Vertical rolling mill as well as control method and system thereof

The invention discloses a control method of a vertical rolling mill. The control method comprises the steps of acquiring the torque amplitude limiting value of a main motor of the vertical rolling mill and the overload rolling force of a vertical roller; after the vertical roller is loaded, acquirin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG LEI, CUI ERBAO, ZHANG PENG, HUO GUANGFAN, LIU ZHI, WANG LUN, ZHANG HUAWEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention discloses a control method of a vertical rolling mill. The control method comprises the steps of acquiring the torque amplitude limiting value of a main motor of the vertical rolling mill and the overload rolling force of a vertical roller; after the vertical roller is loaded, acquiring the main transmission torque of the vertical roller, the load torque of the vertical roller and the rolling force of the vertical roller; after the vertical roller is loaded and before a flat roller is loaded, if the main transmission torque of the vertical roller is smaller than the torque amplitude limiting value of the main motor, when the load torque of the vertical roller is increased, decreasing the rotating speed of the vertical roller, and when the load torque of the vertical roller is decreased, increasing the rotating speed of the vertical roller; and after the vertical roller is loaded and before the flat roller is loaded, if the rolling force of the vertical roller is larger than or equal to the overl