ABSTRACT

 This project is about the develop and evaluate the grinding Machine performance suitable for bush mango (Irvingia gabonensis) nuts. To improve or develop a local technology in processing industry. History and journals on how the concept of grinding machine started, modem technologies used in manufacturing process. Also, during the course of this project, a working principle was analyzed to ensure a smooth operation ofthe machine for optimum performance and easy maintenance of tire grinding machine, the following factors given by Starkey (1988) was taken into serious consideration; Simplicity of design to meet the required standard and specifications like size, weight, input, the power required. In selecting materials for the design, the following points were considered; The availability ofthe materials, The ability ofthe materials to withstand service conditions, The physical, chemical and mechanical properties of the material, The overall cost of both the material and processes involved. The belt which is the transmission element transmit motion ofthe electric motor to the grinder, in selecting the transmission element the following was considered; the distance between the shafts, Shaft layout, It can be easily installed and removed, the operation of the belt and pulley is quiet, Selection of the belt mechanism. The belt drive used in this design is V-belt (a 0900). It transmit great amount ofpower, the two pulleys are very near each other. The belt drive used in this design is V-belt (a 0900). It transmit great amount ofpower, the two pulleys are very near each other. The velocity ratio ofthe. two pulleys. V ,R. = diameter of the driven pulley DIVIDED BY Diameter ofthe driver pulley Where; diameter of the driven pulley = 15.50cm diameter of the driver pulley = 4.90cm. From equation 1, V. R. = 15.50/4.90, V. R. = 3.1633. Therefore,V. R. = 3.1. This impliesthat the velocity ratio between the two pulleys is 3:1, it means that the driver pulley revolves three times while the driven pulley revolves once. In carrying out this project, care was taken on the design concept to meet the required specification. Calculations were done to determine the required efficiency ofthe machine. The component for fabricating the machines is the spark ignition engine, the grinder, the belt system & the framework. Testing was carried out to ensure a complete quality control and assurance which can be affordable in any domestic, commercial and industrial requirement.