Unmanned helicopter landing gear

Abstract

The invention belongs to the field of unmanned helicopters, and discloses an unmanned helicopter landing gear. The landing gear comprises a first bow beam, a second bow beam, a first skid, a second skid, and connecting devices which are arranged on the first bow beam and the second bow beam respectively and are used for connecting a rack, wherein each of the first skid and the second skid consists of a horizontal section in the middle and U-shaped transition sections at two ends; each of the first bow beam and the second bow beam consists of a straight line section at the upper part and arc-shaped sections at two ends; and the first skid and the second skid are symmetrically arranged between two ends of the first bow beam and the second bow beam respectively, and form included angles of 2-5 degrees with the vertical direction. The landing gear provided by the invention has extremely good impact resistance, and the connecting devices of the landing gear can ensure safe takeoff and landing of a helicopter; and the overall structure of the unmanned helicopter landing gear is simple, lightweight and flexible, the body weight of an unmanned helicopter is reduced, and the landing gear is easy to produce.

Description

technical field [0001] The invention relates to the field of unmanned helicopter equipment, in particular to an unmanned helicopter landing gear. Background technique [0002] The unmanned helicopter takes off and lands in a small space, can take off and land vertically, can hover in the air, and can fly flexibly in any direction. Therefore, it can not only replace some aerial operations that manned helicopters cannot perform, but also complete certain tasks that fixed-wing unmanned aircraft cannot complete. Unmanned helicopters have developed rapidly due to their own remarkable characteristics. With the continuous application and development of computer technology, network technology, and photoelectric technology on unmanned helicopters, unmanned helicopters will play more and more roles in various fields due to their superior performance. important role. [0003] The landing gear structure of an unmanned helicopter is similar to a sled. The main body is two skids arrange...

AI Technical Summary

Problems solved by technology

The landing gear of unmanned helicopters in the prior art is composed of metal pipes, which rely on the elastic deformation of structural pipe beams to slow down the landing impact energy when landing, and the shock absorption capacity is limited; the other type is installed with shock absorbing struts to slow down the landing impact. Energy, bulky structure, increased airframe weight

[0004] At present, the connection device between the arched beam of the unmanned helicopter landing gear and the fuselage structure generally adopts rigid joints and is connected by bolts. This connection form makes the landing gear and the fuselage an integral body. Or when taking off, because the landing gear cannot be adjusted, the impact load will be concentrated in a certain area, resulting in structural damage in the area, or the risk of the unmanned helicopter tilting or even rolling over as a whole, which will cause great trouble to the flight safety of the unmanned helicopter

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