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. 27, 2017
Filed:
Mar. 07, 2014
Milan Moravec, Usti nad Orlici, CZ;
Miroslav Stusak, Chocen, CZ;
Jiri Sloupensky, Chocen, CZ;
RIETER CZ S.R.O., , CZ;
Abstract
A spinning unit and method for detecting changes of position of a shaftless spinning rotor () of an open-end spinning machine in a cavity of an active magnetic bearing, in which the position of the spinning rotor () is detected by a system of sensors (A, B) and on basis of the detected changes in the position of the spinning rotor () is adjusted controlling of the active magnetic bearing in order to eliminate undesirable changes in the position of the spinning rotor () in the cavity of the active magnetic bearing. Continuously is detected radial shifting of the spinning rotor () and simultaneously is continuously detected inclination of the spinning rotor (), whereupon according to the detected changes in the position of the spinning rotor () is determined shifting and/or inclination of the spinning rotor () which is used for subsequent adjustment of the controlling of position of the spinning rotor () in the active magnetic bearing, wherein both radial shifting and inclination of the spinning rotor are each detected by at least two pairs of sensors of the distance of monitored surface of the spinning rotor, the pairs of sensors for detecting radial shifting of the spinning rotor detect changes of distances of the cylindrical wall of the spinning rotor from the sensors. The sensors (A, B) of the position of the spinning rotor () are grouped into pairs, whereby two pairs of sensors (A, A) for detecting of radial shifting of the spinning rotor () are arranged on the opposite sides of the spinning rotor () against the cylindrical wall () of the spinning rotor () and at the same time another two pairs of sensors (B, B) for detecting of inclination of the spinning rotor () are arranged on the opposite sides of the spinning rotor () against the wall () of the spinning rotor (), which is perpendicular to the rotation axis (OA) of the spinning rotor ().