75T推钢机的设计说明书[带图纸].doc
I75T推钢机设计摘要推钢机是轧钢车间上料区主要设备之一,其作用是将加热炉前辊道上的钢坯或炉前上料台架上的钢坯推入加热炉进行二次加热过程。本设计选用了机械式推钢机,在推钢机结构设计上主要采用了齿轮齿条的结构形式。该机构具有结构简单,整体尺寸适中,传动效率高,维修方便,造价较低的优点。在本设计中主要对推钢机进行了结构设计和理论计算,并着重对传动机构做了详细的分析设计。关键词:推钢机;结构设计;理论计算IIDesignof120Tpusher-machineforBaotouSteelBarsfactoryAbstractPushingsteel-rollingworkshopisbasedononeofthemainequipmentsPusher-machine,anditsroleistopushthebilletmaterialwhichliesontheRollerorthebenchbeforethefurnaceintothefurnaceforreheatingprocess.Thedesignchoosesamechanicalpusher-machine,whilethestructuredesignedprimarilyfortheuseofthegearandrackstructure.Theadvantagesofthestructureexiststhatthebodyissimpleinstructure,theoverallsizeofmoderate,hightransmissionefficiency,easymaintenance,thelowercost.Themaincontentofthepusheer-designincludesthestructuredesignandtheoreticalcalculationsandfocusonthetransmissionmechanismtodoadetailedanalysisanddesign.Keywords:Pusher-machine;StructuralDesign;TheoreticalcalculationsIII目录摘要·········································································································IABSTRACT································································································II前言···································································································-1-第一章概述·······················································································-3-1.1轧制工艺过程简介··········································································-3-1.1.1轧制工艺过程··········································································-3-1.1.2轧制工艺过程的设计与实施························································-4-1.1.3轧制工艺过程的自动控制···························································-4-1.2推钢机的简介················································································-6-1.2.1推钢机的种类··········································································-6-1.2.2齿式推钢机的结构····································································-6-1.2.3设计中应注意的事项·································································-6-第二章传动方案的分析与拟定··························································-8-2.1传动方案的分析·············································································-8-2.1.1常用的传动类型及其特点···························································-8-2.1.2机械传动系统设计时应注意的事项···············································-8-2.2传动方案的拟订·············································································-9-第三章电动机的选择计算·······························································-10-3.1概述···························································································-10-3.1.1常用电动机的种类··································································-10-3.1.2电动机选择时的注意事项·························································-11-3.2电动机的选择计算·········································································-11-IV3.2.1选择电动机的类型和机构型式···················································-11-3.2.2选择电动机的容量··································································-11-3.2.3确定电动机转速·····································································-12-3.2.4选定电动机的型号和参数·························································-12-第四章传动装置的运动及动力参数的选择和计算····························-13-4.1传动比的计算与分配······································································-13-4.1.1传动装置的总传动比·······························································-13-4.1.2分配各级传动比·····································································-13-4.2.3各轴参数的计算·····································································-14-第五章减速器的选择计算·······························································-15-5.1减速器概述··················································································-15-5.1.1减速器的作用········································································-15-5.1.2减速器的分类········································································-15-5.2减速器的选用···············································································-16-第六章传动机构的设计计算··························································-17-6.1齿轮齿条传动设计计算···································································-17-6.1.1齿条传动的特点·····································································-17-6.1.2齿轮齿条传动的设计计算·························································-18-6.2齿轮传动的设计计算······································································-23-6.2.1齿轮传动的特点·····································································-23-6.2.2齿轮传动的设计计算·······························································-23-第七章轴系零部件······································································-28-7.1轴的设计·····················································································-28-7.1.1概述····················································································-28-7.1.2轴的结构设计········································································-29-7.1.3轴的强度计算········································································-31-7.2轴承的选择与计算·········································································-34-V7.2.1概述····················································································-34-7.2.2滚动轴承的类型和选择····························································-35-7.2.3滚动轴承的受载情况和失效形式················································-36-7.2.4滚动轴承的寿命计算·······························································-37-7.3键的设计与校核············································································-39-7.3.1键联接的类型、特点和应用······················································-39-7.3.2平键的选择和强度校核····························································-41-7.4联轴器的设计计算·········································································-42-7.4.1联轴器的种类和和特性························-42-7.4.2选择联轴器类型·····································································-43-7.4.3进行必要的校核·········································································-43-结束语··························································································-45-参考文献··························································································-46-致谢·····························································································-47-