矮化密植红枣收获机捡拾装置的设计

Design of Dwarf and Close Planting Jujube Harvester Pickup Device

针对红枣人工捡拾劳动强度大、作业效率低、生产成本高等问题,设计了一种矮化密植红枣收获机捡拾装置。该装置与红枣收获机联合作业,能够实现红枣一次性捡拾收获。为此,介绍了捡拾装置的结构与工作原理,并对关键工作部件进行了设计。采用复数矢量法对捡拾机构进行运动学分析,确定了偏心轮、吊杆、连接杆等关键工作部件的结构参数。通过对捡拾拨杆进行运动分析,获得了工作过程中拨杆端点的运动方程,并确定了红枣抛送初速度与偏心轮转速之间的关系,为红枣收获机捡拾装置的试验研究提供了理论基础。

Dwarf and close planting jujube harvester pickup device was designed for the labor intensity and low efficiency of manual picking up .The joint operation of pickup device and harvester can both achieve jujube picking and harvesting one-time .Structure and working principle of pickup device were introduced , and key working parts were designed .Ki-nematics of pickup mechanism were analyzed using complex-number vector method , then structural parameters of eccen-tric, boom, connecting rods and other key working parts were determined .Motion equations of lever endpoint in the course of working were obtained by the motion analysis , and the relationship between throwing speed and eccentric rota-tional speed was determined , providing a theoretical basis for experimental study of jujube harvester pickup device .