分析了当前机车单纯以走行公里或时间确定检修修程的弊端,阐述了当量公里的概念,提出了采用公里量、时间量、负荷量确定检修周期的方案,介绍了内燃机车当量公里记录仪的构成、工作原理、功能及作用。 This paper analyzes the drawbacks of the current locomotive simply determining the maintenance and repair by walking kilometers or time, elaborates the concept of equivalent kilometer, proposes the scheme to determine the overhaul period by using the kilometers, the amount of time and the load, and introduces the equivalent kilometers recorder of diesel locomotive Composition, working principle, function and function.