Diseño y construcción de un equipo motorreductor aplicando metodología QFD para la industria nacional

Abstract

This technical project aimed to design and build a geared motor unit applying the QFD methodology. After collecting information from several bibliographical references and applying surveys to personnel related to gear motor equipment, the main design parameters were established. They were prioritized through the corrected ordinal method of weighted criteria, thus obtaining a single solution in terms of materialization design and detail according to the requirements established in the user's voice. For the detailed design of the reducer assembly, the AGMA 6034 B92 and AGMA 6022 C93 standards were applied for the crown and the endless screw, respectively. For the detailed design of the shafts, the ASME B106.1M standard was applied. The rest of the mechanical elements were designed using the theory taught for the design of machine elements by well-known and widely used authors at the higher level of education. CAE computer-aided engineering was applied using the Ansys 2020 R1 software to validate the strength and deformation results obtained through traditional design methods in the different components of the gear motor equipment. A test bench capable of subjecting the geared motor unit to workloads was designed and built to verify its correct operation and its resistance and reliability. The optimal brake pressure was found for a working time of 8 hours per day is 20 psi. After carrying out the pertinent cost analysis, the possibility of competing with the local market products was identified, opening up future studies related to the production of motor-reducer equipment in the country. Therefore, it is advisable to continue studying the geared motor using different materials in construction, heat treatments, or manufacturing processes to reduce the cost of production.