@conference{
author = "Radojević, Rade L. and Petrović, Dragan V. and Mileusnić, Zoran I. and Petrović, Srbobran and Đokić, Dragoslav",
year = "2023",
abstract = "This paper analyzes the problems related to the reconstruction of a semi-mounted
berry harvester into a self-propelled one specified for exploitation on smaller orchards. The
components of the self-propelled machine, their purpose and mutual functional connection are
described in details, which retained the principle of unilateral picking of half the row of bush
berries from its semi-mounted predecessor. Among the most important general design features,
the following stand out in particular: the drive of the harvester working components, which is
achieved by means of appropriate combinations of hydraulic and mechanical power transmissions,
which allows it to be highly adaptable to different working conditions on the terrain, and the
control device, which is designed to maintain the movement of the machine in the direction set
by the driver, without decreasing the safety and passability requirements of the machine itself.
In the technology of berry fruit production in the Republic of Serbia, the harvesting process is
still the basic limiting factor. Manual picking participates as much as 75% in total production
costs. The costs of mechanical harvesting are between 2.05 and 2.27 times lower in comparison
to manual picking, depending on whether the machine is a towed or self-propelled. The paper
also provides a comprehensive analysis of the energy parameters of work for both versions of
the harvester. The results indicate that power losses on rolling and slipping are lower in the
self-propelled version 10 and 40%, respectively, while in the semi-mounted version the power lost
on the climb is 60-70% lower compared to the self-propelled version. As the harvesting process
is still a limiting factor in berry fruit production, in addition to reducing costs by applying
mechanized solutions, one of the goals of the work is the optimization of applied technical
solutions for the same.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia",
journal = "The 6rd International Symposium on Agricultural Engineering, ISAE-2023, 19-21 October, Belgrade Serbia",
title = "Development of a self-propelled barries fruit harvester",
pages = "25",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6748"
}