| 摘要 |
A rolling line for the stretch-reducing of tubes, has a plurality of rolling stands which are arranged closely one after the other. These rolling stands are driven by a group drive, whereby the rolling stands, or at least a part thereof, are divided into groups, the groups being defined between directly acting drive shafts (111). The stand locations lying between these drive shafts (111) are driven by way of differential gear stages (112), each combining two rotational speeds which are derived by way of gear wheel trains (113-116, 117-120) from the drive shafts (111). |
