Combined type rolling mill

Abstract

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 DEG 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 tothe 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.

Description

technical field [0001] This invention relates generally to rolling mills for the production of longer products such as rods and rods, and more particularly to providing an improved combination rolling mill. Background technique [0002] Block-type rolling mills are known, as disclosed, for example, in US Pat. These rolling mills are mainly used as finishing trains in wire rod rolling mills and are widely used around the world. Block mills consist of a series of rolling stands arranged sequentially to roll an alternating sequence of elliptical / circular channels, with the rolling axes of the circular rolling stands relative to the rolling axes of the elliptical rolling stands Staggered at 90° to roll the product without twisting. [0003] Typically, rolling stands with circular and elliptical rolling passages are staggered on opposite sides of the mill pass line and are mechanically coupled to corresponding parallel power shafts driven at different speeds by a common mill dr...

AI Technical Summary

Problems solved by technology

Although mechanically robust and advantageously flexible, such a combined setup is relatively complex and expensive to purchase and subsequently maintain compared to block mills

Images