采煤机截割部的设计毕业设计说明书

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1、采煤机截割部的设计采煤机截割部的设计 摘摘 要要 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、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

2、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 Machine Translation Oriented Stochastic Lexicla Semantic Driven Approach Abstract This brochure describes the type of hydraulic shearer traction unit program

3、 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 Shearer, Shearer will be the ranging-arm installed direct

4、ly 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 reliability. Ranging-arm of the shearer is directly charged

5、 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 t

6、o 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 degree requirements. Designed to be cutting planetary reducer and drum direct link, canceled installed in the drum Pick, simple and reliable. Key words: shearer, ranging-arm,structure,design 目录 摘 要 . I Abstract II 第一章 国内外采煤机研究及应用概况 1 1.1 国内外研究现状 . 1 1.2 国内外应用状况