Chapters authored
Automated Condition Monitoring of a Cycloid Gearbox
While condition monitoring techniques have been developed for many gearbox types, there has been almost no research on condition monitoring of cycloid driver gearboxes. Cycloid gearboxes are used where high reduction ratios are needed in a single stage. While most gear designs are based on an involute subject to a sliding force, cycloid gear designs are subject to compression. As a result, cycloid gearboxes are quiet, have low backlash, and have large torsional stiffness. Because there is no typical pinion-gear pair in this gearbox, the calculation of the reduction ratio is non-standard. Further, as the eccentric bearing which drives the cycloid gears is in the rotating frame, the calculated fault frequency rates are not as expected. This paper describes the dynamics needed to identify cycloid gearbox fault features to achieve automated fault detection and alerting.
Part of the book: Maintenance Management