液压支架双伸缩立柱临界载荷的计算方法  

A calculating method of critical loading for dual-extension hydraulic legs of hydraulic powered supports

作　　者：程居山[1] 苏国秀[1] 

机构地区：[1]山东科技大学,山东泰安271019

出　　处：《煤矿机械》2003年第11期1-3,共3页Coal Mine Machinery

摘　　要：液压支架是综合机械化采煤工作面的支护设备,双伸缩立柱是液压支架上的主要部 件之一。在分析了双伸缩立柱受力的基础上,建立了双伸缩立柱临界载荷计算的数学模型,提出了 临界载荷的计算方法。Hydraulic powered support is the supporting equipment of integrated mechanized mining face. Dual-extension hydraulic legs is one of key parts of powered support, based on the analysis of loading acting on dual-extension hydraulic legs, the paper builds mathematical models of calculating critical loading, and presents calculating methods of critical loading.

关 键 词：双伸缩立柱 挠度 临界栽荷 

分 类 号：TD355[矿业工程—矿井建设]