Diseño y construcción de una máquina desgranadora de maíz móvil para la unidad de apoyo en pastos y forrajes de la Estación Tunshi - ESPOCH

Abstract

In the Pasture and Forage Support Unit of Tunshi Station campus, the corn shelling process is carried out manually. It causes limitations in the time to obtain the corn grain and, in addition, causes injuries to the hands and back of the workers due to the position adopted to carry out this activity. Therefore, this curricular integration work aimed to carry out the “design and construction of a mobile corn shelling machine for the Pasture and Forage Support Unit of Tunshi – Espoch Station.” The methodology focused on the VDI 2221 standard, developed based on client requirements. The display of the house of quality was also used, and a selection of alternatives was developed using the morphological matrix. With this, the detailed design and necessary calculations for the components of this machine were carried out. It was determined that the shelling system would be shelling cubes with a length of 6 cm, operating through a power transmission system with a 5 HP diesel engine and type A pulleys. Once the machine was built, performance tests were carried out. As a result, the machine could shell 1/4 quintal of corn in approximately 1 minute, compared to manual shelling, which takes an average of 25 minutes. It was also determined that the machine has a shelling capacity of 14 quintals per hour (qq/h). In this context, it is concluded that Tunshi Experimental Station productivity increased significantly when performing this task with a single operator, and the remaining time is used for other activities