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),...

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Bibliographische Detailangaben
Hauptverfasser: HIURA TADASHI, HANGAI YOUICHI, KATSURA 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.