Method and device for changing rolls
AssigneeSMS Siemag Aktiengesellschaft
InventorGerhard Blecher
Life of this patent
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Abstract
The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.
Claims4
A method for changing a set of work rolls in a rolling stand, such as a roughing stand or a finishing stand for rolling plate, which comprises the following steps:
- supporting the used work rolls of the set of work rolls on each other;
- and then moving the used set of work rolls in the axial direction of the work rolls on the operating side of the rolling stand from a mill hall to a roll workshop by means of a locomotive, which is moved in a roll-changing pit, which connects the mill hall with the roll workshop;
- wherein, to allow the used set of work rolls to be moved out, platforms, which have guide rails on their upper side, are moved downward into a horizontal position on both upper edges of the roll-changing pit;
- and the used set of work rolls is connected by a connecting rod with the locomotive and is pulled out of the rolling stand over the guide rails.
Dependencies are inferred from the claim text.