摘要
目前对非密封式十字万向轴所产生的运动磨损机理研究较少。为此,建立了十字万向轴多体动力学仿真物理模型,研究了中间轴与上接头、下接头共轭运动副之间的运动规律及其啮合面之间接触力和摩擦力的变化规律,对比分析了现场测试与理论计算的结果。分析结果表明:工作时,十字万向轴啮合面之间先产生法向碰撞后达到相对稳定的啮合状态,再沿着轴向与切向的合成方向形成周期性往复滑动摩擦,并最终使其端面与侧面出现严重磨损;接触力与摩擦力在啮合面产生碰撞时,呈现无规律分布状态,在达到相对稳定的啮合状态后,首先出现峰值,然后呈现先减小后增大的周期性变化规律。所得结论可为十字万向轴啮合面耐磨性结构优化设计提供理论参考。
The kinematic wear mechanism of the non-sealed cross cardan shaft has been rarely reported.In this study,a multi-body dynamics simulation physical model of the cross cardan shaft was developed to investigate the motion laws of the conjugate motion pairs between the intermediate shaft and the upper joint and between the intermediate shaft and the lower joint,and the change law of the contact and friction forces between the mating surfaces.The field testing results were compared with the theoretical calculation results.It is found that the collision in the normal direction between the mating surface of the cross cardan shaft occurs before the mating surfaces reach a stable mating status.Subsequently,periodic reciprocating sliding is observed in the resultant direction of the tangent and axial directions,which leads to severe wear of the end and side surfaces.The contact and friction forces present no regular distribution upon the collision of the mating surfaces.Nonetheless,the force peak occurs after the stable mating status is reached and then the forces are seen with periodic variations of first decreasing and then increasing.The research findings provide theoretical references for structural design optimization to improve the wear tolerance of the mating surfaces of the cross cardan shaft.
作者
张锐尧
叶道辉
朱忠喜
全兵
肖平
关勤勤
明瑞卿
Zhang Ruiyao;Ye Daohui;Zhu Zhongxi;Quan Bing;Xiao Ping;Guan Qinqin;Ming Ruiqing(Sinopec Oilfield Equipment Corporation;School of Petroleum Engineering,Yangtze University;PetroChina Research Institute of Petroleum Exploration and Development)
出处
《石油机械》
北大核心
2023年第7期75-81,共7页
China Petroleum Machinery
基金
国家自然科学基金联合基金项目“海相深层高温高压钻完井工程基础理论及控制方法”(U19B6003-05)
中国石油化工集团有限公司科技项目“特深层钻完井关键工具与装备”的部分研究成果。