在本刊今年第三期简略介绍了等变螺距螺杆的切削,及用于皮带车床上的无级连续变速器。现介绍用于C620车床,车削等变螺距螺杆用的无级连续变速器。车削等变螺距螺杆所借助的无级连续变速器,实质是区域无级连续变速器,它的结构(图1)要根据车床的结构和中心高来设计。为了得到转速的变 In the third issue of this year, a brief introduction to the variable pitch screw cutting, and for the belt lathe stepless continuous transmission. Are introduced for the C620 lathe, turning variable pitch screw with a continuously variable transmission. Continuously variable pitch screw turning continuously variable transmission, in essence, the region continuously variable transmission, its structure (Figure 1) to be based on the structure and the center of the lathe to design. In order to get the speed change