Projeto de um braço telescópico para implementação em uma estrutura cantiléver

Abstract

The purpose of this work is to present the design of a telescopic arm intended to be attached to a conventional cantilever, providing ease in the removal of materials such as bars and tubes, especially in situations where the only viable means of using the cantilever is through overhead cranes. The project includes calculations for sizing the geared assemblies, transmission chains, as well as the acting forces and torques necessary to ensure its operation. Structural validations were performed through Finite Element Method (FEM) simulations and also through practical tests conducted with the construction of a prototype. The analysis conducted through FEM confirmed the strength of the device, where, under a critical load of 1500 kg, the telescopic arm showed a displacement of 1.79 mm and a stress of 236 MPa, demonstrating to be below the yield limit of the steels used. The construction of the prototype allowed the evaluation of the device's functionality in a practical setting, revealing all the challenges in the project's fabrication. It also served as confirmation, demonstrating its actual operation and effectiveness, thereby establishing its feasibility for replication throughout the rest of the cantilever structure. [resumo fornecido pelo autor]