Affiliation
a National University of Food Technologies
b GEA Food Solutions Ukraine
c Cherkasy State Technological University
Copyright ©Nekoz et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0. (
http://creativecommons.org/licenses/by/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license.
Abstract
Cutter assemblies operate under stressful conditions: the knives are subjected to high dynamic loads, the cutter shaft rotates at a frequency of 5–100 s-1, the electric driving motor of the cutter shaft overcomes high starting moments, the bed is subjected to significant static and dynamic loads, the food raw materials and humid atmospheric air in the production room is corrosive to the structural elements, etc. Under the influence of these factors, the cutter assemblies break down, which causes unregulated pauses in food raw materials processing and also requires high expenses for equipment repair. The aim of the paper was to study the durability of the main cutter assemblies and to establish its main determining factors. The presented numerical values of durability of cutter assemblies have been obtained as a result of the planned, warranty and post-warranty practical maintenance of cutters by the engineering team of GEA FOOD SOLUTIONS UKRAINE, LLC, the mechanical supervisor staff of Cherkassk Food Company, LLC and also as a result of scientific research of the processes that provide the operation of these machines and that were carried out at the Cherkassy State Technological University (the Ukraine). The components that operate under the most stressful conditions are knives, a cutter shaft and its bearing assemblies, and the electric driving motor of the cutter shaft. At the same time, the durability of most cutter assemblies is limited by the quality of operation of the cutter head and the durability of the knives. The expenses for the repair or replacement of cutter assemblies can amount to tens of thousands of euros (not including the losses caused by equipment downtime). By applying the appropriate technical solutions and cutter system operating rules, it is possible to significantly improve the durability of a cutter and reduce these expenses.
Keywords
Cutter,
durability,
repair,
knives,
fatigue strength,
improvement
REFERENCES
- Vasilevskiy O.M., Solov'ev O.V, and Trifonova D.O. Mashiny periodicheskogo deystviya dlya prigotovleniya farsha [Mincemeat batch machines]. Meat technology, 2007, vol 53, no. 5, pp. 42–46. (In Russ.).
- Maksimov D.A andYakushev A.O. Konstruktsii sovremennykh kutterov [Constructions of modern cutters]. Meat technology, 2010, vol. 93, no. 9, pp. 20–24. (In Russ.).
- Haack W., Schnäckel W., and Wilke J. Bearbeitungsvorgänge im Kutter-Konstruktive Voraussetzungen für qualitative hochwertige Fleischwaren. Fleischwirtschaft, 1999, no 4, pp. 36–40.
- Dolata W. and Rywotycki R. The optimal design of knives of bowl cutters. Journal of Food Technology, 2001, no. 2, pp. 87–94.
- Hammer G.F. and Stoyanov S. Kuttermesser-unterschiedliche anscliff- und gleitwinkel. Mittteilungsblatt fleischforschung Kulmbach, 2010, no. 49, pp. 183–195.
- Schnackel W., Ehrle E., and Haack O. Gelochte messer mindern spunnung. Ermittlung der messerbelastung des kutterprozessesbei der herstellung von feinbrat. Fleischwirtschaft, 2004, no. 1, pp. 51–56.
- Markus L.I., Shatalov A.N., Anan'ev R.A., and Smirnov A.B. Komp'yuternoe modelirovanie prichin avariynoy polomki nozhey vysokoskorostnykh kutterov [Computer modeling of the causes of emergency breakage of knives of high-speed cutters]. Meat Industry, 2010, no. 8, pp. 19–21. (In Russ.).
- Markus L.I., Shatalov A.N., and Burkin V.S. Metallograficheskie issledovaniya prichin avariynoy polomki nozhey vysokoskorostnykh kutterov [Metallographic studies of the causes of emergency breakage of knives of high-speed cutters]. Meat Industry, 2010, no. 9, pp. 42–45. (In Russ.).
- Martin Moser. Ermudungsbruch von Fleischhackmessern (Kuttermesser). Germany, 2010. Accessed: http://martin-moeser.de/Veroeffentlichungen/Bruch_Kuttermesser.pdf.
- Hammer G. and Stoyanov S. Uber das Kuttern von Bruhwurstbrat. Mitteilungsblatt der Fleischforschung Kulmbach, 2008, no. 47, rr. 243–251.
- Schnäckel W., Ehrle E, and Haack O. Gelochte Messer mindern Spannung. Die Fleischwirtschaft, 2004, no. 1, pp. 51–55.
- Hammer G.F. and Stoyanov S. Kuttern mit zwei Messern und Kutterleistung. Bundesforschungsanstalt fur Ernahrung und Lebensmittel. Jahresbericht, Karlsruhe, 2007, no. 1, pp. 24–26.
- Dolata W. Bewertung der technologischen Arbeitsqualität von Kuttermesser. 2. Messer mit Schneidkante in Gestalt des Abschnittes einerlogarithmischen Spirale. Die Fleischwirtschaft, 78-1998.-no. 12, 1242–1244.
- Dolata W. Bewertung der technologischen Arbeitsqualität von Kuttermesser. 3. Vergleichende Bewertungvon Messern mit unterschiedlich gestalteten Schneidkanten. Die Fleischwirtschaft, 1999, vol. 79, no. 5, pp. 94–97.
- Batrachenko O.V. Vplyv konstruktyvnykh parametriv nozhiv kutera na chastity yikh vlasnykh kolyvanʹ [Effect of constructive parameters of cutter knives on the frequencies of their own oscillations]. Vinnytsia: Vinnytsia National Agrarian University Publ., 2015, no. 1, pp. 122 - 128. (In Ukr.).
