摇臂钻床说明书

摘要本次毕业设计题目是“Z32K型摇臂钻床变速箱的改进设计”。Z32K型摇臂钻床是许多学校机械加工实习所用的设备，该产品是由前苏联钻床型号改制而成，已有三十多年的历史，但近年来，该型号钻床的生产率降低，经济效益较低，同时伴有工人劳动强度的增大，致使钻床的使用率下降，经调查分析，主要原因是该产品没有自动升降系统所致。为改进其使用效果，此次设计主要是对Z32K型摇臂钻床的升降系统进行分析设计与改进，并对钻床的主要传动零部件进行设计校核。同时针对其在实际使用过程中出现的一些问题，并在理论分析与计算的基础上，将其手动升降变为自动升降，然后制定出合理的传动方案，且选择合适的原动机作为它的动力源，使改进后的升降系统具有手动和自动升降并存的功能。关键词：变速箱；手动、自动升降系统；摇臂钻床；直齿锥齿轮；强度校核ABSTRACTThegraduationprojectentitledTheadvanceddesignofthegearboxofZ32Kradialdrillingmachine.Z32Kradialdrillingmachineastheequipmentisusedinmanyschoolsduringthepracticeofmachining.ThisproducthasbeentransformedfromtheformerSovietUnionDrillingmodelsforalmost30years.However,theuseofZ32Kradialdrillingmachinehasdecreasedinrecentyearsbecauseoflowproductivityofthisdrillingmachine,thelackofeconomicefficiencyonusageofZ32kcomparably,andanincreaseinlabors'intensityduringtheproduction.Bytheresearchanalysis,thereductionofZ32Kisbecausethisproducthasshortageontheautomaticliftingsystem.InordertoimprovetheefficiencyofZ32K,theliftingsystemsofZ32kradialdrillingmachinewillbeprimarilyplanedtopromoteinthistimeofdesign.Meanwhile,themaintransmissionpartsofthedrillingaregoingtobereunified.Tosomeproblemswhichoccurinactualuse,andonthebasisoftheoreticalanalysisandcalculation,therewilldevelopaproposaltochangemanuallifttoautomaticlift.thenmakethetransmissionschemereasonable,andchoosetheappropriateengineasthepowersourceofthegearbox,andtheliftingoftheimprovedsystemhasmanualandautomaticliftingthecoexistenceoffunction.Keyword:transmission；manualoperatingandautomaticfluctuationsystem；universalradialdrillingmachine；straightbevelgear；strengthcheeks目录1概述.......................................................................................................................................................11.1摇臂钻床的简介.............................................................................................................................11.2摇臂钻床的发展趋势.....................................................................................................................11.3摇臂钻床的加工原理.....................................................................................................................22原动机的选择.......................................................................................................................................32.1原动机的运动形式.........................................................................................................................32.2原动机的选择.................................................................................................................................33机械传动方案的拟定与比较...............................................................................................................54绘制变速箱中升降系统的传动机构运动简图...................................................................................85传动部分运动及动力分析....................................................................................................................95.1部分传动连接设计.........................................................................................................................95.2传动比、各轴转速、功率及转矩的计算.....................................................................................95.3齿轮材料的选择............................................................................................................................115.4直齿圆锥齿轮的尺寸设计计算及校核.......................................................................................125.4.1直齿圆锥齿轮各参数的设计计算........................................................................................125.4.2圆锥齿轮的受力分析............................................................................................................135.4.3直齿圆锥齿轮的结构设计....................................................................................................135.4.4直齿圆锥齿轮强度校核........................................................................................................145.4.5圆锥齿轮齿面接触疲劳强度校核........................................................................................175.4.6直齿圆锥齿轮齿根弯曲疲劳强度的校核............................................................................175.5锥齿轮轴机-6的尺寸设计计算及校核.......................................................................................185.5.1锥齿轮轴机-6轮齿部分主要参数设计计算........................................................................185.5.2直齿圆锥齿轮轴机-6轴端部分设计....................................................................................195.5.3锥齿轮轴机-6的固定............................................................................................................205.5.4锥齿轮轴机-6轴径部分的设计计算....................................................................................205.5.5直齿圆锥齿轮轴机-6轴径部分的校核................................................................................215.6机-4齿轮设计计算及校核...........................................................................................................225.6.1机-4齿轮尺寸设计计算........................................................................................................225.6.2结构分析.....................