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针对传统高速分插机构均为多组非圆齿轮组成,安装和制造难度较大等问题,提出了一种双控差速行星系分插机构。分析了该分插机构的工作原理并建立其运动分析模型;采用RecurDyn虚拟样机仿真和MATLAB数值仿真等方法,对该理论分析模型和机构各参数与秧针栽插动静轨迹之间的关系进行研究。选取椭圆齿轮偏心率为0.13、插植臂长度135mm、插植臂箱体与y轴的初始夹角50°、插植臂与回转箱体的初始夹角35°和插植臂回转箱体回转半径90mm进行分析,结果表明:插秧株距为180~220mm时该分插机构能满足水稻插秧要求。
Aiming at the problems that traditional high-speed substation mechanisms are composed of multiple groups of non-circular gears, it is difficult to install and manufacture, and so on, a double-controlled differential planetary interspace interpolation mechanism is proposed. The working principle of this mechanism was analyzed and its motion analysis model was established. By using RecurDyn virtual prototype simulation and MATLAB numerical simulation, the relationship between the model and mechanism parameters and the movement trajectory of seedling planting was studied. . The eccentricity of the oval gear is 0.13, the length of the planting arm is 135mm, the initial angle of the planting arm box and the y axis is 50 °, the initial angle of the planting arm and the swinging box is 35 °, Radius of 90mm for analysis, the results showed that: when transplanting rice plant spacing of 180 ~ 220mm, the division mechanism can meet the rice transplanting requirements.