Apparatus and method for monitoring the state of a roller bearing

摘要

A method and an apparatus are disclosed for monitoring the state of a roller bearing. The apparatus includes a vibration sensor, configured to detect vibrations which occur during operation of the bearing, and to generate a first signal as a function of the detected vibrations. A diagnosis electronics system is configured to output an item of information about a state of the bearing on the basis of the first signal and at least one limit value stored in the diagnosis electronics system. A sound emission sensor is provided, configured to pick up noises, produced in the event of plastic deformation of the bearing at least in regions. A second signal is then transmitted to the diagnosis electronics system, taking into account the picked-up noises.

主权项

1. An apparatus for monitoring the state of a roller bearing comprising:
a vibration sensor configured to detect vibrations which occur during operation of the bearing and configured to generate a first signal as a function of the detected vibrations; a diagnosis electronics system configured to output an item of information about a state of the bearing on the basis of the first signal, generated by the vibration sensor, and of at least one limit value, stored in the diagnosis electronics system; and a sound emission sensor configured to pick up noises produced in an event of plastic deformation of the bearing at least in regions, a second signal being transmittable to the diagnosis electronics system, taking the picked-up noises into account, wherein the diagnosis electronics system is designed such that the stored limit values are changeable, taking into account the received second signal, and adjusted limit values are generateable as a result.