Abstract
It is proved that high-quality potato harvesting is one of the most important technological operations that contributes to improving the safety of tubers during their storage. It is established that the digging working body on the potato harvester has low agrotechnical performance parameters, which directly affect the productivity, quality of harvested tubers, work and resistivity of the harvesting unit. A bar digging working body is proposed, the use of which allows to reduce the volume of soil supplied to elevators, which improves the separation of pile, and the tubers after the passage of the unit are not covered with soil coming off the conveyor. In addition, the rod working body allows the harvesting machine to work within the limits of agrotechnical requirements, eliminating damages and losses of tubers, improving the aggregate composition of the soil, as well as reducing its specific traction resistance and increasing productivity.
Highlights
There is a growing demand for high - quality potatoes-both for sale through the retail chain and for industrial processing
The essence of the proposed technology of potato harvesting is as follows: bar ploughshares are installed on the KTN-2B potato digger, instead of standard digging ploughshares [16], the design of which allows you to change the parameters of the incoming tuber layer and significantly reduce the volume of the pile with blocks and lumps falling on separating elevators (Fig. 1)
The results of experimental studies have shown that the digging working body can significantly reduce the total amount of pile fed to elevators, which significantly reduces the damage of potato tubers
Summary
There is a growing demand for high - quality potatoes-both for sale through the retail chain and for industrial processing. The energy and quality parameters of any technological operation are directly dependent on the design and technological parameters of technical means of its conducting and their working bodies, which makes their further theoretical and experimental improvement relevant [7, 8, 12,13,14,15, 18, 22, 24]. The disadvantages of the digging working bodies produced by the industry are low agrotechnical performance parameters, and the quality and quantity of harvested tubers, productivity, and specific resistance of the harvesting machine directly depend on them. Attempts to use active ploughshares, some of which have an adjustable oscillation frequency, do not give high results, which leads to the damage of tubers, an increase in energy consumption and the need to set the digging depth by 2-4 cm more than the depth of tubers [1, 20, 27, 28]
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