ZFY18000/28/53D型两柱放顶煤支架掩护梁强度分析  

Strength analysis on caving shield of ZFY18000/28/53D two-leg sublevel caving support

作　　者：马端志[1,2] MA Duanzhi(Coal Mining ＆ Designing Dept.,Tiandi Science ＆ Technology Co.,Ltd.,Beijing 100013,China;Mining Research Institute of China Coal Research Institute,Beijing 100013,China)

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013 [2]煤炭科学研究总院开采研究分院,北京100013

出　　处：《矿山机械》2018年第10期1-4,共4页Mining & Processing Equipment

基　　金：国家重点研发计划项目(2017YFC0804308);中国煤炭科工集团有限公司科技创新基金(2017MS005)

摘　　要：根据液压支架型式试验顶梁偏心加载要求,以ZFY18000/28/53D型两柱放顶煤液压支架为例,运用传统力学计算方法和整架非线性有限元分析法分别计算了掩护梁应力分布情况,通过对比发现,传统力学计算方法能够满足设计的基本需要,分析过程中简化内容比较多,计算结果中同一截面对称位置应力接近,而有限元分析法所得结果能够充分反映掩护梁各位置应力与顶梁加载垫块位置相关特点和同一截面对称位置应力分布不均的特点,并能够直观反映应力分布趋势,更有利于液压支架结构件的优化设计。According to the requirement of eccentric loading on the top beam during hydraulic support type test, taking ZFY18000/28/53 D two-leg sublevel caving support as the example, the paper applied traditional mechanical calculation method and whole-support non-linear finite element method to separately calculate the stress distribution of the caving shield. The comparison results showed： the application of the traditional mechanical calculation method met the basic design requirement, there are more simplification content during analysis, the calculated stress at symmetric location on the same cross-section was close; while the results obtained by finite element analysis method fully reflected the correlation of the stress at various location of the caving shield and the location of loading block for the top beam as well as uneven stress distribution at symmetric location on the same cross-section, and intuitively showed the stress distribution tendency, which was more beneficial to the optimization design of the components of the hydraulic support.

关 键 词：两柱放顶煤液压支架 掩护梁 偏心加载 应力分布趋势 

分 类 号：TD355.41[矿业工程—矿井建设]