Rotary transducer with bearing monitoring system – Patent Abstract

Applicant: Baumer Hübner GmbH, Germany

This invention relates to a rotary transducer (1) and to a method for monitoring wear on this device. Patent WO/2009/015735 provides further details.

This invention relates to a rotary transducer (1) and to a method for monitoring wear on this device. The rotary transducer has a detector unit (11) that uses at least one measurement sensor (12). During operation, the measurement sensor can be used to generate a signal (13) that is representative of the angular position and/or velocity of an object which can be connected to the rotary transducer. The detector unit (11) has at least one rotary bearing (15) and at least one material measure (16) which can be rotated by means of the rotary bearing relative to the measurement sensor, and is arranged in the measurement field (17) of the latter. A monitoring device (20), which is connected to the measurement sensor such that data are transmitted and can be used during operation, to output a state signal (23) (which is representative of the state of wear of the rotary transducer) on the basis of the measurement signal, is also integrated in the rotary transducer (1). In order to provide early warning of mechanical failure of the rotary transducer, the monitoring device (20) is provided with a register (25) which can permanently store a value that is representative of the state of wear of the rotary bearing and is formed from the information relating to the angular position and/or velocity that is contained in the measurement signal.

Patent number: WO/2009/015735

Inventors: L. Wilhelmy, B. Hiller and J. Wilhelmy

Publication date: 5 February 2009