Cabin door opening device for hypersonic velocity wind tunnel experiment cabin

Abstract

The invention discloses a cabin door opening device for a hypersonic velocity wind tunnel experiment cabin, which is suitable for opening or closing a cabin door of a wind tunnel experiment cabin. The cabin door is a circular arc-shaped turnover cover, of which the circle center of the arc is positioned on the axial center line of a cabin body of the experiment cabin when the wind tunnel experiment cabin is in a closed state; the cabin door opening device for the hypersonic velocity wind tunnel experiment cabin comprises an elastic push-pull rod; one end of the elastic push-pull rod is connected with the circular arc-shaped turnover cover by a hinge; the other end of the elastic push-pull rod is connected with a rotating arm by a hinge; and the rotating arm is connected with a power driving mechanism by a rotating arm shaft. According to the invention, the elastic push-pull rod is respectively connected with the circular arc-shaped turnover cover and the rotating arm connected with the power driving mechanism, so that an actuating mechanism is provided for opening and closing the arc turnover cover; and the arc turnover cover adopted in the invention provides an access with a wide opening angle and a large space for the experiment cabin, so that a large-scaled experiment module conveniently gets in and out of the experiment cabin, experiment efficiency of a wind tunnel experiment of the large-scaled experiment module is improved and labor intensity in the process of the wind tunnel experiment is reduced.

Description

technical field [0001] The invention relates to the field of wind tunnel experiments, in particular to a hypersonic wind tunnel experiment cabin door opening device applied to wind tunnel experiments. Background technique [0002] The wind tunnel experiment is based on the relative principle of motion. The experimental model or object is fixed in the artificial environment on the ground, and the airflow is artificially created to simulate various flight states in the air and obtain experimental data. Wind tunnel experiments are widely used in model experiments of missiles, hypersonic vehicles, and aerospace aircraft, and are very important ground test equipment in the aerospace field. Hypersonic wind tunnels generally include heaters, nozzles, experimental cabins, diffusers, ejectors (or vacuum tanks), air source systems, control systems, etc. The experimental cabin is the place for the experimental model and an important part of the wind tunnel. , to meet the needs of diff...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a hatch opening device for a hypersonic wind tunnel experiment cabin, which can open and close the hatch of the wind tunnel experiment cabin in the wind tunnel experiment, so as to solve the problem that the opening space of the wind tunnel experiment cabin is limited and the experiment efficiency is low and operationally intensive technical issues

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