Variable-torque cable winding and unwinding device for mooring unmanned aerial vehicle and cable winding and unwinding method thereof

Abstract

The invention provides a variable-torque cable winding and unwinding device for a mooring unmanned aerial vehicle and a cable winding and unwinding method thereof. The cable winding and unwinding device comprises a driving mechanism and a cable winding mechanism; the driving mechanism comprises a motor, a magnetic powder clutch and a driver, wherein the motor and the magnetic powder clutch are used for driving and controlling the rotation of a cable winding disc, and the driver is electrically connected to the magnetic powder clutch so as to adjust the torque of the magnetic powder clutch by controlling the current changes; and the cable winding mechanism comprises the cable winding disc, a reciprocating connecting rod, a sliding block and a creel stand, wherein the cable winding disc is used for allowing cables to be wound around the cable winding disc, the cable winding disc and the driving mechanism are coaxially arranged and are connected to the output end of the driving mechanism,the reciprocating connecting rod is arranged in parallel with the cable winding disc and is connected to the output end of the driving mechanism, a threaded groove is formed in the reciprocating connecting rod, the sliding block is arranged in the threaded groove of the reciprocating connecting rod and can move along the threaded groove, the cable arranging frame is arranged on the reciprocatingconnecting rod and can do reciprocating motion along the reciprocating connecting rod under the action of the sliding block, and the cables penetrate through the creel stand to be connected to a mainbody of the mooring unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the technical field of tethered unmanned aerial vehicles. In particular, the present invention relates to a variable torque cable retracting and retracting device for mooring drones and a cable retracting and retracting method thereof, and particularly relates to a method for regularly winding cables using the cooperation of reciprocating connecting rods and sliders and release devices and methods of using the same. Background technique [0002] Tethered drones are mainly used for long-term uninterrupted aerial surveillance and emergency communications. As the carrier of optical fiber signal transmission and current conduction, the cable cannot bear large pulling force and torque. The existing cable retracting device has a simple structure, which often leads to messy winding of the cable during the cable retracting process. For example, during the rotation of the winding reel, the shape of the single layer of the cable win...

AI Technical Summary

Problems solved by technology

Such irregularly wound cables can easily generate uncontrollable (for example, large or small) tension and / or torque, affecting the flight effect of tethered drones

In particular, when the tension or torque generated by the cable is too large, it may damage or even break the optical fiber or electrical conductor inside the cable, and there is a danger of explosion

Or, when the tension or torque generated by the cable is small, it is impossible to accurately monitor and navigate the flight of the tethered drone. It may happen that the tethered drone has landed and the cable continues to coil, which may also damage or even Pull off the optical fiber or electrical conductor inside the cable, burying the danger of bombing

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