Analysis of design, noise and vibration of shredding machinery of Lechuguilla Ixtle

Abstract

The purpose of this study is to analyze the main components of a typical Lechuguilla Ixtle shredder machine, present in most of the ejidos dedicated to this activity in the northeast of Mexico, and to determine the opportunities for redesign its main parts, also the sound and vibration levels for evaluate their magnitude and determine the severity and impact. To achieve this objective, the DFX methodology was applied to Lechuguilla Ixtle shredder machine knowing the main parts that are susceptible to redesign, this typical machine was also compared against a bench test, carried out in a workshop with a lower power motor, with which were made tests for noise and vibration, in both cases the analyzes are perform out with the same intention of achieving an improvement in its efficiency. The results of the DFX methodology, as opportunities for redesign are: the safety of operation, the input and output mechanisms, speed working when defibrating two Cogollos, lightening the structure, motor capacity depending on the design of the defibration roller, and the form of maintenance and inspection. Finally, in the analysis of noise and vibrations, there are opportunities for improvement in the design of the machinery drum, placing a guard (cover) that helps to reduce noise levels, and reviewing the alignment of the axes the machinery so as not generate vibration outside the allowable ranges.