大扭矩液压扳手设计.doc

本科毕业设计说明书大扭矩液压扳手设计THEDESIGNOFHYDRAULICWRENCH学院（部）：专业班级：学生姓名：指导教师：年月日PAGE\*MERGEFORMATI大扭矩液压扳手设计摘要随着国内电力，化工石油，工程建设的快速发展，这些行业中，大扭矩紧固件的拆装作业在传统的人力方法下，强度高，效率低。使用液压扳手可以有效的提高作业效率，提升安装精度。本设计就是优化液压扳手便携性和各种工况适应性。在设计里，采用液压缸和机架一体铸造成型，简化液压扳手在机架方面的结构，将进有出有管道铸造在液压缸缸体内，为节约材料，提高液压扳手的便携性。采用偏心液压缸设计。在设计里，为了减小活塞杆在推动摇臂过程中可能产生的侧向力，在机架上设计一平行滑道。平行滑道不开穿机架，以保证液压扳手整体具有较好的密封性。活塞杆在平行滑道内移动，活塞杆距棘轮中心距会不断变化，在摇臂上长孔来解决。当液压缸和机架采用一体成型，液压缸和机架在结构方面和机架与反作用力臂连接方面会有一些问题，设计通过液压缸缸体结构的变化及连接形式改变来解决这些问题。关键词：机架，液压缸，活塞杆，摇臂，反作用力臂PAGE\*MERGEFORMATIITHEDESIGNOFHYDRAULICWRENCHABSTRACTWiththedomesticelectricpower,petroleumandchemicalindustry,therapiddevelopmentofengineeringconstruction,theseindustries,disassemblingandassemblinglargetorquefastenersinthetraditionalhumanmethod,highstrength,lowefficiency.Theuseofhydraulicwrenchcaneffectivelyimprovetheworkefficiency,improvetheinstallationaccuracy.Thisdesignistheoptimizationofhydraulicwrenchportabilityandadaptability.Inthedesign,thehydrauliccylinderandtheframeisintegrallymolded,simplifiedhydraulicwrenchontheframeofstructure,theentrancepipecastinthecylinderbody,inordertosavematerials,improvetheportablehydraulicwrench.Theeccentricdesignofhydrauliccylinder.Inthedesign,inordertoreducethelateralforceofpistonrodinthepromotionoftherockerarmmightoccurduringtheprocessofdesign,aparallelslideontheframe.Parallelslidewithoutwearingaframe,inordertoensuregoodsealingofthewholehydraulicwrench.Thepistonrodtomoveinparallelslideway,thepistonrodfromtheratchetwheelcenterdistancewillcontinuetochange,ontherockerKongLaisolution.Whenthehydrauliccylinderandtheframeadoptsintegralforming,hydrauliccylinderandtheframestructureandframeandreactionarmconnectionwillhavesomeproblems,throughthedesigntosolvetheseproblemsandtheconnectionformandchangeofhydrauliccylinderstructure.KEYWARDS：bodyframe，Hydrauliccylinder，pistonrod，rockerarm，ReactionarmPAGE\*MERGEFORMATi目录TOC\o"1-3"\h\uHYPERLINK\l_Toc32386摘要（中文）PAGEREF_Toc32386IHYPERLINK\l_Toc12677摘要（外文）PAGEREF_Toc12677IIHYPERLINK\l_Toc183901绪论PA