DIAGNOSTIC METHOD FOR PREDICTING MAINTENANCE REQUIREMENTS INROTATING EQUIPMENT

摘要

This invention is a method that uses the electric signal drawn from a vibration sensor containing a piezoelectric crystal over a short period of time to generate a value. There is a reading taken when the spindle is loaded and at a steady state (same position relative to location of load in machine), and another taken when the spindle is unloaded and at steady state. Based on observations, a good spindle shows more energy when loaded verses unloaded. The opposite relationship is characteristic of a bad spindle.