捷达轿车盘式制动器的设计(有全套图纸)

本科毕业设计（论文）通过答辩-1-摘要汽车制动系统是汽车各个系统中最为重要的。如果制动系统失灵，那么结果将会是毁灭性的。制动器实际上是一个能量转化装置，这种转化实际上是把汽车的动能转换为汽车的热能挥发出去，当制动器制动时，驱动程序来命令十倍于以往的力来使汽车停止下来。制动系统可以发挥上千磅的压力来分配给四个制动器。盘式制动器又称为碟式制动器，这种制动器散热快、重量轻、构造简单、调整方便，特别是高负载时耐高温性能好，制动效果稳定，而且不怕泥水侵袭，在冬季和恶劣路况下行车，盘式制动比鼓式制动更容易在较短的时间内令车停下。有些盘式制动器的制动盘上还开了许多小孔，加速通风散热，提高制动效率。由制动器设计的一般原则，综合考虑制动效能、制动效能稳定性、制动间隙调整简便性、制动器的尺寸和质量及噪声等诸多因素设计本产品。在设计中涉及到同步系数的选取、制动器效能因素的选取、制动力矩的计算，以及制动器主要元件选取，最后对设计的制动器进行校核计算。关键词：制动系统，盘式制动器,同步系数本科毕业设计（论文）通过答辩-2-AbstractThebrakingsystemisthemostimportantsystemincar.Ifthebrakesfail,theresultcanbedisastrous.brakesareactuallyenergyconversiondevices,whichconvertthekineticenergyofthevehicleintothermalenergy.whensteppingonthebrakes,thedriverscommandsastoppingforcetentimesaspowerfulastheforcethatputsthecarinmotion.thebrakingsystemcanexertthousandsofpoundsofpressureoneachofthefourbrakes.Thediscbrakeiscalledthesmalldishtypebrake,thiskindofbrakeradiatesquickly,theweightlight,thestructuresimple,theadjustmentisconvenient,speciallywhenhighloadtheperformanceisgood,appliesthebraketheeffecttobestable,moreoverdidnotfearthespateattack,underthewinterandthebadstateofroadsthedriving,thedisctypeappliesthebrakecomparedtothedrumtypetoapplythebraketostopeasilyintheshorttimethevehicle.Onsomediscbrakedischasalsoopenedmanyeyelets,acceleratestoventilatetheradiation,enhancesthebrakeefficiency.Theprincipleofthedesigntothebrakesystem.Synthesizetheconsiderationoftheeffecttothebrakesystem,thestabilityoftheeffecttothebrakesystem,thesimpleandconvenientofthebrakecleftadjusting,thesizeandquantityofthebrakesystem,thesameofthebrakesystemandsoontodesigntheproduct.Inthisdesign,adheretosynchronouslythecoefficientselectsbyexaminations,affectfactorselectsofthebrakesystem.Thecalculationofthebrakemoment,andtheselectsoftheimportantpartsofthebrakesystem,checkthewholedesignatlast.Keywords：brakesystem,discbrake,Synchronouscoefficient本科毕业设计（论文）通过答辩-3-目录摘要···························································································································IAbstract························································································································II第1章绪论···············································································································11.1盘式制动器的介绍与特点··············································································11.2国内汽车盘式制动器应用情况······································································2第2章制动器的结构与设计原则···········································································42.1汽车盘式制动器···························································································42.2捷达轿车盘式制动器的结构与工作原理···················································52.3制动器设计的一般原则···············································································72.3.1制动驱动机构的选择············································································82.3.2制动管路的选择····················································································8本章小结··············································································································10第3章制动器设计·································································································113.1盘式制动器主要元件····················································································113.1.1制动盘··································································································113.1.2制动钳··································································································123.1.3制动块··································································································133.1.4摩擦材料······························································································133.1.5制动器间隙··························································································133.2同步附着系数的选取····················································································143.3制动器效能因数····························································································163.4制动器受力分析与力矩计算········································································163.4.1制动受力分析······················································································163.4.2制动力矩的计算··················································································173.5摩擦衬块的摩擦特性····················································································183.6制动器液压驱动机构的设计计算································································20本章小结··············································································································21第4章校核与技术要求·························································································224.1制动器的热容量和温升的核算····································································224.2制动器的调试································································································234.2.1制动盘的技术要求··············································································234.2.2制动钳