工程设计学报2017，Vol.24Issue(2)：182-186,5.DOI:10.3785/j.issn.1006-754X.2017.02.009
单、双径向轴承安装时三叉式万向联轴器的附加弯矩分析
Additional bending moment analysis of the trigeminal universal joint installed by single or twin radial bearing
摘要
Abstract
To find out the causes of vibration and noise of the trigeminal universal joint which appeared in the installation and use process, the additional moment distribution with the varies of the input shaft angular and the deflection angle was analyzed.Kinematics diagrams of the trigeminal universal joint when the output shaft installed by single radial bearing or twin radial bearing were established.The system coordinates were established under the two installation ways, and the motion equations were established by the direction cosine matrix tools.It indicated that the trigeminal universal joint installed by the single radial bearing was an approximately isometric speed transmission, and was a constant velocity transmission with twin radial bearing installed.Furthermore, the additional moment component on the input shaft and the output shaft was analyzed under the two installation ways.According to the virtual displacement principle, the additional moment on the tripod universal joint when the output shaft installed by twin radial bearing and single radial bearing were determined.When installed by single radial bearing, the deflection moment exists and the vibration frequency of additional moment was three times of the input shaft as a sine curve.The variation trend of the additional moment was straight up with the increase of deflection angle.When installed by twin radial bearing, the deflection moment was zero and the additional moment increased gradually with the increase of deflection angle but did not fluctuate.The analysis revealed that additional moment existed in the trigeminal universal joint system under both installation ways would produce bending vibration.This study is of great significance to study the causes of vibration and determine the nonlinear dynamics of the system.关键词
三叉式万向联轴器/单、双径向轴承/偏转弯矩/附加弯矩Key words
trigeminal universal joint/single & twin radial bearing/deflection moment/additional bending moment分类
机械制造引用本文复制引用
李松梅,李帅帅,常德功..单、双径向轴承安装时三叉式万向联轴器的附加弯矩分析[J].工程设计学报,2017,24(2):182-186,5.基金项目
国家自然科学基金资助项目(50975147) （50975147）
山东省科技发展计划项目(2013GGX10305) （2013GGX10305）
山东省自然科学基金资助项目(ZR2015EM037,ZR2016EEP12) （ZR2015EM037,ZR2016EEP12）
