Support Roll For A Rolling Mill

Abstract

Disclosed is a support roll ( 1 ) for a rolling mill, such as a plate rolling mill, flat rolling mill, or similar, comprising a jacket ( 2 ) and a roll shaft ( 3 ) which is embodied in several parts. The invention also relates to a method for producing a support roll ( 1 ).

1 . Support roll ( 1 ) for a rolling mill, such as a plate rolling mill, sheet rolling mill or the like, which consists of a shell ( 2 ) and a roll shaft/roll spindle ( 3 ), wherein the roll shaft/roll spindle ( 3 ) is constructed from a left half-journal ( 4 ) and a right half-journal ( 5 ). 
     
     
         2 . Support roll ( 1 ) in accordance with  claim 1 , wherein the roll shaft/roll spindle ( 3 ) is constructed from a left half-journal ( 4 ) and a right half-journal ( 5 ) with at least one bushing arranged between them. 
     
     
         3 . Support roll ( 1 ) in accordance with  claim 2 , wherein one of the journals ( 4 ,  5 ) is formed with at least one through bore ( 11 ) parallel to the axis. 
     
     
         4 . Support roll ( 1 ) in accordance with  claim 2 , wherein one of the journals ( 4 ,  5 ) is formed with a threaded bore ( 10 ). 
     
     
         5 . Support roll ( 1 ) in accordance with  claim 1 , wherein the interior of the shell ( 2 ) is cylindrically formed. 
     
     
         6 . Support roll ( 1 ) in accordance with  claim 1 , wherein the interior of the shell ( 2 ) is formed as a conical frustum. 
     
     
         7 . Support roll ( 1 ) in accordance with  claim 1 , wherein the shell ( 2 ) is made of a high-grade, cast and/or forged steel that has been quenched and tempered. 
     
     
         8 . Support roll ( 1 ) in accordance with  claim 1 , wherein the shell ( 2 ) is formed with a wear-resistant buildup weld on its outer circumferential surface. 
     
     
         9 . Support roll ( 1 ) in accordance with  claim 1 , wherein the shell ( 2 ) is formed with several barrel or shrink rings ( 16 ) on its outer circumferential surface. 
     
     
         10 . Support roll ( 1 ) in accordance with  claim 1 , wherein one end of the shell ( 2 ) is formed with a journal ( 12 ). 
     
     
         11 . Method for producing a support roll ( 1 ), especially a support roll ( 1 ) in accordance with  claim 1 , wherein the shell ( 1 ) is internally heated, a right journal ( 5 ) and a left journal ( 4 ) are inserted in the shell ( 1 ), and the shell ( 1 ) is then cooled. 
     
     
         12 . Method in accordance with  claim 11 , wherein the right journal ( 5 ) and the left journal ( 4 ) are pretensioned with respect to each other by at least one tie rod, pretensioning bolt or the like. 
     
     
         13 . Method in accordance with  claim 11 , wherein the tie rod, pretensioning bolt or the like is screwed into a threaded bore ( 10 ), which is formed in one of the two journals ( 4 ,  5 ). 
     
     
         14 . Method in accordance with  claim 11 , wherein at least one bushing is mounted inside the shell ( 2 ) between the journals ( 4 ,  5 ). 
     
     
         15 . Method in accordance with  claim 11 , wherein the outer surface of the shell ( 2 ) is provided with a wear-resistant buildup weld. 
     
     
         16 . Method in accordance with  claim 11 , wherein a stop edge ( 8 ,  9 ) of each journal ( 4 ,  5 ) is positioned against the end face ( 6 ,  7 ) of the shell ( 2 ).