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1I摘要齿轮油泵是一种借一对相互啮合的齿轮，依靠泵内齿轮咬合旋转达到输送流体，在低压液压系统中作为提供一定流量、压力的一种液压能源装置。具有构造简单，自吸能力好，压力波动小，工作平稳可靠，噪声低，效率高等优点。齿轮泵可分为外啮合齿轮泵和内啮合齿轮泵。工作腔是齿轮上每相邻两个齿的齿间槽、壳体与两端端盖之间形成的密封空间；内啮合齿轮泵又可分为渐开线齿轮泵和摆线齿轮泵两种。外啮合齿轮泵和内啮合齿轮泵都属于定量泵，可作润滑油泵、重油泵、液压泵和输液泵，主要输送润滑性的油料介质液体，适用于石油、化工、运输、机械制造等行业。本报告主要针对齿轮泵的组成和设计进行全面分析，内容包括齿轮泵的齿轮的设计与校核，轴承的设计与校核，泵盖的校核，键的选择，齿轮泵的安装，齿轮泵的维修与保养。关键词:外啮合齿轮油泵；齿轮；泵盖；设计；校核；组装IIAbstractGearpumpisaequipmentwhichusesapairofmutuallymeshinggears,relyingonthegearmeshingrotarypumptoachievetransmissionfluid,Inthelow-pressurehydraulicsystemasacertainflow,thepressureofahydraulicpowerunit.Ithassomethinggoodthanotherpumps.suchas:Withasimplestructure,self-absorptioncapacity,smallfluctuationsinpressure,smoothandreliable,lownoiseandhighefficiency.Thegearpumpcanbedividedintotheexternalgearpumpandgearpump,Theworkingchamberissealedspaceformedbetweeneachadjacenttwoteethinterdentalgrooveshellwithbothendsoftheendcaponthegear;TheinternalgearpumpGearPumpcanbedividedintoinvoluteandcycloidalgearpumps.Theoutermeshinggearpumpsandinternalgearpumptobelongtothedosingpumps,Canbeusedasalubricatingoilpump,heavyoilpump,hydraulicpump,andinfusionpumps,conveyorlubricationoilliquidmedium,Applicabletothepetroleum,chemical,transportation,machinerymanufacturingandotherindustries.Thisreportacomprehensiveanalysisofthecompositionanddesignofthegearpump.Includethedesignandcheckingofthedesignandcheckingofthegearsofthegearpump,bearings,pumpscoverthecheck,thechoiceofkey,theinstallationofthegearpump,gearpumprepair,andmaintenance.Keyword：Outermeshinggearpump；gear；thecoverOfthepump；calculate；check；assemble河南理工大学本科毕业设计说明书目录摘要.........................................................................IAbstract.......................................................................II第一章绪论......................................................................11.1齿轮泵概述...............................................................11.1.1齿轮泵的特点、现状.................................................11.1.2齿轮泵分类.......................................................31.1.3齿轮泵的性能参数及其关系式.........................................31.1.4齿轮泵的性能.......................................................71.2本课题研究意义..........................................................7第二章外啮合齿轮泵结构及其工作原理............................................102.1外啮合齿轮泵的结构......................................................102.1.1齿轮泵结构简介....................................................102.1.2外啮合齿轮泵的结构特点............................................102.2外啮合齿轮泵工作原理....................................................132.2.1工作原理..........................................................132.2.2排量和流量计算....................................................142.2.3外啮合齿轮泵的优缺点..............................................14第三章齿轮泵总体设计..........................................................163.1齿轮泵的设计要求........................................................163.1.1主要技术参数......................................................163.1.2主要设计要求......................................................163.2齿轮参数的设计与校核....................................................163.2.1.齿轮参数的确定原则：.............................................163.2.2齿轮参数的确定....................................................163.2.3齿轮几何要素的计算................................................193.2.4齿面接触强度校核..................................................203.2.5齿面弯曲强度校核..................................................243.3滑动轴承的计算..........................................................25河南理工大学本科毕业设计说明书3.4泵盖的计算与校核........................................................293.4.1泵盖的确定........................................................293.4.2泵盖的校核........................................................293.5卸荷槽的计算............................................................303.5.1两卸荷槽的间距a..................................................303.5.2卸荷槽最佳长度c的确定............................................303.5.3卸荷槽深度h......................................................303.6齿轮泵进出口大小确定....................................................313.7轴的计算................................................................313.7.1轴最小直径计算....................................................313.7.2轴的强度计算......................................................323.7.3轴的扭转刚度......................................................323.7.4轴的弯曲刚度......................................................333.8螺栓组的连接强度计算....................................................343.8.1初步选择螺栓......................................................343.8.2对螺栓组进行拉伸强度校核..........................................353.9密封....................................................................353.10弹性挡圈选用...........................................................353.11键的选择...............................................................363.11.1联轴器用键.......................................................363.11.2齿轮用键.........................................................363.11.3键槽.............................................................363.12定位法兰选用......