Actuator cylinder, adjusting mechanism of variable stator vane and aircraft engine

Abstract

The invention relates to an actuating cylinder, an adjusting mechanism of a variable stator vane and an aircraft engine. The actuator cylinder comprises a cylinder body, a transmission part and a first sealing part, wherein a first end of the transmission part is arranged in the cylinder body to form a cavity with the cylinder body; a second end of the transmission part is arranged outside the cylinder body in the axial direction of the cylinder body and is used for being connected with an executing part; the first sealing part is arranged at the first end of the transmission part and is usedfor separating the cavity into a first cavity and a second cavity; and the pressure difference between the first cavity and the second cavity is adjustable and is used for driving the transmission part to rotate in a reciprocating mode. According to the actuator cylinder, force transmission forms can be simplified, the action amplitude of the transmission part is small, and the structure interference risk is reduced.

Description

technical field [0001] The invention relates to the field of aviation equipment, in particular to an actuator, an adjustment mechanism for adjustable stator blades and an aeroengine. Background technique [0002] The VSV (Variable Stator Vane) adjustment mechanism of the engine is generally driven by the actuator. Since the actuator can only do linear reciprocating motion, in order to convert the linear motion into the rotation of the VSV actuating ring along the central axis of the engine, generally through Two ways to achieve. [0003] One is to place the actuator parallel to the axis of the engine, and realize the conversion of the motion mode (conversion from linear motion to rotation) through a series of mechanical structures for conversion. The disadvantage of this method is that the mechanical structure is complex and takes up a lot of space. [0004] The other is to place the actuator perpendicular to the axis of the engine, and the actuator is also perpendicular to...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the actuator itself has to move with the VSV actuating ring, so the hydraulic oil needs to be transported through the hose, which takes up a lot of space, and the accessory itself cannot be completely fixed on the casing, and the movement of the accessory itself It may cause more interference risks, frequent movement of pipelines may cause pipeline fatigue, or oil leakage at the interface. Due to the characteristics of the force transmission connecting rod structure, the torque received by the torsion bar is unstable

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