近年来,液压传动技术取得了飞速的发展,应用范围也日益广泛。液压系统与传统的系统在技术方面有不少区别,特别是在故障诊断和日常维护方面。例如,运行时发现压力不够,拖不动负载,或者速度不够,噪声振动大等故障,运行时不好检查液压设备的各元件,停机检查时,压力、 In recent years, hydraulic transmission technology has made rapid development, the scope of application is also increasingly widespread. Hydraulic system and the traditional system in terms of technology there are many differences, especially in fault diagnosis and routine maintenance. For example, the operation found that the pressure is not enough, drag the load does not move, or the speed is not enough, the noise vibration and other failures, bad run Check hydraulic components of the device, stop checking, pressure,