介绍了大采高短壁采煤机的基本结构,对短壁采煤机的调高油缸和滑动油缸进行受力分析,计算油缸的设计载荷,确定了油缸的主要参数,再对油缸强度进行校核。设计过程不仅为短壁采煤机整机液压系统设计提供了基础数据,同时对于同类采煤机油缸的选型设计具有较高的参考价值。 This paper introduces the basic structure of large mining short-wall shearer, analyzes the bearing force of up-raising cylinder and sliding cylinder of short-wall shearer, calculates the design load of cylinder, determines the main parameters of cylinder, Check. The design process not only provided the basic data for the hydraulic system design of shortwall shearer, but also had a higher reference value for the design of the oil cylinder of similar shearer.