Rolling mill drive shaft arrangement for helical and die rolling line - having pinion stand shafts connected to work rolls by spindle and universal couplings

摘要

A rolling mill comprises a working stand with rolls arranged at a preset feed angle and a pinion stand which is connected with the working stand rolls via respective spindles and couplings. The shafts of the spindles are positioned so as to give the same angle of obliquity in all the spindle couplings and the axes of the output shafts of the pinion stand being equidistant from the axis of rolling. A formula is provided to determine the relationship of the pinion stand with the working stand. Mill is used for helical rolling of solids of revolution, e.g. a ball rolling mill, and die rolling. The equality of angles in all the spindle couplings provides uniform dynamic and kinematic characteristics for all the rolls. This results in a redn. in axial and tangential sliding of metal with respect to the rolls.