Catapult of flywheel-type high-speed unmanned aerial vehicle

Abstract

The invention relates to a launcher of an unmanned aerial vehicle, in particular to a catapult of an unmanned aerial vehicle. According to the technical scheme of the catapult of the flywheel-type high-speed unmanned aerial vehicle, the unmanned aerial vehicle is arranged on a tackle and located at a launching position before being launched, a clutch in a power system is in a disconnected state, a motor drives a flywheel to rotate, and the rotating speed is set according to launching requirements; when the unmanned aerial vehicle is launched, the clutch of the power system is connected, the flywheel drives a winding wheel to rotate, a traction rope is wound into the winding wheel and drives the tackle and the unmanned aerial vehicle to move in an accelerated mode, when the tackle moves to a tackle position sensor, the clutch is controlled to be disconnected, the tackle continues to move forwards and is blocked by a blocking device, the winding wheel stops rotating, and the unmanned aerial vehicle flies out accordingly; after launching is finished, the tackle is pulled back to the initial launching position. According to the catapult of the unmanned aerial vehicle, the flywheel serves as an energy storage element and can rapidly accelerate the unmanned aerial vehicle to a large speed on a very short track, and catapult launching of the unmanned aerial vehicle with a high speed requirement is achieved.

Description

Technical field [0001] The invention relates to a drone launching device, and in particular to a drone catapult. Background technique [0002] In recent years, with the development of science and technology and military technical equipment, drones have played an increasingly important role in various fields, and more and more drones of various types have been developed. Among them, some small high-speed fixed-wing UAVs (takeoff speed is not less than 25m / s) have put forward new requirements for the launch system. [0003] Since small high-speed fixed-wing UAVs usually have low mass and limited power energy, and their take-off speed is relatively high, they cannot obtain take-off speed through their own acceleration. Therefore, other auxiliary devices are usually used to help them take off. Currently, the commonly used take-off methods for UAVs include: rocket boost, gas-liquid ejection, gas ejection, elastic ejection, etc. Rocket boost uses a booster rocket as power. The d...

AI Technical Summary

Problems solved by technology

Rocket boosting uses the booster rocket as the power, and the UAV flies away from the launch device under the thrust of the booster rocket. It has the advantages of mature technology, large thrust range, low cost, poor safety and concealment, and consumable equipment and technical support costs. higher disadvantage

Gas-liquid ejection mainly uses gas-hydraulic energy as the power of UAV ejection, which has the advantages of good safety and concealment, good economy, good adaptability, etc., and has the disadvantages of complex and huge system, difficult technology, difficult transportation, and high cost.

Gas ejection refers to the direct use of gunpowder gas to launch drones, which usually has high anti-overload requirements for drones and poor adjustability

Elastic ejection converts the elastic potential energy of elastic elements (such as rubber bands and springs) into mechanical energy as power to provide the speed required for the drone to take off. It has the advantages of simple structure and light mechanism, but it is only suitable for small drones. , and limited by the characteristics of the elastic element, the use of elastic ejection has problems such as low launch speed, non-uniform change of launch overload, long acceleration distance, etc.

Even if the pulley block is used to accelerate, there is a large amount of energy consumed and the problem of low mechanical efficiency

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