中厚煤层采煤机总体及截割部减速器设计.doc
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- 煤层 采煤 总体 截割部 减速器 设计
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1、摘 要MG400/900-3.3D型采煤机是一种电牵引大功率的采煤机,采用变频交流调速,该采煤机机机身矮,装机功率大,所有的电机都采用横向布置,机械传动都是直齿传动,电机、行走箱的驱动轮组件等均可以从老塘侧抽出,所以传动效率高,容易安装和维护。本说明书主要介绍了采煤机截割部减速器的设计计算。MG400/900-3.3D型采煤机的截割部主要是由摇臂和行星齿轮传动组成,截割部电动机在摇臂内采用横向布置,电机的输出动力经由一个三级直齿圆柱齿轮和行星轮系的传动,最后驱动采煤机的滚筒旋转。截割部采用四行星单浮动结构,可以减小结构尺寸,采用了大角度的弯摇臂设计,加大了过煤的空间,提高了装煤的效果。在本次设
2、计过程中,对采煤机截割部减速器的轴、传动齿轮、轴承以及联接用地花键等零部件进行了设计计算、强度校核和选用。本说明书主要针对主要部件的设计计算和强度校核进行了叙述和介绍。关键词:采煤机;截割部;减速箱;行星轮系;传动齿轮;轴设计IABSTRACT The MG400/900-3.3D type mining machine is that a kind of electricity draws the high-power mining machine, this machine fuselage is low, Installation is large in power,all electr
3、ical machineries are fixed up horizontally, mechanical drive is all the transmission of straight tooth, electrical machinery, walk case drive wheel package etc. can take from old pool side out, so the transmission is high in efficiency, easy to install and safeguard.Calculate in design which cuts th
4、e 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 MG400/900-3.3D type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally i
5、n the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally. Cut the cutting department and adopt the floating structure of four planetary forms, have reduced the
6、 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.In the course of designing, to cutting the axle of the cutting department, gear wheel of the transmission, parts such as the bearing and spline
7、linking using,etc have designed to calculate, the intensity is checked and selected for use. This manual mainly designs for main part one calculating to check with the intensity have narrated and introduced.In addition,returning use for MG400/900-3.3D mining machine and maintenance proves,In order t
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