VARIABLE ROLL WIDTH TYPE ROLLING ROLL

摘要

The present invention provides a rolling-mill roll of a barrel-width adjustable type improved in strength by preventing stress concentration in a torque transmission structure for transmitting the torque from drive side roll to another roll. The connecting rod coaxially projected from the drive side arbor is inserted into the sleeve, and the rolls are mounted onto the circumferences of the connecting rod and the sleeve. The connecting rod and the sleeve are supported in a housing via bearings and are coupled with each other by a screw shaft mechanism so that the sleeve is axially movable to vary the barrel width. The complementary engagement between the spline or key for transmitting the torque of the arbor to the sleeve is made at a position offset outward from the axial center of the sleeve bearing so that the complementary engagement is not affected by the bending of the roll due to the rolling reaction and thus a stress concentration is prevented. <IMAGE>