Adjustable skid undercarriage for unmanned helicopter

Abstract

The invention discloses an adjustable skid undercarriage for an unmanned helicopter. The adjustable skid undercarriage comprises a high-damping telescopic actuating rod, a bidirectional equal-rigidity tension-compression type buffer, a split bow beam and a variable-length skid; wherein the top ends of the two high-damping telescopic actuating rods in the same group are hinged to the unmanned helicopter body, and the bottom ends of the two high-damping telescopic actuating rods in the same group are hinged to the split bow beams on the two sides respectively. The two ends of the two-way equal-rigidity tension-compression type buffer are hinged between the split type bow beams on the two sides; the two-way equal-rigidity tension-compression type buffer and the two high-damping telescopic actuating rods form a stable triangular mechanism; the split type bow beams are hinged to the unmanned helicopter body around the longitudinal axis of the unmanned helicopter, and the split type arch beam and the variable-length skid are connected through a connecting spherical hinge. The arched beam can be rotationally folded and unfolded along the longitudinal horizontal line of the helicopter, passive absorption impact kinetic energy of the undercarriage is reduced, the landing angle of the undercarriage is freely adjusted, so that the adaptability of the undercarriage and task equipment such as a photoelectric pod is improved.

Description

Technical field [0001] The present invention relates to a helicopter landing gear technical field, particularly to a unmanned helicopter with adjustable skid landing gear. Background technique [0002] The general form of the skid gear unmanned helicopter placed below the main body, the main role is to support the unmanned helicopter taking off, landing and parking ground, in particular to the part of the landing generated during landing or all of the impact energy. [0003] Flying in the air, generally skid gear unmanned helicopter body below a fixed attitude relative to the unmanned helicopter with movement therewith as well as an external optical pod, a load detecting radar and radio equipment and other tasks, when the task when installing equipment to its location surroundings have higher requirements, the landing gear would seriously affect the mission equipment ability to work and the results, such as external skid gear will affect the photoelectric field reconnaissance pod...

AI Technical Summary

Problems solved by technology

[0003] When flying in the air, the skid landing gear generally moves with the unmanned helicopter in a relatively fixed posture under the body of the unmanned helicopter. Along with it, there are mission equipment such as photoelectric pods, radar and radio detection loads. When the equipment has high requirements on the surrounding environment of its installation location, the landing gear will seriously affect the working ability and use effect of the mission equipment. The detection quality of radio detection equipment to surrounding electrical signals

[0004] During the landing process of the unmanned helicopter, due to terrain or other external reasons, it often occurs that the unmanned helicopter and the landing point have a relative angle. The landing gear cannot be adjusted independently, causing the ship surface to have a relative angle to the unmanned helicopter in the roll and pitch directions, which greatly increases the difficulty of landing the unmanned helicopter

In addition, during the landing process of the unmanned helicopter, the conventional skid landing gear can reduce the overload on the fuselage of the unmanned helicopter by adding a buffer or deforming its own landing gear. The reaction force of the human helicopter body structure, but the landing gear itself still absorbs a considerable part of the impact kinetic energy, which affects the service life of the landing gear

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