NSE斗式提升机设计

PAGE/NUMPAGESNSEbucketelevatordesignABSTRACTThetaskistostudythedesignofbucketelevatorNSEworkingprinciple,performanceandfeatures,usingthemethodofintegratingtheorywithpractice,studytheimpactofbucketelevatorefficiencyfactors,carryoutthenecessarystructuralimprovementstotheprogramstructureandimplementationofdesign.Atthesametime,therelevantstructuralparametersandprocessparametersofthedesignandcalculation,thealloverprogramdesign,thegeneralassembly,aswellastransmission,bodypartsandrelatedpartsandcomponentssuchasdesignandgraphics.Designoptionsareasfollows:(1)bucketelevatortotheworkingprincipleofanin-depthstudy,inaccordancewithTH250bucketelevatorcapacityanduseoftheworkrequirementsoftheoverallprogramdesign.(2)designareasonablehoistthestrengthofthestructureandcomponentstoensurestability.(3)designareasonabledrivetoensuretheefficientoperation.Thebucketelevatorwiththroughput,andenhancethehighdegreeofhigh,stableandreliable,easyoperationandmaintenance,longlifeandothersignificantfeatures.Bucketelevatorforconveyingpowder,granularandsmallblockoflow-wearpropertiesofcut,materialpackingdensityoflessthan1.5t/m,materialtemperaturedoesnotexceed250℃,iswidelyusedtoenhancecementmachinery.KEYWORDS:Bucketelevator,StructuralDesign,Stability,Apply目录前言························································································································1第1章本课 题 快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题 介绍及 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 理论·······································································21.1概述················································································································21.2斗式提升机分类····························································································31.3斗式提升机的装载和卸载············································································31.4常用斗提机选用及相关计算········································································41.5斗式提升机的主要部件················································································61.6斗式提升机的工作原理················································································7第2章提升机主要参数确定及主要结构设计···········································92.1提升功率的确定···························································································92.2电动机选择···································································································102.3减速机选择····································································································102.4轴的材料及热处理························································································102.5轴的结构设计·································································································102.6轴的强度校核计算·························································································122.7轴承选用········································································································152.8键的设计校核································································································162.9联轴器的选择·································································