摘要
基于蓄能器输出流量大、一种组合油缸阻力损失小的特点,并结合常用安全阀结构特征和参数要求,提出了一种液压支架大流量安全阀试验方法和试验系统装置。通过分析研究STA-500安全阀试验台在设计和调试过程中的技术难题,提出并解决了系统建造中的关键技术一降低阻力损失、控制蓄能器流量和系统参数的配置方法;通过STA-500和其它系统测试结果的比对分析,研究基于蓄能器试验系统的性能一输出流量能力、测试精度、测试结果的重复性等;以STA-500安全阀试验台参数为基础,建立安全阀试验系统流量函数方程和振动分析模型,分析该系统的稳态流量特性和动态振动特性及影响因数,提出系统的基于蓄能器为动力源和一种组合功能加载油缸的安全阀试验系统的技术。
Based on the characteristics of high flow output of accumulator and the small resistance loss of combination cylinder, a kind of test method and test system device for hydraulic support high flow relief valve were put forward, which also combined common relief valve structure and parameters requirements. In the process of designing and debugging STA-500 relief valve test bench, the key technology namely reducing resistance loss, controlling the accumulator flow and configuration method of system parameters were put forward and solved through analysing technical problems. Comparing the STA-500 results systems with other test results, the performance of the test system based on the accumulator was researched, which included outputting flow capacity, testing precision, testing results repeatability etc. Meanwhile, structure technology of valve test system based on the accumulator for power supply and a combination cylinder was put forward with establishing the system flow function equation and the vibration model of system and analyzing the steady-state flow characteristics and dynamic vibration characteristics and influence factors.
引文
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