Authors

Abstract

In order to meet the requirements of peanut pods cleaning by the pick-up peanut combine harvester, and enhance the processing ability of branches, leaves, broken stalks and hard fruit stalks of the cleaning system, a kind of sieve-roll combined peanut pods cleaning device was designed based on the analysis of material cleaning characteristics. It mainly includes key components, such as cross flow fan, vibrating screen and separation roller. The force and movement state of the picking peanut extraction on the sieve surface and the separation roller were analysed. Through field loading test and verification, when the vibration screen width is 1200 mm, the crank speed is 650 rpm, the cross flow fan speed is 920 rpm, the separation roll speed is 410 rpm, the separation roll gap is 3 mm, then the peanut pod containing impurities rate is 1.52% and the loss rate is 0.64%, which meets the national industry standards.

Abstract in Chinese

为了满足捡拾式花生联合收获机对花生荚果的清选要求，增强清选系统对枝叶、断杆和硬果梗的处理能力，在物料清选特性分析的基础上，设计了一种筛-辊组合式花生荚果清选装置，主要包括横流风机、振动筛、分离辊等关键部件。对花生摘果脱出物在筛面和分离辊上的受力及运动状态进行了分析.通过田间装机试验验证，当振动筛宽度为1200mm，曲柄转速为650r/min、横流风机转速为920r/min、分离辊转速为410r/min、分离辊间隙为3mm时，花生荚果的含杂率为1.52%，损失率为0.64%，满足国家行业标准要求