| Point at big problems of low efficient and high fatigue strength on domestic potato harvest depending on manual or small excavator, the 4U-1400 potato combine harvester was designed. This harvester is mainly composed by digging device, soil-potato separating device, stalks separation device, vertical lifting device, bagging device, transmission system, frame, running gear and so on. Therefore, the structure of this harvester is very compact. The key parameters of each device were determined though the kinematic analysis and experiments. The Solidworks software was used for drawing out the virtual sample machine and carried out the model validation. There was no interference between each component. This harvester could finish two rows potato digging, cleaning soil, stalks, weed and residual membrane, vertical lifting and bagging etc procedures at once. As a consequence, the technology problem of potatoes bagging is overcome, meanwhile, the productivity is increased. |