新型电牵引采煤机截割部的设计.pdf

本 科 毕 业 设 计（论文） 题目 新型电牵引采煤机截割部的设计 摘 要 本说明书主要介绍了采煤机截割部的设计计算。此新型电牵引采煤 机截割部主要是由一个摇臂减速箱和一个行星减速机构组成,截割部电 机放在摇臂内横向布置,电动机输出的动力经由三级直齿圆拄齿轮和行 星轮系的传动，最后驱动滚筒旋转。截割部采用四行星单浮动结构，减 小了结构尺寸，采用大角度弯摇臂设计，加大了过煤空间，提高了装煤 效果。 关键词：采煤机；截割部；减速箱；行星轮系；设计 I Abstract Calculate in design which cuts the cutting department of main introduction mining machine of this manual.It is made up of a gearbox and moderate breeze gear wheel transmission that the advanced mining machine cuts the cutting department,cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm,the power that the motor outputs leans on around of transmission of department of gear wheel and planet round via the tertiary straight tooth ,urge the cylinder ti rotate finally.Cut the cutting department and adopt the floating structure of four planetary forms,have reduced the physical dimension, adopt the large angle to curve the rocker arm to design,have strengthened the space of coal,have improved the coal result of putting. Key words: Mining machine;Cut the cutting department;Gearbox;A department of planet;Desigh II 目 录 前 言1 1 绪论2 1.1 采煤机发展概述2 1.2 国内外发展现状及研究趋势4 1.2.1 国外电牵引采煤机发展概况4 1.2.2 国内电牵引采煤机发展概况5 1.2.3 技术特点与发展趋势6 1.2.4 国内电牵引采煤机研究方向9 2 煤的机械性能及截割理论10 2.1 煤层构造特点10 2.1.1 原生性构造特点10 2.1.2 次生性构造特点10 2.1.3 断裂和裂缝的观测11 2.2 煤的物理机械性质12 2.2.1 煤的物理性质12 2.2.2 煤的机械性质13 2.2.3 煤的坚固系数17 2.2.4 煤的截割阻抗17 3 截割部的设计与计算18 3.1 主要技术参数18 3.2 传动比和各轴转矩的计算19 3.3 齿轮强度校核22