CONTROLLING HYDRAULIC ACTUATING CYLINDERS IN ROLL STANDS

The invention relates to a hydraulic feedback control loop (1) for controlling a hydraulic actuating cylinder (3), in particular an adjustment cylinder for a working roll in a roll stand. The actuating cylinder comprises a cylindrical housing (31) and a piston (32) slidably arranged therein. The pis...

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Bibliographische Detailangaben
Hauptverfasser:	SOHLER JORN, ZIELENBACH MICHAEL, HORN PAUL, SCHMIDT MARK
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS PUNCHING METAL REGULATING ROLLING OF METAL SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a hydraulic feedback control loop (1) for controlling a hydraulic actuating cylinder (3), in particular an adjustment cylinder for a working roll in a roll stand. The actuating cylinder comprises a cylindrical housing (31) and a piston (32) slidably arranged therein. The piston divides the housing interior into a first hydraulic chamber (34) and a second hydraulic chamber (35). The feedback control loop (1) comprises: at least one first hydraulic valve (10) which is designed to apply a hydraulic fluid to the first hydraulic chamber (34), wherein the hydraulic pressure of the first hydraulic chamber (34) can be adjusted by actuating the first hydraulic valve (10); at least one second hydraulic valve (11) which is designed to apply a hydraulic fluid to the second hydraulic chamber (35), wherein the hydraulic pressure of the second hydraulic chamber (35) can be adjusted by actuating the second hydraulic valve (11); an adjusting device (12-20) which is provided and designed for actuating