Inovação sustentável: sistema de quebra de coco com solução mecânica segura e ergonômica utilizando materiais reaproveitados

Abstract

This work presents the development of a babassu coconut cutting machine aimed at improving the working conditions of coconut breakers, an activity traditionally characterized by high physical effort and accident risk. The project was conceived based on the principles of mechanical engineering, ergonomics, and sustainability, using recycled materials easily found in local workshops and scrapyards, such as automotive and metallic components, to ensure low cost and community replicability. The mechanical system of the machine consists of a rack-and-pinion mechanism coupled to an automotive steering sector, which converts the rotary motion of the lever into a linear displacement of the cutting blade, significantly reducing the operator’s physical effort. Poka-Yoke safety systems and adaptations to NR-12 and NR-17 standards were implemented to ensure safe and ergonomic operation. Performance tests indicated that the equipment can cut each fruit in approximately 10 seconds, representing a productivity increase of up to 85% compared to the manual method, while also providing greater comfort and operational safety. It is concluded that the developed prototype is technically viable, sustainable, and socially relevant, contributing to the enhancement of the babassu extractivist communities’ work and the modernization of the babassu production chain.