4U-1400型马铃薯联合收获机的设计

针对国内马铃薯收获依靠人工或小型挖掘机效率低、劳动强度大等问题，设计了4U-1400型马铃薯联合收获机。收获机主要由挖掘装置、土薯分离装置、茎秆分离装置、垂直提升装置、装袋装置、传动系统、机架以及行走装置等部分组成，结构紧凑。通过运动学分析和试验，确定了各装置的关键参数。运用Solidworks软件绘制虚拟样机，进行模型验证，各零部件之间不存在干涉现象。该机可一次性完成2行马铃薯的挖掘、土薯分离、薯秧、杂草和残膜分离、垂直提升以及装袋等工序，克服了马铃薯收获机装袋技术难题，提高了生产效率。

Design on the 4U-1400 potato combine harvester

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.