Generation of destructive loads in centrifugal-type milling machines

The research aimed the mathematical model of ultra-fine milling of solid materials having different physical and mechanical properties in centrifugal milling machines with differentially moving grinding bodies as bodies of revolution. The basic equations of motion are derived for the grinding bodies shaped at cylinders at contact with the material to be destroyed. The research used theory of machines and mechanisms, laws of theoretical mechanics, mathematical modeling and computation experiment. The framework is developed for the mathematical model for determining design and process variables of centrifugal milling machines with differentially moving grinding bodies as bodies of revolution. The kinematic diagram of interaction between the mill components and solid particles in the process of fine and ultra-fine milling is developed with regard to estimated duty parameters of the milling machine. The optimized control algorithm for ultra-fine dispersion in milling machines with differentially moving grinding bodies is implemented. Based on the integrated system of equations, an algorithm is composed to produce calculation formulas for centrifugal milling machine design and ultra-fine milling control for engineering materials having different physical and mechanical properties. The obtained mathematical modeling results seem to be of use in design of novel centrifugal milling machines and their duty optimization later on.

Frolov S. G., Usov G. A., Antropov L. A. Generation of destructive loads in centrifugal-type milling machines. MIAB. Mining Inf. Anal. Bull. 2021;(11-1):179—189. [In Russ]. DOI: 10.25018/0236_1493_2021_111_0_179.

Frolov S. G.¹, Cand. Sci. (Eng.), Associate Professor, Pro-Rector;
Usov G. A.¹, Cand. Sci. (Eng.), Associate Professor
Antropov L. A.¹, Cand. Sci. (Eng.), Associate Professor
¹ Ural State Mining University, Yekaterinburg, Russia.

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