Modular rolling mill
View Patent ↗A modular rolling mill comprises a plurality of separate rolling units arranged along a mill pass line. Each rolling unit includes at least two pairs of work rolls defining oval and round roll passes and carried on roll shafts that are staggered 90° with respect to each other. The rolling units contain intermediate drive trains configured to connect the roll shafts to parallel input shafts projecting to a first side of the pass line from the respective rolling units. A single driven line shaft is parallel to and on the first side of the pass line. Output shafts are mechanically coupled to the line shaft by bevel gear sets. The output shafts project laterally from the line shaft towards the pass line and are connected by separable couplings to the input shafts of the rolling units.
1. A modular rolling mill, comprising:
a plurality of separate rolling units arranged along a mill pass line, each rolling unit having at least two pairs of work rolls carried on roll shafts, intermediate drive trains contained within said rolling units for mechanically coupling said roll shafts to input shafts, the input shafts of said rolling units being parallel to each other and projecting to a first side of said pass line from their respective rolling units;
a line shaft parallel to and on the first side of said pass line;
means for driving said line shaft;
parallel output shafts mechanically coupled by bevel gear sets to said line shaft, said output shafts projecting laterally from said line shaft towards said pass line; and
coupling means for connecting each of said output shafts to a respective one of said input shafts, said coupling means being separable to accommodate selective removal of said rolling units to a second side of said pass line opposite to said first side.
2. The modular rolling mill of claim 1 wherein said line shaft is subdivided into segments mechanically connected to said output shafts by said bevel gears sets, and further comprising clutches joining said line shaft segments, said clutches being alternatively adjustable to mechanically connect or disconnect the thus joined line shaft segments.
3. The modular rolling mill of claims 1 or 2 further comprising a network of tracks on the second side of said pass line for receiving and conveying rolling units removed from said pass line.
4. The modular rolling mill of claim 1 wherein said means for driving comprises a motor coupled directly to said line shaft.