Method of and Device for Exchanging Sets of Rolls
AssigneeSMS Siemag Aktiengesellschaft
InventorHarald Rackel
Life of this patent
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Abstract
A method of and an installation for exchange of roll sets (5, 6) contemplate provision of a number of separate transversely displaceable carriages (9, 10, 11), whereby individual worn-out working roll sets (6) are displaced along a single connection track (14) by a single locomotive (21) in a roll workshop (20), and a new working roll set (6a) is displaced back to an installation position, and wherein during formation of a gap (12) in front of a rolling mill stand (2, 3, 4), a withdrawn backup roll set (5) is transported by a crane in the roll workshop and back.
Claims13
A method of exchanging roll sets (5, 6) in rolling mill stands (2, 3, 4) of a rolling mill train (1) with several rolling mill stands (2, 3, 4) which include respective backup and working roll sets (5, 6), by displacing a working roll set (6) or a backup roll set (5), which are supported on top of each other, in an axial direction, on an operator's side (1b), into a roll workshop (20) and subsequently displacing back and mounting new roll sets (5, 6),
- characterized in that
- on the operator's side, individual worn-out working roll sets (6) are brought on a number of separate transversely displaceable carriages (9, 10, 11) that corresponds to a number of the rolling mill stands (2, 3, 4), one after another along a single connection track (14a) by a single locomotive (21) into the roll workshop (21) and, therefrom, new working roll sets (6a) are displaced back and are set at exchange distances (2a, 3a, 4a) on respective transversely displaceable carriages (9, 10, 11) between the rolling mill stands (2, 3, 4), and in that after unblocking of the operator's side (1b) by the transversely displaceable carriages (9, 10, 11), after dismantling respective worn-out working roll sets (6), the worn-out backup roll sets (5) are withdrawn and are brought with a crane in the roll workshop (20), are serviced, are transported back, and are again mounted in corresponding rolling mill strands (2, 3, 4).
An installation for exchanging roll sets (5, 6) in rolling mill stands (2, 3, 4) of a rolling mill train (1) with several rolling mill stands (2;
- 3;
- 4) having respective backup and working roll sets (5, 6), with a drive for transverse dismantling or transverse installation of roll sets (5, 6), wherein parallel to a rolling direction (13), rails (14) for transversely displaceable carriages (9;
- 10;
- 11) in a foundation (15) and a connection track (14a) toward a roll workshop (20) are provided, and the transporting carriages are connected with a drive,
- characterized in that
- the transversely displaceable carriages (9, 10, 11) are displaceable along continuous rails (14) placed in the foundation (15) parallel to the rolling direction (13) at fixed spacings (16) between the rolling mill stands (2;
- 3;
- 4) which are controlled with pivotal intermediate plates (7a), and that only one connection track (14a) runs, transverse to the rails (14) in the roll workshop (20) and on which only one locomotive (21), to which a respective working roll set (6, 6a) is attachable or detachable, runs.
Dependencies are inferred from the claim text.