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US 5,806,361 AGranted
Rolling-mill roll of barrel-width adjustable type
AssigneeNippon Steel Corporation
InventorsTakashi Kitamura, Tetsuhiko Kanda
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AssigneeNippon Steel Corporation
InventorsTakashi Kitamura, Tetsuhiko Kanda
Estimating the term…
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.
A rolling-mill roll of a barrel-width adjustable type comprising an arbor provided on a roll drive side, a connecting rod coaxially projected from the arbor, and a sleeve into which the connecting rod is inserted to be movable in the axiswise direction, all of which are supported in a bearing box via bearings, wherein two roll sections are mounted onto the outer circumferences of the arbor and the sleeve, respectively, to form two divided roll sections so that a distance between both the roll sections is adjustable by varying the relative axiswise positions of the sleeve and the arbor, characterized in that a torque transmission structure for transmitting the torque from the connecting rod to the sleeve is based on the complementary engagement between the outer circumference of the connecting rod and the inner circumference of the sleeve, and the axiswise position of engagement is located closer to an end portion of the roll than to a center of the bearing for supporting the outer circumference of the sleeve, so that a stress concentration is prevented from occuring during the rolling operation.
A rolling-mill roll of a barrel-width adjustable type forming two divided roll sections comprising two divided sleeve sections in the widthwise direction and inserted into an arbor as a common roll shaft to cause the sleeve sections to be movable thereon in the axiswise direction, all of which are mounted in a bearing box via bearings, wherein two roll sections are mounted onto the outer circumferences of the sleeve sections, respectively, so that a distance between the roll sections is adjustable by varying the relative axiswise positions of the sleeve sections and the arbor, characterized in that a torque transmission structure for transmitting the torque from the arbor to the sleeve is based on the complementary engagement between the outer circumference of the arbor and the inner circumference of the sleeve, and the axiswise position of the engagement is located closer to an end portion of the roll than to a center of the bearing for supporting the outer circumference of the sleeve so that a stress concentration is prevented from occurring during the rolling operation.
Dependencies are inferred from the claim text.