摘要
对滚珠丝杠副中滚珠进入循环导珠管时发生的接触碰撞进行研究分析,考虑滚珠和导珠管的几何外形、丝杠的转动速度等因素,建立了滚珠和导珠管碰撞接触的动力学模型.在此基础上,分析了滚珠丝杠转速、碰撞角与碰撞力、接触时间之间的关系,并讨论了空心滚珠结构和采用Si3N4的陶瓷材料作为滚珠材料以降低滚珠与导珠管间冲击的效果.这对于优化导珠管结构,改善和提高高速滚珠丝杠副的动态性能指标具有重要的理论意义.
In order to study contact-impact problems of re-circulating mechanism in ball screw, the dynamic model of contact-impact between the ball and return tube is presented based on the Hertz contact theory and collision theory. The dynamic equation is developed considering the ball and return tube＇s geometric arid operational factors. Based on the dynamic model, the relationship between the ball screw rotational speed, impingement angle, impact force and contact time is analyzed. The effects are investigated by using hollow ball and Si3N4ceramic material in order to reduce the impact force. Tbe model gives the optimum structure of ball screw drive.
出处
《江苏大学学报（自然科学版）》
EI
CAS
北大核心
2008年第5期373-376,共4页
Journal of Jiangsu University：Natural Science Edition
基金
国家自然科学基金资助项目(50675124)
山东省教育厅自然科学基金资助项目(J05B06)
