正如大家所了解的，在保证一定加工精度的条件下尽量提高机床劳动生产率，是我们机床设计员主要努力方向之一。提高机床的劳动生产率可以由缩短切削时间（用高的切削度及大进刀等）及辅助时间来实现。本文所介绍的在运转中接合的离合器，是苏联机床设计员在缩短机床辅助时间方面的一个极大成就。我们认为分级给我国机床设计员及广大读者是有一定价值的。 As we all know, to ensure that a certain degree of precision machining conditions to maximize the productivity of machine tools, machine tool designers is one of our main efforts. To improve the productivity of the machine tool can be shortened cutting time (with high cutting and large knife, etc.) and auxiliary time to achieve. The clutches that are engaged in operation as described in this article represent a significant achievement by Soviet machine tool builders in reducing machine aided time. We believe that grading to our machine tool designers and readers is of some value.