Gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle

Abstract

The invention discloses a gearbox transmission mechanism of a single-rotor plant protection unmanned aerial vehicle. A main shaft is mounted on a transmission mechanism, a lubricating oil input port is formed in the upper end of the left side of the main shaft, and a lubricating oil output port is formed in the lower end of the right side of the main shaft. The gearbox transmission mechanism of the single-rotor plant protection unmanned aerial vehicle has the advantages of being high in stability, high in transmission efficiency, diversified in structural functionality and the like, and in theaircraft design process, the high rotating speed and the rotating direction of an engine can be converted through spiral bevel gears at the front end of a gearbox; meanwhile, a part of power can be transmitted to the tail rotor through a rear spiral bevel gear mechanism, so that the transmission efficiency of the engine fully meets the design and use requirements of an aircraft. Meanwhile, main transmission systems of the aircraft are concentrated in the gearbox, so that the resonance probability of the aircraft is reduced, and the aircraft is more stable.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a gearbox transmission mechanism for a single-rotor plant protection unmanned aerial vehicle. Background technique [0002] The value-guaranteed UAV has many advantages such as unique low cost, low loss, no pollution, reusable and high maneuverability, and plays a huge role in agriculture, such as: sowing, spraying, insect control, etc. [0003] The transmission mechanism of the value-guaranteed UAV is an important part of the unmanned helicopter. Most of the existing value-guaranteed UAVs with a take-off weight above 150 kg use a gearbox to convert the output speed of the engine and change the speed at the same time. The box design of the box is divided into two parts, the upper cover and the lower cover. This traditional design has the following defects: [0004] 1). The addition of a cantilever pulley mechanism to the gearbox will cause serious wear and tear ...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a gearbox transmission mechanism for a single-rotor plant protection UAV, which solves the problem that the addition of a cantilever pulley mechanism to the gearbox in the prior art will cause serious wear and tear at the installation place of the cantilever bearing, and long-term operation will cause the gear The gearbox wears out, so that the transmission gap increases and the efficiency decreases; at the same time, most of the gearboxes are one-piece upper cover, which is difficult to process and poor in economy; Time changes, the deformation of the frame directly leads to the deformation and displacement of the joint between the upper cover and the lower cover of the gearbox, resulting in the leakage of lubricating oil in the gearbox, and poor structural stability

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