Justification of technical parameters of planetary mechanism for mixing blade drive
Students Name: Korniichuk Rostyslav Serhiiovych
Qualification Level: magister
Speciality: Computer Engineering in Mechanical Engineering
Institute: Institute of Mechanical Engineering and Transport
Mode of Study: full
Academic Year: 2025-2026 н.р.
Language of Defence: ukrainian
Abstract: The paper considers modern technological machines for mixing various materials widely used in construction, food industry, pharmacology, paint and varnish production, chemical industry and biotechnology. Mixing is understood as a mechanical process of uniform distribution of components in the volume of material, which ensures obtaining a homogeneous mixture. An overview of the main types of mixers is provided: rotary, twin-shaft and planetary, along with their advantages and disadvantages. It has been established that planetary mixers provide high-quality mixing due to the simultaneous rotation of the blades around their own axis and the central shaft, which eliminates the formation of ‘dead zones’. The designs and technical characteristics of modern foreign planetary mixers are also described: Simem (Xentrix, Sun), Sicoma, Skako Apollo, Schlosser-Pfeiffer, Elba and Eirich, as well as Russian analogues - ‘Planetary type blade mixer’. A comparative analysis of their designs, mixing efficiency and reliability is carried out. The second chapter describes the design of the mixing blade drive using a planetary mechanism, which ensures complete coverage of the mixture volume and uniform mixing. The 2K-N kinematic scheme was selected, the rotation angles of the mechanism elements were determined, and the gear ratio and geometric parameters of the gear wheels were calculated. The third section is devoted to the design of individual mixer elements: calculation of axes, ensuring tightness and lubrication of the reducer. Design solutions have been developed that prevent oil from entering the working chamber and mixture particles from entering the reducer, ensuring reliable operation and easy access for maintenance. The work is of practical importance for the creation of an efficient, reliable and compact mixer with minimal use of foreign components, which is important in the context of political instability and sanctions. Key words: design, industrial mixing, mixer, planetary mechanism, fixed sun wheel, calculations..