Diseño y simulación de una máquina cosechadora de papas con tracción mixta.

Abstract

The survey of surface and agricultural production carried out by the Ministry of Agriculture and Livestock, found a decrease of 11.6% in relation to 2017, so it can be observed that agricultural production has decreased. If it is considered that the Ecuadorian highlands are mainly agricultural and have not developed economic growth due to the fact that technologies have not been implemented in the tuber harvesting process, which is currently done manually, the design of the proposed machine will allow extracting potatoes. using two types of traction mechanisms, the first with animal traction and the second with motorized traction, resulting in an economical and sustainable solution. The investigation began with the state of the art of existing potato harvesters in the market to later determine the type of critical soil to till and with this the technical specifications of the machine considering the user's work requirements. Through concurrent engineering, the functional structure of the machine was shortened and the best alternative for each function was evaluated. For the mechanical dimensioning it was derived from an iterative method and failure criteria. Finally, the machine was simulated in a CAD mechanical design software considering the maximum efforts at the critical points, it was verified that the safety factors are adequate for the design.