A rotorcraft twin beam airframe

Abstract

The utility model belongs to the field of rotorcraft frame, specifically speaking is a kind of rotorcraft double-beam frame, including main body, the one side of main body is provided with adaptive buffer device;Adaptive buffer device includes fixed plate, the top of fixed plate is hinged with first movable arm, the other side of first movable arm is hinged to the bottom of connecting platform, and the bottom of connecting platform is provided with movable slot on one side, and movable roller is slidably installed in movable slot, movable roller is fixedly installed in one side of second movable arm, and the other side of second movable arm is slidably installed with two connecting blocks;First movable arm and second movable arm form lever buffer mechanism by hinging and sliding structure, the sliding cooperation of movable roller in movable slot and the elastic deformation of air spring can convert the impact vibration during taking off and landing into the elastic potential energy of mechanism, realize the rapid attenuation of high-frequency vibration, solve the problem that the structure fatigue is caused by the vibration impact of traditional rigid frame, improve the fatigue life of frame.

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