文档介绍：摘要
我国煤炭中薄煤层储量丰富,对小功率采煤机的需求量也比较大。而炮采安全性比较低,生产率也比较低;综采对设备要求较高,而且投资费用比较大。所以对中薄煤层来说开发适应高档普采的采煤机是非常必要的,而MG300/700-WD型采煤机正是针对中薄煤层适应高普而进行的设计。
MG300/700-WD型采煤机的截割部机械传动由三级直齿传动和一级行星机传动实现,且末级采用太阳轮浮动形式的行星传动。采取摇臂结构形式以增大滚筒的过煤空间进而提高装煤效率,并对各级齿轮及相应的传动轴进行了设计计算和相应的校核,结果满足设计要求。
关键词: 采煤机截割部行星机构
Abstract
In the present coal mine of our country,the thin reserves of coal seam are still rich ,are larger for the demand of the small-power machine of coal cannon pick parison little,productivity is also low;Zong pick for equipment requirement higher,and investment cost for in thin coal seam development meet the high general machine of coal mining is very machine ofMG300/700-WD model of coal mining only aim at in thin coal seam meet the high general design and that goes on.
The section of the machine of MG300/700-WD model of coal mining cut department mechanical transmission from 3 level directly tooth transmission and a level machine transmission realization,and end level adopts the transmission of the floating form of sun to rocker arm configuration with the coal space of increase cylinder and then raising pack coal efficiency, And for different levels gear and corresponding power transmission shaft design calculation and corresponding school nucleus,as a result,satisfy design requirement.
Key words: Shearer Coal cutting part anization
目录
1 绪论 1
1
20世纪70年代是我国综合机械化采煤起步阶段 1
20世纪80年代是我国采煤机发展的兴旺时期 1
20世纪90年代至今是我国电牵引采煤机发展的时代 2
国际上电牵引采煤机的技术发展状况 3
国内电牵引采煤机的发展状况 4
2总体方案的确定 5
-WD型采煤机简介 5
5
5
6
6
6
7
传动比的确定 7
传动比的分配 7
3 传动系统的设计 9
、功率、转矩的确定 9
齿轮设计及强度效核 11
轴的设计及强度效核 19
先确定Ⅲ轴 19
25
30
4 行星传动机构的设计过程 31
5 采煤机的使用与维护 48
48
大功率采煤机截割部温升过高现象及解决方法 49
50
52
硬齿面齿轮的疲劳失效及对策 54
总结 57