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A tethered unmanned aerial vehicle retractable cable device and its control system

An unmanned aerial vehicle and mooring technology, which is applied in the field of retracting and unwinding cable systems, can solve the problems of inability to meet the retractable and unwinding characteristics of unmanned aerial vehicles, large structural size, and large cable retracting and unwinding force.

Active Publication Date: 2019-04-12
HARBIN ENG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional retractable cable devices are mostly used for underwater robots, search and rescue robots, etc. Compared with tethered UAV retractable cable devices, these special retractable devices have a large retractable cable force and large structural size, and the design of the guide mechanism cannot meet the needs of unmanned aerial vehicles. Requirements for man-machine cable retractable features

Method used

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  • A tethered unmanned aerial vehicle retractable cable device and its control system
  • A tethered unmanned aerial vehicle retractable cable device and its control system
  • A tethered unmanned aerial vehicle retractable cable device and its control system

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] combine Figure 1 to Figure 8 , combined with figure 2 , 3 , 4. The present invention includes a bracket, a cable discharge device, a cable storage barrel, a driving unit, a guiding mechanism, a force measuring mechanism, and the like. The driving unit is composed of a torque motor, a synchronous belt, etc., and the cable discharge device is composed of a two-way screw, a slider (screw pair) and a guide rail. The guide rail and the lead screw are arranged in parallel to limit the slider (screw pair) to follow the lead screw to rotate and play a guiding role at the same time. The two sets of free wheels on the slider (screw pair) effectively limit the cable outlet position during the cable arrangement process. , and adapted to the small-range back and forth swing of the optical cable caused by the change of the shaft diamete...

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Abstract

The invention provides a cable winding and unwinding device of a mooring unmanned aerial vehicle and a control system. A driving unit comprises a torque motor and a synchronous belt; a cable arrangement device consists of a two-way lead screw, a spiral pair and a guide rail; the torque motor directly drives a cable storage cylinder to wind cables, and drives a reciprocating lead screw to rotate by a synchronous belt transmission mechanism to realize reciprocating wire arrangement actions of the spiral pair; and optical cables penetrate through three sets of fixed free wheels and force sensors in sequence by a wire arrangement device, and are finally connected to the unmanned aerial vehicle through a guide mechanism. The torque motor directly drives the cable storage cylinder, so that the power consumption caused by such factors as mechanical friction in the transmission process is reduced; compared with single guide wheel in a traditional cable winding and unwinding device on the aspect of guiding and fixing the optical cables, three sets of free wheels are adopted; two sets of free wheels are mounted on the spiral pair to horizontally move along with rotation of the lead screw in an axis perpendicular manner; and the other set of free wheels are mounted on the bracket to guarantee invariable direction of feeding the optical cables into the force sensor so as to guarantee the measurement accuracy.

Description

technical field [0001] The invention relates to a cable retracting system, in particular to a cable retracting device and a control system for a tethered drone. Background technique [0002] With the development and promotion of UAV technology, the problem of its battery life has become more and more prominent. In order to solve this problem, people choose to combine traditional UAV technology with tethered platform technology to form a tethered UAV. The retractable cable device is the core of the tethered UAV technology, and the retractable effect of the cable connected to the UAV will directly affect the performance of the tethered UAV. [0003] Traditional retractable cable devices are mostly used for underwater robots, search and rescue robots, etc. Compared with tethered UAV retractable cable devices, these special retractable devices have a large retractable cable force and large structural size, and the design of the guide mechanism cannot meet the needs of unmanned ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H75/38B65H75/44
CPCB65H75/38B65H75/4405
Inventor 张立勋高源魏丹陆磊刘平孟婧佳薛峰李伟民
Owner HARBIN ENG UNIV
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