Mill housings for cluster mills
US5596899A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jul 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2203/187
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A two-part housing assembly for a cluster mill. The housing assembly has substantially the same size, form and structure as a monobloc housing, but is divided along a horizontal plane located at or close to its horizontal center line into upper and lower mill housings each provided with a roll cavity and a roll cluster therein. The gap between the work rolls of the roll clusters is adjusted by symmetrical equal and opposite movement of the upper and lower mill housings achieved by four identical screws, one located in each corner of the mill housing assembly. Each screw has two threaded portions of opposite hand, one threaded portion engaging a threaded nut of opposite hand non-rotatively mounted in a recess in the upper mill housing and the other threaded screw portion engaging a threaded nut of appropriate hand non-rotatively mounted in a recess in the lower mill housing. Each screw supports the upper and lower mill housings. A jack for each screw is provided in the mill base to support and rotate that screw. The upper and lower mill housings are adjustably prestressed together, at a spacing determined by the screws, by a pair of tie rods affixed to the piston of a hydraulic cyli…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.