Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/33405
Title: Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle
Keywords: Machine design
Agricultural mechanization
Family farming
Projeto da máquina
Mecanização agrícola
Agricultura familiar
Issue Date: Mar-2018
Publisher: Universidade Estadual de Londrina
Citation: GRUPIONI, C. M. de F. et al. Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle. Semina: Ciências Agrárias, Londrina, v. 39, n. 2, p. 497-510, mar./abr. 2018.
Abstract: Macaw (Acrocomia aculeata) is a product of Brazilian socio-biodiversity and is an excellent source of oil for the cosmetics, food and fuel industry. One of the technical bottlenecks of macaw fruit production is the manual harvesting with rudimentary tools and the extractive system, which has a very large dependence on labor. The objective of this work was to develop the informational and conceptual design of a semi-mechanized harvesting system that can be used in adverse conditions of relief, also directed to the needs of family farmers. In this work the concept of a low cost macaw harvester is proposed, which works by the principle of mechanical vibrations, and is able to work efficiently in planted and natural plantations. From an adaptation of the Pahl and Beitz method for the development of machine designs, and the use of the evolution prototyping method, integration prototypes were constructed, which underwent a preliminary field test. Some modifications were made in portable coffee breakers, which constituted changes in the vibration signal generation system that were transmitted to macaw fruits at the head / plant interface. Only one of the built prototypes was considered effective and suitable for subsequent performance (product under patent registration). For the detailed design, CAD (Computer Aided Design) techniques were employed. Later, it was possible to observe the validation of efficiency of the macaw fruit harvest by the principle of mechanical vibrations. Under field conditions, field trials demonstrated that the average harvest efficiency for the proposed model with vibrating rods was 97.4% and the average harvesting capacity was 566.91 kg h-1.
URI: http://repositorio.ufla.br/jspui/handle/1/33405
Appears in Collections:DEG - Artigos publicados em periódicos



This item is licensed under a Creative Commons License Creative Commons