Diseño y fabricación de una máquina desgranadora de fréjol seco para implementar en la Parroquia Pinllopata perteneciente al Cantón Pangua.

Abstract

This degree work focuses on the desing and manufacturing of a threshing machine for dry beans to be implemented in Pinllopata, Pangua canton in orden to improve the process of shelling dry beans; since in this area; most of people are engaged in the production of beans of “Canario” type, whose cultivated land extends to 150 has. Despite this fact, traditional procedures; as hiring farmers who hit the plants with a rod; are performed to collect the beans due to the lack of modernization in the harvest process. In order to make the best choice to solve the main function that is to get dry bean, the principles of the concurrent engineering were considered. This type of engineering is based on a methodology using the QFD (Quality Function deployment) matrix or quality house, in which, by means of a quantitative and qualitative analysis; a threshing machine of dry beans was selected. The machine works with a stationary diesel engine and a blade cylinder adapted in a model of worm screw. The outcomes collected from the machine verified the requirements of the sponsor and proper functioning of the machine reaching a maximum capacity of harvesting beans up to 20,38 qq/h when the dry beans are in their pod. If the harvest of dry beans is with the whole plant, the machine capacity reaches 1,30 qq/h. The capacity varies depending on the care and improvement of the “Canario” bean plant because it has more pods per plant. Finally, it is concluded that the machine is efficient and inexpensive compared with machines manufactured abroad. It is recommended to carry on a regular maintenance of the machine in order to extend its lifetime.