Reusable high-temperature speed reducing plate mechanism

Abstract

The invention provides a reusable high-temperature speed reduction plate mechanism which is used for assisting in speed reduction after a high-speed aircraft lands. The reusable high-temperature speedreduction plate mechanism comprises a thin skin structure, a framework structure, an actuator cylinder and a fish scale type telescopic heat-proof baffle, the thin skin structure is made of a high-temperature-resistant titanium alloy material, the framework structure is designed by adopting gradient bearing combined reinforcing ribs, and a self-lubricating metal matrix composite sleeve is arranged at the connecting position of the framework structure and an aircraft; the fish scale type telescopic heat-proof baffle is arranged at the position of a machine body opening frame where the actuating cylinder is installed. The requirements for temperature resistance, strength, rigidity and weight reduction are comprehensively considered, the requirement for repeated use is also considered, and the application requirement of a high-speed aircraft can be met.

Description

technical field [0001] The invention belongs to the technical field of speed brakes, and in particular relates to a high-temperature speed brake mechanism for repeated use. Background technique [0002] Reusable high-speed aircraft usually use airbrakes to assist the aircraft to decelerate when returning. Unlike conventional subsonic aircraft, high-speed aircraft have to go through a high-temperature process. When the airbrake is working, the body may still be at a relatively high temperature. The moving parts under the coupling state of force and thermal load are also subject to the constraints of the lightweight index of the body, so the design is difficult. Therefore, there is an urgent need for a reusable high-temperature-resistant speedbrake structure. Contents of the invention [0003] The object of the present invention is to provide a reusable high-temperature speed brake mechanism to solve the problem of deceleration of high-speed aircraft during landing after exp...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a reusable high-temperature speed brake mechanism to solve the problem of deceleration of high-speed aircraft during landing after experiencing high temperature process. The speed brake mechanism has the characteristics of light weight, high temperature resistance and reusability, and The dynamic heat-sealing structure can effectively solve the heat-sealing problem during the movement of the speedbrake and meet the needs of high-speed aircraft

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