Speed and rotation variations in gathering coffee machine

Authors

  • Tiago de Oliveira Tavares Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal
  • Rouverson Pereira da Silva Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal
  • Matheus Anaan de Paula Borba Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal
  • Bruno Rocca de Oliveira Faculdade Doutor Francisco Maeda
  • Taynara Tuany Borges Valeriano Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal

DOI:

https://doi.org/10.14393/BJ-v36n1a2020-42194

Keywords:

Agricultural mechanization, Gathering coffee., Coffea arábica.

Abstract

The mechanized harvesting operation of coffee sweep from ground have a great importance, due the value of the coffee that was lost by the harvest process, as well as the breakdown of the cycle of pests that can damage the coffee. To change work settings can influence significantly the capacity of the gathering system. Due, the objective of this study was to evaluate the influence the speed of displacement and rotations of the components of gathering coffee machine in its performance. The experiment was carried out in the municipality of Presidente Olegário-MG on coffee plantations aged 10 to 11 years. The field, presenting an average of 990 kg ha-1 of coffee present in the soil after the machine harvest. The engine rotations of the tractor evaluated were 146.6, 162.3, 178.0, 193.7, and 209.4 rad.s-1 combined with the 1stA and 2ndA gears, resulting in different working speeds. The treatments were distributed in randomized blocks with five replicates. The variables analyzed were the gathering efficiency, cleaning efficiency, coffee losses, and percentage of mineral and vegetal impurities. It was concluded that the gathering efficiency was higher when working with 178.0 rad.s-1 at 1.26 km h-1, resulting in lower coffee losses in the operation, a preponderant factor in the study. On the other hand, the best cleaning efficiency of the machine was found when using 193.7 rad.s-1 and 1.37 km h-1.

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Published

2020-01-01

How to Cite

TAVARES, T. de O., DA SILVA, R.P., BORBA, M.A. de P., BRUNO ROCCA DE OLIVEIRA and VALERIANO, T.T.B., 2020. Speed and rotation variations in gathering coffee machine. Bioscience Journal [online], vol. 36, no. 1, pp. 61–67. [Accessed5 December 2022]. DOI 10.14393/BJ-v36n1a2020-42194. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/42194.

Issue

Section

Agricultural Sciences