Self-adaptive follow-up traction mechanism for mooring cable of mooring unmanned aerial vehicle

Abstract

The invention provides a self-adaptive follow-up traction mechanism for a mooring cable of a mooring unmanned aerial vehicle, and belongs to the field of mooring unmanned aerial vehicle equipment manufacturing and flying. The mechanism comprises a guide pull ring, a bearing pull ring, four pull ring hinge seats and a sliding buckle connecting assembly, and the circle center of the pull ring coincides with the gravity center of the unmanned aerial vehicle by designing the combination of the pull ring and the hinge seats; the sliding buckle connecting assembly can move along the two pull rings;the connection point of the mooring cable and the mooring unmanned aerial vehicle is located on the sliding buckle connecting assembly; therefore, the mooring cable connecting point can follow up to stay at a corresponding balance point on a semispherical surface formed by the two pull rings by taking the gravity center of the unmanned aerial vehicle as the circle center according to the flight state; no matter how the flight state of the unmanned aerial vehicle changes, the extension line of the mooring cable connected to the connection point always passes through the gravity center of the unmanned aerial vehicle, zero (micro) moment traction of the unmanned aerial vehicle in the flight process is achieved, influence of eccentric moment on the mooring unmanned aerial vehicle is eliminated, power consumption and flight control difficulty of the unmanned aerial vehicle are reduced, and the mounting capacity, wind resistance and working reliability of the unmanned aerial vehicle are improved.

Description

technical field [0001] The invention relates to a pulling mechanism, in particular to a pulling mechanism for a tethered unmanned aerial vehicle, which belongs to the field of tethered unmanned aerial vehicle equipment manufacturing and flight. Background technique [0002] At present, in the field of tethered UAV equipment manufacturing and flight, due to the role of tethered traction, this model is facing an urgent problem, that is, the position of the fixed tethered cable connection point cannot be coincident with the center of gravity of the UAV. , there is an eccentric moment between the two during flight, and more energy will be consumed to balance the moment, and its magnitude varies with the flight status such as flight attitude, wind force, wind direction, mooring cable length (weight), flight altitude, etc., which gives The flight control brings considerable difficulty, which often makes the UAV out of control and even leads to a crash, which seriously restricts th...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of tethered UAV equipment manufacturing and flight, due to the role of tethered traction, this model is facing an urgent problem, that is, the position of the fixed tethered cable connection point cannot be coincident with the center of gravity of the UAV. , there is an eccentric moment between the two during flight, and more energy will be consumed to balance the moment, and its magnitude varies with the flight status such as flight attitude, wind force, wind direction, mooring cable length (weight), flight altitude, etc., which gives The flight control brings considerable difficulty, which often makes the UAV out of control and even leads to a crash, which seriously restricts the design mounting capacity, lift-off height and air stay time of the tethered UAV; and under the long-term action of this moment It will also cause damage to the relevant parts of the airframe, seriously affecting the service life of the drone

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