An agricultural unmanned helicopter

Abstract

The invention discloses an agricultural unmanned helicopter. The agricultural unmanned helicopter comprises a helicopter body comprising a frame; a rotor head for fixing a main rotor is arranged on the frame; the main rotor is mounted on a rotor head main rotor holder, and is driven through a motor in the helicopter body; spray rods are additionally arranged at the lower rear position of the frame; the frame backwards extends to form a tail pipe; a four-blade tail gear box is arranged at the tail end of the tail pipe; pesticide chests are arranged at the left and right sides of the lower part of the frame; a foot stand is additionally fixed at the lower part of the frame; the frame comprises a helicopter body first-layer plate, a helicopter body second-layer plate and a helicopter body third-layer plate fixedly connected in sequence from top to bottom; the helicopter body first-layer plate and the helicopter body second-layer plate are put around upper and lower positions of a main shaft and thus are fixedly connected; the helicopter body second-layer plate and the helicopter body third-layer plate are fixedly connected through second-layer plate and third-layer plate connecting aluminum pipes; and helicopter body side plates at the left and right sides are mounted at the front end of the space between the helicopter body second-layer plate and the helicopter body third-layer plate. Because of the three-layer integrated frame, the weight is light, the strength is high, the structure is simple, and the helicopter body gravity center can be quickly adjusted.

Description

technical field [0001] The invention belongs to the field of aircraft manufacturing, belongs to the B64 category in the IPC classification, and specifically relates to an industrial-grade electric unmanned helicopter for agricultural and forestry plant protection (plant protection) operations. Background technique [0002] With the application research of unmanned helicopters in various industries, people have found that unmanned helicopters play an increasingly significant role in all aspects of social production and life. The use of modern high-tech machinery and equipment can not only improve work efficiency and quality, reduce operating costs, but also reduce the risk of personnel operations and protect the safety of life and property. Among them, the agricultural unmanned helicopter has many advantages compared with the operation of conventional plant protection machinery. Its operating efficiency is 8 times that of the overhead sprayer with the highest control efficien...

AI Technical Summary

Problems solved by technology

At present, the core fuselage structure of the existing agricultural unmanned helicopters is almost a left and right splint structure. The overall stability of this structure is insufficient. Under different load conditions, the flight conditions of agricultural unmanned helicopters vary greatly. Some agricultural unmanned helicopters have the following disadvantages:

[0004] (1) The stability of the overall structure of the agricultural unmanned helicopter is insufficient, and the carrying capacity of the maneuvering load is small;

[0005] (2) The overall structure of agricultural unmanned helicopters is mechanically complex, and the standardized production cost is relatively high;

The structure disclosed in this invention patent has a heavy fuselage and a low strength ratio, and the fuselage is prone to deformation during flight; at the same time, due to the limitation of the hole position of the side plate, the parts attached to the side plate must be installed on a fixed position, and the position cannot be moved or adjusted, so the position of the center of gravity of the fuselage is not easy to adjust

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