Faults Analysis and Diagnosis of DRJ-460 Dish Centrifugal Separator′s Helical Gear

摘要

The main faults of dish centrifugal sep ar ator′s helical gear are described in this paper. In order to diagnose the DRJ- 460 dish centrifugal separator correctly, the vibration is tested with a helical gear under both normal and abnormal conditions. After comparing several general methods of the gear′s fault feature extraction, a new convenient and effective method is presented on the basis of analyzing the vibration spectr um under different rotary velocities.