Method and apparatus for damping contact oscillations of rotating rolls

In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls are held endways in bearings. At least two rolls form a nip with each other. The damping is carried out actively and the active stimulation (phase-shifted counteroscill...

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Bibliographische Detailangaben
1. Verfasser:	KUSTERMANN MARTIN
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES FOR PAPER-MAKING MACHINES APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING CALENDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING IMPREGNATING OR COATING OF PAPER LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PRODUCTION OF CELLULOSE PULP COMPOSITIONS SHOCK-ABSORBERS SPRAYING OR ATOMISING IN GENERAL SPRINGS TEXTILES THERMAL INSULATION IN GENERAL TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G WEAPONS
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Beschreibung
Zusammenfassung:	In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls are held endways in bearings. At least two rolls form a nip with each other. The damping is carried out actively and the active stimulation (phase-shifted counteroscillation) acts from outside directly and/or indirectly on at least one bearing point of one of the rolls.