基于蓄能器和组合功能加载油缸的安全阀试验技术研究
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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.
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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5. 孙玲,李鸿岩.液压支架用大流量安全阀研究[J].辽宁工程技术大学学报,2009,28(增刊)：277-279
6. 姜顺平.煤矿用安全阀性能的分析和研究[J].煤矿机械,2009,30(7)：33～34
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10.胡学军,滕达,谈宏华等.基于MATLAB的液压试验台的数据采集与处理[J].自动化技术与应用,2010,29(3)：83～85
11.汪忠士,刘利,陈明,李青松.两种滤波算法在液压数据采集系统中的应用与研究[J].机床与液压,2005.1：103～104
12.蔡伟,薄涵亮.组合阀流动阻力数值实验[J].核科学与工程,2007,27(4)：322～326
13.师好智,万曼影.某特殊结构单向阀的充气振动研究[J].机床与液压,2006,7：150～153
14.冀宏,傅新,杨华勇等.几种典型液压阀口过流面积分析及计算[J].机床与液压,2003(3)：14～16
15.许同乐,张新义.液压容腔的仿真研究[J].煤炭学报,2008,33(9)：1072～1074
16.陈殿京,刘殿坤.安全阀流场数值模拟研究[J].流体机械,2008,36(10)：24～27
17.李哲,魏志军.调压阀内流场数值模拟及动态特性分析[J].北京理工大学学报,2007,27(5)：390～394
18.张贺,蔡江辉,张继福等.信息熵度量的离群数据挖掘算法[J].智能系统学报,2010,5(2)：150～155
19.孙庆先,陈秋平,方涛等.基于模糊聚类的多尺度空间数据挖掘模型及其矿山应用[J].上海交通大学学报,2008,42(2)：194～197
20.翟京.安全阀溢流流量与压力的对应关系[J].煤矿开采2005,10(2)32～36
21.王国法.液压支架技术[M].北京：煤炭工业出版社.1999
22.吴石,张文平.阀门流场的数值模拟及流噪声的实验研究[J].阀门,2005,(1)：7～10
23.伍悦滨,曲世琳.给水管网中阀门阻力实验研究[J].哈尔滨工业大学学报,2003,35(11)：1311～1313
24.黄燕,周密,罗志远等.核动力装置稳压器安全阀可靠性建模[J].核动力工程,2008,29(5)：77～79
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