Strut type landing gear

Abstract

The invention discloses a strut type landing gear. The landing gear comprises a buffer strut, jackstay (5), upper torsion arms (2), lower torsion arms (4) and an airplane wheel (3), wherein the struttype landing gear is connected with a fuselage through two lugs at one end of an upper portion joint bearing and the jackstay (5) of an outer cylinder (1) of the buffer strut, the two lugs at the other end of the jackstay (5) are connected with the upper torsion arms (2), the upper torsion arms (2) are connected with the outer cylinder (1), the lower torsion arms (4) are connected with a piston rod (6) of the buffer strut, the connecting positions of the upper torsion arms (2) and the outer cylinder (1) are located on one side, close to the airplane wheel (3), of the buffer strut, the connecting positions of the lower torsion arms (4) and the piston rod (6) are located on the other side of the buffer strut, the upper torsion arms (2) are connected with the lower torsion arms (4), and the airplane wheel (3) is fixed on an axle of the end of the piston rod. According to the strut type landing gear, through the layouts of the buffer strut, the jackstay and the torsion arm, the problem ofthe lateral wheel distance of the strut type landing gear can be solved.

Description

technical field [0001] The invention belongs to the field of helicopter structure design, in particular to a prop type landing gear. Background technique [0002] The landing gear is the landing device of the aircraft, which is used to support the carrier aircraft, absorb landing energy, and buffer landing and rolling impact loads. To meet ground stability, the landing gear is usually skived out to increase the lateral track. There are two common configurations of landing gear, one is the outboard strut landing gear, and the other is the outboard rocker undercarriage. The common outboard strut landing gear such as image 3 Shown, it is made up of buffer strut, side strut 5, upper torsion arm 12, lower torsion arm 4 and machine wheel 3 etc. The fuselage is fixedly connected, and the other end of the side strut 5 is fixedly connected with the outer cylinder 1. During the landing process, the wheel drives the piston rod 6 to move axially along the outer cylinder 1. Dotted li...

AI Technical Summary

Problems solved by technology

Outboard rocker landing gear, the lateral track remains unchanged during landing, but the structural weight is more expensive

Images