Planejamento de um sistema de manutenção preventiva em equipamentos transportadores de uma fábrica de extração de óleo de soja

Abstract

This work aimed to present the planning and structuring of a preventive maintenance system applied to belt and screw conveyors used in the soybean oil extraction processat na agroindustrial cooperative. The research sought to demonstrate the relevance of preventive maintenance as a strategic management tool, capable of ensuring operational continuity, reducing corrective costs, and increasing the reliability of critical plant equipment. The scientific rationale for the study was based on the fact that the performance and availability of conveyors are directly related to the overall efficiency of the production line, with planned maintenance being an essential element of reliability engineering. The methodology adopted was characterized as a descriptive and comparative study, developed from document analysis, direct observation and review of technical and normative literature. The maintenance plans recommended by the manufacturers were evaluated, as well as the routines employed in the cooperative, which allowed the proposition of a preventive model adjusted to the operational reality of the industry. The activities were structured in three time horizons covering daily inspections, periodic lubrication, retightening, scheduled replacements and complete overhauls of reducers and bearings. This approach can provide traceability, control and standardization of interventions, reducing the incidence of failures and unscheduled downtime. The results are expected to indicate that the systematic adherence to preventive maintenance routines will contribute to extending the lifespan of components, reducing failures in gearboxes and bearings, and increasing the reliability of conveyors - key factors for plant productivity and safety. The analysis demonstrated that the adoption of a well-structured preventive maintenance policy can significantly reduce downtime and costs associated with emergency corrective maintenance. It was concluded that the preventive maintenance plan developed for the cooperative's belt and screw conveyors can represent an industrial and scientific management tool, integrating mechanical engineering practices with principles of operational sustainability. The study showed that the application of technical standards and good maintenance practices is essential to optimize equipment reliability and ensure the competitiveness of soybean oil production, especially during periods of high demand. Thus, the research reinforced the strategic role of preventive maintenance as a fundamental pillar of productive efficiency, safety, and sustainability in the agribusiness industry.