大采高液压支架带压移架技术

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英文篇名：Advancing Support with Pressure Technology for Hydraulic Support with Large Mining Height 作者：曹连民 ; 张亚珠 ; 郭徽 ; 孙士娇 ; 张震 英文作者：CAO Lianmin;ZHANG Yazhu;GUO Hui;SUN Shijiao;ZHANG Zhen;College of Mechanical and Electronic Engineering, Shandong University of Science and Technology; 关键词：液压支架 ; 带压移架 ; 控制回路 ; 残余支撑力 ; 力学分析 英文关键词：hydraulic support;;advancing support with pressure;;control loop;;residual support force;;mechanical analysis 中文刊名：MKAQ 英文刊名：Safety in Coal Mines 机构：山东科技大学机械电子工程学院; 出版日期：2018-03-20 出版单位：煤矿安全 年：2018 期：v.49;No.524 语种：中文; 页：MKAQ201803022 页数：4 CN：03 ISSN：21-1232/TD 分类号：89-92

摘要

针对大采高液压支架带压移架技术展开研究,首先分析了带压移架控制方式特点,然后利用力学模型确定了带压移架残余支撑力的取值范围;根据工作要求及回路特点设计了一种新的带压移架控制回路,通过理论力学分析对保压阀及补液阀参数进行优化以消除压力波动的影响,保证该回路工作的可行性,并在此基础上在榆林某煤矿进行了现场试验;试验表明带压移架技术相较于传统移架方式具有显著的技术优势,为工作面稳定性的维护提供了一种新方式。
        This paper discussed the technology of advancing support with pressure of large mining height hydraulic support. We first analyze the characteristics of control mode in advancing support with pressure, and then determine the value range of the residual support force of advancing support with pressure by using the mechanical model, design a new control loop for advancing support with pressure according to the work requirement and circuit characteristics. Through theoretical analysis, we optimize the parameters for pressure retaining valve and fluid valve to eliminate the pressure fluctuations to ensure the feasibility of the circuit,and on the basis of the field test in Yulin Coal Mine, experiments show that the advancing support with pressure technology has significant technical advantages compared to the traditional way, which provides a new for maintenance work face stability.

引文

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