Analysis of the influence of bearing seat clearance on axial force in Shaogang 3450mm plate rolling mill

摘要

Excessive axial force is an important problem affecting product quality in Shaogang 3450mm plate rolling mill. In order to solve this problem. In order to solve this problem, this paper analyzes the impact of bearing seat clearance on the axial force. Based on the actual measurement of the unit bearing seat clearance, the unit system dynamics model was established, and on this basis, the reaction force response was calculated and analyzed, and the influence of the clearance on the axial force was theoretically verified. At the same time, the clearance contact model between the bearing seat and the archway was established by ADAMS, and the relationship between the bearing seat clearance and the axial force of the unit was simulated and analyzed. On the basis of theoretical research, process improvement measures were proposed, which effectively reduced the axial force from about 5% of the rolling force to about 1.4%, and greatly reduced the thickness deviation of the rolled plate.