Design and realisation of a motorized beans shelling machine

Common beans ( Phaseolus vulgaris L.) are an essential staple crop widely grown across many developing nations. Recognizing the significant value and potential of this crop has led to the push for creating a mechanized bean shelling system as part of modern agricultural planning. This study focused on design and realisation of beans shelling machine. The machine was designed and realisation was achieved using appropriate engineering materials selected for various parts of the machine. This machine incorporated an air chamber system which was used in air production for waste disposal. Peeled beans was collected via a collecting vessel. Pulleys were used as speed reducers to transmit power and movement in order to enhance efficiency of the machine and the preservation of the good quality product. The machine performed well when it is motorised with a 2HP motor 1400rpm and a turning speed of 950rpm and average torque of 4.944Nm. Pulley groove selected at 206mm. we obtained for 92.7% beans peeling efficiency with a 630.32 kg/h of beans shelled.