Diagnostics of cycloidal gear speed reducers in vertical multirotor system

Abstract

This paper deals with failure diagnostic problems of vertical axis rotating machine driven by ten cycloidal gear reducers with high coupling ration. The cycloidal gear drive is not back drivable device and in case of only one cycloidal drive failure from ten simultaneously running it may cause serious failure of expensive driven involute gear tooth. The main task of ten cycloidal gear reducers research - identification of vibration sources and determined parameters in attempt to evaluate technical condition of each cycloidal drive, especially technical condition of crankshafts eccentric antifriction bearings. Authors suggested effective cycloidal gear speed reducer main bearings high frequency vibration monitoring procedure, based on long term research data provided in industry.