An integral sliding structure of the exhaust pipe of the fairing firewall

Abstract

The invention provides an integral sliding structure of a fairing, firewalls and exhaust pipes and belongs to the field of helicopter structural design. The integral sliding structure comprises a fixed component and a sliding component capable of sliding on the fixed component. The fixed component comprises the fixed firewall, sliding rails and a plug seat, wherein the fixed firewall extends in the direction of the sliding component to form a sealing baffle. The sliding component comprises a sliding cover, the exhaust pipes, pulley components, the sliding firewall, a plug and a sealing piece,the sealing piece is arranged on the sliding firewall and used for being connected with the sealing baffle to isolate an engine compartment, the pulley components are matched with the sliding rails and used for making the fairing slide, and the plug seat is matched with the plug and used for sliding guidance. By the adoption of the integral sliding structure, the maintenance requirement of a powersystem in the engine compartment is met to the maximum extent, a reasonable sliding structure interface is found, so that the problem that the fairing provided with the exhaust pipes cannot slide issolved, and meanwhile the problems existing in installation of the exhaust pipes and fireproof sealing of the engine compartment due to integral sliding are solved.

Description

technical field [0001] The invention relates to the field of helicopter structure design, in particular to an integral sliding structure of a fairing firewall exhaust pipe. Background technique [0002] The fairing of the helicopter power cabin is used to maintain the aerodynamic shape, provide the installation interface for the engine intake and exhaust system, and protect the main reducer, engine, hydraulic pressure, control, fire extinguishing and other systems on the power platform. These systems have a high maintenance frequency on the helicopter . Therefore, the design focus of the power compartment fairing should be to maximize the ease of maintenance of these systems. [0003] The slidable power cabin fairing can significantly improve the structural openness of the helicopter power platform and the accessibility of internal system maintenance. To realize the slidable design of the fairing, it is necessary to find a reasonable and feasible interface between the fixed...

AI Technical Summary

Problems solved by technology

[0003] The slidable power cabin fairing can significantly improve the structural openness of the helicopter power platform and the accessibility of internal system maintenance. To realize the slidable design of the fairing, it is necessary to find a reasonable and feasible interface between the fixed part and the sliding part. The installation of the fairing will highlight the shape of the fairing and restrict the design of the sliding fairing. Previously, the fairing for the installation of the exhaust pipe was designed as a detachable fairing with screw connections, which increased the maintenance time of the internal system and affected the maintain accessibility

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