Diseño mecánico de un banco de pruebas utilizando un software cad: motor banda – disco : Diseño mecánico de un banco de pruebas.

Abstract

This degree project was carried out based on design knowledge in Autodesk inventor, calculations of power transmission systems (belts and pulleys) and technical criteria in selection of materials for construction of the drive shaft and the disc, everything was designed so that future students who wish to implement a test bench motor band disc have the information of the elements necessary for the construction of the test bench.Based on an electrical analysis carried out in the degree work: " IMPLEMENTACIÓN DEL SISTEMA ELÉCTRICO PARA UN BANCO DE PRUEBAS: MOTOR BANDA – DISCO PARA EL LTI-ESFOT ELÉCTRICO " the motor to be used is determined, which is a three phase motor of 1HP that rotates at a speed of 3 460 (RPM). Based on calculations and later on catalogs, it was determined that the elements to be used would be 2 groove pulleys, 2 belts and 2 bearings, all these elements are from the manufacturer SKF. Once these elements were defined, the material for the drive shaft and the disc was selected, for which SAE 4140 carbon steel was used for the shaft and SAE 1020 for the disc. Then the 3D designs of the selected elements are drawn or downloaded to Autodesk Inventor software. The table on which the whole structure is going to be placed is designed, the table must have an adequate height of 100 cm since the whole bench was designed to be used and manipulated by people. Having all the elements in the CAD software, they are joined and then adjusted with screws, washers, bushings and nuts. The adjustments made are: between the two bearings and the table with screws, between the motor base and the table with screws, between the pulleys and the shafts with bushings and between the disc and the shaft with a screw. All bolts have their respective nuts and washers. Finally, a static load test is performed on the table to determine if it can support the weight of the test bench elements