基于ADAMS的4UD-600型马铃薯挖掘机振动机构的参数优化设计
Optimal design of the vibrational structure of 4UD-600 potato digger based on ADAMS

跟据振动减阻机理，对4UD-600型马铃薯挖掘机振动机构进行改进设计。在ADAMS软件中建立了4UD-600型马铃薯挖掘机振动机构的参数化模型，通过分析物料在分离筛筛面上的相对运动，在保证较高筛选效率的前提下，以生产率最高为优化目标对机构进行了优化设计，得到了机构最优参数组合：曲柄LOA=5.5 mm，摆臂LBD=570 mm，主筛摆连杆LEF=110 mm，连杆LJK=160 mm，曲柄转速nOA=4 666°·s-1。优化后物料沿筛面的平均移动速度从0.089 m·s-1提高到0.122 m·s-1，挖掘机生产率显著提高，理论的正确性在后续的实际改进设计中已得到验证。
According to the mechanism of turbulent drag reduction, improved the design of 4UD-600 potato digger. A parametric model for the vibrating structure of 4UD-600 potato digger was established using ADAMS software. After analyzing the relative motions of materials on separating screen surfaces, to achieve highest productivity, an optimization of this vibrating structure was performed, and resulted in optimal combination of parameters. The optimal combination of parameters were: the length of crank LOA=5.5 mm, the length of swing arm LBD=570 mm, the length of main screen pendulum rod LEF=110 mm, the length of connecting rod LJK=160 mm, the speed of crank nOA=4.666°·s-1. After this optimization, results showed that the average moving speed of materials along the screen surfaces was increased from 0.089 m·s-1 to 0.122 m·s-1, significantly improving the productivity of the excavator. Validity of the theory had further been verified in subsequently actual improvement design.