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,而本设计的采煤机正是针对中薄煤层适应高普而进行的设计。
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;为了适应不同的采高,通过更换三轴和四轴相应配对齿轮可实现三档变速实现三级工作转速分。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 of 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 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;To suit difference pick is 3 files speed changes high,through changing 3 axle and four-axle corresponding mating gear,can realize realize working 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
摘要 I
Abstract II
第1章绪论 1
采煤机简介 1
国内外采煤机发展及使用状况 2
采煤机在我国的使用情况 2
采煤机在国外的发展和使用 4
采煤机截割部概述 6
设计意义 6
第2章截割部传动总体设计 8
截割部主要设计参数 8
总体方案确定 8
截割部电动机的选 9
截割部传动比分配 11
第3章截割部系统传动设计 13
齿轮设计 13
(惰轮)齿轮设计与校核 13
大齿轮设计与校核 23
齿轮设计与校核 30
(惰轮)齿轮设计与校核 40
大齿轮设计与校核 49
一级行星齿轮设计与校核 56
轴的设计校核及轴承寿命计算 66
Ⅰ轴的设计校核及轴承寿命计算 66
Ⅲ轴的设计校核及轴承寿命计算 71
Ⅳ轴的设计校核及