实现轨迹的凸轮-行星轮系组合机构设计

Design of Cam-planetary Gear Train Combined Mechanism with Trajectory Requirement

针对现有的实现轨迹的组合机构存在的局限性,设计了一种由行星轮系、凸轮机构和差动轮系组成的新型组合机构。该组合机构在做往复直线运动的同时实施摆动以产生避让动作,可用于高速连续自动送料场合。对该组合机构的原理及设计思路进行了详细阐述,确定了关键参数。最后通过一个设计实例,对组合机构进行建模及仿真,验证了执行端的轨迹满足设计要求。

As many combined mechanisms for trajectory- realizing have some limitations, a new type of combined mechanism composed by planetary gear train, cam mechanism and differential gear train is designed. The combined mechanism can move reciprocate in a straight line while sway to avoid other materials, which can be applied to continu- ous automatic feeding in high - speed situation. The principle and design ideas of the combined mechanism are de- scribed in details, and the key parameters are determined. Finally, the trajectory of the implementation is verified through a design example.