Actual Problems in Machine Building 2018 Vol. 5 No. 3-4

Actual Problems in Machine Building. Vol. 5. N 3-4. 2018 Technological Equipment, Machining Attachments and Instruments ____________________________________________________________________ 74 THEORETICAL DETERMINATION OF TIME FOR POTATOES PEELING BY MOK MACHINES Kerzhencev V.A. , Ph.D. (Engineering), Associate Professor, e-mail: kerjencev46@ngs.ru Martynova T.G. , Ph.D. (Engineering), e-mail: tatyanamartynova1511@gmail.com Bezuglov A.E. , Student, e-mail: alexandrbezuglov96@mail.ru Zabrazhnov A.A. , Student, e-mail: zabragenov@mail.ru Novosibirsk State Technical University, 20, Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation Abstract The article discusses the determination issue of time required for peeling potato tuber from its jacket carried out mechanically by MOK machines. Factors influencing the peeling process’ duration by peeling (abrasive) surfaces were determined. Formulas that allow to make calculations based on an estimated tuber diameter, which is considered an arithmetic mean of all tubers’ diameters in a batch were developed. It has been found out that it is possible to use this parameter for calculating tubers peeling time. It has been demonstrated that the peeling time is correlated with the force pressing tubers to the abrasive surface and depends on the area of a tuber’s contact spot at the moment of application, as well as on operation body rotation frequency and other parameters. It has been shown that it is possible to vary the time calculation process in order to provide higher quality tuber peeling depending on their jackets state, as well as its impact on peeling capacity and power. Keywords potato peeling machine, operation camera, abrasive bowl, potato tuber, peeling time, capacity, power