Experimental Investigation of Plow-Chopping Unit

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 soil. first operation is carried out front-mounted chopper, and second one rear-mounted plough. chopper’s working devices are rotated by tractor’s front power take-off (PTO), which has operating modes: 540 1000 rpm. It was determined to reduce dynamic load in drive devices, chop these qualitatively, then cover them soil, PTO should be adjusted speed With this mode device’s rotation, difference its vertical vibrations’ dispersion tractor axle’s oscillations insignificant. variance plowing depth vibrations (1.44 cm2), changing aperiodically frequency range 0–2.5 Hz, not accidentally less than irregularities longitudinal field profile (2.75 cm2). plough draft resistant plow-chopping had least impaction at oscillations. proof small value cross correlation function; for such oscillating processes as ‘plough resistance—plowing depth’, it equal 0.22, 3.4 times ‘surface’s profile—plowing depth’. number particles 15 cm length increased 1.5 times, longer 30 decreased 3 times. complete incorporation into their non-chopped part did exceed 1%.