分析了轮式挖掘机液压行走系统的工作原理,在混凝土路面和颠簸不平的黄土路面的两种路况下进行了液压行走系统的试验,通过试验数据的分析和统计,得到了液压行走系统的液压功率损失的来源和所占比例,对于降低液压行走系统的液压功率损失,指导产品的开发设计、为后续的节能降耗研究等提供了试验数据和理论依据。 The working principle of hydraulic walking system of wheeled excavator is analyzed. Hydraulic running system is tested under two conditions of concrete pavement and bumpy loess pavement. The hydraulic system of hydraulic walking system is obtained through the analysis and statistics of the test data. The sources and proportions of power loss provide experimental data and theoretical basis for reducing the hydraulic power loss of the hydraulic walking system, guiding the product development and design, and providing follow-up energy saving research.