Estudo comparativo da substituição do acoplamento de engrenagens pelo acoplamento de lâminas

Abstract

This work is a case study of the replacement of the machine element used as a connecting component between a diesel internal combustion engine (MCP) and speed reducer (reverser) of the propulsion system of a Brazilian Navy patrol vessel – MB. Being a gear coupling (German-made) originally fitted to the vessel's propulsion system, which presented high costs for operation maintenance and repair, as well as the requirement of qualified personnel for maintenance. Calculations, analyses and study of the data obtained between the types of connecting elements were carried out considering the characteristics of the connection and transmission of the rotary movement of the motor-reverser assembly in order to characterize and classify the suitable blade coupling as a substitute element for the gear coupling. After the replacement, the importance of the relationship between material management and maintenance planning to minimize the costs of acquisition and maintenance of the motion transmission element became evidente. The improvement in the work of the service members responsible for the maintenance and operation of the vessel's propulsion system is also evident.