机电专业毕业设计MGTY-.D电牵引采煤机截割部设计.doc

毕 业 论 文 源设计图纸请联系本人，参见豆丁备注。 MGTY400/900—3.3D电牵引采煤机截割部设计 毕业生姓名 ： 专业 ： 机械设计制造及其自动化 学号 ： 指导教师 所属系（部） ： 机械电子工程系 二〇一四年六月 摘 要 MGTY400/900-3.3D型采煤机是一种电牵引大功率采煤机，该机机身矮，装机功率大，采用大角度弯摇臂设计，加大了过煤空间，提高了装煤效果，机械传动都是直齿传动，传动效率高，容易安装和维护。 本次设计以MGTY400/900-3.3D型电牵引型采煤机截割部为设计对象,采煤机截割部主要是由四级齿轮传动组成,电动机输出的动力经由两级直齿圆柱齿轮和双级行星轮系的传动，最后驱动滚筒旋转。设计任务有：一初步确定设计方案；二是通过查找有关资料及设计手册设计计算截割部的传动系统。在设计过程中，对截割部的轴、传动齿轮、轴承和联接用的花键等部件进行了设计计算、强度校核和选用。同时在计算过程中我们应该正确应用设计手册，认真计算每个过程的具体数据，确保设计数据的准确率，达到设计所要求的目的。 关键字：采煤机 截割部 减速器 行星轮 齿轮 Abstract MGTY400/900-3.3D Shearer is a high-power electric traction shearer with a short body and strong power. And it was designed with a wide-angle rocker arm, so that the space to deliver the coal was expanded, and the coal loading speed was efficiently improved. Mechanical transmission?is?a straight transmission with high transmission efficiency,?easy to install and maintain. This research takes the cutting unit of MGTY400/900-3.3D type electric traction shearer as the design object. The cutting unit is mainly composed of four - stage of gear transmission. The motor’s output power passes through two-stage of spur gears transmission and two-stage planetary gear train transmission, finally, rotates the drive rollers .The targets of the research: first, determine the basic design scheme. Second, design the transmission system of the cutting part by looking up some relevant information. In the process, we will design, choose and check the parts of shearer ,such as axle,transmission gears, bearings, the spline and so on. At the same time, we should make good use of the design manual when calculating, carefully calculate each specific data, ensure the accuracy of design data, and finally reaches the design requirements. Key words：Coal mining machines Cutting Department Reducer Planetary gear Gear  目 录 绪 论 1 第一章 MGTY400/900—3.3D型采煤机整机概述 3 第一节 采煤机的组成与特点 3 第二节 采煤机的工作面布置情况及工作过程 6 第三节 采煤机的主要技术特征 7 第二章 采煤机截割部设计的原则和依据 11 第一节 采煤机截割部总体设计原则 11 第二节 传动方案设计 13 第三节 传动零件