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瑞典阿特拉斯凿岩台车(以下简称台车)液压系统工作压力下降,并不一定是泵的故障。钻机、阀和液压缸的故障也会引起压力下降,我们应通过科学手段结合实际经验去分析判断,这一科学手段就是对液压系统的各个元件进行科学的测试。台车泵的价格昂贵,结构复杂,因此,确定泵的故障后,应送到有相当经验和试验设备的人那里修理。我们在修理国内铁道、水电系统几大工程局的液压泵时取得了一些经验,现总结如下,供同行参考。 一、检测 对液压泵进行检测,主要有以下3种方法: 1.逐项排除检测法:首先,将通往臂定位系统的油口堵死,此时压力仍升不起来,则将通低冲阀的管路堵死,如果压力还升不起来,则将冲击油管接到别的较好系
The working pressure of the hydraulic system of the Atlas rock drill trolley in Sweden (hereinafter referred to as the trolley) is not necessarily the fault of the pump. The failure of drilling rigs, valves and hydraulic cylinders will also cause pressure drop. We should use scientific methods to analyze and judge with actual experience. This scientific method is to scientifically test all components of the hydraulic system. The trolley pump is expensive and complex in structure. Therefore, after determining the failure of the pump, it should be sent to someone who has considerable experience and test equipment. We have gained some experience in repairing the hydraulic pumps in several major engineering bureaus of domestic railways and hydropower systems and are summarized below for reference by our peers. First, the detection of hydraulic pump testing, there are mainly the following three methods: 1. Exclude one by one detection method: First, the port to the arm positioning system blocked, when the pressure is still not rise, then will be low The pipeline of the flush valve is blocked, and if the pressure does not rise, the impact oil pipe is connected to other better systems.