US 12,285,007 B2
Intelligent air-assisted spraying device for orchards and spraying method thereof
Liping Chen, Beijing (CN); Hanjie Dou, Beijing (CN); Changyuan Zhai, Beijing (CN); Fan Feng, Beijing (CN); Wei Zou, Beijing (CN); Si Li, Beijing (CN); Shuo Yang, Beijing (CN); and Jian Song, Beijing (CN)
Assigned to Intelligent Equipment Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing (CN)
Filed by Intelligent Equipment Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing (CN)
Filed on May 21, 2024, as Appl. No. 18/670,662.
Application 18/670,662 is a continuation of application No. PCT/CN2024/089283, filed on Apr. 23, 2024.
Claims priority of application No. 202311076593.5 (CN), filed on Aug. 25, 2023.
Prior Publication US 2025/0064045 A1, Feb. 27, 2025
Int. Cl. A01M 7/00 (2006.01)
CPC A01M 7/0089 (2013.01) [A01M 7/0042 (2013.01); A01M 7/0014 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An intelligent air-assisted spraying device for orchards comprising:
a traction mechanism, wherein the traction mechanism is provided with a spray tank;
a spraying system, wherein the spraying system comprises a main body and a plurality of spraying tubes, the main body is connected to the spray tank, first ends of the plurality of spraying tubes are communicated with the main body, second ends of the plurality of spraying tubes are configured to spray pesticide liquid, and the second ends of the plurality of spraying tubes are capable of rotating;
a collecting system, wherein the collecting system is disposed on the traction mechanism and is configured to collect a contour of a canopy, a volume of the canopy, and branch and leaf density of a fruit tree;
a processing-controlling system, wherein the processing-controlling system is disposed on the traction mechanism and is configured to perform grid partitioning on the canopy of the fruit tree based on the contour of the canopy, the volume of the canopy, and the branch and leaf density of the fruit tree to obtain a plurality of spraying areas, calculate an air outlet angle of each spraying tube according to the plurality of spraying areas, and control a rotation of the second end of each spraying tube according to the air outlet angle of each spraying tube, thereby to match a spraying range of the plurality of spraying tubes with the contour of the canopy of the fruit tree;
a plurality of adjustment mechanisms, configured to adjust air outlet areas of the plurality of spraying tubes, respectively; and wherein each of the plurality of adjustment mechanisms comprises:
a first motor, disposed in the main body;
a transmission component, disposed in the respective spraying tube; wherein the transmission component is connected to the first motor;
a plurality of fan blades, disposed in an annular manner along an inner wall of the respective spraying tube; wherein first sides of the plurality of fan blades are connected to the first motor through the transmission component, second sides of the plurality of fan blades define an air outlet of the respective spraying tube, which is a circular hole enclosed by the second sides of the plurality of fan blades, and the transmission component is configured to rotate to drive the plurality of fan blades to rotate through the first motor, thereby to adjust an area of the air outlet of the respective spraying tube;
wherein the transmission component of each adjustment mechanism comprises:
a bevel gear, disposed in the respective spraying tube, wherein the bevel gear is connected to the first motor;
a first gear, disposed in the respective spraying tube, wherein the first gear directly meshes with the bevel gear;
a rotating disc, disposed in the respective spraying tube, wherein a part of an outer side and an inner side of the rotating disc are provided with teeth, and the part of the outer side of the rotating disc meshes with the first gear, and the teeth of the part of the outer side of the rotating disc are configured to control a range adjusting the area of the air outlet of the respective spraying tube;
a plurality of second gears, disposed inside the respective spraying tube, wherein the plurality of second gears are disposed in an annular manner along the inner side of the rotating disc, each second gear meshes with the inner side of the rotating disc, and the plurality of second gears are respectively connected to the plurality of fan blades;
wherein the processing-controlling system is configured to calculate the air outlet areas of the plurality of spraying tubes based on the contour of the canopy, the volume of the canopy, the branch and leaf density of the fruit tree, and the air outlet angles of the plurality of spraying tubes, and drive the first motor of each of the plurality of adjustment mechanisms to rotate based on a corresponding one of the air outlet areas of the plurality of spraying tubes; and in each adjustment mechanism, the first motor is configured to rotate the first gear through the bevel gear, to enable the first gear to drive the rotating disc to rotate through the teeth of the part of the outer side of the rotating disc, thereby to drive the plurality of fan blades to rotate through the plurality of second gears meshing with the teeth of the inner side of the rotating disc, to adjust the area of the air outlet enclosed by the plurality of fan blades to the air outlet area of the respective spraying tube.