Search

CN-119975788-B - Centrifugal atomizer of tertiary variable spraying and unmanned aerial vehicle equipment thereof

CN119975788BCN 119975788 BCN119975788 BCN 119975788BCN-119975788-B

Abstract

The invention relates to a centrifugal atomizing nozzle for three-level variable spraying and unmanned aerial vehicle equipment thereof, and belongs to the technical field of plant protection unmanned aerial vehicles. The device mainly comprises a brushless motor, a transmission assembly, an atomization assembly and a variable implementation assembly. The brushless motor passes through drive assembly and transmits power to atomizing subassembly, and atomizing subassembly comprises infusion axle, upper and lower floor's atomizing dish and atomizing disk cover, and upper and lower floor's atomizing dish is provided with rectangle atomizing tooth respectively, realizes liquid medicine atomizing spraying through high-speed rotation. The variable implementation assembly comprises a stepping motor, a cylindrical cam and a sliding sleeve, the cylindrical cam is controlled to rotate through the stepping motor, the movement track of the sliding sleeve is regulated, and the three-level variable spraying function of independent liquid feeding of the upper atomization plate, independent liquid feeding of the lower atomization plate and simultaneous liquid feeding of the lower atomization plate is realized. The spray head can accurately adjust the pesticide application amount, improve the pesticide utilization rate, reduce the environmental pollution and is suitable for agricultural plant protection operation.

Inventors

  • CAO PEI
  • WU XINTONG
  • ZHANG NAN
  • REN YUXIANG
  • Zhou Yangshuo

Assignees

  • 西北农林科技大学

Dates

Publication Date
20260512
Application Date
20250331

Claims (8)

  1. 1. A centrifugal atomizing spray head for three-level variable spraying is characterized by comprising a transmission assembly (2), wherein a brushless motor (1) is arranged on the transmission assembly (2), the lower end of the transmission assembly (2) is connected with an atomizing assembly (3), the upper end of the transmission assembly (2) is further provided with a variable implementation assembly (4), the variable implementation assembly (4) comprises a stepping motor (401), the stepping motor (401) is arranged on a stepping motor supporting seat (402), the stepping motor supporting seat (402) is arranged above the transmission assembly (2), the lower end of the motor supporting seat (201) is provided with a cylindrical cam (403), the cylindrical cam (403) and a transfusion shaft (301) are coaxially arranged, the cylindrical cam (403) is provided with a three-layer track curve, the atomizing assembly (3) comprises an atomizing disc cover (306), the lower end of the atomizing disc cover (306) is provided with an upper atomizing disc (303), a first spraying space is formed between the atomizing disc cover (306) and the upper atomizing disc (303), the lower end of the upper atomizing disc (303) is provided with a lower atomizing disc (305), the lower atomizing disc (305) is provided with a bowl-shaped atomizing disc (305) with a second atomizing disc structure, and the upper disc (305) is provided with a bowl-shaped atomizing disc structure, a plurality of rectangular atomizing teeth are uniformly arranged in the inner sides of bowls of the upper atomizing disc (303) and the lower atomizing disc (305), the rectangular atomizing teeth are distributed by taking the center of the upper atomizing disc (303) and the center of the lower atomizing disc (305) as a central annular array, an infusion shaft (301) is sequentially communicated with a first spraying space and a second spraying space through a transmission assembly (2), an inlet pipe of the infusion shaft (301) is connected with a liquid supply device, and a brushless motor (1) controls the atomization assembly (3) to rotate through the transmission assembly (2).
  2. 2. Centrifugal atomizer for three-level variable spraying according to claim 1, characterized in that the transmission assembly (2) comprises a motor support (201), and the brushless motor (1) is fixed on the motor support (201).
  3. 3. The centrifugal atomizer for three-level variable spraying according to claim 2, wherein the transmission assembly (2) further comprises a transmission large gear (204) and a transmission small gear (203), a connecting rod (202) is arranged at the upper end of the transmission small gear (203), an output shaft of the brushless motor (1) is connected with the transmission small gear (203) through the connecting rod (202), and the transmission large gear (204) is meshed with a gear of the transmission small gear (203).
  4. 4. A centrifugal atomizer for three-level variable spraying according to claim 3, wherein a transmission bearing (205) is arranged at the upper end of the transmission large gear (204), a first upper sealing cover (206) is arranged at the upper end of the transmission bearing (205), a first lower sealing cover (207) is arranged at the lower end of the transmission bearing (205), and the infusion shaft (301) is communicated with the atomizing assembly (3) through the inside of the transmission bearing (205).
  5. 5. The centrifugal atomizer for three-stage variable spraying according to claim 4, wherein a first upper O-shaped sealing ring (208) is further arranged at the upper end of the transmission bearing (205), a first lower O-shaped sealing ring (209) is arranged at the lower end of the transmission bearing (205), the upper end of the transmission bearing (205) is fixedly sealed with the first upper sealing cover (206) through the first upper O-shaped sealing ring (208), and the lower end of the transmission bearing (205) is fixedly sealed with the first lower sealing cover (207) through the first lower O-shaped sealing ring (209).
  6. 6. The centrifugal atomizing nozzle for three-level variable spraying according to claim 1, wherein an upper atomizing disk bearing (302) is arranged between the atomizing disk cover (306) and the upper atomizing disk (303), a second upper sealing cover (307) is arranged at the upper end of the upper atomizing disk bearing (302) through a second upper O-shaped sealing ring (309), and a second lower sealing cover (308) is arranged at the lower end of the upper atomizing disk bearing (302) through a second lower O-shaped sealing ring (310).
  7. 7. Centrifugal atomizing nozzle for three-level variable spraying according to claim 1, characterized in that the upper atomizing disk (303) and the lower atomizing disk (305) are provided with a lower atomizing disk bearing (304), the upper end of the lower atomizing disk bearing (304) is provided with a third upper sealing cover (311) through a third upper O-ring (313), and the lower end of the lower atomizing disk bearing (304) is provided with a third lower sealing cover (312) through a third lower O-ring (314).
  8. 8. Unmanned aerial vehicle device with three-stage variable spraying centrifugal atomizer, based on one of the three-stage variable spraying centrifugal atomizer according to any of claims 1 to 7, characterized in that the infusion shaft (301) is connected with the liquid supply of the unmanned aerial vehicle device.

