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1、编号：（）字号本科生毕业设计（论文）采煤机截割部设计题目：姓名：学号：班级：摘要采煤机各部分按组装可分为机身及牵引部，截割部，电气控制及调速设备，液压调高系统，冷却喷雾系统，辅助装置等。本次毕业设计主要是针对采煤机截割部的设计，采煤机截割部主要是由一个减速箱和四级齿轮传动组成。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柱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。在设计过程中，对截割部的轴、传动齿轮、轴承和
2、联接用的花键等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。此外，此外文中还介绍了采煤机的发展现状和工作原理等。由于我国对中厚煤层开采不到位，所以设计大功率电牵引采煤机的截割部具有重要意义，使采煤机用于矿井中较厚层综采工作面，开采较硬煤质并能适应较复杂的顶底板条件。关键词：采煤机；截割部；行星轮系；传动齿轮；设计ABSTRACTThecoalminingmachinepartsassemblycanbedividedaccordingtotheairframeand
3、traction,cuttingpart,electricalcontrol,hydrauliccontrolequipmentsandsystem,coolingsystem,auxiliarydevicespray.Calculateindesignwhichcutsthecuttingdepartmentofmainintroductionminingmachineofthismanual.Itismadeupofagearboxandmoderatebreezegearwheeltransmissiontha
4、ttheMG400/920-WDtypeminingmachinecutsthecuttingdepartment,cuttheelectricalmachineryofcuttingdepartmentandputtofixuphorizontallyintherockerarm,thepowerthatthemotoroutputsleansonaroundoftransmissionofdepartmentofgearwheelandplanetroundviathetertiarystraighttooth,
5、urgethecylindertorotatefinally.Cutthecuttingdepartmentandadoptthefloatingstructureoffourplanetaryforms,havereducedthephysicaldimension,adoptthelargeangletocurvetherockerarmtodesign,havestrengthenedthespaceofcoal,haveimprovedthecoalresultofputting.Inthecourseofd
6、esigning,tocuttingtheaxleofthecuttingdepartment,gearwheelofthetransmission,partssuchasthebearingandsplinelinkingusing,etchavedesignedtocalculate,theintensityischeckedandselectedforuse.Thismanualmainlydesignsformainpartonecalculatingtocheckwiththeintensityhavena
7、rratedandintroduced.Inaddition，returninguseforMG400/920-WDminingmachineandmaintenanceproves,Inordertobeabletogoodfullplayperformanceofpersonwhoshouldmine,reachthebestworkingresult.Keyword:MiningmachineCutthecuttingdepartmentAdepartmentofplanetGearwheelofthetran
8、smissionDesign目录1绪论11.1选题背景及意义11.2采煤机发展的历史11.2.1国外采煤机的发展历史11.2.2国内采煤机的发展历史21.3国内外采煤机械的技术特点41.4采煤机的类型、组成及工作原理51.4.1采煤机的类型51.4.2采煤机的组成51.4.3采煤机的工作原理62采煤机总体方案的确定82.1采煤机参数的确定82.
