Modular rolling mill

Abstract

A combination rolling mill includes a plurality of separate rolling units arranged along a mill pass line. Each rolling unit comprises at least two pairs of work rolls defining elliptical and circular rolling channels and supported on roll axes staggered at 90° relative to each other. The rolling units comprise an intermediate drive system configured to connect the roller shafts to parallel input shafts protruding from the respective rolling unit towards the first side of the pass line. A single transmission power axis is parallel to the roll line and on a first side of the roll line. The output shaft is mechanically coupled to the power shaft by a bevel gear set. An output shaft protrudes laterally from the power shaft roll line and is connected to the input shaft of the rolling unit by a separable coupling.

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