Retractable main landing frame for small aircrafts

Abstract

The invention relates to the field of machinery, and provides a retractable main landing frame for small aircrafts. A joint at the upper end of a retraction actuating cylinder is articulated on a support of a body of an aircraft through a bolt, and the lower end of the retraction actuating cylinder is provided with a joint with a knuckle bearing; the joint with the knuckle bearing is installed on a shaft of a buffer strut; two ends of the upper part of the buffer strut are provided with concentric hollow shafts connected with the body of the aircraft through connection flange discs; a cylindrical inner cylinder at the lower end of the buffer strut is matched with a hole of a half wheel fork; a dual-fork ear at the upper end of an upper torsion-prevention arm is matched with a dual-ear sheet at the middle part of the buffer strut; a dual-fork ear at the lower end of a lower torsion-prevention arm is matched with a dual-ear sheet at the upper part of the half wheel fork; a single-fork ear at the lower end of the upper torsion-prevention arm is matched with a dual-fork ear at the upper end of the lower torsion-prevention arm; one end of an wheel shaft of the aircraft is installed in the hole in the lower end of the half wheel fork; braking aircraft wheels and tires are installed at the other end of the aircraft wheel shaft. The retractable main landing frame for the small aircrafts plays a very good buffering effect in the aircraft landing and sliding processes, and is suitable for the small aircrafts.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a retractable main landing gear for small aircraft. Background technique [0002] Although the landing gear of modern aircraft is various, the landing gear that is suitable for small aircraft is rare. With the rapid development of small aircraft, especially unmanned aerial vehicles, the demand for a landing gear suitable for small aircraft and with complete functions is particularly urgent. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a retractable main landing gear of a small aircraft, which can complete functions such as take-off, landing, taxiing, parking and braking of the aircraft, and play a good role in the process of taking off, landing and taxiing of the aircraft. Buffer function, and can make the aircraft take off and land at the airstrip. [0004] The technical solution of the present invention: a retractable ma...

AI Technical Summary

Problems solved by technology

[0002] Although there are many types of landing gear for modern aircraft, there are not many landing gears suitable for small aircraft

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