Device and method for shifting work roll of cluster mill

A roll shifting cylinder 14 is driven to pivot a lever arm 12, thereby shifting a work roll 1 via a thrust bearing 15. A control unit 27 performs auto-positioning control, based on a shift amount performance value of the thrust bearing 15 detected by a shift amount detection sensor 16, so as to obta...

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Bibliographische Detailangaben
Hauptverfasser: HIURA TADASHI, HANGAI YOUICHI, KATSURA SHIGEFUMI, KOHIRO YOSHITAKE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A roll shifting cylinder 14 is driven to pivot a lever arm 12, thereby shifting a work roll 1 via a thrust bearing 15. A control unit 27 performs auto-positioning control, based on a shift amount performance value of the thrust bearing 15 detected by a shift amount detection sensor 16, so as to obtain a target roll shift position. A constant clearance amount is maintained between an end surface of the work roll 1 and the thrust bearing 15 during a rolling operation, and a chockless mill is effectively used as a work roll shift mill.