Diseño y construcción de una máquina limpiadora de tunas para el Sector Agricultor.

Abstract

This technological proposal for the farming area is based on the design and the construction1 of a cleaner machine of prickly pears, which detaches the thorns of the prickly pear in an efficient and safe way with a capacity to clean 2000 prickly pears/h. The bibliographical study about the cleaning process for the prickly pear; revealed that this procedure is carried out manually in Totoras, belonging to Tungurahua province. For this reason, it was conducted a research on the morphology of the prickly pear in order to be able to implement a type of mechanical cleaning. In order to accomplish an optimum mechanical design, the methodology presented by Carlos Riba; was taken as a starting point. In this methodology; the author emphasizes design phases such as: analysis, synthesis, simulation, evaluation, and decision, where the concurrent design with the quality function QFD (Quality Function Deployment) is applied, so, it was selected the best alternative for its construction. The mechanical and electrical elements of the machine were designed according to basic engineering principles to be subsequently validated by using simulation software such as ANSYS (Swanson Analysis Systems) and SAP (Solution for Structural Analysis) 2000. Process flowcharts for the construction and assembly were created .Also; the surface quality of the prickly pear was tested, ensuring that there is not any morphological change in its physical properties. The capacity of the machine is more than 2000 prickly pears/h depending on the size of the prickly pear, this, accomplishes the stated objectives. It is suggested to follow the recommendations of functionality and maintenance of the machine to extent its lifetime.