MECHANISM FOR FEEDING AND ROTATING IN MILL FOR COLD ROLLING OF TUBES Russian patent published in 2003 - IPC

FIELD: rolled tube production, namely improved mechanism for feeding and rotating for tube cold rolling mill. SUBSTANCE: mechanism includes feeding chuck having spindle performing reciprocation motion provided with cam clamp and thrust bearing assembly; planetary - crank converter of continuous rotation to intermittent rotation and crank drive for moving spindle by feed value. Connecting rod of crank drive for moving spindle is joined with thrust bearing assembly by means of double-arm lever with support joined through nut-screw pair with reduction gear and with electric motor. Feed value of spindle depends upon relation of arms of double-arm lever. In order to change feed value it is necessary to change relation of arms of double-arm lever by moving support of said lever with use of nut-screw pair. EFFECT: high-speed mill with enhanced efficiency, increased accuracy of adjustment of feed value, possibility for mechanizing process of changing feed value. 1 dwg