摘要
针对摩擦力的方向对液压支架的受力影响进行分析和举例计算，找到了支架的最不利工况，提出了支架设计。
This paper analysed and calculated the influence of the direction of the frictional force exerted to the powered support, It found the worst operating mode of the powered support and put forward some suggestions about design of support, experiment of exerting pressure upon support and strength-checking .
关键词
摩擦力
液压支架
受力影响
shield-type
chock-shield-type
four-bar-linkage
bouble twist line
frictional force
