Method for identifying damage on transmissions

摘要

A method for identifying possible damage in a toothed transmission stage having at least one pair of engagement toothed wheels includes measuring with a vibration transducer an oscillation signal corresponding to oscillations produced by a rolling and impact motion when teeth of a pair of the toothed wheels mesh under load during operation of the transmission stage, comparing the oscillation signal with a calibration oscillation signal, determining a torque acting on the transmission stage from a difference between the oscillation signal and the calibration oscillation signal, and evaluating the measured oscillation signal commensurate with the determined torque to identify the possible damage to the transmission stage.

主权项

1. A method for identifying possible damage in a toothed transmission stage having at least one pair of meshing toothed wheels, comprising the steps of:
measuring with at least one vibration transducer at least one first oscillation signal corresponding to oscillations produced by a rolling and impact motion when teeth of a first of the at least one pair of the toothed wheels mesh under load during operation of the transmission stage, determining from the at least one first oscillation signal a tooth engagement duration of the at least one pair of meshing toothed wheels, determining a difference between a pattern of the tooth engagement duration in operation of the transmission stage and the tooth engagement duration under a known load and at a known speed, comparing the at least one first oscillation signal with a first calibration oscillation signal, the difference between a pattern of the tooth engagement duration in operation of the transmission stage and the tooth engagement duration under a known load and at a known speed, and evaluating the at least one measured first oscillation signal and the determined torque to identify the possible damage to the transmission stage.