Analysis of Mechanical Characteristics of the Air Duct of Orchard Fog Gun Applicator Based on ANSYS Workbench

With the large-scale planting of fruit trees, the traditional pesticide spraying agronomy and equipment have been difficult to meet the needs of agricultural management in large orchards. At present, the spray gun sprayer is one of the important equipment for pesticide spraying in large orchards. The structure and stability of the air duct is one of the main factors affecting the performance of the fog gun dispenser. In this paper, ANSYS Workbench is used to analyze the mechanical characteristics of the air duct of the fog gun dosing machine with a range of 80 m. The analysis results show that under the rated working condition, the maximum stress of the air duct is 36.93 MPa, which is far less than the allowable stress of the material; The maximum deformation is 0.30 mm, which can meet the normal working requirements of the fog gun dosing machine; The maximum stress of the air duct appears at the bottom of the air duct, and the requirements for the welded junction are high. The welded junction can be placed directly above the air duct to reduce the risk of failure. The vibration frequency range of the first four modes of the air duct is 70.5～141.2 hz. When the external excitation frequency is within this range, attention should be paid to the problem of resonance failure.