采煤机截割部设计.rar

采煤机截割部设计


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、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：采煤机，截割部，结构，设计
 
Abstract
This brochure describes 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 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 reliability.
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 degree requirements. Designed to be cutting planetary reducer and drum direct link, canceled installed in the drum Pick, simple and reliable.

Keywords: shearer, ranging-arm,structure,design
 
目录
摘要 2
Abstract 3
目录 4
第一章 国内外采煤机研究及应用概况 5
1.1 国内外研究现状 5
1.2 国内外应用状况 7
第二章 传动方案的设计 11
2.1总体传动方案的设计 11
2.2传动比分配 15
2.3截割部第一级圆柱齿轮传动设计 16
2.4截割部第二级圆柱齿轮传动设计 25
2.5截割部第一级行星传动设计 33
2.6截割部第二级行星齿轮传动设计 41
第三章 截割部辅助零部件的设计 50
3.1齿轮轴1的设计及校核 50
3.2第一级惰轮轴的设计及校核 52
3.3齿轮二轴的设计及校核 55
3.4第二级惰轮轴的设计及校核 59
3.5中心齿轮轴的设计及校核 62
3.6截割部花键连接强度校核 65
第四章 辅助零部件概述 69
4.1机身 69
4.2托缆装置 70
4.3喷雾冷却系统 70
4.4辅助液压系统 72
4.5护板及拆卸工具 73
4.6螺旋滚筒 74
结论 75
参考文献 76