Grinding device for rollers

Abstract

A grinding device for the surface treatment of rolls, for example of rolls for machines producing, finishing and/or processing webs, such as paper, cardboard or tissue machines, includes stationary components and mobile components which can be separated from each other. The stationary components include guide rails, which extend substantially in parallel to a roll axis of the roll to be treated and which are connected to a substructure. Thus, the stationary components, such as the guide rails, can remain at the place of use of the rolls, while the components that are mobile or can be transported can be easily separated from the stationary components and can be transported to other locations.

1 . A grinding device for the surface treatment of a roller for a machine for at least one of producing, finishing and treating fibrous material webs, the grinding device comprising:
 a plurality of stationary components including a plurality of guide rails connected to the substructure and extending essentially parallel to a roller axis of the roller to be treated; and   a plurality of mobile components which can be separated from said stationary components.   
     
     
         2 . The grinding device according to  claim 1 , wherein the grinding device is for the surface treatment of the roller for one of a paper, cardboard and tissue machine. 
     
     
         3 . The grinding device according to  claim 1 , wherein said plurality of guide rails are connected directly to the substructure. 
     
     
         4 . The grinding device according to  claim 1 , wherein said plurality of guide rails are connected to a plurality of carriers and said carriers are inserted into the substructure. 
     
     
         5 . The grinding device according to  claim 1 , wherein said plurality of guide rails are connected to a frame and said frame is inserted into the substructure. 
     
     
         6 . The grinding device according to  claim 1 , wherein the roller is arranged on a plurality of bearing blocks connected to the substructure. 
     
     
         7 . The grinding device according to  claim 6 , further comprising a passive insulation against excitation of vibrations by the substructure, wherein said passive insulation is at least one of a damping layer and a plurality of damping elements formed of a plurality of spring elements, said passive insulation being positioned at least one of between the substructure and said plurality of bearing blocks and between the substructure and said plurality of guide rails. 
     
     
         8 . The grinding device according to  claim 6 , wherein at least one of said bearing blocks and said guide rails further comprise a plurality of actuators for actively bringing about decoupling from the substructure, said plurality of actuators being open-loop and closed-loop controlled. 
     
     
         9 . The grinding device according to  claim 8 , wherein a plurality of bearing points of the roller in said bearing blocks are configured to be adjusted at least one of horizontally and vertically. 
     
     
         10 . The grinding device according to  claim 9 , wherein said plurality of mobile components including a longitudinal carriage movably guided on said plurality of guide rails and arranged to be at least one of moved and slid along an extension direction of said roller axis of the roller. 
     
     
         11 . The grinding device according to  claim 10 , said longitudinal carriage further comprising a plurality of bearings configured to interact with said guide rails. 
     
     
         12 . The grinding device according to  claim 11 , wherein said plurality of bearings are one of slide bearings and roller bearings forming one of a fixed bearing arrangement and a freely moving bearing arrangement, with a plurality of recirculating roller shoes. 
     
     
         13 . The grinding device according to  claim 12 , further comprising a transverse carriage arranged to be moved or slid on said longitudinal carriage, wherein a movement direction of said transverse carriage is oriented essentially perpendicular to a movement direction of said longitudinal carriage. 
     
     
         14 . The grinding device according to  claim 13 , wherein said transverse carriage is configured to be at least one of horizontally and vertically pivoted with respect to said longitudinal carriage. 
     
     
         15 . The grinding device according to  claim 14 , further comprising a rail bearing system formed between said longitudinal carriage and said transverse carriage. 
     
     
         16 . The grinding device according to  claim 15 , said rail bearing system further comprising a plurality of bearings engaged around said plurality of guide rails. 
     
     
         17 . The grinding device according to  claim 16 , wherein said transverse carriage is one of secured on and removable from said longitudinal carriage. 
     
     
         18 . The grinding device according to  claim 17 , further comprising a tool arranged on said transverse carriage. 
     
     
         19 . The grinding device according to  claim 18 , wherein said tool is one of a grinding disk, a belt grinder, a grooving device, a superfinishing device and a honing device. 
     
     
         20 . The grinding device according to  claim 19 , wherein said tool is configured to be operated with geometry control. 
     
     
         21 . The grinding device according to  claim 1 , further comprising a plurality of measuring devices for determining a position of the grinding device relative to the roller. 
     
     
         22 . The grinding device according to  claim 21 , wherein said plurality of measuring devices include at least two sensing devices for a reference object. 
     
     
         23 . The grinding device according to  claim 22 , wherein said at least two sensing devices are scanners. 
     
     
         24 . The grinding device according to  claim 23 , wherein said scanners are laser scanners. 
     
     
         25 . The grinding device according to  claim 24 , wherein said reference object is a stretched wire arranged essentially parallel to said roller axis of the roller, said stretched wire having a fixed, invariable geometric relationship with said roller axis. 
     
     
         26 . The grinding device according to  claim 25 , wherein said stretched wire is arranged to be sensed by said scanners. 
     
     
         27 . The grinding device according to  claim 26 , wherein said scanners are arranged on one of said longitudinal carriage and said transverse carriage. 
     
     
         28 . The grinding device according to  claim 27 , wherein said measuring devices include at least one inclination sensor for sensing an inclination of said transverse carriage relative to the substructure, said at least one inclination sensor being arranged on said transverse carriage. 
     
     
         29 . The grinding device according to  claim 28 , wherein said measuring devices include at least one measuring probe arranged on said transverse carriage and configured to at least one of sense a surface of the roller and measure a distance between said grinding device and said roller axis. 
     
     
         30 . The grinding device according to  claim 29 , further comprising at least one further measuring probe for sensing untrue running errors at a plurality of support points of the roller, said at least one further measuring probe being arranged opposite said at least one measuring probe with respect to said roller axis and on a rear side of the roller. 
     
     
         31 . The grinding device according to  claim 31 , further comprising a plurality of actuating devices configured to perform open-loop and closed-loop control of a position of said tool based on a plurality of measured values from said scanners, said inclination sensor and said at least one measuring probe. 
     
     
         32 . The grinding device according to  claim 31 , wherein said plurality of actuating devices are piezo-actuators. 
     
     
         33 . The grinding device according to  claim 32 , wherein said tool is configured to be pivoted with respect to said roller axis in a plane defined by said direction of movement of said transverse carriage and said direction of movement of said longitudinal carriage by at least one of said plurality of actuating devices. 
     
     
         34 . The grinding device according to  claim 27 , wherein said tool is configured to be pivoted with respect to said roller axis in a plane defined by said direction of movement of said transverse carriage and a vertical direction by at least one of said plurality of actuating devices. 
     
     
         35 . The grinding device according to  claim 34 , wherein said tool is configured to be adjusted with respect to said roller axis in said direction of movement of said transverse carriage by at least one of said plurality of actuating devices.