The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Oct. 18, 2005
Karl-heinz Filbry, Höchheim, DE;
Karl-Heinz Filbry, Höchheim, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The invention relates to a method and a device for identifying a damaged bearing () of a rotating shaft (). According to the invention: the rotational speed (n) of the shaft () is determined; the alternating component (n) of the rotational speed (n) is determined, together with a smooth curve (h) of said alternating component (n) of the rotational speed (n); the smooth curve (h) is converted into the frequency range and a frequency response (B) of the value of the smooth curve (h) is determined. Said frequency response (B) of the value of the curve is monitored for the passing of a threshold value (G, G, G, G) and if said threshold value (G, G, G, G) is exceeded, a damaged bearing () is identified. The invention thus provides a method and a device for identifying a damaged bearing () of a rotating shaft () of a motor, which do not require a vibration sensor () to identify a damaged bearing () of said shaft ().