A fixed-wing unmanned aerial vehicle for agricultural planting

Abstract

The invention relates to the technical field of plant protection unmanned aerial vehicles, and discloses a fixed-wing unmanned aerial vehicle for agricultural planting, which includes a fixed pillar, the two sides of the fixed pillar are fixedly connected with mounting brackets, and the bottom of the fixed pillar is movably socketed with a steering shaft. The fixed pillar is movably connected with a fixer, and the other end of the fixer is movably connected with an upper connecting piece. Through the setting of the limit block and the deviation correction device, when the UAV is turning normally, the block is away from the limit block under the action of the elastic member, and the normal steering of the UAV will not be affected at this time; when the UAV is moving along the runway When the sliding is affected by external factors such as impact and the tires deviate, it will drive the wheel fork, steering shaft, and intermediate shaft to rotate. When the intermediate shaft rotates, it will drive the limit block to rise or fall, so that the wedge block contacts the friction block and Squeeze, the greater the tire deflection, the greater the resistance, which can suppress the occurrence of deflection, reduce the deflection of the tire, and prevent the drone from deviating from the slide.

Description

technical field [0001] The invention relates to the technical field of plant protection drones, in particular to a fixed-wing drone for agricultural planting. Background technique [0002] Plant protection drones, also known as unmanned aerial vehicles, as the name implies, are unmanned light aircraft used for agricultural and forestry plant protection operations. In the modern agricultural production process, people generally use multi-rotor drones and fixed-wing drones. In agricultural production, the spraying operation is realized through ground remote control or navigation flight control, which can spray chemicals, seeds, powder, etc. Among them, fixed-wing drones are widely used because of their long battery life and strong load capacity. The lower part of the fixed-wing aircraft is used to support the aircraft and move on the ground during take-off and landing or taxiing on the ground. The landing gear is the only part that supports the entire aircraft, so it is an int...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some problems in the actual use of the existing fixed-wing UAV landing gear: First, the front landing gear of traditional fixed-wing When landing, not only a large buffer stroke is required, which causes serious bumping of the UAV, but also a large impact load and side load are required, which increases the bending moment of the fixed pillar and easily causes damage to the fixed pillar and wheel fork. Secondly, because the fixed-wing UAVs used for plant protection are limited by the environment and conditions of the site, when the fixed-wing aircraft lands or rolls, the tires at the bottom of the landing gear are prone to sideways when they are hit by the ground. As a result, the UAV cannot align with the runway when it is sliding and decelerating, and the aircraft is easy to slide out of the track. In the light case, it will damage the structural components of the UAV landing gear, and in severe cases, it will cause the aircraft to roll over or be damaged.

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