平网印花机无级变速器的运动性能与优化设计

叙述了平网印花机上使用的曲柄摇块脉动式无级变速器的工作原理，分析了变速器摇块调节位置对从动件的位移、速度、加速度和压力角的影响，明确了输出轴速度不匀率与机构组数、摇块调节位置之间的关系以及输出轴转速的取向与速度不匀率的关系，建立了确定摇块位置调节范围的计算公式．在优化设计中，阐述了设计变量、目标函数、约束条件的建立，优化问题的解法，并对优化结呆进行了分析．

Characteristic Analysis and optimal Design of Variable-Speed Drive for Printing Machine

In this article, the author recounts the working Principle of infinitely variable speed trasmission used in square screen printing machine and analyses the kinematic characteristic of the driven member in the transmission.We also explore the effect of the slide adyustment on the driven member's motion property and discuss the relation between slide adjustment and driven shaft's rotation unevenness, the relotion between running direction of driven shaft and rotation unevenness and define the edjusrment range of the slide. Furthermore we stydy the optimal design of the mechanism and improve the motion characteristic of it. Therefore, research of this paper save out a useful reference to master the transimssion and to imprve the ddesign of it.