Actuator of airplane electric braking device

A technology of electric brakes and actuators, applied in the direction of brakes, brake transmission devices, vehicle components, etc., can solve the problems of complex structure, low transmission efficiency, and inability to realize closed-loop control, etc., and achieve the effect of high transmission efficiency and simple structure
CN103661345AActive Publication Date: 2014-03-26XIAN AVIATION BRAKE TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAN AVIATION BRAKE TECH
Publication Date
2014-03-26

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Abstract

Disclosed is an actuator of an airplane electric braking device, a reduction gear assembly and a ball screw assembly are arranged in a shell. A second gear of the reduction gear assembly is meshed with a ball screw assembly gear of the ball screw assembly, and a first gear of the reduction gear assembly is meshed with an output shaft of a motor. A wire of the motor and a wire of the output end of a signal processor are led out through a plug assembly. A data line of a force sensor is connected with a data input port of the signal processor. A piston is arranged in a middle shell and a lower shell in a sealed mode. The ball screw assembly is arranged in the piston. By controlling the motor to produce corresponding rotating torque, amplifying the rotating torque through the reduction gear assembly, and converting rotating motion into linear motion to conduct outputting through a ball screw and then into a thrust force required by braking, the defects in the prior art are overcome, the structure is simple, transmission efficiency is high, and closed-loop control over an electro-mechanical actuator is achieved.
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Description

technical field

[0001] The invention relates to an aircraft brake device, in particular to an actuator for an aircraft electric brake device. Background technique

[0002] Aircraft brakes provide braking torque for aircraft braking, mainly including hydraulic brakes and electric brakes. The electric braking device provides the braking thrust by the actuator.

[0003] At present, domestic aircraft brake devices all use hydraulic brake devices, which generally provide hydraulic power through the centralized hydraulic system of the aircraft, and the hydraulic pistons connected in series on the brake device generate the required force for braking, but there will be brakes during use. The problem of fire caused by hydraulic oil leakage.

[0004] Publication No. CN03249715.6 proposes an electromechanical actuator that converts rotary motion into linear reciprocating motion by a motor through a transmission drive mechanism and an executive mechanism. The electromechanical actuat...

Claims

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