支撑掩护式液压支架在非对称载荷下的受力分析  

STRESS ANALYSIS OF CHOCK SHIELD SUPPORT UNDER ASYMMETRIC LOADS

作　　者：徐忠正[1] 郭建廷[1] 

机构地区：[1]煤炭科学研究总院太原分院

出　　处：《煤炭学报》1990年第2期56-64,共9页Journal of China Coal Society

摘　　要：本文在支撑掩护式(或掩护式)支架受偏心载荷作用时,对其掩护梁和前、后连杆受扭、弯、拉压等复合载荷作用模型加以综合分析,找出了掩护梁及前、后连杆的变形协调条件;研究了掩护梁和前、后连杆上的扭矩分配方式,推出了相应的计算公式;并经实例计算,其结果符合支架实际载荷分配情况。最后还对现有的几种类似计算方法进行了简要讨论。A comprehensive analysis of a model of chock shield support (or shield support) under eccentric load is made, when the rear shield, front and rear linkages are under compound load of torsion, bending, tension and compression. As a result, the coordinated conditions for deformation of rear shield, front and rear linkages are found; distribution of torque on rear shield, front and rear linkages is studied, and a corresponding formulae are deducted; calculation of typical examples indicates that the results are in good agreement with actual load distribution of the support. Finally, the paper discusses briefly several similar calculation methods currently available.

关 键 词：液压 支架 掩护式 载荷 受力 

分 类 号：TD355.4[矿业工程—矿井建设]