环锭纺钢丝圈空间运动理论模型的优化
2021-09-28 11:02:38 来源: 评论:0 点击:
针对当前平面气圈的理论模型限制环锭细纱机纺纱转速高速发展的问题,提出了考虑空气阻力和科氏惯性力的作用来建立纱线卷绕半径和钢丝圈回转半径随时间变化的数学方程模型;通过研究加
刘汉邦a,b,李新荣a,b,冯文倩a,b,吴柳波a,b
(a.天津工业大学 机械工程学院;b.天津市现代机电装备技术重点实验室:天津 300387)
摘要:针对当前平面气圈的理论模型限制环锭细纱机纺纱转速高速发展的问题,提出了考虑空气阻力和科氏惯性力的作用来建立纱线卷绕半径和钢丝圈回转半径随时间变化的数学方程模型;通过研究加捻卷绕过程和管纱的卷绕成形规律,得到钢丝圈回转速度与细纱卷绕速度、锭子转速之间的关系;根据力矩平衡原理,建立钢丝圈力矩平衡公式,求得钢丝圈的3个空间倾角变化规律;基于图像处理分析技术,提取图像特征点进行分析,根据分析后的结果对理论模型进行优化。指出:该数学模型可以准确预测钢丝圈外倾角和前倾角随时间变化的规律,为环锭细纱机纺纱转速高速发展奠定理论基础,对提高环锭纺的成纱质量、降低纺纱断头率,以及设计使用钢领和钢丝圈系统具有重要意义。
关键词:钢丝圈;受力分析;空气阻力;科氏惯性力;图像处理;运动模型中图分类号:TS103.82+2 文献标志码:A 文章编号:1001-9634(2021)03-0001-09
收稿日期:2020-09-11
基金项目:国家重点研发计划资助项目(2018YFB1308801)
作者简介:刘汉邦(1996—),男,山东寿光人,硕士在读,主要从事纺织机械设计及自动化等方面的研究。
Optimization of Space Motion Theoretical Model of Traveler of Ring Spinning
LIU Hanbanga,b,LI Xinronga,b,FENG Wenqiana,b,WU Liuboa,b
(a.School of Mechanical Engineering Tianjin Polytechnic University;
b.Key Laboratory of Modern Mechanical and Electrical Equipment Technology:Tianjin 300387,China)
LIU Hanbanga,b,LI Xinronga,b,FENG Wenqiana,b,WU Liuboa,b
(a.School of Mechanical Engineering Tianjin Polytechnic University;
b.Key Laboratory of Modern Mechanical and Electrical Equipment Technology:Tianjin 300387,China)
Abstract:In view of the problem that the current theoretical model of a flat balloon limits the rapid development of spinning speed of ring spinning frame,a mathematical equation model of yarn winding radius and traveler turning radius changing with time is established by considering the effects of air resistance and the Coriolis inertial force is proposed.By studying the twisting and winding process and the forming law of bobbin yarn,the relationship between the rotation speed of traveler and spinning speed and spindle speed is obtained.According to the principle of torque balance,the formula of torque balance of traveler is established,and the variation law of three spatial inclination angles of traveler is obtained.Based on the image processing and analysis technology,the image feature points are extracted and analyzed,and the theoretical model is optimized according to the analysis results.It is pointed out that the mathematical model can accurately predict the variation law of the camber angle and camber angle with time,and lay a theoretical foundation for the rapid development of the spinning speed of ring spinning frame.It is of great significance to improve the spinning quality of ring spinning,reduce the breaking rate of spinning,and design and use the system of ring and traveler.
Key Words:traveler;force analysis;air resistance;Coriolis inertial force;image processing;motion model
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