Device for monitoring paddle angle of working propeller

Abstract

The invention discloses a device for monitoring a paddle angle of a working propeller. A cylinder body of a hydraulic cylinder is fixed on one end wall, without the paddle, of a paddle shell, one end of a stirring sleeve is fixedly connected with an eccentric pin fixedly arranged on each paddle through a bearing, the other end of the stirring sleeve is fixed on a piston; a beta tube is arranged in central holes of a paddle shaft, the paddle shell and the stirring sleeve in a penetrating mode, one end of the beta tube is fixed on the piston, the other end of the beta tube extends into a displacement sensor, two oil transporting cavities which are a central oil cavity and an on-wall oil cavity surrounding the central oil cavity are formed in the beta tube; the central oil cavity is communicated with an oil cavity I of the hydraulic cylinder, the on-wall oil cavity is communicated with an oil cavity II of the hydraulic cylinder; the displacement sensor is fixed on an engine shell; a signal output end of the displacement sensor is connected with a signal input end of a processor, a signal output end of the processor is connected with a display screen. The device disclosed by the invention can be used for momentarily measuring and timely feeding back the paddle angle, is simple and reliable in structure, convenient to mount and dismount, precise in paddle angle measuring and capable of realizing field maintenance and replacement.

Description

technical field [0001] The invention relates to a device for monitoring the blade angle of a working propeller. Background technique [0002] The propeller pitch control device is to control the propeller to work at the best blade angle under various working conditions of the engine and the aircraft, so as to achieve the best working efficiency of the propeller. Because the flight environment of the aircraft is very complicated, it is a permanent subject to study the variable pitch control device of the propeller so that it can control the blade angle more accurately and achieve the best output efficiency of the propeller. Therefore, the working propeller blade angle It is necessary to implement monitoring and collect the blade angle in time so as to study the relationship between the blade angle and the propeller speed and engine power. It is necessary to study a better propeller pitch control device, but the current propellers cannot be measured in real time and Feedback ...

AI Technical Summary

Problems solved by technology

Because the flight environment of the aircraft is very complex, it is a permanent subject to study the variable pitch control device of the propeller so that it can control the blade angle more accurately and achieve the best output efficiency of the propeller. Therefore, the working propeller blade angle It is necessary to implement monitoring and collect the blade angle in time to study the relationship between blade angle, propeller speed and engine power, and then to study a better propeller pitch control device, but the current propellers cannot be measured in real time and Timely feedback of the angle of its blades

Images