DIAGNOSIS OF GEAR CONDITION BY COMPARING DATA FROM COUPLED GEARS

摘要

A method and system for diagnosing gear condition by comparing data collected from each member of a set of coupled gears, including mating gears. Data containing vibrations or other signals from the set of coupled gears are collected. Condition indicators are calculated from the vibration data. The values of these condition indicators are compared for each pair of coupled gears. A divergence of the condition indicators as indicated by the comparison may indicate the presence of a faulted or otherwise anomalous condition. Such indication may be provided to a user. In one variation, the vibration data are used to calculate a synchronous average for each gear and the condition indicators are based on the synchronous average.

主权项

1. A method for detecting a condition in a device containing a gear train, said gear train having a first gear rotationally coupled to a second gear, said method comprising:
(a) an evaluation system receiving gear train rotation information relating to rotation of said gear train; (b) said evaluation system receiving vibration information relating to vibration of said device, said vibration of said device comprising vibration coupled from said gear train; (c) said evaluation system determining a first condition indicator for said first gear based on processing said vibration information relative to a rotation parameter of said first gear, said rotation parameter of said first gear determined from said gear train rotation information; (d) said evaluation system determining a second condition indicator for said second gear based on processing said vibration information relative to a rotation parameter of said second gear, said rotation parameter of said second gear determined from said gear train rotation information; said rotation parameter of said first gear being not equal to said rotation parameter of said second gear; (e) said evaluation system comparing said first condition indicator with said second condition indicator to generate a comparison condition indicator.