Hydraulický pohon tlačky u děrovacího stroje

Abstract

This thesis deals with a design of the electrohydraulic drive of pusher at piercing machine of tube-rolling mill. In the introduction of the work is description of tube-rolling mill with hot pilger mill and working principle of piercing steel billet on the cross-roll piercer. Two variants of electrohydraulic drive are made for assigned pusher. Diploma thesis contains necessary calculation for suggestion of drive of pusher. Complete solution of hydraulic circuit and specification of particular circuit components. A part of the diploma work is modular drawing of control unit and dispositional drawing of electrohydraulic drive of pusher.