毕业设计_矿井提升及运输设备选型设计

i山西省高等教育自学考试毕业论文说明书专业:姓名:______________准考号:______________日期:______________山西省高等教育自学考试指导委员会ii山西省高等教育自学考试毕业设计(论文)评阅书题目__________________________________________专业:_________准考证号:___________姓名:________评阅意见:指导老师_________(签名)2014年5月24日iii山西省高等教育自学考试毕业设计(论文)答辩评定书专业:____________准考号:__________姓名:____________评定意见:评定成绩:山西省高等教育自学考试指导委员会毕业委员会答辩委员会主任委员______________(签名)2014年5月24日iv摘要本设计主要对矿井生产所用的提升及运输设备的选型进行的一次合理选择。矿井提升需要用一些专用的提升设备，主要有提升容器，提升钢丝绳，提升机，井架，装卸载设备以及一些辅助设备。矿井提升设备是矿山较复杂而庞大的机电设备，它不仅承担物料的提升与下放任务，同时还上下人员。矿井运输是煤炭生产过程的一部分，煤炭的井工生产中，运输线路长，巷道条件多种多样，运输若不畅通，采掘工作就无法继续进行，井工生产的煤矿运输作业，包括从工作面到矿井地面的煤炭运输和辅助运输，辅助运输包括矸石、材料、设备和人员运输。本书分四篇就以上几种设备的选型计算方法进行系统论述。关键词：提升机、运输机vAbstractTheorigindesignsmainlytothemineralwellproduceuseofpromoteandtransportachooseofequipmentsatypetocarryonofareasonablechoice.Themineralwellpromotestoneedtobeusesomeappropriativelypromoteanequipments,mainlyhavealreadypromotedcontainer,promoteasteelwirerope,promotemachine,well,packtounloadequipmentsandsomeassistanceequipmentses.Themineralwellpromotesanequipmentsismineralmountainmorecomplicatedbuthugemachineelectricityequipments,itnotonlyundertakeapromoteofmaterialwithnextpermissiveduty,inthemeantimereturntopandbottompersonnel.Themineralwellconveyanceisacoalproductionlineofapart,thewellworkofcoalproducemedium,conveyancecircuitlong,thetunnelconditionisvaried,conveyanceifnotunimpeded,diggingworkcan'tcontinuetocarryon,thewellworkproduceofcoalmineconveyancehomework,includefromworknoodlesgotomineralwellgroundofcoalconveyanceandassistancetransportandlendsupporttoaconveyancetoincludeGanstone,material,equipmentsandpersonneltotransport.Thisbookdivides4tocarryonsystemelaborationontheaboveseveralequipment'sshapingcomputationalmethod.Keyword:Promotemachinetransportmachinevi目录第一章刮板输送机的选型计算··································································1第一节运输能力的确定········································································1第二节电动机功率的校验·····································································2第三节刮板链强度校验········································································4第二章顺槽皮带机的选型计算··································································6第一节输送带的宽度···········································································6第二节牵引力及运行功率·····································································7第三节输送机的运行阻力·····································································9第四节输送带张力计算······································································11第五节输送带强度校验······································································13第六节电动机功率校验······································································14第三章大巷电机车的选型计算································································15第一节电机车及矿车的初选································································15第二节列车组成的计算······································································15第三节电动机台数的计算···································································19第四章主井提升设备选型计算································································21第一节箕斗的选择············································································21第二节选择提升钢丝绳······································································23第三节选择提升机和天轮···································································26第四节提升机与井筒相对位置的计算····················································28第五节预选提升电动机······································································29第六节提升系统总变位质量································································30第七节运动学参数计算······································································32第八节动力学参数计算········································································34第九节电动机容量校验······································································35结束语··································································································38参考文献······························································································39致谢······························································································40毕业设计说明书1第一章刮板输送机的选型计算刮板输送机，属于煤矿运输机械。用以解决煤矿15°-25°大倾角上山运输时，减速器倾角大、润滑不良、漏油、离心摩擦式联轴器进油打滑引发火灾，电动机烧损，过渡槽中卡链、断链、物料易滚落等问题。该矿用刮板输送机由防爆电动机通过离心摩擦式联轴器、减速器、圆环链轮和机尾滚筒带动圆环链条上的刮板组成，其先进之处是：通过一种新型机头架改变电动机、联轴器、减速器在机头部的装配角度，使其在大倾角上运时呈近水平。在过渡槽中板下面安装防卡链板，设计加大中部槽的装载深度。采用该机有效解决以上问题，降低事故率和材料消耗，并能减少巷道掘进长度和运输设备数量。第一节运输能力的确定一、生产率的确定当工作面采用采煤机时,因为煤是连续而均匀地装到输送机上的.所以生产率可按采煤机的生产率计算.60gQhbrV式中：ｈ——一次采高，ｈ=3.5m;b——采煤机一次截深，b=0.6m;r——原封煤容重,r=1.353/tm;Ｖg——采煤机的最大牵引速度,Ｖg=3.5m/min;则:603.50.61.353.5595.35/Qth考虑到刮板输送机的运输能力应大于采煤机的生产率,所以选择SGZ－764/320W重型刮板输送机.其主要技术规格如下：运输能力Q=900t/h；刮板链速度V=0.95m/s；刮板链单位长质量q=36.26kg/m；刮板链破断拉力F=850kN；电动机功率N=2×160kw；毕业设计说明书2中部槽尺寸长×宽×高（ｍｍ）1500×764×222；由于实际工作面长度和煤层倾角、煤层厚度等条件各不相同，需要对刮板输送机的运输生产能力、电机功率、刮板链强度进行验算。二、运输能力的计算3600OQFrv式中:F——货载最大横断面积；中部槽装煤的动堆积角按30°,从几何关系可求得F=0.764×0.222+12×（0.764-2×0.222）×0.7640.444302tg=0.1842mΨ——装满系数，按水平计算取1；表1-1装满系数输送情况水平及向下运输向上运输装满系数0.9～15º10º15º0.80.60.5r——散集容重，r=0.953/tm；v——刮板链速，v=0.95/ms；则：OQ=3600×0.