UAV (Unmanned Aerial Vehicle) catapult-assisted take-off device

Abstract

The invention discloses a UAV (Unmanned Aerial Vehicle) catapult-assisted take-off device, belonging to the technical field of lightweight aviation aircrafts. According to the device, high-pressure gas is adopted as a power source, and an air cylinder-pulley block type catapult propulsion manner is adopted, so that the traction force is large and is convenient to adjust; pulley blocks can be used for amplifying traction speed of an air cylinder in a multiplied manner, so that UAVs can obtain relatively high launching speed, and meanwhile, the length of a sliding rail is reduced; the launch angle of the UAV catapult-assisted take-off device is adjusted through two groups of worm gear-worm structures, and the adjustment on pitch angle and left-and-right deflection angle can be completed simultaneously, so that the adjustment of UAV launch angle is more flexible, and UAV launching is more accurate; the UAV catapult-assisted take-off device is simple in structure, easy in manufacturing, convenient in assembling and mounting and convenient in transportation; the device is good in structural stiffness, high in reliability and long in service life, the UAV catapult-assisted take-off device is used for launching the UAVs through being fixedly mounted on a platform or mounted on a launch vehicle, and thus, the application is more extensive.

Description

technical field [0001] The invention belongs to the technical field of light aviation aircraft, and in particular relates to a catapult take-off device for an unmanned aerial vehicle. Background technique [0002] An unmanned aircraft is a kind of aerial vehicle mainly controlled by radio remote control or by its own program. Compared with manned aircraft, unmanned aircraft has the advantages of small size, low cost, convenient use, low requirements for combat environment, and strong battlefield survivability. It is favored by armies all over the world. There is no cockpit on the UAV, but it is equipped with autopilot, program control device and other equipment; personnel on the ground, on the ship or at the remote control station of the parent aircraft use radar equipment to perform remote control, tracking, positioning, telemetry and digital transmission, and use radio remote control Equipment and self-contained programs to control the drone. UAVs have been widely used i...

AI Technical Summary

Problems solved by technology

However, there are the following disadvantages. It only relies on the triangular bracket to adjust the launch angle, and the adjustment degree is limited, and it mainly adjusts the pitch angle, and it is inconvenient to adjust the left and right deflection angles; it only relies on a fixed pulley and cylinder to complete the propulsion of the catapult, and does not use a pair of pulleys. The cylinder traction speed is amplified, so that the speed obtained by the UAV is limited, and the length of the slide rail is increased at the same time; in addition, the structural rigidity of the device is not good, and the launch vibration is relatively large

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