Self-loading controlled crown roll
AssigneeBeloit Technologies, Inc.
InventorArnold J. Roerig
Life of this patent
Estimating the term…
Abstract
A press roll for forming a controlled press nip with an opposed roll, such as in a papermaking machine, including a rotatable roll shell with a support shaft extending axially through the roll shell and controllable hydrostatic support elements positioned between the roll shell and shaft for applying a controlled radial supporting force to the roll shell with the nip line of the roll shell forming a support plane with the axis of the shaft, and an end guide accommodating relative movement between the shaft and the roll shell in the support plane with the end guide including a V-shaped projection at each end of the shaft and on each side of the shaft, and adjustable blocks carried on the roll shell by self-aligning bearings slidable against the end guide on the shaft.
Claims15
A press roll forming a controlled press nip with an opposed roll comprising, in combination:
- a rotatable elongate tubular roll shell having an inner smooth support surface and having an outer press surface to form a press nip with an opposed roll with said press nip and an axis of the roll shell defining a support plane;
- a support shaft extending axially through the roll shell for contributing support for the roll shell in the support plane in the radial direction of the nip;
- a controllable hydrostatic roll shell support positioned between the roll shell and the shaft for applying a controlled radial supporting force to said inner support surface wherein the nip load on the shell is carried by the shaft;
- and end guide means between at least one end of the shaft and the end of the shell accommodating free relative movement between the roll shell and shaft in said support plane with said guide means having planar sliding surfaces on the shaft and on the roll shell extending at an angle to the support plane.
A press roll forming a controlled press nip with an opposed roll comprising, in combination:
- a rotatable elongate tubular roll shell having an inner smooth support surface and having an outer press surface to form a press nip with an opposed roll with said press nip and an axis of the roll shell defining a support plane;
- a support shaft extending axially through the roll shell for contributing support for the roll shell in the support plane in the radial direction of the nip;
- a controllable hydrostatic roll shell support positioned between the roll shell and the shaft for applying a controlled radial supporting force to said inner support surface wherein the nip load on the shell is carried by the shaft;
- end guide means between at least one end of the shaft and the end of the shell accommodating free relative movement between the roll shell and shaft in said support plane with said guide means having planar sliding surfaces on the shaft and on the roll shell extending at an angle to the support plane;
- and an annular bearing at an end of the roll shell and supportingly connected to said end guide means so that rotary movement of the roll shell is accommodated, as well as radial movement, in the support plane.
A press roll forming a controlled press nip with an opposed roll comprising, in combination:
- a rotatable elongate tubular roll shell having an inner smooth support surface and having an outer press surface to form a press nip with an opposed roll with said press nip and an axis of the roll shell defining a support plane;
- a support shaft extending axially through the roll shell for contributing support for the roll shell in the support plane in the radial direction of the nip;
- a controllable hydrostatic roll shell support positioned between the roll shell and the shaft for applying a controlled radial supporting force to said inner support surface wherein the nip load on the shell is carried by the shaft;
- vertically extending end guide means providing vertical V-shaped projections on each side of the support shaft with mating V-shaped recesses carried on the roll shell;
- and self-aligning bearings carried between the end of the roll shell and the end guide means.
Dependencies are inferred from the claim text.