高效排查液压油路渗漏研究

Research on high efficiency checking leakage of hydraulic oil circuit

液压油路渗漏是影响液压系统正常工作的重要问题。通过分析装载机在保台量及故障统计的数据得出,工作转向液压系统占总故障的比率最大。出现这种情况的原因是工况不同所致。通过调整试车程序,改善了以上问题。采取的措施是,在高速磨合之前,先用高速档反复爬坡,憋车5 min,使传动油温度升高后再跑高速。作业之前先憋液压油温,反复憋车10 min之后再作业试验。经过现场验证对比发现,这在很大程度上延长了车辆高温状态下试车的持续时间。如果把这种试验程序推广实行,对于降低车辆故障率会大有帮助。

The leakage of the hydraulic oil circuit is an important problem that affects the normal operation of the hydraulic system.By analyzing the data of the quantity of the loader on the platform and the failure statistics,the ratio of the working steering hydraulic system to the total failure is the largest.The reason for this is due to different working conditions.By adjusting the test procedure,the above problems are improved.Before running in at high speed,the high-speed gear is used to climb the slope repeatedly and hold the car for 5 minutes to make the transmission oil temperature rise before running at high speed.Hold the hydraulic oil temperature for 10 minutes before operation,and then conduct the operation test.Through field verification and comparison,it is found that the duration of vehicle test run under high temperature condition is extended to a large extent.If this test procedure is popularized,it will be helpful to reduce the failure rate of vehicles.