Diseño de un sistema de anclaje para un tractor con malacate.
This project deals with the design of a winch sprag for the Spider tractor developed at tha National College of Agricultural Engineering in an attempt to provide a cheap source of mechanical power for small farmers of developing countries. Basic sprag design aims at abtaining high pull forces from relatively low mass machines. An attempt was made to create a perfectly rough interfase at the sprag thus maximising the draught force required for soil failure. The position of the sprag was determined by considering longitudinal stabilitj. The experimental results show that soil failure may occur at a lower value of draught than predicted by means of Reece's Fundamental soil Mechanics equation. A simple explanation is that the soil forming the interfase has been disturbed during the first stage of sprag penetration. l-lowever. high pulls were achieved with the sprag utilizing the perfectly rough interface theory.
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Instituto Colombiano Agropecuario
1978
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Subjects: | Maquinaria y equipo agrícola - N20, Equipo, Tractores, Tecnología apropiada, Transversal, |
Online Access: | http://hdl.handle.net/20.500.12324/35598 |
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dig-bac-20.500.12324-355982022-04-07T19:16:11Z Diseño de un sistema de anclaje para un tractor con malacate. Rincón C., Carlos J. Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal This project deals with the design of a winch sprag for the Spider tractor developed at tha National College of Agricultural Engineering in an attempt to provide a cheap source of mechanical power for small farmers of developing countries. Basic sprag design aims at abtaining high pull forces from relatively low mass machines. An attempt was made to create a perfectly rough interfase at the sprag thus maximising the draught force required for soil failure. The position of the sprag was determined by considering longitudinal stabilitj. The experimental results show that soil failure may occur at a lower value of draught than predicted by means of Reece's Fundamental soil Mechanics equation. A simple explanation is that the soil forming the interfase has been disturbed during the first stage of sprag penetration. l-lowever. high pulls were achieved with the sprag utilizing the perfectly rough interface theory. En este trabajo se diseñó un sistema de anclaje para un tractor con malacate desarrollado en el National College of Agricultural Engineering (Inglaterra) con el fin de proporcionar una fuente barata de potencia a los pequeños agricultores de países en desarrollo. En diseño de anclajes se pretende obtener altas fuerzas de tiro utilizando máquinas relativamente livianas. Mediante el diseño propuesto se originó una interfase perfectamente rugosa en Ia espuela, maximizando así la fuerza de tiro requerida para falla del suelo. La posición de la espuela se determinó considerando la estabilidad longitudinal del tractor. Los resultados experimentales muestran que el suelo puede fallar bajo esfuerzos inferiores a los teóricos calculados según la ecuación de Reece. La explicación más sencilla es que el suelo atrapado para formar la interfase ha sido alterado durante la penetración de la espuela. Sin embargo, fue posible obtener altos valores de la fuerza de tiro utilizando la teoría de interfase perfectamente rugosa. 2019-11-03T01:56:44Z 2019-11-03T01:56:44Z 1978 article Artículo científico http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article https://purl.org/redcol/resource_type/ART http://purl.org/coar/version/c_970fb48d4fbd8a85 0018-894 http://hdl.handle.net/20.500.12324/35598 2482 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa Revista ICA 13 3 617 623 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Acceso a texto completo info:eu-repo/semantics/openAccess application/pdf application/pdf Colombia Instituto Colombiano Agropecuario Bogotá (Colombia) Revista ICA; v. 13 (3); 1978 |
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Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal |
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Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal Rincón C., Carlos J. Diseño de un sistema de anclaje para un tractor con malacate. |
description |
This project deals with the design of a winch sprag for the Spider tractor developed at tha National College of Agricultural Engineering in an attempt to provide a cheap source of mechanical power for small farmers of developing countries. Basic sprag design aims at abtaining high pull forces from relatively low mass machines. An attempt was made to create a perfectly rough interfase at the sprag thus maximising the draught force required for soil failure. The position of the sprag was determined by considering longitudinal stabilitj. The experimental results show that soil failure may occur at a lower value of draught than predicted by means of Reece's Fundamental soil Mechanics equation. A simple explanation is that the soil forming the interfase has been disturbed during the first stage of sprag penetration. l-lowever. high pulls were achieved with the sprag utilizing the perfectly rough interface theory. |
format |
article |
topic_facet |
Maquinaria y equipo agrícola - N20 Equipo Tractores Tecnología apropiada Transversal |
author |
Rincón C., Carlos J. |
author_facet |
Rincón C., Carlos J. |
author_sort |
Rincón C., Carlos J. |
title |
Diseño de un sistema de anclaje para un tractor con malacate. |
title_short |
Diseño de un sistema de anclaje para un tractor con malacate. |
title_full |
Diseño de un sistema de anclaje para un tractor con malacate. |
title_fullStr |
Diseño de un sistema de anclaje para un tractor con malacate. |
title_full_unstemmed |
Diseño de un sistema de anclaje para un tractor con malacate. |
title_sort |
diseño de un sistema de anclaje para un tractor con malacate. |
publisher |
Instituto Colombiano Agropecuario |
publishDate |
1978 |
url |
http://hdl.handle.net/20.500.12324/35598 |
work_keys_str_mv |
AT rinconccarlosj disenodeunsistemadeanclajeparauntractorconmalacate |
_version_ |
1756053129797828609 |