12MN液压支架立柱试验台超低速加载系统设计  

Design of super-low speed loading system in test bench for 12MN leg in hydraulic support

作　　者：沙宝银[1,2] 孙红波[1,2] 

机构地区：[1]煤炭科学研究总院检测研究分院,北京100013 [2]煤炭资源开采与环境保护国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《矿山机械》2015年第2期16-19,共4页Mining & Processing Equipment

基　　金：煤炭科学研究总院基础研究基金资助项目(2011JC01)

摘　　要：提出了一种超低速加载液压支架立柱试验台测控系统,以高精度位移传感器作为反馈元件,构建计算机闭环控制系统,液压系统中采用两级比例伺服阀进行流量调节控制。阐述了超低速加载控制系统硬件、软件与仿真设计。实际应用表明,最低加载速度可达1 mm/min,解决了目前国内液压支架立柱试验台无法按照GB 25974.2标准进行2 mm/min加载的状况。The paper proposed a measuring and control system of test bench with super-low speed loading system for the leg of the hydraulic support. In the test bench, the high-precision displacement sensor served as the feedback component to construct the computer closed-circuit control system, and the two-stage proportional servo valve was applied to flow control in its hydraulic system. In addition, the paper narrated the hardware, software of the super-low speed loading control system as well as the simulation design. Actual application showed the lowest loading speed reached 1 mm/min, which solved the problem that the domestic test bench for the leg of the hydraulic support failed to load as 2 ram/rain specified in standard GB25974.2.

关 键 词：液压支架立柱 超低速加载 高精度位移传感器 模糊-PID 

分 类 号：TH703[机械工程—仪器科学与技术]