Troubleshooting and Life Analysis Based on Abrasive Wear of RV Reducer

The compact structure of RV reducer, large transmission torque, transmission components, the characteristics of the internal parts wear can not be directly observed when the wear parts and wear state, so only through indirect methods to determine the working state of the reducer parts. This paper summarizes the relationship between the wear state of RV reducer parts and the dimensional characteristics of wear chips by fractalizing the shape and size characteristics of grease chips and comparing and analyzing them with the physical prototype. The results show that: the proportion of the area with abrasive chip size larger than 200 11m is more than 15%, which is equivalent to the fatigue spalling of the internal parts; the proportion of the area with abrasive chip size of 0-100 $\mu$m is more than 40%, which is equivalent to the prototype is in the period of stable wear; the results of the research provide guidance for the on-line diagnosis and prediction of the life span of the RV reducer.