Cabin door transient actuating device based on valve control variable displacement motor and driving method

Abstract

The invention relates to a cabin door transient actuating device based on a valve control variable displacement motor and a driving method. One embodiment of the device comprises a servo valve, the variable displacement motor and a load-sensitive mechanism. A first oil inlet of the variable displacement motor is connected with a first oil outlet of the servo valve, and a first oil return port of the variable displacement motor is connected with a second oil outlet of the servo valve. An output shaft of the variable displacement motor is connected with a cabin door load and used for outputting torque for driving the cabin door load. The load-sensitive mechanism is used for adjusting the dip angle of a swash plate of the variable displacement motor based on the hydraulic pressure difference between the first oil inlet and the first oil return port of the variable displacement motor. By the adoption of the scheme, the displacement of the variable displacement motor is adjusted by sensing the load, the throttling effect on the servo valve is weakened under the working condition that the load is not uniform or the load is small, and then the energy utilization rate of a system is increased.

Description

technical field [0001] The present application relates to the technical field of aircraft door drive, in particular to a door transient actuation device and driving method based on a valve-controlled variable motor. Background technique [0002] With the emergence of advanced airborne weapons and the design requirements for the simple aerodynamic shape of aircraft, the weapon equipment system of contemporary fighter jets has changed from the original external type to the internal type. Especially for the requirements of high stealth, supersonic cruise and super maneuverability of the new generation of fighter jets, the embedded loading of weapons has become an inevitable choice. Therefore just must open its weapon bay door to carry out weapon launch and drop bomb when fighter air combat and bomber drop. The key to the weapon's embedded loading technology is the hatch actuation system. It is characterized by large inertia and fast opening and closing, which requires instant...

AI Technical Summary

Problems solved by technology

[0006] Since the installed power of the hatch actuation system is very large, the hydraulic system of the main engine needs to provide a relatively large peak power, which may even account for more than half of the total power of the hydraulic system of the whole machine, which brings a great burden to the hydraulic system of the main engine

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