Door mechanism of side open aircraft weapon bay

Abstract

The invention relates to a door mechanism of a side open aircraft weapon bay. The door mechanism comprises a door (1), a transverse beam (2), pull rods (4) and a rotating actuator (3), wherein the door (1), the transverse beam (2) and the pull rods (4) form a four-linkage mechanism; the transverse beam (2) is driven by the rotating actuator (3); the joint of the transverse beam (2) and the door (1) is positioned in the middle of the width of the door (1); the joints of the pull rods (4) and the door (1) are positioned on the inner side of the width of the door (1); the joint of the pull rods (4) on an aircraft body is positioned in the middle of the width of the weapon bay; two pull rods (4) are positioned at the front and back ends of the door. By adopting the door mechanism, the door canbe closer to the surface of an aircraft in an open state, thereby reducing or even eliminating the increase of the side area of the middle part of the aircraft, avoiding increase of the areas of vertical tails and ventral fins too much for ensuring the course stability of the aircraft, and reducing the cost in terms of weight and resistance on the aircraft.

Description

technical field [0001] The invention relates to an aircraft weapon cabin door mechanism, in particular to a side-opening aircraft weapon cabin door mechanism. Background technique [0002] In order to reduce drag and reduce the radar reflection area, combat aircraft will load weapons inside the weapon compartment. In order to provide enough weapons delivery channels, it is necessary to complete the opening and closing of the hatch in the air, and a rotating mechanism that rotates about 90° around the axis of rotation is usually used to realize the movement of the hatch. In order to reduce the impact of weapons delivery on the center of gravity of the aircraft, the weapon compartment is generally arranged in the middle of the aircraft. The currently widely used weapon compartment door will significantly increase the lateral area of ​​the middle of the aircraft when it is opened. The situation of closing and opening the door For example, attached to the manual figure 1 , 2 ...

AI Technical Summary

Problems solved by technology

In order to reduce the impact of weapons delivery on the center of gravity of the aircraft, the weapon compartment is generally arranged in the middle of the aircraft. The currently widely used weapon compartment door will significantly increase the lateral area of ​​the middle of the aircraft when it is opened. The situation of closing and opening the door For example, attached to the manual figure 1 , 2 As shown, it leads to the reduction of aircraft heading stability, especially for the hatches that need to be opened under supersonic conditions, because the focus position of the aircraft moves backward, the impact of hatch opening on heading stability is more serious

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