目前,国内活塞式压缩机的十字头与中体滑道配合间隙的测量方法一般采用两种:一种是在新机器安装或大修时,可用内外径分厘卡分别测量十字头体外径及中体滑道内径,然后相减而得实测量;另一种是在十字头与连杆、活塞杆联结后和试车前的检查及中小修时,十字头不从中体滑道内取出,而采用塞尺（厚薄规）进行测量,得实测量（在测量前已对十字 At present, there are generally two methods for measuring the clearance between the crosshead and the middle body slideway of the domestic piston compressor: one is that when the new machine is installed or overhauled, the outer diameter and the middle The other is after the crosshead and connecting rod, piston rod coupling and test before the test and minor repair, the crosshead is not removed from the body slide, and the use of plug Ruler (thickness gauge) to measure, the actual measurement (measured before the cross