Energy saving potato-digger machines

¹ Scientific Research Institute of Agriculture Mechanization, 41, Samarkand street, Gulbahor town, Yangiyol district, Tashkent region, 110800, Republic of Uzbekistan
² Urgench State University, 14, Kh. Alimdjan Street, Urgench, 220100, Uzbekistan

^* Corresponding author: yxushnud@mail.ru

Abstract

The article presents the results of theoretical and experimental research on the substantiation of the parameters of the working bodies of energy-saving potato diggers for irrigated lands in Uzbekistan. The developed design diagrams of energy-saving potato diggers and diagrams of their technological process with an indication of the main parameters are described. The rational parameters of the digging machines, which ensure the minimum energy consumption when digging potatoes, have been determined. The parameters of the supporting-clod-breaking device were optimized. The rational parameters of the ripper and the swathe were found. Comparative tests indicated an increase in the degree of soil separation in the summer and autumn periods, respectively, by 19.2-23.6% and 17.9-19.8%, an increase in the completeness of potato harvesting by 6.5-10.0% and 7.1- 8.9%, a decrease in the degree of damage to tubers by 8.4- 11.1% and 4.7-5.3%, an increase in the productivity of the unit by 25.0%, a decrease in labor costs by 60.0%, and operating costs for 31.5% when using an experimental potato-digger machine with the recommended parameters of the equip. The use of the recommended walk-behind tractor with an improved technology potato-digger reduces damage to tubers by 5-6%, increases productivity by 20%, reduces labor costs by 50%, and operating costs by 19%.