mg300701-wd型电牵引采煤机

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1、摘要我国煤炭中薄煤层储量丰富，对小功率采煤机的需求量也比较大。而炮采安全性比较低，生产率也比较低；综采对设备要求较高，而且投资费用比较大。所以对中薄煤层来说开发适应高档普采的采煤机是非常必要的，而MG300/701-WD型采煤机正是针对中薄煤层适应高普而进行的设计。本文主要从机械传动的角度对MG300/701-WD型电牵引采煤机的摇臂进行了设计，采取电机横向布置，截割电机容量为300可kW；开采含有夹矸等较硬煤质的综合机械化采煤工作面，可靠性高，性能先进。采煤机摇臂工作时由扭矩轴驱动，能量逐级传递，二轴起均载作用，三轴和四轴构成齿轮的变速级，末级为四行星减速器用以降低速度。其中冷却喷雾装置

2、由主水阀、分水阀和管路等组成，供各电机、电控箱冷却用水和采煤机的内外喷雾灭尘。是针对薄煤层实现综合机械化采煤的理想机型，采用了先进的控制技术实现其独特的功能，是较薄煤层采煤机更新换代的理想机型。关键词采煤机摇臂传动系统行星机构.AbstractInthepresentcoalmineofourcountry,thethinreservesofcoalseamarestillrich,arelargerforthedemandofthesmall-powermachineofcoalmining.Andcannonpicksafetycomparisonlittle,productivity

3、isalsolow;Zongpickforequipmentrequirementhigher,andinvestmentcostiscompared.Soforinthincoalseamdevelopmentmeetthehighgeneralmachineofcoalminingisverynecessary.ThemachineofMG300/701-WDmodelofcoalminingonlyaimatinthincoalseammeetthehighgeneraldesignandthatgoeson.TheelectrictractionMG300/701-WDSheare

4、roftherockerarmisdesignedfromthemechanicaltransmissionperspective.Motoristakenbyhorizontallayout,thecapacityofcuttingmotoradjustmentrangeof200-300KW,throughchangethemotor′scapacity,achieveamulti-typeaircraft,toexploitcoalminingfaceofcontainminingandotherflakytonsteincomprehensivemechanization,high

5、reliability,advancedperformance.ShearerRockerworktorqueshaftdrivenbytheenergytransferprograms,thesecondshaftiswellbalanced,thethirdshaftandthefourthshaftareconstitutevariablespeedofpinion,theendisfourplanetaryreducertoreducespeed.Thecoolingspraydevicesbythemainvalve,valveandpipingsub-componentsfor

6、theelectrical,electroniccontrolboxshearercoolingwaterandtheinternalandexternalspraydust.It’sdesignedtoaddressthethinseamminingmechanizationcombinetheedealmodel,theuseofadvancedcontroltechnologytoachieveit’suniquefunctions,itistheidealreplcementmodelsofthinnerseamshearer!KeywordsshearerratioRockert

7、ransitionsystemepicyclicmechanism.目录摘要IAbstractII第1章绪论11.1前言11.2选题背景11.3研究目的和意义11.4国内外发展情况21.4.1采煤机在我国的使用情况21.4.2采煤机在国外的发展和使用41.5总体方案的确定61.6本文的主要内容7第2章主参数的设计计算8第3章机械传动机构强度验算133.1齿轮的计算载荷及齿轮和轴的材料的选用133.1.1计算载荷133.1