A three-way self-adaptive connection device for axial separation of aircraft fairing

Abstract

The invention discloses a three-directional self-adapted connection device for the axial separation of an aircraft fairing. The three-directional self-adapted connection device comprises a connection support, a connection sleeve, a spring pin sleeve and a guide connection shaft, wherein one end of the connection support is fixedly connected with the fairing; the connection sleeve is fixedly connected with the other end of the connection support; the spring pin sleeve comprises a sleeve with a flange, a compressed spring and a limiting pin; the stretching-out end of the limiting pin penetrates through a through hole and stretches in; the guide connection shaft is provided with a connection guide shaft; one end of the connection guide shaft is fixedly connected with an acting rod and the other end of the connection guide shaft is provided with a round platform which is in wedged match with a tapered bayonet; the connection guide shaft is coaxially provided with an opposite ejection spring with one abutment end; and the guide connection shaft enables the conical platform to penetrate through the tapered bayonet to be in gap connection with the spring pin sleeve in space. According to the three-directional self-adapted connection device, a phenomenon that the acting rod is distorted and deforms, even is broken due to loading so that the separation is influenced can be overcome; and furthermore, a window does not need to be formed in the fairing so that the strength and rigidity of the fairing are not influenced.

Description

technical field

[0001] The invention belongs to the technical field of connecting devices, and in particular relates to a connecting device capable of adapting to changes in stiffness between the fairing of an aircraft (such as a rocket) and a separated body before separation, and reliably transmitting axial force during the separation. Background technique

[0002] When an aircraft (such as a launch vehicle) flies in the atmosphere, the fairing is used to protect satellites, missiles and other payloads to prevent the payload from being affected by harmful environments such as aerodynamic force, aerodynamic heat, and acoustic vibration. It is an important part of the aircraft. component. When the aircraft flies to a certain altitude, the fairing must be separated and thrown away in time so that the payload can work normally.

[0003] At present, the separation methods of the fairing include the overall axial separation, the two-lobed rotary separation, the two-lobed horizon...

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