2D analytical model for evaluation of the forces in the three point hitch mechanism

Year 2020, Volume: 26 Issue: 3, 271 - 281, 04.09.2020

Vera Cerović , Dragan Milković Grbović Aleksandar Dragan Petrović , Vojislav Simonović

https://doi.org/10.15832/ankutbd.493339

Cited By: 1

Abstract

Abstract

Large investments, research efforts and time have been allocated till nowadays for innovation of agricultural tractors and machinery, with the primary aim to increase their productivity, reliability, durability, as well as the environmentally friendly, safe and easy usage. Following this general trend, present work is focused on theoretical analysis of the forces acting on the links of the three-point hitch mechanism. The simulation algorithm and computer code have been developed for calculation of draft forces by two methods (following ASAE D497.4 standard and Goryachkin approach), depending on the three point linkage geometry and mouldboard technical characteristics, and calculation of forces acting on lower and upper links of three-point hitch mechanism. Calculated forces values, based on ASAE draft, exposes smaller differences compared to experimental values, while for the Goryachkin method improvement is possible by entering experimental values for soil resistance coefficient k and coefficient of dynamic resistance ε, as we did in this study performing measurements on the aggregate comprehending tractor IMT 539 (IMT Belgrade, Serbia) and two furrow  moldboard plough PTO 2.25 (OLT, Osijek, Croatia).

Keywords

Three hitch point, Tractor, Draft, Link forces

References

• Arizton Advistory & Intelligence (2018). Tractor Market – Global Outlook and Forecast 2018-2023, Retrieved in October, 16, 2018 from https://www.arizton.com/market-reports/global-tractor-market-analysis .
• ASAE (2003). Standard D497.4 Agricultural Machinery Management Data, St. Joseph, Michigen, USA.
• Bernacki H, Haman J (1967). Grundlagen der Bodenbearbeitung und Pflugbau, Berlin VEB Verlang Technik, Berlin.
• Bernacki H, Haman J, Kanafojski Cz (1972). Agricultural machines: theory and construction. Scientific Publications Foreign Cooperation Center of the Central Institute for Scientific, Technical and Economic Information, Warsaw Poland.
• Cerović V, Milković D, Grbović A, Radulović S, Tanasković J (2018). Measurement of the stress state ın the lower lınk of the three-poınt hıtch mechanısm. In: Proceedings of International Conference of Experimental and Numerical Investigations and New Technologies, 04-06 July, Zlatibor , Serbia.
• Čupera J, Bauer F, Severa L, Tatíček M (2011). Analysis of force effects measured in the tractor three-point linkage. Research Agricultural Engineering, 57(3): 79-87.
• Dalmiş S İ, Tezcan O, Eruslu Ö S (2017). Fatigue Life Enhancement of Three Point Hitch System Brackets in the Garden Series Tractors. Journal of Agricultural Sciences, 23(2): 185-194.
• Fröba N (1995). Benötigte Traktor Motorleistung bei landwirtschaftlichen Arbeiten. KTBL Arbeitsblatt Nr. 0255 in Landtechnik 50(5): 277-282
• Горячкин В П (1968). Сабрание сочинений, 2-e изд. Москва, Колос, т.2.-456 с.
• Haines B W (1925). Studies in the physical properties of soils: I. Mechanical properties concerned in cultivation. The Journal of Agricultural Science 15(2): 178-200.
• Martinov M, Marković D (2002). Mašine i oruđa za obradu zemljišta. Fakultet tehničkih nauka u Novom Sadu, Novi Sad.
• McLaughlin N B, Drury C F, Reynolds W D, Yang X M, Li Y X, Welacky T W, Stewart G (2008). Energy inputs for conservation and conventional primary tillage implements in a clay loam soil. Transaction of the ASABE 51(4): 1153-1163.
• Mileusnić Z, Petrović D, Miodragović R, Dimitrijević A (2010). The influence of exploitation conditions on the tractor reliability and lifetime. Agricultural Engineering 1: 59-67.
• Musil Jan, Červinka J (2007). Measuring of pulling resistance in machinery with passive working organs. Research Argicultural Engineering 53 (2): 47-53.
• Plouffe C, McLaughlin N B, Tessier S, Laguë C (1995). Energy requirements and depth stability of two different moldboard plow bottoms in a heavy clay soil. Canadian Agricultural Engineering, 37 (4): 279-285.
• Poničan J, Jech J, Angelovič M, Žitňak M (2004). Vplyv predsejbovej prípravy pôdy na jej vlastnosti ovplyvňujúce pestovanie koreňovej zeleniny v podmienkach precízneho poľnohospodárstva. Acta tehnologica agriculturae 1: 7-10.
• Roy W Morling (1979). Agricultural Tractor Hitches – Analysis of Design Requirements. American Society of Agricultural Engineers.
• Sarah K Lowder, Jakob Skoet, Terri Raney (2016). The Number, Size, and Distribution of Farms, Smallholder Farms, and Family Farms Worldwide. World Development 87: 16-29
• Silverfrost FTN95 Plato IDE. Retrieved in November, 26, 2018 from https://www.silverfrost.com/11/ftn95/ftn95_fortran_95_for_windows.aspx.
• Skalweit H (1952). Ǚber die bei der Tierhaltung von Schlepperanbaugeräten auftretenden Kräfte. Grundlagen der Landtechnik, 3:109-118.
• Wilkinson R H, Braunbeck O A (1977). Elements of Agricultural Machinery. Vol. 1, FAO Agricultural Services Bulletin, Rome, Italy.