面齿轮轴间限滑差速器构型设计与性能分析  

Configuration Design and Performance Analysis of Inter-axle Limited Slip Differential with Face Gears

作　　者：彭先龙[1] 吴桂晨 Peng Xianlong;Wu Guichen(College of Mechanical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054

出　　处：《机械传动》2024年第8期9-17,共9页Journal of Mechanical Transmission

基　　金：陕西省自然科学基础研究计划项目(2020JM-521)。

摘　　要：为解决现有轴间限滑差速器限滑能力有限、构型复杂且加工困难等问题,提出了一种新型的面齿轮轴间限滑差速器设计方案。对差速器构型原理和运动特性进行理论分析,建立了面齿轮轴间限滑差速器的力学平衡方程和锁紧系数理论模型;基于面齿轮加工成型原理和轴间差速器工作特性,设计搭建了三维实体模型和Adams虚拟样机模型,并利用Adams仿真软件进行了多体动力学分析。结果表明,面齿轮轴间限滑差速器对前后轴的锁紧系数分别可达到6.5和5;在良好路面行驶时,前后轴输出转矩与预设转矩分配比40∶60基本吻合;在双附着系数路面行驶时,可迅速锁紧打滑侧车轴并将转矩更多分配至未打滑侧车轴,实现转矩分配的自动调节,对前后轴的最大转矩分配分别可达73%和79%。结果验证了面齿轮轴间限滑差速器的可行性,为面齿轮轴间限滑差速器的设计应用提供了依据。In order to solve the problems of limited slip limiting ability,complex configuration and diffi⁃cult manufacturing of inter-axle limited slip differentials,a new design scheme of inter-axle limited slip differ⁃entials with face gears is proposed.By analyzing the configuration principle and motion characteristics of the dif⁃ferential,the mechanical balance equation and locking coefficient theoretical model of the differential are estab⁃lished.Based on the machining principle of face gears and the working characteristics of differentials,the 3D en⁃tity model and Adams virtual prototype are built.The multi-body dynamics is analyzed by Adams simulation software.The results show that the locking ratio of differentials to the front and rear axles can reach 6.5 and 5.When travelling on a good road,the output torque of the front and rear axles is basically consistent with the pre⁃set torque distribution ratio of 40∶60.When travelling on the double-adhesion-coefficient road surface,the slip⁃ping axle can be locked quickly,more torque can be distributed to the non-slipping axle,and the torque distri⁃bution to the front and rear axles can reach 73%and 79%respectively.The results verify the feasibility of the in⁃ter-axle limited slip differential with face gears,and provide a basis for its design and application.

关 键 词：限滑差速器 轴间差速器 面齿轮 锁紧系数 动力学仿真 

分 类 号：U463.218.4[机械工程—车辆工程]