内容：
针对贵州丘陵山地小地块移栽作业特点和需要,依托2ZBZ-2A型自走式半自动移栽机,设计改进了一种通过凸轮摆杆机构结合拉线控制的鸭嘴栽植器结构。通过建立栽植器凸轮摆杆机构数学模型,搭建了凸轮摆杆机构主要结构参数与鸭嘴开合规律间的关系。基于对栽植器栽植轨迹特点和投苗时序的分析,采用盘式凸轮零部件生成器对所涉及的凸轮摆杆机构进行了三维虚拟设计,并结合从动摆杆运动学特征曲线对鸭嘴开合特征进行了分析,表明该机构能够满足设计功能要求。同时,开展了栽植器凸轮摆杆机构的样机试制和试验,试验结果表明:移栽机正常作业过程中,鸭嘴接苗准确,鸭嘴开合振动量小,工作较为平稳,基本无带苗、夹苗现象。 Aiming at the characteristics and needs of the transplanting operation of small plots in hilly and mountainous areas of Guizhou, the structure of the duckbill plant controlled by the cam pendulum mechanism was designed and optimized by relying on the 2ZBZ-2A self-propelled semi-automatic transplanting machine. The relationship between the main structural parameters of the cam pendulum mechanism and the opening and closing rules of the duckbill was established by establishing the mathematical model of the cam pendulum mechanism. Based on the analysis of the characteristics of the planting locus and the timing of the seedling, the three-dimensional virtual design of the cam pendulum mechanism was carried out by using the disc-type cam part generator, and the kinematic curve of the pendulum was The characteristics of the analysis were analyzed, indicating that the organization can meet the design functional requirements. At the same time, the prototyping cam pendulum mechanism of the prototype was tested and tested. The results showed that the duckling was accurate in the process of normal operation of the transplanting machine, the opening and closing of the duckbill was small and the work was smooth and basically no , The phenomenon of seedlings.

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