溢流阀性能实验液压教学实验台的故障分析与改进

Fault Analysis and Improvement of Hydraulic Teaching Experiment Table for Relief Valve Performance Experiment

针对液压溢流阀性能测试实验运行中出现压力表损坏及外管嘴喷溅油的问题,从实验原理、实验步骤及液压教学实验台结构上进行分析,找出了QCS003B型液压教学实验台出现上述问题的原因。分析了学生因操作不当所导致液压教学实验台系统过载,从而造成压力表损坏;由于学生操作二位三通电磁换向阀失误,导致外管嘴喷溅油。基于此,提出了液压教学实验台改进方案。改进后试验结果表明,改进后的液压教学实验台,运行良好,实验顺畅,消除了液压系统的过载及安全隐患,提高了实验教学质量,保证了实验教学进度。

Aiming at the pressure gauge damage and oil splashing of outside pipe nozzle problems occurring in the running of hydraulic overflow valve performance testing experiment,the analysis is done based on the experimental principle,experimental procedure and structure of hydraulic teaching experiment table,the reason for the above-mentioned QCS003B hydraulic teaching experiment table problems is found out.The student's incorrect operation analyzed is the reason which causes hydraulic teaching experiment table system overloads,which causes damage to the pressure gauge.Due to student's operational errors for two-position three way magnetic exchange valve,outside pipe nozzle is caused oil splashing.Based on this,the improvement for hydraulic teaching experiment table is put forward.The test result shows that: the improved hydraulic teaching experiment table is working well,experiment teaching work is smooth,the overload of hydraulic system and security problems are eliminated,which improves quality in experiment teaching and assures experiment teaching time.