摘要
汽车主减速器是汽车驱动桥中非常重要的传力部件,主减速器也是汽车上最关键的部件之一。
本次的设计是为汽车设计一个结构合理、工作性能可靠的主减速器。该主减速器将设计成单级圆柱齿轮减速器。与多级主减速器相比,可以保证离地间隙较小,但不影响传动比,此外单级主减速器还具有很多优点,比如结构紧凑,噪声小,以及使用寿命长。本次设计包括了单级主减速器的各零部件的设计以及其相应参数的设计和校核过程。设计的内容为:主减速器齿轮和轴的设计,主减速器结构的选择。主减速器在汽车传动系中的主要作用是减小转速、增大扭矩,通过齿数少的圆柱齿轮与齿数多的圆柱齿轮啮合传动。
设计好减速器后通过ADAMS软件对设计好的准双曲线圆柱齿轮仿真,对建立好的齿轮模型添加约束使之运动,结合实际计算和测试的结果,采用虚拟样机技术研究准双曲线齿轮,将实际设计时计算出的结果和动力学仿真得出的结果对比分析,得出主减速器准双曲面齿轮运动和工作状况,为本次设计提供相应的理论依据。
关键词:主减速器传动比典型工况分析动力学仿真
Abstract:
Automobile reductio
n fi
nal drive is o
ne of the best impossible parts i
n automobile geari
ng.It ca
n cha
nge speed a
nd drivi
ng tuistwithi
n a big scope. Theaim is tothecartobereaso
nable,The graduatio
n desig
n is desig
ned for the car reaso
nable structure, reliable performa
nce of the mai
n reducer.Thismai
ngearboxiscomposedofalevelofgearreductio
nspareswiththeMulti- stage mai
n reducer,this ki
nd of desig
n Ca
n e
nsure that the grou
nd cleara
nce is small.But does
not affect the tra
nsmissio
n ratio.after that, si
ngle-stage mai
n reducer also has ma
ny good adva
ntages,for example the
noise of si
ngle-stage mai
n reducerissmaller,ca
n use alo
ngtime a
ndsoo
n.Thedesig
nmai
nlyi
ncludes:Mai
ngearboxstructurechoice,verificatio
n of the correspo
ndi
ng parameters.Themai
n use of thereduceri
nthetra
nsmissio
nli
nesusedtoreducevehiclespeed,also i
ncreasedthetorque.Through the small
number of teeth to promote the more
number of cyli
ndrical gears cyli
ndrical gear drive. The dy
namic model ofhypoidgearsisestablishedby Adams software,a
nd the drivi
ng force are co
nsidered.The
n. Add a co
nstrai
nt o
n the established gear model to make it move.fi
nally,throughthecomparativea
nalysisoftheactualtesti
ngresults,a
ndthedy
namicsimulatio
nresults.The actual compare of the desig
n by the calculated results a
nd so o
n.simulatio
n of the results the
n a
nalysis it.Verify the desig
n by theoretical basis. keywords : Mai
nreducer Gear Check tra
nsmissio
n ratio dy
namics simulatio
n 目录 摘要1 Abstract: 2 第1章引言1 1.1课题研究的目的及意义1 1.2汽车主减速器发展现状以及发展趋势1 1.3课题研究的内容2 1.3.1主减速器齿轮的类型2 1.3.2主减速器的减速型式3 1.3.3汽车主减速器的仿真3 第2章汽车主减速器设计计算4 2.1主减速器齿轮的设计4 2.1.1选择齿宽系数4 2.1.2压力角α的选择4 2.1.3选择主、从动圆柱齿轮齿数4 2.1.4初选螺旋角4 2.1.5其他尺寸的选择5 2.1.6齿面接触疲劳强度的计算5 2.1.7齿轮相关参数计算7 2.1.8按齿根弯曲强度设计7 2.1.9齿轮几何尺寸计算9 2.2齿轮轴的设计12 2.2.1轴直径的设计13 2.2.2计算轴各段长度14 2.2.3轴的强度校核16 2.3主减速器其他零部件的设计19 2.3.1主减速器概述19 2.3.2主减速器方案的选择20 2.3.3主减速器零部件设计20 第3章汽车主减速器的仿真29 3.1 ADAMS仿真概述29 3.2主减速器齿轮运动仿真29 3.3结论分析33 致谢34 参考文献35 附表1 36 附表2 37
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n fi
nal drive is o
ne of the best impossible parts i
n automobile geari
ng.It ca
n cha
nge speed a
nd drivi
ng tuistwithi
n a big scope. Theaim is tothecartobereaso
nable,The graduatio
n desig
n is desig
ned for the car reaso
nable structure, reliable performa
nce of the mai
n reducer.Thismai
ngearboxiscomposedofalevelofgearreductio
nspareswiththeMulti- stage mai
n reducer,this ki
nd of desig
n Ca
n e
nsure that the grou
nd cleara
nce is small.But does
not affect the tra
nsmissio
n ratio.after that, si
ngle-stage mai
n reducer also has ma
ny good adva
ntages,for example the
noise of si
ngle-stage mai
n reducerissmaller,ca
n use alo
ngtime a
ndsoo
n.Thedesig
nmai
nlyi
ncludes:Mai
ngearboxstructurechoice,verificatio
n of the correspo
ndi
ng parameters.Themai
n use of thereduceri
nthetra
nsmissio
nli
nesusedtoreducevehiclespeed,also i
ncreasedthetorque.Through the small
number of teeth to promote the more
number of cyli
ndrical gears cyli
ndrical gear drive. The dy
namic model ofhypoidgearsisestablishedby Adams software,a
nd the drivi
ng force are co
nsidered.The
n. Add a co
nstrai
nt o
n the established gear model to make it move.fi
nally,throughthecomparativea
nalysisoftheactualtesti
ngresults,a
ndthedy
namicsimulatio
nresults.The actual compare of the desig
n by the calculated results a
nd so o
n.simulatio
n of the results the
n a
nalysis it.Verify the desig
n by theoretical basis. keywords : Mai
nreducer Gear Check tra
nsmissio
n ratio dy
namics simulatio
n 目录 摘要1 Abstract: 2 第1章引言1 1.1课题研究的目的及意义1 1.2汽车主减速器发展现状以及发展趋势1 1.3课题研究的内容2 1.3.1主减速器齿轮的类型2 1.3.2主减速器的减速型式3 1.3.3汽车主减速器的仿真3 第2章汽车主减速器设计计算4 2.1主减速器齿轮的设计4 2.1.1选择齿宽系数4 2.1.2压力角α的选择4 2.1.3选择主、从动圆柱齿轮齿数4 2.1.4初选螺旋角4 2.1.5其他尺寸的选择5 2.1.6齿面接触疲劳强度的计算5 2.1.7齿轮相关参数计算7 2.1.8按齿根弯曲强度设计7 2.1.9齿轮几何尺寸计算9 2.2齿轮轴的设计12 2.2.1轴直径的设计13 2.2.2计算轴各段长度14 2.2.3轴的强度校核16 2.3主减速器其他零部件的设计19 2.3.1主减速器概述19 2.3.2主减速器方案的选择20 2.3.3主减速器零部件设计20 第3章汽车主减速器的仿真29 3.1 ADAMS仿真概述29 3.2主减速器齿轮运动仿真29 3.3结论分析33 致谢34 参考文献35 附表1 36 附表2 37
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