Roll stand
AssigneeSMS group GmbH
InventorsRoland Will, Andrej Tucak
Life of this patent
Estimating the term…
Abstract
A roll stand (1) includes a roll (3), in particular a backup roll, mounted via oil film bearings (2). Each oil film bearing (2) has a sealing system for sealing the oil film bearing (2) to prevent oil leakage and a coolant ingress. The oil film bearing (2) is integrated into an oil-circulating lubrication system (4), which is fluidically connected to the oil film bearing (2) via oil feed lines (5) and an oil discharge line (6). A first sensor (11) is arranged in the oil feed line (5) and a second sensor (12) is arranged in the oil discharge line (6). The two sensors (11, 12) are designed to determine the coolant content in the relevant oil volume flow.
Claims16
A roll stand (1), comprising:
- a roll (3);
- an oil film bearing (2) by which the roll (3) is mounted, the oil film bearing (2) comprising a sealing system for sealing the oil film bearing (2) to prevent oil leakage and coolant ingress;
- an oil-circulating lubrication system (4) fluidically connected to the oil film bearing (2) via an oil feed line (5) and an oil discharge line (6);
- a first sensor (11) arranged in the oil feed line (5) and designed to determine a coolant content in an oil volume flow in the oil feed line (5);
- and
- a second sensor (12) arranged in the oil discharge line (6) and designed to determine a coolant content in an oil volume flow in the oil discharge line (6).
A method for detecting contamination of an oil caused by a coolant in an oil film bearing (2) of a roll stand (1),
- wherein the oil film bearing (2) comprises a sealing system for sealing the oil film bearing (2) to prevent oil leakage and coolant ingress and
- wherein an oil-circulating lubrication system (4) fluidically connects the oil film bearing (2) via an oil feed line (5) and an oil discharge line (6),
- the method comprising:
- determining, by a first sensor (11) arranged in the oil feed line (5), a coolant content in an oil volume flow in the oil feed line (5);
- and
- determining, by a second sensor (12) arranged in the oil discharge line (6), a coolant content in an oil volume flow in the oil discharge line (6).
A method for detecting losses of an oil in an oil film bearing (2) of a roll stand (1),
- wherein the oil film bearing (2) comprises a sealing system for sealing the oil film bearing (2) to prevent oil leakage and coolant ingress and
- wherein the oil film bearing (2) is integrated into an oil-circulating lubrication system (4),
- which comprises a storage tank (7) with a fill level sensor (9) and
- which is fluidically connected to the oil film bearing (2) via an oil feed line (5) and an oil discharge line (6),
- the method comprising:
- determining, by a first sensor (11) arranged in the oil feed line (5), a coolant content in an oil volume flow in the oil feed line (5);
- and
- determining, by a second sensor (12) arranged in the oil discharge line (6), a coolant content in an oil volume flow in the oil discharge line (6).
Dependencies are inferred from the claim text.