In Huang-Huai-Hai area,the large amount of maize straw cover resulted in increasing difficulties in winter wheat sowing,and an integrated machine was developed to pick up,crush and bury the corn straw at single operation to cope with this problem. The trace and phase position of the guideway centerline of spring-finger cylinder pickup device were determined based on the working principle and working process analysis of the typical spring-finger cylinder pickup device. A kinematic analysis on spring-finger w...