Variable-crown roll loaded by means of shoes
US5897476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1995 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G1/022
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A variable-crown roll including a stationary roll axle, a tubular roll mantle rotatably mounted by its ends on the roll axle by end bearings and hydraulic loading shoes arranged between the roll mantle and the roll axle. The loading shoes act upon an inner face of the roll mantle in a direction toward a nip defined in part by the roll, are supported on the roll axle and are loaded by a hydraulic pressure medium. The nip pressure is profiled in the axial direction of the roll by regulating the pressure of the pressure medium passed into the loading shoes. The roll mantle is made of a fiber-reinforced composite material so that the stability of shape of the roll mantle in the direction of the circumference is good, i.e., it maintains its shape, and the rigidity in the axial direction is low, i.e., it is profitable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.