1、 采煤机截割部设计 1 1 本科生毕业设计 姓 名： 学 号： 学 院： 专 业： 机械机械制造及其制造及其自动化自动化 设计题目： 采煤机采煤机截割部截割部设计设计 专 题： 指导教师： 职 称： 2012 年 4 月 采煤机截割部设计 2 2 摘要摘要 本文描述了中煤层电牵引采煤机整机方案设计以及截割部的设 计过程。 中煤层电牵引采煤机可用于煤层厚度为 2-4m、煤质中硬的缓倾 斜煤层。 与传统的纵向布置的单电机采煤机相比， 该采煤机将截割电 机直接安装在截割部壳体内， 齿轮减速装置全部集中在截割部壳体及 行星减速器内， 取消了螺旋伞齿轮、 固定减速箱、 摇臂回转套等结构， 使其结构更简单
2、、紧凑，可靠性更高。 截割部是采煤机直接落煤、装煤的部分，其消耗的功率约占整个 采煤机功率的 80%-90%，主要由截割部壳体、截割电机、齿轮减速装 置、滚筒等组成。该采煤机的截割部采用四级传动；前三级为直齿传 动，第四级为行星传动。二级传动的圆柱齿轮为可换齿轮，使输出转 速可根据不同的煤质硬度在两档速度内选取。 截割部采用了三个惰轮 轴，使采煤机能够满足截割高度对截割部长度的要求。设计将截割部 行星减速器和滚筒直接联结， 取消了安装在滚筒上的截齿，使结构简 单、可靠。 关键词：关键词：采煤机，截割部，结构，设计 采煤机截割部设计 3 3 Abstract This brochure desc
3、ribes the type of hydraulic shearer traction unit program design and cutting the Department of Design and calculation process. traction Shearer hydraulic seam thickness can be used for 2-4 m, Hard coal to the gently inclined seam. With the traditional vertical layout of the single-motor compared to
4、Shearer, Shearer will be the ranging-arm installed directly in the cutting of the shell, gear device exclusively on cutting Shell and planetary reducer, the abolition of the spiral bevel gears, gear box fixed, Rocker rotating sets of structures, their structure is simpler, more compact and higher re
5、liability. Ranging-arm of the shearer is directly charged coal, the coal loaded, its about the power consumption of the entire power shearer 80% -90%, mainly by cutting Shell, cutting electrical, Gear and drum components. The shearer cutting unit used four drive; Before three straight tooth drive, the fourth level of planetary transmission. 2 Drive Gear to be for the gears, enabling the output speed can be based on different coal hardness in two tranches within the selected speed. Cutting the Department has adopted a three lazy axle, to meet the shearer cutting height on the ranging-arm
