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液压系统回油路通常连接液压油散热器和回油过滤器,回油背压可提高液压油散热、过滤效果,防止吸空,还可提高液压系统工作的稳定性。但液压系统背压值必须合理,有些元件或系统不需要设置背压,背压越小越好,以使液压元件或系统动作灵活、减少能量损失。本文针对装载机液压系统回油背压引发的3例故障进行分析和排查。1.装载机牵引力不足(1)故障现象1台准备出口到澳大利亚的600K型装载机装配完成后进行调试,在测试
The hydraulic system return line is usually connected to the hydraulic oil radiator and return filter, return oil back pressure can increase the hydraulic oil cooling, filtration, to prevent air suction, but also improve the stability of the hydraulic system. However, the hydraulic system back pressure value must be reasonable, some components or systems do not need to set the back pressure, the smaller the back pressure the better to make the hydraulic components or system action flexible and reduce energy loss. This paper analyzes and investigates three failures caused by back pressure back to the hydraulic system of loader. 1 loaders lack of traction (1) the phenomenon of failure 1 Taiwan 600K loaders ready for export to Australia after the assembly is completed, the test