DISEÑO Y CONSTRUCCIÓN DE UNA TRITURADORA DE MATERIA VEGETAL

Abstract

In this work, it is presented a detailed explaination about the way to design a wood chipper schredder. In order to get this objective, it is used a mechanical design methodology that allows us to approach the problem from an integral point of view. I The starting point is the study of the necessity to build a wood chipper to take part in the compost production market in our country. This study includes an introduction to the composting basics, its benefits, and the machinery that is necessary to carry it out. This state-of-the-art investigation gives the basic information for a correct definition and approach of the design problem. As the problem is understood, the engineering specifications for the chipper are developed, beginning with the detection of the client needs, and continuing with a proposal of a machine concept. To carry out the engineering analysis of the concept, it is settled a hypothesis in which it is possible to calculate a static load that is equivalent to a dynamic load that impacts and fractures the tree trunk or branch; this idealization allows us to simplify the design of some of the components of the machine into a case of the beams theory. Where it is not possible to implement such hypothesis, the mechanical parts are calculated by using the theories of rigid body dynamics and the design of machine elements. After the engineering analysis, the shop drawings of the machine are plotted in order to manufacture it and test it on actual operation conditions. Of course, this stage of the process includes a complete study of the costs of raw materials, labor and the prototype production. The economical feasibility of the product is also briefly analized. This work finishes with the conclusions and recommendations about the project, were the strong and weak points of the design methodology that was used are set out. Additionally, the aspects of the process that must be paid attention to and improved by any person who is interested in continuing with the development of the wood chipper schreder are commented.