CROWN ADJUSTMENT SYSTEM FOR 20 STEPS OF CLUSTER MILL

摘要

PURPOSE: To make it possible to adjust the intricate roll gap contours of 20-high cluster mills by supporting shafts and idler rolls having greatly reduced transverse rigidity. CONSTITUTION: On B and C backing bearing assemblies, O-rings 67 are mounted between the respective sides of rings 61 and adjacent eccentrics 74 and 75 so as to form gaps and consequently, the shafts 60 can be freely bent by the elasticity of the O-rings 67. The respective eccentrics 74 and 75 are keyed to the mounting rings. Segmented bridge elements are disposed as to transfer the load from the center to the respective sides of the respective rollers. The idler roll 14 of the second intermediate roll has the integral, rod-like, transversely flexible core. A series of the plural rings slightly spaced from each other forming a roll body are installed on the core. The respective rings are provided with counter cores from their respective ends in such a manner that only the short central portions thereof come into contact with the core.