ASSEMBLY FOR AXIALLY FIXING CHOCK IN ROLLING ROLL JOURNAL Russian patent published in 2005 - IPC

FIELD: axial fixation of bearings and chocks in journals of rolling rolls of wide strip rolling mills.

SUBSTANCE: assembly includes chock supporting bearing unit, inner and outer lids provided with seals, mounted in journal of roll and secured to chock; spacing ring mounted in key of rolling roll, members for axially fixing chock mounted in annular turning of roll journal. Members for axially fixing chock are in the form of two cover plates with inner cylindrical ribs arranged diametrically opposite relative to vertical axis of chock in annular turning of roll journal. Cover plates are mounted with use of bolts with possibility of motion in outer end of spacing ring. Thickness of cover plates exceeds that of inner cylindrical ribs that is why stop cylindrical surfaces are formed. Said surfaces are joined at both sides of annular turning of roll journal with outer surface of journal. Inclined straight different-length slits are formed in cover plates symmetrically relative to vertical axis of chock. Said slits are inclined by different angles to horizontal axis of chock; lower slits are inclined by large angle and upper slits are inclined by small angle. Length values of chords in cover plates between crossing points of different radius circles passed from center arranged in roll axis with axes of slits along their whole length are the same and equal to distance between mounting bolts of cover plates in spacing ring. Countersunk recesses for bolt heads are formed in ends of slits in bolt mounting places on both planes of cover strip surface.

EFFECT: shortened duration of idle periods and of roll change periods, lowered consumption of rolls and bearings, enhanced quality of rolled strips, improved reliability of assembly for axially fixing bearing and efficiency of rolling mill.

6 dwg