中文摘要：

为了分析该文提出的钵苗移栽机椭圆齿轮行星系植苗机构的作业性能,建立了该机构的运动学模型,推导了栽植嘴的（角）位移、（角）速度和（角）加速度方程。在此基础上,采用Visual Basic 6.0编写了该机构的运动学仿真与优化软件,并利用该软件分析几个主要参数对该机构作业性能的影响,这些主要参数包括椭圆齿轮长半轴、椭圆齿轮短长轴之比、行星架初始安装角和株距,作业性能包括穴口大小、栽植嘴的轨迹姿态及其直立性和机构作业的稳定性等。由参数影响分析结果,得到一组较优的机构参数,其对应的栽植嘴轨迹和姿态等作业性能满足蔬菜钵苗移栽农艺要求,且与往复式的植苗机构相比具有较小的速度和加速度波动。

英文摘要：

To analyze the working performance of the transplanting mechanism with planetary elliptic gears for pot seedling transplanter which was proposed in this paper,the kinematic model of this mechanism was established,and the equations of（angular） displacement,（angular） velocity and（angular） acceleration for transplanting tip were deduced.On this basis,the kinematic simulation and optimization software of the mechanism was compiled by Visual Basic 6.0.Besides,the influence of several main parameters on the working performance of the mechanism was analyzed by this software.These main parameters included the semi-major axis of elliptic gear,the ratio between minor axis and major axis,the initial installation angle of the planet carrier and row spacing.And working performances included hole size,trajectory attitude of transplanting tip and its verticality,and operational stability of the mechanism.According to the analysis results,a group of preferable mechanical parameters were obtained.The corresponding working performance,such as the trajectory and posture of transplanting tip,can meet the agricultural demands of vegetable seedling transplanting with smaller speed fluctuation and acceleration fluctuation in comparison with reciprocating transplanting mechanism.