Apparatus in connection with a press roll and a press roll

Abstract

An apparatus in connection with a press roll which press roll comprises a rotating belt shell ( 1 ), a fixed advantageously non-rotatable support beam ( 2 ) axially extending through the belt shell and advantageously having a stub shaft at its each end, two belt-shell ends ( 3, 4 ) axially displaceable on the support beam, advantageously on each stub shaft, and fastening elements for fastening the edges on the side of each belt-shell end of the belt shell to each belt-shell end. The apparatus comprises a first support element ( 13 ), which is arranged movably to the support beam ( 2 ), most advantageously on its stub shaft, and supported by which support element ( 13 ) the belt-shell end ( 3, 4 ) is arranged bearing-mountedly, whereby the support element ( 13 ) and the support beam ( 2 ), most advantageously a stub shaft, are arranged to operate together as the moving devices of the axial displacement of at least one belt-shell end.

1 . An apparatus in connection with a press roll which press roll comprises a rotating belt shell ( 1 ), a fixed advantageously non-rotatable support beam ( 2 ) axially extending through the belt shell and advantageously having a stub shaft at its each end, two belt-shell ends ( 3 ,  4 ) axially displaceable on the support beam, advantageously on each stub shaft, and fastening elements for fastening the edges on the side of each belt-shell end of the belt shell to each belt-shell end, characterised in that the apparatus comprises a first support element ( 13 ) which is arranged movably on the support beam ( 2 ), most advantageously on its stub shaft, and resting on which support element ( 13 ) the belt shell ( 3 ,  4 ) is arranged bearing-mountedly, whereby the support element ( 13 ) and the support beam ( 2 ), most advantageously a stub shaft, are arranged to function together as the moving device of the axial displacement of at least one belt-shell end.  
   
   
       2 . An apparatus according to  claim 1 , characterised in that between the support element ( 13 ) and the support beam ( 2 ), or a part arranged on it, has been formed at least one chamber room ( 24 ,  24 ′;  25 ,  25 ′) which is affected using pressure medium so that the support element ( 13 ) is displaced in relation to the support beam ( 2 ).  
   
   
       3 . An apparatus according to  claim 1 , characterised in that said moving devices i.e. tightening and lateral-displacement devices of the belt shell are a part of the entity of the belt-shell end.  
   
   
       4 . An apparatus according to  claim 1 , characterised in the support element ( 13 ) having been arranged floatingly in relation to the support beam ( 2 ).  
   
   
       5 . An apparatus according to  claim 1 , characterised in the chamber room ( 24 ,  24 ′;  25 ,  25 ′) having been formed annular seen from the axial direction.  
   
   
       6 . An apparatus according to  claim 1 , characterised in that there is a moving device in question at each belt-shell end ( 3 ,  4 ).  
   
   
       7 . An apparatus according to  claim 1 , characterised in that at least a portion of the wall of the chamber room ( 24 ,  24 ′;  25 ,  25 ′) has been formed by the support element ( 13 ) or its portion which is affected using the pressure medium so that the support element moves in relation to the support beam ( 2 ).  
   
   
       8 . An apparatus according to  claim 1 , characterised in that the apparatus comprises means for applying an annular axial force effect to the support element ( 13 ).  
   
   
       9 . An apparatus according to  claim 1 , characterised in that two chamber rooms ( 24 ,  24 ′;  25 ,  25 ′) are formed which are affected by pressure medium.  
   
   
       10 . An apparatus according to  claim 1 , characterised in that the support beam ( 2 ) connects the moving mechanisms of the belt-shell ends ( 3 ,  4 ) to each other.  
   
   
       11 . An apparatus according to  claim 1 , characterised in that the support beam ( 2 ) and the support element ( 13 ) together constitute a cylinder-piston combination.  
   
   
       12 . An apparatus according to  claim 1 , characterised in that the support beam ( 2 ) functions as a piston for the moving mechanism.  
   
   
       13 . An apparatus according to  claim 1 , characterised in that the piston is one- or multi-part.  
   
   
       14 . An apparatus according to  claim 1 , characterised in that the piston or its portion has a protruding annular shoulder ( 19 ).  
   
   
       15 . An apparatus according to  claim 1 , characterised in that the piston is in position and the support ring ( 13 ) i.e. cylinder moves in relation to the piston.  
   
   
       16 . An apparatus according to  claim 1 , characterised in that the pressure-medium-operated moving mechanism of the belt shell ( 1 ) of the press roll is arranged at least in the axial direction central or non-central in relation to the surface fabric ( 1 ) and its bearing.  
   
   
       17 . An apparatus according to  claim 1 , characterised in that the axial motion of the moving mechanism at least at one end ( 3 ,  4 ), advantageously both ends, is around ±0-200 mm.  
   
   
       18 . An apparatus according to  claim 1 , characterised in that in the use situation the moving mechanism is used for tightening the belt shell ( 1 ).  
   
   
       19 . An apparatus according to  claim 1 , characterised in that the apparatus comprises at least one element ( 15 ,  16 ) for preventing the rotation of the support element ( 13 ).  
   
   
       20 . An apparatus according to  claim 19 , characterised in that the element ( 15 ,  16 ) comprises a channel for supplying lubricant.  
   
   
       21 . An apparatus according to  claim 1 , characterised in that one of the belt-shell ends ( 3 ,  4 ) is arrangeable to be locked in position and the devices of the other belt-shell end are arrangeable to adjust the tightness of the belt shell ( 1 ).  
   
   
       22 . A press roll, characterised in that it comprises an apparatus according to  claim 1.