APPARATUS FOR PREVENTING SKEWING OF ROLL OF COGGING MILL Russian patent published in 2005 - IPC

FIELD: rolling equipment, namely apparatuses for mounting rolls of working stands of rolling mills.

SUBSTANCE: apparatus includes screw-down cylinders connected with chocks of roll; liquid distributor communicated with pressure source and with screw-down cylinders; leverage mechanism joined with chocks of roll and with movable member of liquid distributor. The last is throttling one. Leverage mechanism includes rigid link, lever and doubled slide. First slide is mounted with possibility of horizontal motion relative to foundation of rolling mill; second slide is mounted with possibility of vertical motion relative to first slide. Rigid link is joined with chocks of roll and with second slide through articulation joint. First slide through lever is kinematically joined with movable member of liquid distributor. Rigid link is in the form of triangle. Leverage mechanism and screw-down cylinders are connected with chocks of upper or lower roll. First slide includes in addition controlled check valves of screw-down cylinders and system for controlling them. Invention provides possibility for redistributing pressure between screw-down cylinders in proportion to shift of leverage mechanism that is to automatically prevent skewing of roll.

EFFECT: automatic prevention of roll skewing, enhanced quality of rolled products, improved operational properties of roll.

6 cl, 2 dwg