The theoretical analysis and optimization of the cutting knife- grille pair parameters in the screws
St. Petersburg National Research University of Information Technologies, Mechanics and Optics, Institute of Refrigeration and Biotechnology, Department of Food Engineering and Automation, 9 Lomonosov St., 191002 St. Petersburg, ITMO University Russia; *Correspondence: firstname.lastname@example.org
We show how energy-force knife-grille pair parameters depend on their tightening torque which also indicate the node which is the most dynamically and thermally tensed. The research demonstrates that the temperature, at the junction of the knife-grille, varies in the 10°C, and therefore this is a significant factor in the rate increasing of the grids and knives deterioration. From the condition of the screw grille and the knife blade compatibility deformations, we are shown the analytical dependence between the structural and technological characteristics, which allows us to minimize the depreciation value of the grille and the knife, as well as to reduce the energy intensity of the grinding process. Key words: lattice, the cutter knife, friction, bending, wear, temperature, pressure, distortion, efficiency, performance, etc.
creates a significant stress concentration at the junction of the knife-grille, on the peripheral annular surface, terms of the way it is constructed and due to the under the influence of the pressure, the grille is bent outwardly with the screw body and the knife being flexed bulge inward. Thus, the knife, which leads to accelerated deterioration of both the knife and the grille as well as a rapid and premature blunting of the knife., while rotating