Movable unmanned aerial vehicle empennage

Abstract

The invention provides a movable unmanned aerial vehicle empennage. The movable unmanned aerial vehicle empennage comprises an empennage body 1, a tail force arm 2, a sliding block 3, a sliding rail 4, a driving gear 5, a rack 6, a first position sensor 7, a second position sensor 8 and a rolling wheel 9. A sliding rail 4 is arranged in the middle of the fuselage in the axis direction of the aircraft, a sliding block 3 is fixedly arranged at the front end of the tail force arm 2, a rack 6 is installed on the upper surface of the tail force arm 2, and an empennage driving gear 5 is arranged atthe tail of the fuselage. The sliding block 3 slides on the sliding rail 4, and the rack 6 is connected with the driving gear 5 in a meshed mode. A first position sensor 7 is arranged on the front side of the sliding rail 4, and a second position sensor 8 is arranged on the rear side of the sliding rail 4; when the sliding block 3 drives and drives the tail force arm 2 and the empennage body 1 tomove to the preset forward maximum position, the tail force arm 2 and the empennage body 1 stop moving forwards by touching the first position sensor 7; and the two rollers 9 are respectively arrangedon two sides of the tail force arm 2 on the rear side of the body.

Description

technical field [0001] The invention belongs to the technical field of variant aircraft design, and relates to a movable UAV tail. Background technique [0002] Variant drones refer to unmanned aerial vehicles that change the overall configuration through materials, structures and mechanisms, advanced flow and flight control to adapt to different mission requirements and obtain the best performance in different flight states. . A common variant UAV is a variant aircraft with retractable wings. It has a great ability to change the aspect ratio of the aircraft, which has a significant impact on the endurance of the aircraft. Through the expansion and contraction of the wings, a wide range of changes in the wing area can be achieved. Meet the needs of different flight states and tasks. However, in the current variant aircraft with retractable wings, the position of the center of gravity and the aerodynamic focus of the aircraft will change after the wings are expanded or retr...

AI Technical Summary

Problems solved by technology

However, in the current variant aircraft with retractable wings, when the wings are expanded or retracted, the position of the center of gravity and the aerodynamic focus of the aircraft will change accordingly, and the stability and maneuverability of the aircraft will deteriorate.

In addition, the deformation drive mostly chooses hydraulic drive, screw screw drive and other forms, the mechanism is complex, and the structure is heavy.

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