4_4载货汽车的设计要点技术分析

:2007-09-04:(1972-),,,,44鲍晓东(,100042):以一吨44载货汽车的设计为例,对特殊性能进行专门系统的理论分析,寻求比较合适的44载货汽车的设计要点通过计算分析,得出在轴距的选择轮距的确定动力总成及各大总成的布置横向稳定杆的选择汽车的摆振控制等方面应重点考虑,才能使44载货汽车设计趋于合理:载货汽车;轴距;轮距;动力总成;横向稳定杆;摆振:U469.2:B:1671-6558(2007)04-11-06TechnicalAnalysisofKeyPointsin44TruckDesignBaoXiaodong(Beijingpolytechniccollege,Beijing100042,China)Abstract:Takingthedesignofoneton44truckasanexample,thisarticletheoreticallyanalyzesthespecialperformanceofthesystemandseekskeypointsappropriateforthedesignofoneton44truck.Accordingtotheanalysisoncalculation,thefollowingcanbeworkedout,suchasthechoiceofwheelbase,thedeterminationofwheeltread,thesetupofpowerassemblyandothermajorassemblies,thedecisionofcrosswisestabilizingbar,thecontrolofshimmyandsoon,whichmustbetakenintoconsiderationtorationalizethedesignof44trucks.Keywords:truck;wheelbase;wheeltread;powerassembly;crosswisestabilizingbar;shimmy044,,,4444,,4414444,,1.1,44,4464200710北京工业职业技术学院学报JOURNALOFBEIJINGPOLYTECHNICCOLLEGE4Vol.6Oct.20071.1.1,!∀,:,0.7,,440.18~0.26;//,,!∀,,,,,44,1144,,:1sin(alf)+Fj+2N2-N1cos(alf)=0(1)1N1cos(alf)+N1sin(alf)+N2-G=0(2)2D2+Ga+1N1D2-FjH0-N2L=0(3)sin(alf)=1-2Hw1D(4)cos(alf)=2DHw1(D-Hw1)(5)Fj=jG(6)N1N2FjG,(a-jH0)(2-1)-2D2-L(1+j)1-2Hw1D+a-jH0)1+12)+2D2-L(1-1j)2DHw1(D-Hw1)+1D2(j+2)=0(7)2244,,:1N1+Fj+2N2sin(alf)-N2cos(alf)=0(8)N1+2N2*cos(alf)+N2sin(alf)-G=(9)1N1D2+Gacos(bt)+H0sin(bt)-12北京工业职业技术学院学报6Fj(H0cos(bt)-asin(bt))-N2Lsin(alf+bt)-2N2(Lcos(alf+bt)-D2=0(10)sin(bt)G=Hw2L(11)cos(bt)=1LL2-Hw22(12)sin(alf)=1-2Hw2D(13)cos(alf)=2DHw2(D-Hw2(14)Fj=jG(15)N1N2FjG,[-1D2(2+j)-L(1+j)1LL2-Hw22+2(1+j)LHw2L(1-2)(a-jH0)1LL2-Hw22+(1-2)(H0+ja)Hw2L]1-2Hw2D+[(1-2j)D2+L(1+j)Hw2L-2(1+j)L1LL2-Hw2-(a-jH0)1LL2-Hw2(1+12)+(H0+ja)Hw2L(1+12)]2DHw2(D-Hw2)+2(1+j)D2=0(16):a#;L#;1#;2#;D#;H0#;Hw1#;Hw2#;G#;Fj#;N1#;N2#;j#,,,,,1.1.1.1(1)2500mm(8.50-16)889mm,500mm550mm1300mm,,950.7mm,,296.1mm,0.38(2)2850mm(8.50-16)889mm,500mm650mm1550mm,,1130mm,,296.8mm,0.397(3)3100mm889mm,500mm750mm1700mm,,1260mm,,297.2mm,0.406(4)3500mm889mm,500mm900mm1950mm,,1460mm,,297.9mm,0.4171.1.1.2(1)2500mm(8.50-16)889mm,500mm700mm,550mm1300mm,,,,(2)2850mm(8.50-16)889mm,500mm700mm,650mm1550mm,,,,1.1.1.3(1)2500mm500mm,(7.50-16)815mm,550mm1300mm,,968.8mm,,279.4mm,0.3875(2)2850mm500mm,(7.50-16)815mm,134鲍晓东:44载货汽车的设计要点技术分析700mm1550mm,,1148.25mm,,280.2mm,0.4029(3)3100mm500mm,(7.50-16)815mm,750mm1700mm,,1276.3mm,,280.57mm,0.4117:,;;,;,,1.1.2,,1.1.3,,1.244,,,,,,,,,,,,,1.344,,44,,244,442.1,,;,,44,,,,,,,,19%-59%,41%-81%,a=(0.41-0.81)L,2850mm3100mm,,,8.50-162.2,2000mm,1600-1700mm2.3,,,(41%-60%),(900mm-1000mm),1000mm,,(562,30,-128),3∃,10∃,18∃,,314北京工业职业技术学院学报64,,,(3),,4∃,,5∃,5∃,,4.5∃,,5.4∃,12.6∃,,,,(4),2850mm,1680mm,345mm,,,2.4,,,,,,,,392mm342mm,,,,359mm2.5,#Mi,[#Xi,#Z0i()Z1i()]2.5.12.5.1.1McMc=%26i=1Mi=2370(kg)McrMcr=%26i=1Mi&XiL=920(kg)L,L=2850(mm)McfMcf=Mc-Mcr=1450(kg)2.5.1.2MtMt=%28i=1Mi=3565(kg)MtrMtr=%28i=1Mi&XiL=1815(kg)MtfMtf=Mt-Mtr=1750(kg)154鲍晓东:44载货汽车的设计要点技术分析2.5.1.3Hg0Hg0=%26i=1Mi&ZQiMt=885(mm)2.5.1.4Hg1Hg1=%28i=1Mi&ZQiMt=927(mm)2.5.2,=391.35mm=215.1mm,=0.242D2.6C1=5072/93=54.54N/mC2=8992/81=110N/m=28128N=840mm,=928mmC1=12B12C1=19240877.42N&mmC2=12B22C2=47365120N&mm28mm,C1=12B12C2=37114560N&mm(C1+C1)C2=1.192.72.5o1.5o,,3,,,44:[1].[M].:,2006[2].[M].:,2007[3].[M].:,2005[4].[M].:,2002[5].[M].:,2005[6].[M].:,2007[7].[M].:,2006(责任编辑:王佼)(上接第10页),,,,,:[1].[J].,2002,(5)[2].[J].,2005,(1)[3].[J].,2006,(4)(责任编辑:王佼)16北京工业职业技术学院学报6