一、前言当前,我局车辆部门在检修运用方面,普遍存在着货车转向架拱架柱螺栓折断的问题。为了响应毛主席“抓革命,促生产”的伟大号召,进一步提高车辆运行质量,保证行车安全,对此问题提出几点粗浅的看法,供研究参考。货车转向架拱架柱螺栓折断,在我段管辖茫围内,经常发生,特别是采用反帝型机车后,因牵引力增加和运行速度的提高,折断现象萸趋严重。从1965年到1967年1～4 I. INTRODUCTION Currently, there are widespread problems with the bolts of truck truck bogie frame bolts broken off in the overhaul and maintenance of our vehicle department. In order to respond to the great call of Chairman Mao to “grasp the revolution and promote production,” to further improve the quality of vehicle operation and ensure the traffic safety, a few superficial opinions on this issue are put forward for reference. Freight truck bogie frame column bolts break, in my jurisdiction over the limits, often occur, especially after the anti-imperialism locomotives, due to increased traction and increased operating speed, the phenomenon of broken tendons become more serious. From 1965 to 1967, 1 ~ 4