································162.10驱动链轮的结构设计··················································································172.11提升机主要参数的计算··············································································182.12头部罩壳的选材及连接··············································································192.13中部区段的设计选材··················································································202.14料斗与板链的设计······················································································21第3章斗式提升机的安装、操作与维护·······················································23结论·····························································································································25谢辞··························································································································26参考文献···················································································································27前言斗式提升机广泛用于垂直输送各种散状物料，国内斗提机的设计制造技术是50年代由前苏联引进的,直到80年代几乎没有大的发展。自80年代以后,随着国家改革开放和经济发展的需要,一些大型及重点工程项目从国外引进了一定数量的斗提机,从而促进了国内斗提机技术的发展。有关斗提机的部颁 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 JB3926—85及按此标准设计的斗提机的相继问世,使我国斗提机技术水平向前迈了一大步,但由于产品设计、原材料、加工工艺和制造水平等方面的原因,使产品在实际使用中技术性能、传递扭矩、寿命、可靠性和噪声等与国际先进水平相比仍存在相当大的差距。斗式提升机按牵引形式主要分为胶带式、圆板链式和板链式三种,因经济条件、技术水平及使用习惯等原因,国内用户对圆板链式和胶带式斗提机需求量较大,这两种斗提机的技术发展受到较多的关注,而且有较为明显的发展。NE系列是一种板链斗式提升机，采用混合式或重力卸料，挖取式装料。牵引件用优质合金钢高度圆板链。中部机壳分单、双通道两种形式为机内重锤箱恒力自动张紧。链轮采用可换轮缘组合式结构。使用寿命长，轮缘更换工作简便。下部采用重力自动张紧装置，能保持恒定的张紧力，避免打滑或脱链，同时料斗遇到偶然因素引起的卡壳现象时有一定的容让性，能够有效地保护下部轴等部件。该斗式提升机适用于输送堆积密度小于1.5t/m3易于掏取的粉状、粒状、小块状的底磨琢性物料。如煤、水泥、碎石、砂子、化肥、粮食等。TH型斗式提升机用于各种散状物料的垂直输送。适用于输送粉状、粒状、小块状物料，物料温度在250℃以下。第1章本课题介绍及设计理论1.1概述这次设计的任务是研究NSE斗式提升机的工作原理、性能和特点，采用理论联系实际的方法，研究影响斗式提升机效率的影响因素，进行必要的结构改进，提出结构的 方案 气瓶 现场处置方案 .pdf气瓶 现场处置方案 .doc见习基地管理方案.doc关于群访事件的化解方案建筑工地扬尘治理专项方案下载 并实施设计。同时，进行相关结构参数和工艺参数的设计与计算、总体方案设计，总体装配以及传动、机体等部件和相关零部件设计及绘图。1.2斗式提升机分类1.2.1按牵引件分类斗式提升机的牵引构件有环链、板链和胶带等几种。板链的结构和制造比较简单，与料斗的连接也很牢固，输送磨琢性大的物料时，链条的磨损较小，但其自重较大。板链结构比较牢固，自重较轻，适用于提升量大的提升机，但铰接接头易被磨损，胶带的结构比较简单，但不适宜输送磨琢性大的物料，普通胶带物料温度不超过60°C，钢绳胶带允许物料温度达80°C，耐热胶带允许物料温度达120°C，环链、板链输送物料的温度可达250°C。斗提机最广泛使用的是带式(TD)，环链式(TH)两种型式。用于输送散装水泥时大多采用深型料斗。如TD型带式斗提机采用离心式卸料或混合式卸料适用于堆积密度小于1．5t／m3的粉状、粒状物料。TH板链斗提机采用混合式或重力式卸料用于输送堆和密度小于1．5t／m3的粉状、粒状物料。1.2.2按卸载方式分类斗式提升机可分为：离心式卸料、重力式卸料和混合式卸料等三种形式。离心式卸料的斗速较快，适用于输送粉状、粒状、小块状等磨琢性小的物料；重力式卸料的斗速较慢，适用于输送块状的，比重较大的，磨琢性大的物料，如石灰石、熟料等。1.3斗式提升机的装载和卸载斗式提升机的装载方式有三种，即注入式装载（见图1-2）、挖取式装载（见图1-1）和混合式装载。注入式装载要求散料以微小建度均匀地落入料斗中，形成比较稳定的料流，装料口下部应有一定的高度，采用该方式装载时一般料斗布置较密；料斗在牵引件上布置较稀时多采用挖取式装载，只能用于输送粉状或小图1-1挖取式装载图1-2注入式装载颗粒流动性良好物料的场合，斗速运行速度在2m／s以下，介于两者之间采用混合式装载。卸载方式有离心式、重力式及混合式三种。离心式卸料料斗的运行速度较高，通常取为1—2m/s。如欲保持这种卸载必须正确选择驱动轮的转速和直径，以及卸料口的位置。其优点是：在一定的料斗速度下驱动轮尺寸为最小；卸料位置较高，各料斗之间的距离可以减小，并可提高卸料管高度，当卸料高度一定时，提升机的高度就可减小；缺点是：料斗的填充系数较小，对所提升的物料有一定的要求，只适用于流动性好的粉状、粒状、小块状物料。重力式卸载使用于卸载块状、半磨琢性或磨琢性大的物料，料斗运行速度为0.4—0.8m/s左右，需配用带导向槽的料斗。其优点是：料斗装填良好，料斗尺寸与极距的大小无关。因此允许在较大的料斗运行速度之下应用大容积的料斗；主要缺点是：物料抛出位置较低，故必须增加提升机机头的高度。物料在料斗的内壁之间被抛卸出去，这种卸载方式称为离心—重力式卸载。常用于卸载流动性不良的粉状物料及含水分物料。料斗的运动速度为0.6—0.8m/s范围，常用链条做牵引构件。1.4常用斗提机选用及相关计算详细图纸及 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