Lower connection structure of landing gear buffer

Abstract

The invention belongs to the technical field of landing gear structure designs, and particularly relates to a lower connection structure of a landing gear buffer. The buffer comprises: an outer barreland a piston rod; one end of the piston rod is disposed inside the outer barrel; and the lower connection structure comprises a rotating sleeve and a bearing nut; the rotating sleeve is arranged at the periphery of the outer barrel in a sleeving manner; an ejection connection structure is arranged outside the rotating sleeve; the ejection connection structure is connected with an ejection rod; one end of the bearing nut is arranged between the outer barrel and the rotating sleeve and is called as a bearing nut upper end; the other end of the bearing nut is called a bearing nut lower end; theinner wall of the bearing nut upper end and the outer wall of the outer barrel are fitted and connected through sawtooth-shaped threads; the outer wall of the bearing nut upper end and the inner wallof the rotating sleeve are fitted and connected through a bearing slot formed along a circumferential direction and a bearing protrusion disposed along the circumferential direction; the rotating sleeve can rotate relative to the bearing nut.

Description

technical field [0001] The application belongs to the technical field of landing gear structure design, and in particular relates to a lower connection structure of a landing gear buffer. Background technique [0002] Aircraft landing gear is designed to ensure the safety of the two stages of takeoff and landing, and its core component is the buffer, which is used to consume the sliding load of the aircraft during the two stages of takeoff and landing. The lower connection structure is designed on the landing gear buffer to transfer the loads such as wheels and tires to the landing gear and aircraft structure. [0003] At present, the load-bearing nut of the lower connection structure of the front landing gear buffer of a catapult take-off carrier-based aircraft bears an ejection load of more than ten tons during the catapult take-off. In the traditional lower connection structure, the load-bearing nut and the landing gear buffer adopt ordinary or MJ tooth type. The threade...

AI Technical Summary

Problems solved by technology

[0003] At present, the load-bearing nut of the lower connection structure of the front landing gear buffer of a catapult take-off carrier-based aircraft bears an ejection load of more than ten tons during the catapult take-off. In the traditional lower connection structure, the load-bearing nut and the landing gear buffer adopt ordinary or MJ tooth type. The threaded connection cannot meet the requirements of transmitting high loads

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