Controlled deflection roll bearing pad
US5931770A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Aug 15, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G1/022
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A controlled deflection roll for a papermaking machine. The roll includes a roll shaft having a longitudinal axis, a roll shell surrounding the shaft, and a bearing pad assembly supported on the shaft to supportingly engage the shell and move the shell translationally relative to the shaft in a plane including the axis. In one embodiment, the bearing pad assembly includes a plurality of bearing pads. Each bearing pad is spaced apart in the cross-machine direction and has a contact surface engageable with the inner surface of the shell. The contact surface is in the shape of a parallelogram and defines therein at least one recess. The side edges of adjacent bearing pads are straight and parallel to each other and define gaps therebetween. The gaps do not extend along a plane which is perpendicular to the axis. In another embodiment, the bearing pad assembly includes at least one bearing pad having a contact surface and opposite edges. The contact surface has a contact surface portion engageable with the shell. The contact surface portion has a plurality of continuous contact surface portions extending between the opposite edges such that each of said continuous contact surface porti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.