Ground auxiliary bracket for airplane forced landing

Abstract

The invention relates to the technical field of airplane emergency forced landing, and discloses a ground auxiliary bracket for airplane forced landing. The ground auxiliary bracket comprises a damping wheel; the damping wheel is mounted on a square bearing through a rotating shaft; a damping spring is further arranged at the top of the square bearing, so that when airplane forced landing rear wheels land on the bracket firstly, the rear end of a bottom plate can be effectively damped; buffer springs are further arranged at the bottom of the bracket to damp the whole bracket, and the damping effect is better; a front limiting piece is used for limiting the position of the top end of the airplane; a rear limiting piece can extend out of the bottom plate and is used for limiting the positionof the tail of the airplane; clamping plates can be driven by a first motor to get close to each other to clamp an airplane body of the airplane, is better in fixing effect, and can prevent the airplane from being separated from the bracket; the front limiting piece is used for limiting the position of the airplane and increasing the resistance of the air to enable the bottom plate to stop sliding gradually; and a parachute pack is further arranged at the tail end of the bottom plate, the bottom plate can be further decelerated when the parachute pack is opened, and the deceleration effect isbetter.

Description

technical field [0001] The invention relates to the technical field of aircraft emergency landing, in particular to a ground auxiliary bracket for aircraft emergency landing. Background technique [0002] Aircraft landing gear is the device that must be used when the aircraft takes off and lands. When the aircraft is flying, the landing gear is retracted into the belly of the aircraft to reduce flight resistance. Before the aircraft lands, the landing gear needs to be lowered to buffer the huge impact force of the ground on the aircraft and achieve a safe landing of the aircraft. [0003] However, sometimes the landing gear fails due to some special reasons and cannot be lowered normally. When the landing gear fails and cannot be put down, the fuselage of the aircraft will directly contact the ground. The aircraft cannot withstand the huge impact and friction brought by the ground, and it is very easy to be damaged. In severe cases, major safety accidents such as aircraft c...

AI Technical Summary

Problems solved by technology

But, in actual application, we find that it still has certain deficiencies. For example, when the aircraft makes an emergency landing, due to the lack of sufficient shock-absorbing measures on the bracket of the above-mentioned patent, the aircraft is very easy to crash the bracket. After the forced landing, due to the lack of protective measures in the bracket of the above-mentioned patent, the aircraft is easy to slip from the bracket. In addition, the deceleration and steering systems of the bracket in the above-mentioned patent are relatively complicated, which is prone to failure in actual application and has poor practicability

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