| 引用本文: | 董皓,方宗德,杜进辅.双路功率分流传动系统的静态均载特性分析[J].哈尔滨工业大学学报,2013,45(9):94.DOI:10.11918/j.issn.0367-6234.2013.09.017 |
| DONG Hao,FANG Zongde,DU Jinfu.Static load sharing characteristics analysis for powersplit transmission system[J].Journal of Harbin Institute of Technology,2013,45(9):94.DOI:10.11918/j.issn.0367-6234.2013.09.017 |
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| 摘要: |
| 为了解决双路功率分流系统的载荷均匀分配的问题,建立该系统的力学模型. 首先,采用轮齿几何接触分析和承载接触分析方法对齿轮副实际啮合过程进行仿真,得到齿轮副的时变啮合刚度,提高了计算的精确度,然后,根据系统构成功率流闭环的特点推导出系统的变形协调条件,并结合力矩平衡方程和弹性支撑条件计算各齿轮副传递的扭矩,得到系统的均载系数,最后,分析了浮动轮基于花键间隙和径向限位环约束浮动时对均载特性的影响. 结果表明：误差对系统均载特性共同起作用,单独减小某一误差的影响,并不能完全达到均载,基本构件浮动有利于提高均载性能. 通过花键间隙和径向限位环的辅助均载作用明显改善了系统的均载特性. 与相关实验数据对比,验证了该方法的正确性. |
| 关键词: 功率分流 承载接触分析 变形协调 力矩平衡 间隙浮动 限位环 均载 |
| DOI：10.11918/j.issn.0367-6234.2013.09.017 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(51175423). |
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| Static load sharing characteristics analysis for powersplit transmission system |
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DONG Hao1,2, FANG Zongde2, DU Jinfu2
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(1.Northwest Institute of Mechanical ＆ Electrical Engineering, China North Industries Group Corporation, 712099 Xian yang Shanxi China; 2.School of Mechanical Engineering, Northwestern Polytechnical University, 710072 Xi’an, China)
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| Abstract: |
| To implement the uniform load distribution of the power-split transmission, a pseudo static model is built. First, according to the method of theoretical analysis of tooth contact analysis (TCA) and loaded tooth contact analysis (LTCA), the actual meshing process of each gear pair is simulated, and the fitting curves of time-varying mesh stiffness are obtained, which can improve the numerical precision. Next, according to the closed-loop characteristic of system power flow, the conditions for deformation compatibility of torsion angle are proposed, which are then combined with the torque equilibrium conditions and elastic support conditions to calculate the transmission torque of each gear pair. Finally, the load-sharing coefficient of the system is obtained, and the influence of the floating pinion based on spline clearance floating and constrained by the radial spacing ring is analyzed. The results show that the errors collectively influence the load sharing characteristics, only reducing a certain error never fully reach the perfect loading sharing characteristics. The floating component can significantly improve the load sharing characteristics. By comparing the theoretical data with the experimental data, the correctness of the method proposed is verified. |
| Key words: power split loaded tooth contact analysis deformation compatibility moment equilibrium clearance floating radial spacing ring load sharing
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