Authors

Abstract

Aiming at the problems of high skin-breaking rate and high impurity rate of sweet potato during harvesting operations, a low-damage fresh-eating sweet potato combine harvester based on a two-segment potato-soil separation device was designed by using a “d”-type elevator chain combined with a double-buffer clearing platform technology. The results show that the best working parameters of the harvester are a vibrating shaft frequency of 5.2 Hz, elevator chain speed of 0.37 m/s, and cleaning platform speed of 0.58 m/s, in which the sweet potato skin-breaking rate is 1.09% and the impurity rate is 1.90%, which is in line with standard.

Abstract in English

针对甘薯收获作业过程中存在甘薯破皮率高、含杂率高的问题，采用“d型升运链式薯土分离装置+双重缓冲清选平台”技术，设计了一种基于两段式薯土分离装置的低损鲜食甘薯联合收获机。结果表明，收获机最佳工作参数为振动轴频率5.2Hz、升运链速度0.37m/s、清选平台速度为0.58m/s，此时甘薯破皮率为1.09%、含杂率为1.90%，符合标准。