A transmission mechanism for manual and automatic switching of aircraft throttle

Abstract

The invention belongs to the field of aerospace transmission systems and discloses a transmission mechanism for manual and automatic switching of an aircraft throttle. The transmission mechanism includes a base and bracket, an electric push rod unit, a reset unit, a pulley unit and a disc brake unit. When the system is normal and powered on, the electric suction head in the electric push rod unit moves to the right to suck the connector, and Drive the reset block to move to the leftmost side of the trapezoidal groove, so that the bracket has the degree of freedom in the up and down direction, and the rotation of the operating rod is converted into the up and down motion of the bracket, so as to ensure the operability of the operating rod; when the system is abnormal or the mechanism is powered off , the electric sucker loses suction, and the reset block moves to the rightmost side of the trapezoidal groove under the action of the spring to limit the up and down movement of the bracket. When the operating lever is operated, the throttle lever is directly driven to rotate through the steel cable and the pulley to realize manual control of the throttle. Through the invention, the reliability of the throttle control system is improved, the throttle response characteristic is improved, and the driver's throttle control feel is improved.

Description

technical field [0001] The invention belongs to the field of aerospace transmission systems, and more specifically relates to a transmission mechanism for manual and automatic switching of an aircraft throttle. Background technique [0002] The throttle of some aircraft is directly controlled by the cable, that is, the joystick and the throttle of each engine are connected through their own independent ring cable. linkage. [0003] The problems existing in the existing operation method are: the ring cable must be pre-tensioned and travel through the tortuous channel, and the repeated bending during pulling operation may easily lead to fatigue fracture; the resistance and feel of the operating rod change greatly; the throttle response is not sensitive . If the wire cable is removed and the fly-by-wire control is used directly, once the fly-by-wire system fails, such as: controller failure, poor connection, communication failure, power failure, etc., the opening of the accel...

AI Technical Summary

Problems solved by technology

[0003] The problems existing in the existing operation method are: the ring cable must be pre-tensioned and travel through the tortuous channel, and the repeated bending during pulling operation may easily lead to fatigue fracture; the resistance and feel of the operating rod change greatly; the throttle response is not sensitive

If the wire cable is removed and the fly-by-wire control is used directly, once the fly-by-wire system fails, such as: controller failure, poor connection, communication failure, power failure, etc., the opening of the accelerator will be uncontrollable, and the driver will not be able to control the engine. Security risks

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