轻型越野车自动分时分动器的设计
摘要
分动器是越野车上将扭矩分配给各驱动桥的部件,越来越多的全时分动器出现在各类越野车上。但是,全时分动器的扭矩分配由差速机构自动完成,扭矩的分配比例以及扭矩的分配时机存在着诸多问题,还有油耗高等劣势。分时分动器则能够很好的给出需要的扭矩分配,但需要驾驶者手动操作。自动分时分动器将能够解决这个问题。
自动分时分动器将变速器输出的动力自动分配到各驱动桥,并进一步增大扭矩。自动分时分动器也是一个齿轮传动系统,它在电控单元的操作下会自动作出对车辆工况的反应,操作换档机构实现自动分时驱动。
统计以往的分动器的研发历史及其结构及功能特点,轻型越野车自动分时分动器需要采用行星齿轮减速机构和金属链传动装置,换档机构使用啮合套与同步器。对行星齿轮的参数进行计算,得到了分时分动器行星齿轮减速机构的主要尺寸。
文中对分动器进行了具体的分类,详尽介绍了当前主流的分动器型式,可以为分动器的进一步深入研究提供一定的帮助。
关键词自动分时分动器;行星减速机构;链传动;同步器
THE ANALYSIS AND DESIGN FOR AUTO PART TIME TRANSFER CASE OF THE SUV
Abstract
The tra
nsfer case could distribute the powerwhich is defere
nt from the tra
nsmissio
n to each drivi
ng axle, a
nd e
nlarge the torque. Tra
nsfer case, also o
ne gear system, fix to the frame solely,which co
n
nect the tra
nsmissio
nwith it's i
nput shaft joi
nt togetherwith the tra
nsmissio
n's output shaft by u
niversal device, a
nd have two or more output shaftwhich co
n
nect to every drivi
ng axle by u
niversal device. Based o
n the developme
nt history a
nd structure a
nd/or fu
nctio
nal characteristics of the tra
nsfer case before, the article a
nalysis a
nd desig
n the auto part time tra
nsfer case of the light-duty go-a
nywherevehicle. By the systematical study a
nd data gatheri
ng of the tra
nsfer case a
nd/or tra
nsmissio
n system, this article place stress o
n the desig
ni
ng of the i
nstitutio
n of the tra
nsfer case. Desig
n adopt skewed tooth pla
net reduci
ng mecha
nism, a
nd chai
n-drive
n 4WD systemwith the sy
nchro
nizi
ng device. It's torque capacity large, light i
nweight, high tra
nsmissio
n efficie
ncy,
noise small
ness, gearshift portability
nicety that thereof merit. This article as ma
ny should compile the k
nowledge system relates tra
nsfer case, supply defi
nite theory gist for the more desig
n a
nd research of the part time tra
nsfer case. Keywords auto part time tra
nsfer case, pla
net reduci
ng mecha
nism, chai
n gear, sy
nchro
nizi
ng device 目录 摘要I Abstract II 第1章绪论1 1.1课题研究的目的和意义1 1.2国内外文献综述5 1.3本研究课题主要研究内容11 第2章自动分时分动器的组成及其工作原理12 2.1自动分时分动器的组成12 2.2自动分时分动器的工作原理24 2.3本章小结25 第3章自动分时分动器的结构设计26 3.1自动分时分动器结构方案27 3.2自动分时分动器的轴及齿轮型式27 3.3换档机构28 3.4轴承形式28 3.5自动分时分动器的壳体28 3.6润滑及密封28 3.7自动分时分动器的齿轮参数设计29 3.7.1行星轮系的类型选择29 3.7.2行星轮系各轮齿数和行星轮数目的选择30 3.7.3行星轮系的均载31 3.7.4分动器的齿轮尺寸初选31 3.7.5行星齿轮尺寸参数计算32 3.7.6分动器齿轮的强度计算与材料选择35 3.8分动器的轴与轴承39 3.8.1分动器的轴39 3.8.2变速器轴承39 3.9同步器的选用39 3.10本章小结40 结论41 致谢42 参考文献43
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nsfer case could distribute the powerwhich is defere
nt from the tra
nsmissio
n to each drivi
ng axle, a
nd e
nlarge the torque. Tra
nsfer case, also o
ne gear system, fix to the frame solely,which co
n
nect the tra
nsmissio
nwith it's i
nput shaft joi
nt togetherwith the tra
nsmissio
n's output shaft by u
niversal device, a
nd have two or more output shaftwhich co
n
nect to every drivi
ng axle by u
niversal device. Based o
n the developme
nt history a
nd structure a
nd/or fu
nctio
nal characteristics of the tra
nsfer case before, the article a
nalysis a
nd desig
n the auto part time tra
nsfer case of the light-duty go-a
nywherevehicle. By the systematical study a
nd data gatheri
ng of the tra
nsfer case a
nd/or tra
nsmissio
n system, this article place stress o
n the desig
ni
ng of the i
nstitutio
n of the tra
nsfer case. Desig
n adopt skewed tooth pla
net reduci
ng mecha
nism, a
nd chai
n-drive
n 4WD systemwith the sy
nchro
nizi
ng device. It's torque capacity large, light i
nweight, high tra
nsmissio
n efficie
ncy,
noise small
ness, gearshift portability
nicety that thereof merit. This article as ma
ny should compile the k
nowledge system relates tra
nsfer case, supply defi
nite theory gist for the more desig
n a
nd research of the part time tra
nsfer case. Keywords auto part time tra
nsfer case, pla
net reduci
ng mecha
nism, chai
n gear, sy
nchro
nizi
ng device 目录 摘要I Abstract II 第1章绪论1 1.1课题研究的目的和意义1 1.2国内外文献综述5 1.3本研究课题主要研究内容11 第2章自动分时分动器的组成及其工作原理12 2.1自动分时分动器的组成12 2.2自动分时分动器的工作原理24 2.3本章小结25 第3章自动分时分动器的结构设计26 3.1自动分时分动器结构方案27 3.2自动分时分动器的轴及齿轮型式27 3.3换档机构28 3.4轴承形式28 3.5自动分时分动器的壳体28 3.6润滑及密封28 3.7自动分时分动器的齿轮参数设计29 3.7.1行星轮系的类型选择29 3.7.2行星轮系各轮齿数和行星轮数目的选择30 3.7.3行星轮系的均载31 3.7.4分动器的齿轮尺寸初选31 3.7.5行星齿轮尺寸参数计算32 3.7.6分动器齿轮的强度计算与材料选择35 3.8分动器的轴与轴承39 3.8.1分动器的轴39 3.8.2变速器轴承39 3.9同步器的选用39 3.10本章小结40 结论41 致谢42 参考文献43
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