Aircraft braking electro-hydraulic servo system with characteristics of high response and high stability

Abstract

The invention provides an aircraft braking electro-hydraulic servo system with characteristics of high response and high stability, and the aircraft braking electro-hydraulic servo system with characteristics of high response and high stability is characterized in that a driver can control the speed of aircraft wheels by stepping on a brake pedal, and the tail end of the brake pedal moves on a sliding rod; when the aircraft slides downwards to exceed the power-off piece, a brake signal is sent to the controller, a resistor is installed on the sliding rod, the brake signal can be increased, and then an electric signal is transmitted to the electro-hydraulic servo valve, so that an opening of the valve is enlarged, a piston rod of the hydraulic cylinder is controlled to accurately stretch out, a clamping rod is clamped, and rapid braking is achieved. In addition, the speed of the wheel of the aircraft is detected, the speed information is fed back to the controller, the controller sends a signal to the servo valve through comparison processing to adjust the telescopic direction and the telescopic amount of the hydraulic cylinder, so that the clamping rod is controlled to adjust the speed of the aircraft wheels to be the same, a hydraulic spring is installed on the clamping rod, and the hydraulic spring is provided with a one-way valve and a throttling valve. Rigid collision occurring at the moment when the brake wheels are loosened can be prevented; meanwhile, braking rapidness cannot be affected, an airplane can accelerate and decelerate on a runway more quickly, the emergency situation that a driver needs to adjust the wheel speed in time cannot occur, and therefore the airplane can take off and land more safely and quickly.

Description

technical field [0001] The invention mainly relates to the field of aircraft braking, and mainly relates to an aircraft braking electro-hydraulic servo system with high response and high stability characteristics. Background technique [0002] The brake device of the aircraft plays an extremely important role in the process of take-off and landing of the aircraft, and is an important device for realizing the process of take-off and landing of the aircraft. When the pilot operates the aircraft to take off and land, it is generally necessary to adjust the direction and speed by braking continuously, so that the aircraft can take off and land safely. [0003] Most of the current aircraft braking is during the process of the aircraft entering the runway and exiting the runway. It is also an indispensable action for the pilot to control the aircraft to turn on the ground. The differential braking of the left and right landing gear wheels is realized by the aircraft braking syste...

AI Technical Summary

Problems solved by technology

[0004] The direction of braking and turning depends on the value of the braking torque of the wheels on both sides. Which side has the largest braking torque, the nose of the aircraft will turn to that side, guiding the aircraft to move in the desired direction, but this requires too much technical requirements for the aircraft operator. high, and it is impossible to keep the plane taxiing in a straight line. If there is a deviation, you need to slow down, which increases the driving distance during take-off. In addition, once an emergency occurs, you will not be able to brake immediately, and emergency braking may cause the danger of losing control of the direction. With the continuous development of aviation technology, it is necessary to continuously design and innovate the aircraft braking system

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