US 6,203,668 B1Granted

Device for fastening a roll to a frame of a paper machine

AssigneeValmet Corporation

InventorsPekka Koivukunnas, Raimo Immonen

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Abstract

A device for fastening a roll to the frame construction in a paper machine, paper finishing machine, or equivalent, wherein the ends of the roll are provided with bearings. The bearing housings of the bearings, or fastening bases formed onto the bearing housings, are mounted against a back-up face formed on the frame construction so as to position the roll in its place on the machine frame. On the machine frame, fastening members are arranged to be displaceable in a direction substantially perpendicular to and against the back-up face formed on the frame construction and include flange portions, i.e., shoulders or equivalent formed pieces. Correspondingly, the bearing housings, or fastening bases arranged thereon, are provided with grooves corresponding to the shape of the flange portions of the fastening members. When the roll is installed in its place, the flange portions pass into the grooves in the bearing housings. Then, the fastening members tighten the bearing housings or the fastening bases, respectively, forcibly against the back-up faces on the frame construction.

Claims16

Dependent claims

In combination with a paper machine having a frame including back-up faces and a roll including ends provided with a respective bearing a device for fastening the roll to the frame, said device comprising

fastening members arranged on the frame, each of said fastening members including a flange portion and being displaceable in a direction substantially perpendicular to a respective one of said back-up faces,
bearing housings on which one of said respective bearings is mounted, respectively, each of said bearing housings including at least one groove that receives said flange portion of a respective one of said fastening members such that upon reception of said flange portion in said at lest one groove, said respective fastening member is displaced in direction substantially perpendicular to said respective back-up face such that said flange portion is displaced toward said respective back-up face and thereby tightens a respective one of said bearing housings against said respective back-up face,
displacement means coupled to each of said fastening members for displacing said fastening member in the substantially perpendicular direction toward said respective back-up face,
actuator means coupled to said fastening means for moving each of said fastening members in a direction away from said back-up face
two of said fastening members for each of said bearing housings, said fastening members having an aperture therein, and
a plate for connecting said fastening members, said plate extending through said apertures and having an aperture therein,
said actuator means comprising a shaft having a flange abutting against said bearing housing, said shaft extending through said aperture of said plate.

4 more elements

Dependencies are inferred from the claim text.