Научные публикации

Justification of cultivator-fertiliser configuration scheme

Acta Technologica Agriculturae 3
Nitra, Slovaca Universitas Agriculturae Nitriae, 2024, pp. 150–156
A possible way to increase the operating speed and field capacity of a cultivator-fertiliser is to modify its configuration scheme. According to our hypothesis, placing the fertiliser hopper directly on the tractor frame could reduce the traction resistance of the cultivator-fertiliser and consequently increase its operating speed and field capacity. Validating this hypothesis requires a comparative evaluation of the existing configuration schemes for cultivator-fertilisers.

However, there are currently no such comprehensive studies available. This research aims to develop a mathematical model for conducting a comparative theoretical evaluation of various configuration schemes for cultivator-fertilisers. The development of this model incorporated principles from classical and agricultural mechanics. We developed a mathematical model and conducted a theoretical evaluation of existing configuration schemes for cultivator-fertilisers, such as mounting the hopper on a separate trailed chassis, mounting the hopper and tillage working bodies on one frame, and mounting the hopper directly on the tractor frame.

The working width of the cultivator-fertiliser was constant and amounted to 6.2 m. The effective engine power of the tractor was taken to be 220 × 103 W.

It was found that placing the fertiliser hopper on the tractor frame maximises the field capacity to 3.9 ha∙h-1. The increase in field capacity was 8.9–16.0%. In this case, the fertiliser hopper volume should be 1.89 m3 and travel speed 8.45 km∙h-1.

Conclusion

  1. A mathematical model was developed to conduct a comparative theoretical evaluation of various configuration schemes of cultivator-fertilisers, with the field capacity per hour of shift time as the optimisation criterion.
  2. Configuration scheme 3, where the fertiliser hopper is mounted on the tractor frame, provides the maximum field capacity of CSH = 3.90 ha∙h-1 when operated with a tractor with an effective engine power of Ne = 220 · 103 W.
  3. Compared to the most common configuration schemes, the increase in field capacity per shift was 8.9–16.0%.
  4. To achieve the declared field capacity, the main parameters and the operational speed mode of the cultivator-fertiliser should have the following values: working width W = 6.2 m; fertiliser hopper volume V(F = 2) = 1.87 m3; speed v = 8.45 km∙h-1.
  5. The aim of the research has been achieved. The obtained research results will be used in the design of the cultivator-fertiliser to the tractor with an effective engine power Ne = 220 · 103 W.
This research has been funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. AP19679555).
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2025-12-15 17:19 AP19679555 Грант на удобритель