Description

Centrifugal atomizer of tertiary variable spraying and unmanned aerial vehicle equipment thereof Technical Field The invention belongs to the technical field of plant protection unmanned aerial vehicles, and particularly relates to a centrifugal atomizing nozzle for three-level variable spraying and unmanned aerial vehicle equipment thereof. Background The plant protection unmanned aerial vehicle is widely applied to the agricultural pesticide application process by virtue of the advantages of high working efficiency, strong environmental adaptability, good sedimentation effect of sprayed pesticide liquid on crop canopy and the like. The commonly used spray heads in plant protection and pesticide application devices are mainly divided into pressure spray heads and centrifugal spray heads. The pressure type spraying system has the characteristics of wide atomization particle size spectrum, weak powder adaptability, correlation between particle size and flow rate and the like. When the system pressure changes, the pressure at the pressure type spray head also changes, and further the particle size of the mist drops changes. Therefore, there is a problem in that the system pressure variation range is small and the low pressure control accuracy is poor. The centrifugal spraying system has the characteristics of particle size adjustment, unhooking of flow, large flow and stronger powder adaptability, and is more advantageous in fruit trees, high-dose powder operation and large-flow scenes. The centrifugal spray nozzle belongs to an ultra-low volume spray nozzle, and is characterized in that a motor is utilized to drive an atomizing disk to rotate at a high speed to generate centrifugal force to atomize liquid medicine, and a plant protection unmanned aerial vehicle is combined with the centrifugal spray nozzle, so that the centrifugal spray nozzle is a main development direction of modern high-efficiency plant protection machinery and a decrement pesticide application technology. At present, a centrifugal atomizing nozzle mainly adopts a large-capacity and constant atomizing nozzle, so that the dosage is large, the liquid medicine is easy to run off from a target, and pesticide waste and environmental pollution are caused. Along with the progress of technology, the existing centrifugal atomizing nozzle has a plurality of inconveniences in use, so the demand for novel atomizing nozzles of agricultural plant protection unmanned aerial vehicles is growing increasingly. The spray nozzle structure is adjusted to achieve variable spraying of liquid medicine, so that the problem to be solved is solved urgently. Disclosure of Invention The invention provides a centrifugal atomizing nozzle with three-level variable spraying and unmanned aerial vehicle equipment thereof, which are used for solving the technical problems of large dosage of the centrifugal atomizing nozzle, pesticide waste and environmental pollution phenomena and inconvenient use of the traditional centrifugal atomizing nozzle in the prior art. In order to achieve the above purpose, the invention adopts the following technical scheme: The centrifugal atomizing nozzle comprises a transmission assembly, wherein a brushless motor is arranged on the transmission assembly, the lower end of the transmission assembly is connected with an atomizing assembly, the atomizing assembly comprises an atomizing disc cover, the lower end of the atomizing disc cover is provided with an upper atomizing disc, a first spraying space is formed between the atomizing disc cover and the upper atomizing disc, the lower end of the upper atomizing disc is provided with a lower atomizing disc, a second spraying space is formed between the upper atomizing disc and the lower atomizing disc, an infusion shaft penetrates through the transmission assembly and is sequentially communicated with the first spraying space and the second spraying space, an inlet pipe of the infusion shaft is connected with a liquid supply device, and the brushless motor controls the atomizing assembly to rotate through a transmission assembly mechanism. The transmission assembly comprises a motor supporting seat, and the brushless motor is fixed on the motor supporting seat. The transmission assembly further comprises a transmission large gear and a transmission small gear, the upper end of the transmission small gear is provided with a connecting rod, an output shaft of the brushless motor is connected with the transmission small gear through the connecting rod, and the transmission large gear is meshed with the gear of the transmission small gear. The upper end of the transmission gear wheel is provided with a transmission bearing, the upper end of the transmission bearing is provided with a first upper sealing cover, the lower end of the transmission bearing is provided with a first lower sealing cover, and the infusion shaft passes through the inside of the transmission bearing to be communicated with the at