Roll-changing device for changing the working and/or intermediate rolls of a rolling mill stand

Abstract

A roll-changing device ( 1 ) for changing the working and/or intermediate rolls ( 2 ) of a rolling mill stand includes a roll-changing carriage ( 3 ), with which rolls ( 2 ) to be changed out or in can be transported. In order to further develop such a roll-changing device in such a way that it is possible to ensure simplified and safe loading and unloading of a roll-changing carriage, the roll-changing device ( 1 ) includes a cartridge ( 4 ) that can be detachably arranged in the roll-changing carriage ( 3 ). The cartridge ( 4 ) is provided with receiving spaces ( 5 ) for the rolls ( 2 ).

1 .- 10 . (canceled) 
     
     
         11 . A roll-changing device ( 1 ) for changing working and/or intermediate rolls ( 2 ) of a rolling mill stand, comprising:
 a roll-changing carriage ( 3 ), with which the rolls ( 2 ) to be changed out or in can be transported; and   a cartridge ( 4 ), comprising
 a base body ( 7 ) including receiving spaces ( 5 ) for the rolls ( 2 ), and 
 a crane crossbeam ( 8 ), which can be detachably connected to the base body ( 7 ), 
   wherein the cartridge ( 4 ) can be detachably arranged in the roll-changing carriage ( 3 ),   wherein the cartridge ( 4 ) is fitted with a load attachment ( 6 ) for engaging a crane hook.   
     
     
         12 . The roll-changing device according to  claim 11 ,
 wherein the receiving spaces ( 5 ) for the rolls ( 2 ) are arranged one above another.   
     
     
         13 . The roll-changing device according to  claim 11 ,
 wherein the crane crossbeam ( 8 ) is fitted with the load attachment ( 6 ) for engaging the crane hook.   
     
     
         14 . The roll-changing device according to  claim 11 ,
 wherein the crane crossbeam ( 8 ) surrounds the base body ( 7 ) at least on part of outer sides ( 9 ) of the base body ( 7 ) when the base body ( 7 ) and the crane crossbeam ( 8 ) are connected to one another.   
     
     
         15 . The roll-changing device according to  claim 14 ,
 wherein the crane crossbeam ( 8 ) includes a number of vertically extending columns ( 10 ,  11 ,  12 ).   
     
     
         16 . The roll-changing device according to  claim 15 ,
 wherein the crane crossbeam ( 8 ) has between four and eight vertically extending columns ( 10 ,  11 ,  12 ).   
     
     
         17 . The roll-changing device according to  claim 15 ,
 wherein the crane crossbeam ( 8 ) has six vertically extending columns ( 10 ,  11 ,  12 ).   
     
     
         18 . The roll-changing device according to  claim 15 ,
 wherein the base body ( 7 ) has a longitudinal extension (L) that corresponds to an axis of the rolls ( 2 ),   wherein at least one of the vertically extending columns ( 10 ,  12 ) is arranged in each axial end region ( 13 ,  14 ) of the base body ( 7 ) in relation to the longitudinal extension (L) when the base body ( 7 ) and the crane crossbeam ( 8 ) are connected to one another.   
     
     
         19 . A cold or hot flat rolling mill comprising the roll-changing device according to  claim 11 .