Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/33405 |
Resumo: | 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. |
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Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principleMachine designAgricultural mechanizationFamily farmingProjeto da máquinaMecanização agrícolaAgricultura familiarMacaw (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.A macaúba (Acrocomia aculeata) é um produto da sociobiodiversidade brasileira e é uma excelente fonte de óleo para a indústria cosmética, de alimentos e de combustíveis. Um dos gargalos técnicos da produção dos frutos da macaúba é a colheita feita de forma manual com ferramentas rudimentares e no sistema extrativista, que tem dependência muito grande de mão de obra. Objetivou-se com o presente trabalho desenvolver o projeto informacional, conceitual e detalhado de um sistema semi-mecanizado de colheita que possa ser utilizado em condições adversas de relevo. Foi proposto o conceito de um mecanismo colhedor de macaúbas, de baixo custo, que funciona pelo princípio de vibrações mecânicas, e é capaz de trabalhar com eficiência em lavouras plantadas e maciços naturais. A partir de uma adaptação do método de Pahl e Beitz para desenvolvimento de projetos de máquinas, e a utilização do método de prototipagem de evolução, foram construídos protótipos de integração, que passaram por ensaio preliminar de campo. Foram realizadas algumas modificações em derriçadoras portáteis de café, que se constituíram em alterações no sistema de geração de sinais de vibração e foram transmitidos aos frutos de macaúba, na interface cabeçote/planta. Apenas um dos protótipos construídos foi considerado eficaz e adequado para realização posterior de avaliação de desempenho (protegida por meio de depósito de pedido de patente junto ao Instituto Nacional da Propriedade Industrial – INPI, sob o n.º BR 10 2017 010814 7). Para o projeto detalhado foram empregadas técnicas de CAD (Projeto Auxiliado por Computador). Posteriormente, foi possível observar a validação de eficiência da colheita dos frutos de macaúba pelo princípio de vibrações mecânicas. Nas condições em que ocorreram, os ensaios de campo demonstraram que a média da eficiência de colheita para o modelo proposto com varetas vibratórias foi de 97,4% e a média da capacidade de colheita foi de 566,91 kg h- 1.Universidade Estadual de Londrina2019-04-01T15:50:58Z2019-04-01T15:50:58Z2018-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGRUPIONI, 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.http://repositorio.ufla.br/jspui/handle/1/33405Semina: Ciências Agráriasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessGrupioni, Christina Maria de FreitasSantos, Fábio LúcioFernandes, Haroldo CarlosValente, Domingos Sarvio MagalhãesPinto, Francisco de Assis de Carvalhoeng2019-04-01T15:50:58Zoai:localhost:1/33405Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-04-01T15:50:58Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
title |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
spellingShingle |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle Grupioni, Christina Maria de Freitas Machine design Agricultural mechanization Family farming Projeto da máquina Mecanização agrícola Agricultura familiar |
title_short |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
title_full |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
title_fullStr |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
title_full_unstemmed |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
title_sort |
Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle |
author |
Grupioni, Christina Maria de Freitas |
author_facet |
Grupioni, Christina Maria de Freitas Santos, Fábio Lúcio Fernandes, Haroldo Carlos Valente, Domingos Sarvio Magalhães Pinto, Francisco de Assis de Carvalho |
author_role |
author |
author2 |
Santos, Fábio Lúcio Fernandes, Haroldo Carlos Valente, Domingos Sarvio Magalhães Pinto, Francisco de Assis de Carvalho |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Grupioni, Christina Maria de Freitas Santos, Fábio Lúcio Fernandes, Haroldo Carlos Valente, Domingos Sarvio Magalhães Pinto, Francisco de Assis de Carvalho |
dc.subject.por.fl_str_mv |
Machine design Agricultural mechanization Family farming Projeto da máquina Mecanização agrícola Agricultura familiar |
topic |
Machine design Agricultural mechanization Family farming Projeto da máquina Mecanização agrícola Agricultura familiar |
description |
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. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03 2019-04-01T15:50:58Z 2019-04-01T15:50:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
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. http://repositorio.ufla.br/jspui/handle/1/33405 |
identifier_str_mv |
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. |
url |
http://repositorio.ufla.br/jspui/handle/1/33405 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
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Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835095475683328 |