论文部分内容阅读
我段东风4型机车经过多年的运用后,其性能逐渐下降,主要表现就是曲轴断损日趋频繁。虽然机车大修或中修后,整体性能得到恢复,但曲轴因长期运用已受到相当程度的磨损,或因受交变应力的长期作用已存在质量隐患,在检修时通过常规检查合格或经必要的处理达到厂家装车要求下
After years of Dongfeng 4 locomotive after years of use, its performance gradually decreased, the main performance is the crankshaft breaking more and more frequently. Although the locomotive overhaul or training in the repair, the overall performance has been restored, but the crankshaft due to long-term use has been subject to a considerable degree of wear and tear, or because of the long-term role of alternating stress has quality problems, during inspection by passing the routine inspection or necessary Processing to meet the requirements of manufacturers loading