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:
Nov. 06, 2018
Filed:
Aug. 06, 2013
Applicant:
Siemens Aktiengesellschaft, München, DE;
Inventor:
Andreas Kube, Aachen, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 25/00 (2006.01); B02C 15/00 (2006.01); H02P 31/00 (2006.01);
U.S. Cl.
CPC ...
B02C 25/00 (2013.01); B02C 15/007 (2013.01); H02P 31/00 (2013.01);
Abstract
A method for drive control of a vertical roller mill having a grinding table rotatable about a vertical axis includes driving the grinding table with a drive train comprising an electric motor and a gearbox with a rotation speed; monitoring a profile of a measured value derived from vibration-relevant measured values to detect a predefined pattern in the profile; and when the predefined pattern is detected, automatically increasing or reducing the rotation speed of the grinding table by a predefined adjustment value. A corresponding drive system operating according to the method is also disclosed.