Helicopter undercarriage with protection function

Abstract

The invention discloses a helicopter undercarriage with the protection function; the undercarriage comprises a skid and an arch-shaped beam, the arch-shaped beam is connected to the top wall of the skid, a first supporting rod and a second supporting rod are connected to the inner wall of the arch-shaped beam, and a first supporting plate is rotatably connected to the outer wall of the first supporting rod; a first shock absorber body is connected to the top wall of the first supporting plate, a sleeve is connected to the bottom wall of the first supporting plate, a buffer shock absorption mechanism is arranged in the sleeve, the output end of the buffer shock absorption mechanism penetrates through the sleeve and is connected with a rotating shaft, a machine wheel is connected to the outer wall of the rotating shaft, and a connecting base is connected to the top wall of the arched beam. A supporting beam is connected to the inner wall of the connecting base, and a second buffer damping mechanism is connected to the top wall of the supporting beam; according to the helicopter undercarriage, a good buffering and damping effect can be effectively achieved on the helicopter body during landing, the situation that the helicopter is damaged due to the fact that the helicopter is subjected to high impact force during landing is avoided, and then a good protection effect is effectively achieved on the helicopter body.

Description

technical field [0001] The invention relates to the technical field of helicopter components, in particular to a helicopter landing gear with a protective function. Background technique [0002] Helicopters, especially small and medium-sized helicopters, can be equipped with skid landing gear, which usually includes two longitudinal skid tubes for contacting the ground and two transverse tubes connecting the skid tubes to the body of the helicopter ;Typically, skid landing gear is designed considering the following factors: energy absorption during a hard landing, stress levels in a normal landing, and appropriate stiffness to avoid severe ground resonance modes. [0003] After retrieval, the utility model patent patent CN203111500U discloses a helicopter skid landing gear with a buffer. The helicopter skid landing gear with a buffer includes a skid, a strut, a connecting clamp and a wear plate , the strut is connected between the skid and the fuselage to play a supporting ...

AI Technical Summary

Problems solved by technology

[0004] Although this utility model can play a certain supporting and buffering effect on the helicopter, the structure is relatively simple, and only the buffer is used for buffering and shock absorption, and the effect is relatively low. Therefore, the buffering effect of the utility model is not obvious, so it is difficult to act on the helicopter To a good protective effect, so a helicopter landing gear with protective function is particularly important

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