Rotating ejection device for small and medium unmanned aerial vehicle

Abstract

The invention relates to a rotating ejection device for small and medium unmanned aerial vehicles, which is characterized in that two motors are fixedly arranged on a stand column of an ejection frame; gears of the two motors are respectively installed on output shafts of the two motors; a gear disc is sheathed on the gears of the two motors, and the inner teeth of the gear disc are engaged with the gears of the two motors; a counterweight bar and a linkage crossbar are arranged above the gear disc, are symmetrically clamped and sheathed on a supporting bar and are tightly fixed through two fastening pieces; a counterweight is installed on the counterweight bar and can slide along the counterweight bar; one end of a movable swing arm is hinged with the end of the linkage crossbar through a connecting piece; and the other end of the movable swing arm is hinged with an unmanned aerial vehicle gripping and releasing mortise lock. By controlling the rotating speed of the motors of the rotating ejection device to control the ejection speed of the small and medium unmanned aerial vehicles to be within 0 to 50m / s, the overload of the small and medium unmanned aerial vehicles during takeoff can be effectively reduced, and the service lives of the unmanned aerial vehicles can be prolonged. The rotating ejection device for the small and medium unmanned aerial vehicles has the characteristics that the production cost and the using cost are low, the occupied area is small, the device is convenient to operate and can be mounted on vehicles and ships for use.

Description

technical field [0001] The invention belongs to the technical field of aviation machinery Background technique [0002] my country's traditional UAV launch methods can be divided into rocket-assisted launch, hydraulic ejection, air pressure ejection, and ground roll-off. Large-scale UAVs usually take off by ground sliding, while small and medium-sized UAVs usually use catapult take-off, which is extremely expensive and requires extremely high safety measures. Regardless of the ejection take-off method, the UAV must be accelerated to a launch speed for safe take-off by converting the energy stored in the energy storage device into mechanical energy. Traditional hydraulic ejection systems and pneumatic ejection systems are often tens of meters or even tens of meters long, occupy a large area, and are difficult to deploy and withdraw. The thrust line control and adjustment requirements of the rocket booster system are complex and cannot be reused. When the rocket falls off, i...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the traditional UAV launch system, such as high manufacturing cost, large floor space, complicated operation and easy exposure, the present invention proposes a small and medium-sized UAV rotary ejection device

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