Análise estrutural dos cubos das rodas dos atrelados : Caso de Estudo - MPDC

Abstract

This report aims to carry out a structural analysis of trailer wheel hubs, taking into counts the frequency rate of breakage of the union bolts between the hub and the wheel rim, and the loss of working capacity of trailer wheel hub bearings during transport of ore. Thus, the aim was to understand why and how the failure of the pins and bearings of the cube. This type of occurrence requires the trailers to stop for a long time in order to be able to do the problem solving. This occurs during ore handling operations, in which the trailer is loaded by two ore tubs weighing 25000 kg each, making a route from the bunkers to the ship's loading dock, so there are situations several that contribute to and lead to the failure of the wheel hub bolts and bearings. By such problem, this work has as main objective to understand the main causes that cause successive failures in the trailers' wheel hubs, indicating the best way to reduce it and avoid equipment unavailability. Based on the structural analysis carried out in the trailers' wheel hubs, it was possible to show that the studs and bearings resist load requests. In the face of any study, it is possible to understand that the state of the road and the type of maintenance used are one of the main reasons for the occurrence of successive failures in the cubes of the wheels. to avoid the occurrence of these failures, the ideal is to improve the type of maintenance, that is, obey a weekly preventive maintenance plan, place locks on the nuts of the studs to prevent self-loosening, check stud tightening torque and status check trailer wheel hub covers.