Helicopter Tail Rotor Torque Control Mechanism

Abstract

The invention discloses a helicopter tail rotor torque changing operating mechanism which comprises a rotor wing shaft, a torque changing plate, a motor, a tail rotor torque changing operating assembly and a steering engine. The rotor wing shaft is provided with a tail rotor extending in the radial direction of the rotor wing shaft, and the tail rotor can rotate around the axis of the rotor wing shaft; the torque changing plate is movably arranged on the rotor wing shaft in the axial direction of the rotor wing shaft to drive the torque of the tail rotor to be changed; the motor is connected with the rotor wing shaft to drive the rotor wing shaft to rotate; the tail rotor torque changing operating assembly is connected with the torque changing plate to drive the torque changing plate to move; the steering engine is connected with the tail rotor torque changing operating assembly to enable the tail rotor torque changing operating assembly to drive the torque of the tail rotor to be changed. According to the helicopter tail rotor torque changing operating mechanism, by arranging the tail rotor torque changing operating assembly on the rotor wing shaft, the purpose of driving the torque of the tail rotor to be changed can be achieved; operation is easy, and the using reliability is high. The helicopter tail rotor torque changing operating mechanism is simple and compact in structure, easy to machine and manufacture, low in cost, smaller in operation gap among all the parts, more reliable in force transferring path, continuous in movement and accurate in transmission.

Description

technical field [0001] The invention relates to the field of aviation technology, and more specifically, to a helicopter tail rotor torque conversion control mechanism. Background technique [0002] The tail rotor torque conversion mechanism of the helicopter in the related art uses the steering gear to drive the ball bearing at the other end of the L-shaped rocker arm, so as to drive the tail rotor blade torque conversion disc to move up and down along the rotor shaft, and then realize the blade torque converter. Since the motion trajectory of the end of the L-shaped rocker arm is a circular arc around the L-shaped turning point as the center of the circle, if the ball bearing is not used, when the slider moves up and down, the rocker arm will produce a force exerted on the radial direction of the rotor shaft. thrust. However, after the ball bearing is used for a period of time, there will be a movement gap due to friction, which will affect the control of the blade torqu...

AI Technical Summary

Problems solved by technology

However, after the ball bearing is used for a period of time, there will be a movement gap due to friction, which will affect the control of the blade torque conversion, and because the size of the ball bearing itself is small, when the required manipulation force is relatively large, the strength will be insufficient. question

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