摘要螺旋起重机又称为螺旋升降机，它的原型就是我们所常见的千斤顶。它具有结构紧凑、体积小、重量轻、动力源广泛、无噪音、安装方便、使用灵活、功能多、配套形式多、可靠性高、使用寿命长等许多优点。可以单台或组合使用，能大致控制调整提升的高度，可以用电动机或其他动力直接带动，也可以手动。电动螺旋起重机基本原理是利用电机，通过减速器减速后，带动螺母旋转，转化为丝杆的轴向运动，从而推动物体上升。主要内容如下：对千斤顶的原理和螺旋起重的原理、方法进行了研究；设计螺旋起重机构；选择电动机；设计减速机构；控制电路的设计；简要阐述在流水线作业中，螺旋千斤顶的动作原理等。关键词千斤顶；电动；螺旋传动IAbstractThespiralcraneisalsoknownasthespiralscrewliftcrane.Itsprototypeisthejackaswecommonsee.Itsadvantagesasfollows:smallsize,lightweight,extensivepowersource,nonoise,easeofinstallation,flexible,multi-function,supportingforms,highreliabilityandlongservicelife,andsoon.Itcanbeusedsingleorincombination,andcangenerallycontroltheheight.Motorcanbeuseddirectlyorotherpowerdriven,besides,itcanalsobemanually.Andthebasicprincipleisthatthemotordrivestherotarynutthroughthedecelerationagencies,screwintotheaxialcampaign,andthenlifttheobjects.Themaincontentsasfollows:researchtheprincipleofspiraljackandtheprinciplesandmethodsofthespirallifting,designtheagenciesofspirallifting;motorchoice;designdecelerationagencies;selectkeysandbearings,designthecontrolcircuit;describetheprincipleofthescrewjackontheassemblylineoperation.KeywordsSpiraljackElectricalSpiraldriveII徐州工程学院毕业设计(论文)目录1绪论..............................................................................................................................................11.1千斤顶的发展现状...............................................................................................................11.2千斤顶的分类.......................................................................................................................22设计方案的确定..........................................................................................................................32.1螺旋传动设计方案...............................................................................................................32.1.1螺旋传动概述................................................................................................................32.1.2螺旋传动方案的确定....................................................................................................42.2减速传动机构设计方案.......................................................................................................53传动系统的设计..........................................................................................................................63.1螺旋传动部分计算...............................................................................................................63.1.1螺杆直径的计算............................................................................................................63.1.2螺纹部分强度计算........................................................................................................63.2电机的选择...........................................................................................................................83.2.1电动机功率计算............................................................................................................93.2.2传动...
