Optimización del apero bifuncional del motocultor YTO-DF15L aplicando la norma ISO 25119 que permita el mejoramiento de rendimiento, ergonomía y seguridad para el MAG de Chimborazo.

Abstract

The objetive of this study was to optimize the performance, ergonomics, and safety of a bifunctional tool for a YTO-DF15L tiller that was designed and constructed by Jonnathan Camacho and Edwin Vera in the Automotive Engineering School of the mechanical Engineering Faculty in 2017. Having made the prototype and carried out field experiments, it was chown that it was not as efficient as it was expected, and there were other issues related to the bifunctional tool construction. Improving the bifunctional tool design and construction for soil tillage in ridges complying with the requirements in the safety standard ISO 25119 will improve the performance of soil tillage and optimize time and resources. With information, recommendations, requests from beneficiary farmers and staff of the Ministry of Agriculture and Livestock, and ISO 25119, the tool was redesigned to assess efficienty, ergonomics, and safety. When redesigning it, CAD (Solidworks) was used to determine its magnitudes, and CAE (Ansys Workbench) was used for the simulation analysis. The statistical study was done considering consumed energy when tilling soil in the province of Chimborazo. Samples of the soil characteristics were taken using equipment and tolos to determine the depth of tillage and mechanical feature of the materials to simulate Von Mises strees, total deformation, and safety factors enabling the prototype validation under field and laboratory conditions. The project aims to optimize the tilling tool prototype that has two tilling axis with two harrows each one and a furrower; a new tool that has a tilling axis with four discs and a tilling axis with four harrows working together.