Some questions of the contact interaction theory in two-roll modules

Abstract

The study is devoted to the analysis of contact stresses distribution in a two-roll module. The results of the study of the theory of contact interaction in two-roll modules are presented: an analytical description of the curve shape of the roll contact and determination of the relationship between tangential and normal stresses. Mathematical models of the roll contact curves and the friction stress models in a generalized two-roll module are determined. The obtained models are general in the sense that they are applicable for partial cases of interaction in two-roll modules. Formulas are found for calculating the neutral angles of two-roll modules. Dependencies between the forces acting in the rolls and the stresses distributed under the influence of these forces are stated. It is revealed that these dependences do not change with a change in the angle of supply of the material layer to the line of centers and the angle of inclination of the upper roll relative to the vertical.