Experimental Investigation of Plow-Chopping Unit

Volodymyr Bulgakov, Aivars Aboltins, Hristo Beloev, Volodymyr Nadykto, Volodymyr Kyurchev, Valerii Adamchuk and Viktor Kaminskiy
Additional contact information
Volodymyr Bulgakov: Department of Mechanics, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, 03041 Kyiv, Ukraine
Aivars Aboltins: Institute of Agricultural Machinery, Faculty of Engineering, Latvia University of Life Sciences and Technologies, LV-3001 Jelgava, Latvia
Hristo Beloev: Department of Agricultural Machinery, University of Ruse Angel Kanchev, 7017 Ruse, Bulgaria
Volodymyr Nadykto: Department of Machine-Using in Agriculture, Dmytro Motornyi Tavria State Agrotechnological University, 72312 Melitopol, Ukraine
Volodymyr Kyurchev: Department of Machine-Using in Agriculture, Dmytro Motornyi Tavria State Agrotechnological University, 72312 Melitopol, Ukraine
Valerii Adamchuk: National Scientific Centre, Institute of Mechanization and Electrification of Agriculture, UA08631 Kyiv, Ukraine
Viktor Kaminskiy: National Scientific Centre, Institute of Agriculture of NAAS of Ukraine, UA08162 Kyiv, Ukraine

Agriculture, 2021, vol. 11, issue 1, 1-14

Abstract: The article presents research results of a machine-tractor unit that performs two technological operations simultaneously: (i) chopping plant residues (sunflower stubble); (ii) covering the chopped stubble with the soil. The first operation is carried out with a front-mounted plant residues chopper, and the second one is carried out with a rear-mounted plough. The chopper’s working devices are rotated by the tractor’s front power take-off (PTO), which has two operating modes: 540 and 1000 rpm. It was determined that to reduce the dynamic load in the drive of the chopper’s plant residues working devices, to chop these residues qualitatively, and then to cover them with the soil, the tractor’s front PTO should be adjusted to a speed of 1000 rpm. With this mode of the chopper’s working device’s rotation, the difference in its vertical vibrations’ dispersion and the tractor front axle’s oscillations is insignificant. The variance of the plowing depth vibrations (1.44 cm 2 ), changing aperiodically in the frequency range of 0–2.5 Hz, is not accidentally less than the variance of irregularities vibrations of the longitudinal field profile (2.75 cm 2 ). The plough draft resistant oscillations of the plow-chopping unit had the least impaction at the plowing depth oscillations. The proof of this is the small value of the cross correlation function; for such oscillating processes as ‘plough draft resistance—plowing depth’, it was equal to 0.22, which is 3.4 times less than for oscillating processes ‘surface’s longitudinal profile—plowing depth’. The number of chopped particles less than 15 cm in length increased by 1.5 times, and the number of particles longer than 30 cm decreased by 3 times. With the complete incorporation of plant residues into the soil, their non-chopped part did not exceed 1%.

Keywords: front chopper; surface’s longitudinal profile; plough draft resistance; plowing depth (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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