Diseño y construcción de un módulo para el montaje y desmontaje del rodamiento de rodillos a rótula 22208 E para el laboratorio de mantenimiento correctivo de la Facultad de Mecánica

Abstract

This Curricular Integration Project aims to design and construct a module for assembling and disassembling a spherical roller bearing, specifically the 22208 E model, for the Corrective Maintenance Laboratory of the Faculty of Mechanical Engineering. This technical project includes the module's design, load calculations, selection of materials, and techniques for bearing assembly and disassembly. The QFD methodology was used for module construction. It involves gathering customer requirements prior to design and determining the necessary parameters for its correct functioning, ensuring the selection of the best alternative before construction. For the assembly and disassembly module, each element was individually designed. The internal diameter of the 22208 E bearing served as a reference for different types of shafts. The module was divided into various systems, including the modular structure, clamping system, shafts, hexagonal body, foldable components, and workbench structure according to the INEN 1641 standard. Two materials were used for construction: ASTM A36 steel for the modular design, workbench, and hexagonal body, and AISI 4130 transmission steel for the shafts and adjustment lever. Assembly was carried out through electric welding. In conclusion, the QFD methodology allowed for identifying the best design alternative before module construction, ensuring an organized and systematic approach. The assembly and disassembly practice for the 22208 E spherical roller bearing was conducted using the method of reducing internal radial clearance. The tests yielded a pre-assembly internal radial clearance of 0.025 mm, which was reduced to 0.020 mm after assembly.