摘要
重载车用球笼式等速万向节传动总成传递的力和转矩比普通汽车的大,且工况要求较高,在冲击载荷下,有可能发生中间轴的静强度破坏或者疲劳失效,以及保持架在大轴间角下的破损。因此,对其中间轴和保持架在极限工况下的强度研究非常重要。以某重载车用球笼式等速万向节传动总成为研究对象,首先,对中间轴进行受力分析和有限元仿真,并将结果进行对照,以验证模型的准确性;其次,对不同轴间角下保持架进行仿真分析,得出保持架的应力分布规律;最后,进行扭转静强度试验与保持架硬度试验。结果表明,中间轴、保持架在正常工况下均可满足使用要求,但在极端工况下可能发生保持架破损。可为重载车用球笼式等速万向节传动总成的设计和制造提供相应参考。
The force and torque transmitted by the ball cage constant velocity universal joint transmission assembly of heavy⁃duty vehicles are greater than that of ordinary vehicles,and the working conditions have higher requirements.Under the impact load,static strength failure or fatigue failure of the intermediate shaft may occur,as well as the cage damage under the bigger interaxial angles.Therefore,it is very important to study the strength of the intermediate shaft and the cage in the ultimate working condition.In this study,the ball cage constant velocity universal joint transmission assembly for a heavy⁃duty vehicle was taken as the object.Firstly,the force analysis and the finite element simulation were carried out on the intermediate shaft and the results were compared to verify the model accuracy.Secondly,the stress distribution and variation law of the cage were obtained through simulation analysis under the different interaxial angles.Finally,the torsional static strength test and the cage hardness test were carried out.The results show that the intermediate shaft and the cage meet the requirements under normal working conditions,but the cage may be broken under extreme working conditions.This research can provide reference for the design and manufacture of ball cage constant velocity universal joint transmission assembly of heavy⁃duty vehicles.
作者
宋有硕
苗家俊
卢曦
SONG YouShuo;MIAO JiaJun;LU Xi(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《机械强度》
CAS
CSCD
北大核心
2024年第4期816-822,共7页
Journal of Mechanical Strength
基金
国家自然科学基金项目(51975379)资助。
关键词
万向节
中间轴
保持架
有限元仿真
强度
Universal joint
Intermediate shaft
Cage
Finite element simulation
Strength
