Electric driving mechanism suitable for wing folding system

Abstract

The invention discloses an electric driving mechanism suitable for a wing folding system. The electric driving mechanism comprises a shell, a worm and gear is used for transmission, and the self-locking performance of the worm and gear can be utilized to keep the stability of transmission all the time; an NGWN planetary reducer is adopted as an output mechanism, so that the large transmission ratio of the whole transmission chain is achieved, double-rocker arm output is achieved, the stability of rotary output is improved, and an angle detection device is beneficial to improving the control precision; an outer hexagonal interface is designed on the worm, so that manual input can be realized; and compared with a hydraulic driving structure, the electric driving mechanism has the advantagesthat a motor and a gear transmission system can be combined into a unit, so that parts such as hydraulic oil, an oil tank, an oil conveying pipeline and a control valve are reduced, the weight of thewhole airplane can be reduced, corresponding circuits, chips, sensors and the like can be matched for control, and the stability of the wing folding process is guaranteed; and the system is high in integration degree, simple in structure, convenient to install and beneficial to maintenance and overall replacement.

Description

technical field [0001] The invention relates to the technical field of wing folding, in particular to an electric drive mechanism suitable for a wing folding system. Background technique [0002] Wings are an indispensable part of all kinds of aircraft, but when they are on the ground, they have no effect and take up a lot of space. The development of wing-folding technology comes from the need of carrier-based aircraft to save deck space; in addition, because folding wings can reduce the width of the fuselage, which is convenient for aircraft transportation and storage, it also has certain significance for the design of ordinary aircraft. [0003] The wing folding system usually consists of the fixed end of the wing (inner wing), the movable end of the wing (outer wing), folding mechanism, driving mechanism, control system, locking system, etc. [0004] The folding mechanism is directly connected to the fixed end of the wing (inner wing) and the movable end of the wing (ou...

AI Technical Summary

Problems solved by technology

[0007] 1) It is difficult to integrate power units, actuators, valves and other components. They must be connected by pipelines, and hydraulic oil leakage is prone to occur. However, the connection and layout of hydraulic pipelines are more difficult and demanding than circuits, and special high-pressure rotary joints are required. Wait;

[0008] 2) The hydraulic drive mechanism often adopts open-loop control, and the impact is relatively large during the movement;

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