Patent · US Active

Machine and method for monitoring the state of a safety bearing of a machine

US10110088B2 · kind B2 · utility

1Cited by

13References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hartmut Walter · Berlin, DE
Jan Georgi · Schweinfurt, DE

Key dates

Filing date	Feb 2, 2016
Grant date	Oct 23, 2018
Priority date	—
Expiry date	Jun 3, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01M13/04
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a method for monitoring a state of a safety bearing of a rotor shaft of a machine, with the rotor shaft being supported by a magnetic bearing and the safety bearing having an outer ring and an inner ring arranged for rotation with respect to the outer ring, the rotor shaft of the machine is caught with the safety bearing when the magnetic bearing of the machine fails. The magnetic bearing is witched off for monitoring the state of the safety bearing. The rotor shaft is rotated with the machine under control of a higher-ranking controller by using a defined motion sequence, and a physical variable of the safety bearing is measured with a sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.