Skid type landing device with auxiliary pulleys, capable of correcting deviation and suitable for narrow retraction space

Abstract

The invention discloses a retractable skid type landing device with auxiliary wheels and suitable for a narrow space. The landing device is divided into a skid retracting and releasing module and an auxiliary wheel retracting and releasing module. The skid retracting and releasing module comprises a skid retracting and releasing actuating cylinder, a main buffer, a first side supporting rod, a second side supporting rod, an upper torsion arm, a lower torsion arm, a skid and a pitching buffer. The auxiliary wheel retracting and releasing module comprises first to eighth auxiliary wheels, firstto fourth connecting rods, first to second connecting shafts, first to second bearings, first to second connecting shaft lifting actuating cylinders, first to fourth steel ropes, first to fourth fixedpulleys, first to fourth auxiliary wheel retracting and releasing actuating cylinders and a bracket. A plurality of small auxiliary wheels are added to improve the landing device of the deviation rectifying lateral force, so that the ground sliding deviation rectifying capability of an aircraft is improved; and compared with an original skid landing device, the device of the invention has the following advantage: the occupied space of a vehicle body is not greatly increased.

Description

technical field [0001] The invention relates to the technical field of aircraft taxiing and landing, in particular to a deflection-correctable skid-type landing device with auxiliary wheels, which is suitable for narrow retractable spaces. Background technique [0002] Landing gear is mainly divided into wheeled landing gear and skid landing gear. Traditional aircraft mostly use wheeled landing gear, which is stable and easy to roll when landing. The tires can provide large lateral force and have good stability in the rolling direction. However, the wheeled landing gear has problems such as complex structure, heavy weight, and large volume, and has relatively high requirements on the road conditions of the landing road. The skid landing gear has simple structure, light weight, low cost, reliable performance, and is not easy to be damaged. Due to the limitations of the device's retractable space and structural weight, some hypersonic models with large wheels cannot be used. ...

AI Technical Summary

Problems solved by technology

However, during the ground run of the aircraft, the traditional skid-type landing gear can provide very little lateral force. For a skid-type aircraft with a certain landing horizontal initial velocity, once it is subjected to crosswind, initial yaw angle, runway The interference of equal and asymmetric factors, because the ground lateral force used for deflection correction is insufficient, the deflection correction effect of the skid is poor, and the aircraft is easy to rush out of the runway, causing serious accidents

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