铰链四杆机构急回性能图谱的计算机辅助绘制

COMPUTER AIDED-PLOTTING OF THE QUICK-RETURN CHARACTERISTIC DIAGRAMS OF THE FOUR-BAR LINKAGES

本文以平面铰链四杆机构的空间模型为基础,推导出了用计算机绘制三坐标平面区间图的坐标表达式,在此基础上,介绍了第(1)子区间曲柄摇杆机构的极位夹角图谱和第(8)子区间双曲柄机构急回性能系数图谱的绘制方法,并给出了部分典型尺寸下的图谱实例。最后说明了所绘制图谱的实际应用。

In this pater, an approach to plot the quick-return diagrams of the four-bar linkages using computer and plotter is presented on the base of the space model developed by the author. Our research is specially concerned with how the spa(?)ial 3-dimensional configuration is transformed to the planar one and how a. point in the space model is shifted to the case of its 2-dimensional Parameters. Two examples are presented to illustrate applications of ihe diagrams gained.