摘要
为能更有效地分析滚动轴承支撑人字齿轮传动系统的振动传递特性,提出基于轮齿承载接触分析、同时考虑齿轮轴扭转变形及安装误差的人字齿轮左右轮齿啮合刚度计算方法,建立综合考虑时变啮合刚度、啮入冲击激励的人字齿轮啮合型弯-扭-轴耦合振动模型。在提出的考虑轴承内部载荷分布的滚动轴承支撑系统载荷分配计算方法以及包含承载滚子、内外圈的滚动轴承动力学模型基础上,较完整地分析人字齿轮传动系统的齿对啮合振动经由齿轮轴分配到支撑滚动轴承,最后再由轴承内圈传递到外圈的传递过程。以某滚动轴承支撑人字齿轮传动系统为实例进行的仿真计算结果表明:该振动传递计算方法较科学合理地计算出人字齿轮系统的动载荷传递过程,更精确地得到箱体轴承孔内壁的振动载荷,为下一步有效地分析人字齿轮箱体振动特性提供了保障。同时滚动轴承在传递载荷的过程中起到类似浮筏隔振系统的隔振降噪作用。
In order to accurately analyzing on power transmission processing of herringbone gear trains system with rolling bearing support, meshing stiffness calculation method is put forward based on load tooth contact analysis and considering shaft torsional deformation and misalignment. Herringbone gear vibration model is established considering meshing stiffness and comer mesh impact excitation. Based the method which considering bearing internal load distribution and the rolling bearing dynmaic model contain inner ring, roller and outer ring, completely analyzing the power transmission processing from meshing gear pair to rolling bearing, and to internal walls of gearbox bearing holes. Taking the herringbone gear transmission system as an example, the results consistently indicate that the method can analyzing the transmission processing of dynamic loads more scientific and reasonable, obtaining the dynamic loads of gearbox bearing holes more accurately, and providing a guarantee for more effectively analysis herringbone gearbox vibration characteristics. And also, rolling bearing in the process of load transfer has played a similar role of vibration isolation floating raft system.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2014年第3期25-32,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金资助项目(51175423)
关键词
人字齿轮传动系统
滚动轴承
载荷分配
动力学模型
动力传递
herringbone gear transmission system
rolling bearing
load distribution
dynamic model
power transmission
