中国机械工程 ›› 2012, Vol. 23 ›› Issue (3): 346-348.

• 车辆工程 • 上一篇    下一篇

越野汽车双联非圆行星齿轮差速器的研究

贾巨民;高波
  

  1. 军事交通学院,天津,300161
  • 出版日期:2012-02-10 发布日期:2012-02-15
  • 基金资助:
    国家自然科学基金资助项目(50875260)
    National Natural Science Foundation of China(No. 50875260)

A Novel Noncircular Planetary Differential for Off-road Vehicles

Jia Jumin;Gao Bo
  

  1. University of Military Transportation, Tianjin, 300161
  • Online:2012-02-10 Published:2012-02-15
  • Supported by:
    National Natural Science Foundation of China(No. 50875260)

摘要:

提出了一种新型非圆行星齿轮差速器,将其应用于越野汽车分动器中,可以实现两输出轴扭矩变比例分配,相当于增大了差速器的锁紧系数,即增加了差速器的防滑功能,从而有望提高车辆的越野通过性。差速器结构紧凑,两个非圆中心齿轮形状完全相同,双联非圆行星齿轮形状一致,相位相差90°,采用三组双联行星齿轮实现均载,工艺性好。通过传动原理分析,给出了非圆齿轮节曲线的设计方法,并以渐开线齿形为例进行了设计计算及样机试制,差速器理论锁紧系数达到3.45。

关键词:

Abstract:

With three noncircular gear items integrated, a new noncircular planetary differential was put forward, which may deliver variable proportional torque onto its two output axes and help to improve passing capacity for off-road vehicles. The new differential has two uniform centre gears, meshing with three double planetary gears, the double planetary gears have the same features with an angular difference of 90°. The driving theory and the design method of pitch curves were presented, a case study of gears with involute tooth profile was illustrated, which shows the effectiveness of the new differential. 

Key words: noncircular gear, planetary, differential, off-road vehicle

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