAV. For the four-rotor agricultural UAV in this embodiment, a spray head is respectively arranged under each rotor; The directions of the free ends are all towards the left side of the fuselage; the two spray bars arranged on the lower part of the left and right rear rotors of the UAV are located on the same straight line, and the directions of the free ends of these two spray bars are all towards the right side of the fuselage; at the same time , the length d31 of the two spray bars arranged at the lower part of the left front and right rear rotors of the UAV is equal, and the length d32 of the two spray bars arranged at the lower part of the right front and left rear rotors of the UAV is equal, and d32≤d31 is satisfied.

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Abstract

The invention discloses a nozzle configuration mode of a multi-rotor wing agricultural unmanned aerial vehicle and a spraying system thereof. The nozzle configuration mode is to mount a spraying head in a rotary wing rotating area of a propeller; and the rotor wing rotating area includes a circle formed by 360-degree horizontal rotation of rotor wings during flying of the unmanned aerial vehicle and a cylinder vertically downwards radiated with the circle as the upper bottom. The spraying head is mounted in the rotor wing rotating area of the propeller; when the unmanned aerial vehicle performs the spraying operation, the propeller generates a lot of lower air currents in high-speed rotation; and medical liquor sprayed by the spraying head can effectively drop at the root parts of crops under the effect of the lower air currents, so that the pest and disease damage of the crops is effectively controlled.

Description

technical field [0001] The present invention relates to the technical field of agricultural aviation and plant protection machinery, in particular to a nozzle configuration method of a multi-rotor agricultural unmanned aerial vehicle and a spraying system using the configuration method, which is suitable for agricultural aviation plant protection machinery related to the prevention and control of crops and fruit trees and other pests industry. Background technique [0002] Unmanned Aviation Vehicle (UAV) is widely used in the control of pests and weeds in small and medium-sized fields in hilly areas due to its small size, no need for a runway, and flexible handling. In recent years, UAV-based agricultural aviation plant protection technology has been well developed in my country. [0003] Compared with ground plant protection machinery, the droplet size sprayed by agricultural drones is smaller, and the average diameter is usually less than 200 microns. Small droplet size ...

Claims

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Application Information

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IPC IPC(8): B64D1/18B64C27/08
CPCB64C27/08B64D1/18B64U2101/00
Inventor 付维陈居胜傅新哲
Owner 湖南植保无人机技术有限公司
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