Method for solving blocking problem of working roll flat head and main shaft flat head sleeve in roll changing process of CVC rolling mill

• Main Authors: YANG WENHAI, YU CHANGZHI
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention discloses a method for solving the problem of jamming of a working roll flat head and a main shaft flat head sleeve in a roll changing process of a CVC rolling mill, which comprises the following steps of: respectively arranging hydraulic control one-way valves on a cavity side and a rod side of a driving hydraulic cylinder of an axial follow-up part of a main transmission shaft, and independently controlling the hydraulic control one-way valves; when a working roll flat head and a main transmission shaft flat head sleeve are blocked in the working roll pushing process in the working roll replacing procedure of a rolling mill, a driving hydraulic cylinder cavity side oil way is communicated with an oil return oil way of a hydraulic system by controlling a driving valve of a hydraulic control one-way valve; therefore, the working roll and the main transmission shaft follow-up part move towards the rolling mill motor side along the axis of the working roll together, then the subsequent roll changi