Cantilever force bearing device for combined spray pipe

Abstract

The invention provides a cantilever force bearing device for a combined spray pipe. The cantilever force bearing device comprises a middle adjusting plate left force bearing frame, a middle adjustingplate right force bearing frame, a first middle adjusting plate force transmission frame, a second middle adjusting plate force transmission frame and a third middle adjusting plate force transmissionframe which are conical in appearance and are fixedly connected with one another, and after fixed connection, a bearing frame base body is formed. Double-lug seats are correspondingly arranged at theconical bottom of the middle adjusting plate left force bearing frame and the conical bottom of the middle adjusting plate right force bearing frame, the double-lug seats are used for being fixedly connected with a cartridge receiver, and a single-lug seat is arranged at the conical bottom of the third middle adjusting plate force transmission frame and used for being fixedly connected with the cartridge receiver. A box type frame structure is jointly formed by block type force bearing and transmitting members, stepless adjustment can be carried out on a spray pipe flow channel through a hydraulic executing mechanism, aerodynamic thermal loads in all limit states are borne and transmitted, and the using requirement of an engine full envelope is met.

Description

technical field [0001] The present disclosure relates to the technical field of aero-engine nozzle load-bearing structure design, in particular to a cantilever load-bearing device for a combined nozzle. Background technique [0002] The combined turbo-ramjet engine is an ideal power source for future reusable near-space high-speed combat aircraft. Among them, the working mode conversion between the turbine and the ramjet is an important and difficult technology in the development of the turboramjet combination engine. In order to ensure that the nozzle thrust coefficient and the total pressure recovery coefficient meet the requirements within the full envelope, the future high-altitude high Mach number turboramjet combination engine It is necessary to adopt an adjustable middle adjustment plate structure. The outer profile of the middle adjustment plate is tapered. Due to space constraints, the cam adjustment structure can only be arranged at the front end of the frame, and...

AI Technical Summary

Problems solved by technology

[0004] In view of this, an embodiment of the present disclosure provides a cantilever load-bearing device for a combined nozzle, which is specifically a cantilever load-bearing frame for an intermediate adjustment plate used for variable-state adjustment of a parallel combined nozzle of a turboramjet combined engine Structure, by optimizing the force transmission path to solve the problem of insufficient strength and rigidity of the intermediate adjustment plate, to meet the modal conversion function requirements of the turbo-ramjet combined engine

Images