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解放9型蒸汽机车是我段用于货运的主型机车。该型机车是日本在四十年代制造的,我国解放后已多次加以改造,但由于机车主要零部件的使用期限过长,以及在保养、运用和检修方面的一些问题,机车存在着一些难于克服的隐患。摇杆瓦框断裂就是这些隐患之一。一年来,我段先后发生了三起摇杆瓦框在机车运行中断裂的机破事故。查阅了发生这三起机破事故的机车运行记录,当时机车并未超轴运行。摇杆承受过热蒸汽的膨胀力,使鞲鞴的往复运动转变为动轮的回转运动。它除了受
The liberation of 9 steam locomotive is the main section of my car for freight. This locomotive was manufactured by Japan in the 1940s and has been rebuilt several times after the liberation of our country. However, due to the long service life of the main components of the locomotive and some problems in maintenance, operation and maintenance, locomotives have some difficulties To overcome the hidden dangers. Rocker tile frame fracture is one of these hidden dangers. In the past year, there have been three machine-broken accidents of the rocker wedges in the locomotive operation. Checked the locomotive running records of these three accidents occurred when the locomotive did not over-run. The rocker withstands the expansive force of the superheated steam, turning the whirling reciprocating motion into the whirling motion of the moving wheel. It is apart from