DX型钢丝绳芯式带式输送机设计毕业论文.doc

I摘要带式输送机自它诞生以来，经过200多年不断完善和改进，已进入电力，冶金，煤炭，化工，矿山，港口等各行各业之中。其机构简单，输送物料范围广，输送量大，运距长，对线路适应性强，装卸料十分方便，可靠性高，营运费低廉，基建投资省，耗能低，效率高，维修费少。本设计为DX型钢丝绳芯式带式输送机，采用机头双滚筒驱动，在保证滚筒不发生打滑的前提下来传递较大的功率，降低输送带的张力和提高使用寿命。文中根据第二滚筒围包角用足，依此算出输送机的各种参数，进行结构设计。由于倾角较大，按第二滚筒围包角用足进行等驱动功率单元法分配，本设计采用1:1分配，得出尾部张力最小，根据布置原则，张紧装置一般布置在输送带张力最小处，所以本文采用重载车式张紧装置进行张紧。如今，带式输送机正向长距离、高带速、大功率、大运量的大型化方向发展，使其在煤炭行业得到广泛应用。关键词带式输送机双滚筒驱动张紧IIAbstractThebeltconveyerwithcontinuedevelopmentandimprovementhasenteredalltradesandprofessionssuchaspower,metallurgy,coal,chemicalengineering,mineandportsincebeingbornformorethan200years.Itsconstructionissimple,itisbroadtotransportstockscope,itisbigtotransportquantity,thelengthofhauldistancehasstrongadaptabilityforline,handlingmaterialisveryconvenient,reliabilityishigh,itcanreduceinvestmentinbasicconstruction,highefficiency,lowmaintenancecost.ThedesignisDXmodelcoretypebeltconveyerofwirerope,themachineheaderadoptstwocylinderdrives,inguaranteecylinderdonotoccurtheprerequisitewithslipperydozentransmitgreaterpower,reduceraisingthetensionofbeltconveyerandimproveservicelife.Inwritingaccordingtosecondcylindersurroundbaleangleuseenough,accordingtothisvariousparametersthatmakeconveyerfinally,carryoutstructuraldesign.Sinceinclinationisgreater,accordingtosecondcylinderwaitfordrivewithfootpowerunitlawdistribution,thisdesignadopts1:1isdistributed,itisminimumtoreachtailtension,basisarrangeprinciple,tensionstationarrangesnormally,isinthetensionminimumplaceofconveyerbelt,so,thispaperusetheburdenvehicletensionequipmenttotighten.Nowbeltconveyersdevelopmenttowardstolongdistance,highbeltspeed,greatpowerandhightransportation,andtheadvantageofthiskindofconveyerrealizeseasily,makeextensiveapplicationincoalindustry.KeywordBeltconveyertwocylinderdrivetightIII目录摘要.IAbstract.II第1章绪论.11.1前言.11.2带式输送机的发展史.11.2.1国外带式输送机的发展.11.2.2国内带式输送机的发展.21.2.3国内外带式输送机的差距.21.2.4带式输送机的发展趋势.31.3带式输送机的分类.31.4带式输送机的特点及应用.4第2章带式输送机的整体设计方案.52.1方案的确定.52.2工作原理.7第3章带式输送机的主要部件与功能.103.1输送带.103.1.1输送带的发展.103.1.2输送带的种类及差异.103.1.3输送带的要求.113.1.4钢丝绳芯输送带.113.2拉紧装置.123.2.1拉紧装置的作用.123.2.2拉紧装置的分类及特点.123.3托辊.143.3.1托辊的结构及作用.14IV3.3.2托辊的选择.143.4清扫装置.163.4.1清扫器的作用.163.4.2清扫器的形式.163.5传动滚筒、改向滚筒.173.5.1传动滚筒的分类.173.5.2改向滚筒的选取.183.5.3环形胀套.193.6机架的设计与选取.203.6.1机头探架.203.6.2中间支架.20第4章带式输送机的设计计算.214.1设计参数.214.2根据实际输送量计算带宽.214.3运行阻力.234.4牵引力及运行功率.284.5输送带张力计算.294.6输送带强度验算.314.7滚筒直径的确定.314.8驱动装置的选型及计算.324.8.1电动机