大型减速器模拟加载实验台设计论文[带图纸].doc

辽宁工程技术大学毕业设计（论文）1目录前言·························································································11绪论·······················································································21.1课题研究目的和意义································································21.2二次调节技术的研究发展与应用·················································21.2.1二次调节技术的研究发展概况··················································21.2.2二次调节技术的应用······························································41.3二次调节加载系统原理与特点····················································51.3.1二次调节加载系统原理···························································51.3.2二次调节加载系统特点···························································61.4减速器加载系统概述································································71.4.1开放式加载系统····································································71.4.2封闭式加载系统····································································71.5论文主要研究内容···································································82减速器模拟加载试验台组成与原理···············································102.1引言····················································································102.2试验台各部分组成及其功用······················································102.3模拟加载系统原理··································································103减速器加载试验台驱动变速箱的设计············································133.1引言····················································································133.2驱动变速箱的参数计算····························································13大型减速器模拟加载试验台设计23.2.1传动方案的确定···································································143.2.2扭矩的计算·········································································143.2.3最大转速的计算···································································143.3齿轮的设计···········································································153.3.1选择齿轮材料······································································153.3.2确定齿轮传动精度等级··························································153.3.3各轴齿轮中心距的确定··························································163.3.4齿轮齿数及分度圆直径的计算·················································173.3.5齿轮传动几何尺寸计算··························································203.3.6齿轮强度校核······································································243.3.7各轴齿轮中心距的计算··························································313.3.8齿轮齿宽的计算···································································313.4轴的设计··············································································323.5轴的强度校核········································································353.5.1轴的校核·········································································353.5.2轴的校核·········································································374.结论与展望·············································································39致谢························································································40参考文献··················································································41辽宁工程技术大学毕业设计（论文）3摘要对于新设计制造的减速器，需要利用专门的固定试验台对其进行加载试验，检测各项工作性能和可靠性指标是否满足要求。减速器是用于原动机和工作机之间的独立的封闭传动装置。由于减速器具有结构紧凑、传动效率高、传动准确可靠、使用维护方便等特点，故在各种机械设备中应用甚广。对基于二次调节的减速器加载系统进行深入的理论分析，建立减速器加载系统的数学模型，并绘制方框图；减速器试验加载系统主要分为开放式和封闭式两大类。其中进行深入研究二次调节加载系统的目的和意义、原理和应用、二次调节的发展概况。二次调节系统是在恒压网络中，通过调节二次元件斜盘倾角来改变二次元件排量，以适应负载（工作机构）转矩的变化，从而使负载按设定的规律变化。本文系统地对基于二次调节的减速器试验加载系统进行了分析，建立了用于频域分析的传递函数模型，对减速器模拟加载系统的刚度特性进行了分析，设计及校核减速器模拟加载试验台。该试验主要设计驱动变速箱的轴和齿轮等零部件，并对它们做了校核；还建立了较为精确的系统数学模型，得出许多有参考价值的结论，为进一步完善和提高二次调节加载技术提供了依据。关键词：二次调节；加载系统；变速箱；滑移齿轮大型减速器模拟加载试验台设计4ABSTRACTRegardingthenewdesignmanufacturereductiongear,needstousethespecialfixedtestplatformtocarryontheloadingtesttoit,examineseachoperatingperformanceandthereliabletargetwhethersatisfiesrequests.Thereductiongearisusesinbetweentheprimemoverandtheworkingmachineindependencesealtransmissiondevice.Tobasedonthereductiongearloadingsystemwhichtwotimesadjustscarriesonthethoroughtheoreticalanalysis,establishesthereductiongearloadingsystemthemathematicalmodel,anddrawsuptheblockdiagram；Thereductiongearexperimentloadingsystemmainlydividesintoopenstyleandtheenclosedtwobigkinds.Inwhichcarriesonthoroughlystudiesthedevelopmentsurveywhichtwoadjustmentloadingsystemthegoalandthesignificance,theprincipleandtheapplication,twotimesadjust.Inconstantvoltagenetwork,byadjustingthesecondarycomponentswashplateangleplatetochangesecondarycomponentdisplacement,second-conditioningsystemmeetthechangeoftorqueoftheload(institutions),therebyenablingloadchangesaccordingtothesetlawchanges.Thegearboxloadingsystembasedonsecondaryregulationsystemhasbeenanalysedsystematicallyinthispaper.Transmissionfunctionusedforfrequencydomainanalysishasbeensetupandthestiffnesscharacteristicsofthegearboxsimulationloadingsystemhasbeenanalysed,andthenthegearboxsimulationloadingtest-bedisdesignandverified.Shafts,gearsandotherpartsofthedrivengearboxaremainlydesignedinthetrial,andthentheyareverifid；Alsoestablishamoreaccuratemathematicalmodelofthesystem,anddrawmanyconclusionsofvaluablereference.Provideabasisforfurtherrefiningandimprovingsecondaryregulationloadingtechnology.Keywords:secondaryregulation；loadingsystem；gearbox；slipgear辽宁工程技术大学毕业设计（论文）5前言静液传动由于具有功率大、密度大、易于实现工作过程的自动化等优点而被广泛地应用在工程领域中。但由于静液传动存在着漏油、噪声大和效率低等缺点，以及来自于机械传动、电器传动和交流伺服技术快速发展的竞争等原因，进入20世纪90年代以来，其增长速度明显减慢。因此，如何在发挥其自身优势的基础上，借鉴于其他传动技术的优点、克服自身的不足，从而设计出新型的静液传动系统，并不断地使其获得进一步地发展，已经成为当前急需解决的关键问题。二次调节静液传动系统是近年新发展起来的节能系统。它具有一系列的独特特点，越来越引起了人们的重视。二次调节静液传动系统是工作于恒压网络的压力耦联系统，能在四个象限内工作，回收与重新利用系统的制动动能和重物势能；在系统中二次元件能无损地从恒压网络取得能量，因而大大地提高了系统效率；系统中可以同时并联多个负载，在各负载端可分别实现互不相关的控制规律；扩大了系统的工作区域，改善了系统的控制特性，减少了设备总投资，降低了工作过程中的能耗，节约冷却费用。在能源日益紧缺的今天，基于能量回收与重新利用而提出的二次调节技术具有重要的理论研究意义和实际应用价值。国外从70年代末开始此项技术的研究，现已将它应用于造船工业、车辆传动、大型试验台等领域，取得了显著的节能效果。我国从80年代末从事二次调节技术的研究，目前尚处于实验室研究阶段。本文简要回顾了这一领域的发展过程及最新成就，并对基于二次调节的减速器加载试验台驱动单元进行了详细地设计，并对驱动单元的系统刚度特性进行了分析。不当之处希望得到老师的批评指正。