Four-link opening mechanism for aircraft radome

Abstract

The invention relates to a four-bar linkage opening mechanism for an aircraft radome, which comprises a fixed piece, a movable piece, a straight connecting rod, a curved connecting rod and a fastener; the fixed piece includes a left fixed piece and a right fixed piece; The left movable part and the right movable part; the straight link includes the left straight link and the right straight link; the curved link includes the left curved link and the right curved link; the connecting piece includes bolts, nuts, washers , flat head shaft and cotter pin; the left fixed part is connected to the left direct connection and the left curved connecting rod respectively through the flat head shaft, the left movable part is connected to the left direct connection and the left bending connecting rod respectively through the flat head shaft, and the four are connected by a four-point rotating shaft. A four-bar linkage is formed. The positive effects of the invention are: (1) maintaining the integrity of the fuselage structure; (2) reasonable trajectory and high motion precision; (3) small size and light weight; (4) beautiful and practical appearance.

Description

technical field [0001] The invention relates to the technical field of aviation equipment, in particular to a four-link opening mechanism of an aircraft radome. Background technique [0002] In order to maintain the aerodynamic shape, the opening mechanism of modern aircraft radome is usually arranged inside the radome. At present, the main opening mechanisms are slideway type and fixed hinge type. The slideway mechanism has a good opening track without interference, and when the radome is closed, it fits tightly with the fuselage and has good sealing performance. However, the weight is large, which has a great influence on the fuselage structure, and the fixing of the radome is poor when the radome is opened. The fixed hinge mechanism is light in weight and has good fixation. However, since the radome can only rotate around the fixed axis, the movement trajectory is not good. It is necessary to modify the fuselage structure to eliminate the interference between the radome ...

AI Technical Summary

Problems solved by technology

However, it is heavy and has a great impact on the fuselage structure, and the fixation of the radome is poor when the radome is opened.

The fixed hinge mechanism is light in weight and has good fixation. However, since the radome can only rotate around the fixed axis, the movement trajectory is not good. It is necessary to modify the fuselage structure to eliminate the interference between the radome and the fuselage structure when it is opened. , at the same time, the radome and the fuselage cannot be tightly fitted, resulting in poor sealing

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