The quality and energy efficiency of rototiller operation

Annals of Warsaw University of Life Sciences - SGGW
Agriculture No 66 (Agricultural and Forest Engineering) 2015: 5-20
(Ann. Warsaw Univ. of Life Sci. - SGGW, Agricult. 66, 2015)

The quality and energy efficiency of rototiller operation

STANISŁAW GACH, ALEKSANDER LISOWSKI
Department of Agricultural and Forest Engineering, Warsaw University of Life Sciences - SGGW

Abstract: The work presents theoretical correlations that influence the quality of work and energy efficiency of rototillers. It also discusses the most recent research results on the impact of working components, that is, the blades - in particular, their shape and dimensions - on the quality of work and energy efficiency. Research was conducted under laboratory conditions - in a soil bin - and under natural conditions, during additional tillage of soil in the field. In order to achieve good quality of rototiller work, it is necessary to get familiar with many aspects of impact of the rototiller units on the soil. This is significant due to agrotechnical reasons, since substantial crumbling of the soil does not lead to increased yield - sometimes, the effect is opposite: excessive crumbling leads to yield reduction. Research conducted has indicated that the best soil structure is achieved by cutting pieces of length of 15 to 25 cm with a blade 55-75 mm wide. During ro-totiller operation, most energy is consumed by discharging of soil pieces (30.5-72.4%). The disks with blades should be reset by the angle of 12-14° in order to ensure even torque distribution; however, resetting by angle above 30° eliminates problems associated with soil sticking to components.

Key words: soil cultivation, cultivating machines, work quality, energy efficiency

Streszczenie: Jakość i energetyka pracy glebogryzarek. W pracy dokonano przeglądu literatury w aspekcie zależności teoretycznych mających wpływ na jakość pracy i energochłonność glebogryzarek. Przedstawiono również wyniki najnowszych badań elementów roboczych, a więc noży, a w szczególności ich kształtu i wymiarów na jakość pracy i nakłady energetyczne. Badania te prowadzono w warunkach laboratoryjnych - w kanale glebowym, jak również w naturalnych - podczas doprawiania gleby w polu.

Please use the following format to cite the selected article:
GACH S., LISOWSKI A. The quality and energy efficiency of rototiller operation. Ann. Warsaw Univ. of Life Sci. - SGGW, Agricult. 66, 2015: 5-20

Authors’ address:
Stanisław Gach, Aleksander Lisowski
Wydział Inżynierii Produkcji SGGW
Katedra Maszyn Rolniczych i Leśnych
02-787 Warszawa, ul. Nowoursynowska 164
Poland
e-mail: stanislaw_gach@sggw.pl
aleksander_lisowski@sggw.pl