矿用液压缸偏心加载及中心过载性能分析研究  

Research on Eccentric Loading and Central Overload Performance of Hydraulic Cylinder for Mining

作　　者：唐小龙 高洋 TANG Xiaolong;GAO Yang(China Coal Research Institute,Beijing 100013,China;Coal Science and Technology Research Institute,Beijing 100013,China;State Key Laboratory of High Efficient Mining and Clean Utilization of Coal Resources,Beijing 100013,China)

机构地区：[1]煤科(北京)检测技术有限公司,北京100013 [2]煤炭科学技术研究院有限公司,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室,北京100013

出　　处：《机床与液压》2024年第13期99-104,109,共7页Machine Tool & Hydraulics

摘　　要：矿用液压缸是煤矿用液压支架的重要工作元部件,其性能直接关系到整个综采工作面的生产安全。基于试验测试、数值计算及仿真分析对矿用缸偏心加载性能及中心过载性能进行分析。加载条件参照GB/T 25974.2-2010《煤矿用液压支架第2部分:立柱和千斤顶技术条件》,得到矿用液压缸偏心加载条件下的挠度数据,和中心过载加载条件下液压缸应力应变分布规律,并通过测试试验验证了搭建的矿用液压缸挠度及强度数值计算模型的准确性。研究结果为矿用液压缸设计制造及对应液压缸工作性能检测检验提供了参考数据。Mine hydraulic cylinder is an important working component of coal mine hydraulic support,and its performance is directly related to the production safety of the entire fully mechanized mining face.Based on the experimental tests,numerical calculation and simulation analysis,the eccentric loading performance and central overload loading performance of mining cylinders were analyzed.Referring to GB/T 25974.2—2010"Powered support for coal mine:Part 2:Specification for power set legs and rams",the deflection data of mining hydraulic cylinders under eccentric loading conditions and the stress-strain distribution law of the hydraulic cylinder under the condition of central overload loading were obtained.The numerical calculation model of deflection and strength of mining hydraulic cylinder was verified by test datas.The research results provide reference data for the design and manufacture of the hydraulic cylinder for mining and the inspection of the corresponding hydraulic cylinder performance.

关 键 词：液压缸 偏心加载 挠度 试验研究 

分 类 号：TD355.4[矿业工程—矿井建设]