采煤机sheji2222233

I摘要薄煤层采煤机各主要组成部分大同小异，其区别主要在截割机构的传动和截割部上,因此合理选择薄煤层采煤机的截割部的参数，可以改善其工作性能和减少采煤比能耗。本说明书主要介绍了薄煤层采煤机总体设计及截割部减速器的设计计算，该采煤机类型的选择及各主要组成部分设计，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。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。本说明书主要针对主要部件进行设计计算和强度校核，设计出符合要求的薄煤层采煤机及其截割部减速器，并通过主体部将各执行机构有机的组合。关键词：采煤机；截割部；减速箱；行星轮系；传动齿轮；设计IIAbstractThinseamcoalminingmachineisthemajorcomponentofthesame,thedifferenceismainlyinthecuttingmechanismofthetransmissionandthecuttingpart,thereasonableselectionofparametersofthincoalseamshearercuttingunit,canimprovetheirworkperformanceandreduceenergyconsumptionthancoal.Thispapermainlyintroducesthedesignandcalculationofthincoalseamshearerandoveralldesignofcuttingreducer,thecoalminingmachinetypeselectionandmainpartdesign,shearercuttingunitismainlycomposedofagearboxandfourlevelgeartransmission,cuttingmotorontherockingarmlateralarrangement,electricalpoweroutputbythegearandtheplanetarygeartransmissionwiththreestraighttoothcylindrical,finaldriverotarydrum.CuttingtheDepartmenthasadoptedsinglefloatingstructureoffourplanets,reducesthesizeofthestructure,withlargeanglebendsarmdesign,increasethespaceofcoal,improvetheeffectivenessofthecoalloading.Inthedesignprocess,transmissiongear,shaft,bearingandconnectedwiththeflowersandotherkeycomponentsofthecuttingpartofthedesignandcalculation,selectionandstrengthcheck.Thismanualmainlyaccordingtothemaincomponentsofthedesigncalculationandstrengthcheck,designedtomeettherequirementsofthethinseamcoalminingmachineandcuttingreducer,andthroughthecombinationofeachactuatorbodywillorganic.Keywords:Miningmachine;Cutthecuttingdepartment;Gearbox;Adepartmentofplanet;Gearwheelofthetransmission;DesignIII目录摘要..........................................................................................................................IAbstract...................................................................................................................II1绪论.......................................................................................................................11.1采煤机发展的历史...........................................................................................21.2我国薄煤层采煤机的发展进程.......................................................................31.3薄煤层采煤机的分类及其特点.......................................................................41.4本次设计的内容及目标...................................................................................52薄煤层采煤机总体设计.......................................................................................62.1实现采煤机基本功能的设计...........................................................................62.1.1实现破碎煤壁的方案.........................................62.1.2实现自移功能的方案.........................................72.1.3实现装煤功能的方案.........................................82.2实现采煤机辅助功能的设计...........................................................................82.2.1可实现自动卷电缆功能的方案.................................82.2.2可实现冷却和降尘功能的方案.................................82.2.3可适应煤层赋存状况变化的方案...............................92.3薄煤层采煤机主要技术参数的确定.............................................................102.4采煤机总体设计.............................................................................................122.4.1选择采煤机类型............................................122.4.2采煤机的总体结构..........................................132.4.3采煤机总体尺寸的确定......................................16IV2.4.4采煤机传动部分设计........................................162.4.5截割部传动系统设计........................................172.4.6采煤机牵引部概述..........................................202.4.7摇臂结构设计方案的确定....................................212.4.8此设计采煤机的特点........................................213截割部减速器设计.............................................................................................253.1传动方案的确定.............................................................................................253.1.1传动比的确定..............................................253.1.2传动比的分配..............................................253.1.3各级传动转速、功率、转矩的确定............................273.2齿轮的初步设计及强度校核.........................................................................283.2.1齿轮1和惰轮2设计及强度效核..............................283.2.2齿轮4和齿轮5设计及强度效核..............................323.2.3齿轮6和惰轮7的几何尺寸计算..............................363.2.4惰轮8和齿轮9的几何尺寸计算..............................393.3截割部行星机构的设计计算.........................................................................403.3.1齿轮材料制造工艺的选定....................................403.3.2确定各主要参数............................................403.3.3几何尺寸计算..............................................433.3.4齿轮强度验算..............................................444轴及轴承的设计.................................................................................................514.1轴的结构设计及其强度校核.........................................................................51V4.1.1Ⅰ轴的结构设计及其强度校核................................514.1.2Ⅱ轴的结构设计及其强度校核................