内蒙古科技大学毕业设计说明书
摘 要
（加qq576779950有整套设计，包括CAD图纸，加的时候要注明。）
设计的主要目的：掌握一般机械产品设计的方法及规律；掌握橫轴式掘进机截割部的设计步骤。
设计内容为履带式半煤岩掘进机设计。在此，主要进行了掘进机的整体功能设计和掘进机截割部的结构设计。在整体设计中，本设计主要对掘进机的装载系统、物料输送系统、行走系统、液压系统，以及机架和回转台等主要系统和部件进行功能设计，确定其主要的功能参数。
设计对掘进机截割部进行了详细的设计、计算。掘进机采用橫轴式掘进机截割部。在设计中，主要对掘进机行走部和截割部减速器等进行了详细的设计、计算。
本掘进机截割部设计的主要特点是：
（1）用三级齿轮传动加惰轮的方式增加了掘进机截割部的长度，满足了掘进机截割部的长度要求，并且避免了最后一级齿轮因直径过大而和掘进头产生干涉。 （2）第一级使用锥齿轮传动，满足了橫轴式掘进机截割部需要改变传动方向的要求。 此外，本设计还对半煤岩掘进机的特点和发展概况进行了简单介绍，对掘进机拆运安装和调整，掘进机的井下组装以及掘进机的检修和维护保养作了简单介绍。
关键词：掘进机；截割部；减速器
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内蒙古科技大学毕业设计说明书
ABSTRACT
The main purpose for this design is as follows: to know how to design a digging Machine; to master the way to design the crossing axis digging part of the digging machine.
The thing of this design is a digging machine which is used to cut coal and moved by chain, this design mainly about the function of all of the parts of the machine and the structure of the digging part. In the design of the whole machine, this article is mainly about the taking system, the carrying system, the walking system, the liquid system and the machine structure and so on.
The article mainly talk about the structure of the digging part, this digging part is a crossing axis digging part. In this article, the walking system and the speed reducing machinery are carefully designed. The characteristic of the digging part are as follows:
（1）Three couple of gears are used in the speed reducing machinery to add the length of the digging part and because this way of design, the intervention of the gear and the digging head can be avoid.
（2）The cone gears are used in the first couple of the gears it fill the need of the aspect changing of the digging part.
Furthermore the article also talks about the digging machine’s earmark and the history of the digging machine, and this article also talks about the dismantling and fixing of the machine, the checking and repairing of the machine.
Keywords: Digging machine; Digging part; Speed reducing machinery.
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内蒙古科技大学毕业设计说明书
目录
摘 要 .................................................................................................................................................. I ABSTRACT ................................................................................................................................................ II 第一章 概 述 ......................................................................................................................................... 1 1.1国外掘进机发展历程 .................................................................................................................. 1 1.2国内掘进机发展概况及技术水平 .............................................................................................. 3 1.3掘进机的技术特点 ...................................................................................................................... 4 1.4掘进机的发展方向 ...................................................................................................................... 5 1.5 掘进机机型及主要机构介绍 ..................................................................................................... 6 1.5.1工作机构 .............................................................................................................................. 7 1.5.2装载机构 .............................................................................................................................. 8 1.5.3输送机构 .............................................................................................................................. 8 1.5.4转载机构 .............................................................................................................................. 8 1.5.5行走机构 .............................................................................................................................. 9 1.5.6除尘装置 .............................................................................................................................. 9 第二章 EBH-90型掘进机整体结构设计与力能参数计算 ................................................................ 11 2.1设计目的与基本要求 ................................................................................................................ 11 2.1.1 型号含义 ........................................................................................................................... 11 2.1.2主要参数 ............................................................................................................................ 12 2.2总体的结构特点 ........................................................................................................................ 14 2.3截割部 ........................................................................................................................................ 14 2.4 装载部 ....................................................................................................................................... 16 2.5刮板输送机 ................................................................................................................................ 16 2.6行走部 ........................................................................................................................................ 17 2.7机架和回转台 ............................................................................................................................ 19 2.8液压系统 .................................................................................................................................... 20 2.9内、外喷雾冷却除尘系统 ........................................................................................................ 20 第三章 EBH-90型掘进机截割机构设计 ............................................................................................ 22 3.1截割头的选择 ............................................................................................................................ 22 3.2截割电动机的选择 .................................................................................................................... 22
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内蒙古科技大学毕业设计说明书
3.2.1截割部减速器传动机构设计 ............................................................................................ 23 3.2.3传动系统的运动和动力参数： ........................................................................................ 25 3.2.4轴的设计计算： ................................................................................................................ 38 3.2.5轴承的校核： .................................................................................................................... 41 3.2.6键的校核： ........................................................................................................................ 42 第四章 EBH-90型掘进机行走机构设计 ............................................................................................ 43 4.1行走履带驱动方式及系统参数的确定 .................................................................................... 43 4.1.1履带的接地长度、行驶宽度和履带宽度的确定 ............................................................ 43 4.1.2 驱动轮直径 ....................................................................................................................... 43 4.1.3履带节距 ............................................................................................................................ 43 4.1.4履带机构公称接地比压的计算与确定 ............................................................................ 44 4.1.5履带机构的行走速度 ........................................................................................................ 44 4.1.6履带传动的连接方式与履带机构张紧 ............................................................................ 44 4.1.7 花键设计及校核 ............................................................................................................... 44 4.1.8联轴器的选择 .................................................................................................................... 45 第五章 掘进机的安装和调整 ............................................................................................................. 47 5.1机器的拆卸和搬运 .................................................................................................................... 47 5.2掘进机的井下组装 .................................................................................................................... 47 5.3机器的井下调试 ........................................................................................................................ 49 5.4机器的调整 ................................................................................................................................ 49 第六章 掘进机的检修和维护保养 ..................................................................................................... 52 6.1机器的日常维护和保养 ............................................................................................................ 52 6.2机器的定期维护和保养 ............................................................................................................ 53 6.3机器的润滑 ................................................................................................................................ 53 结 束 语 ............................................................................................................................................... 55 参考文献 ............................................................................................................................................... 57 致 谢 ................................................................................................................................................... 58
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内蒙古科技大学毕业设计说明书
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