Tubular roll for a paper machine or equivalent with glide bearings
AssigneeValmet Corporation
InventorsPekka Kivioja, Esa Salavamaki
Life of this patent
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AssigneeValmet Corporation
InventorsPekka Kivioja, Esa Salavamaki
Estimating the term…
A method for fitting a roll mantle of a tubular roll used in a paper machine or equivalent with glide bearings and a tubular roll. The roll mantle is supported on a stationary roll axle by hydraulic glide bearing elements acting upon the roll mantle and/or upon the roll ends. The bearing elements are loaded hydraulically by the pressure of a first pressure medium. The roll is loaded from outside radially in the direction of at least one plane, i.e. in a so-called principal loading direction. The roll mantle is supported on the roll axle by the glide bearing elements which act radially substantially in the principal loading direction in opposite directions and which are provided with a device for regulating the braking pressure provided by a second pressure medium, so that in the principal loading direction, the roll mantle is allowed to move over a certain distance. When the roll mantle approaches its preset extreme position in that direction, the movement of the roll mantle is braked and slowed down by the regulation device, and finally the movement is stopped in its extreme position by the glide bearing elements.
In a tubular roll for a paper machine comprising a stationary roll axle, a roll mantle, and glide bearing elements for supporting said roll mantle on said roll axle, said glide bearing elements acting on an inner face of said roll mantle or roll ends of said roll under hydraulic pressure provided by a first pressure medium, and said roll being loaded in a main loading plane, the improvement comprising:
Dependencies are inferred from the claim text.