空气锤镗缸常需大型或专业化镗缸设备，一般小企业需由专业修理单位协作，周期较长，费用较高，我们设计了一种变位齿轮差动镗缸机，使用方便，效果较好。 一、镗缸机的结构原理与使用 1． 结构原理 如图1所示，刀具固定于导向轴1上。电机驱动蜗杆5、带动蜗轮4，通过U形键带动 Air hammer boring cylinder often requires large or specialized cylinder boring equipment, small businesses generally need to be repaired by a professional collaboration unit, longer cycle, higher cost, we designed a variable gear differential cylinder boring machine, easy to use, the effect better. First, the structure of cylinder boring machine principle and use 1. The structural principle is shown in Figure 1, the tool is fixed on the guide shaft 1. The motor drives the worm 5 and drives the worm wheel 4, driven by the U-shaped key