摘要
基于单电流圆环的磁场计算模型,考虑线圈磁场的可叠加特性,同时忽略密绕线圈中相邻圆环间的磁场耦合效应,建立单级曲面密绕线圈沿轴线磁场的计算公式,进一步推导得到双级曲面线圈组合下的磁场计算模型。基于麦克斯韦电磁力理论,分析并计算双级曲面线圈磁场中永磁体受到的悬浮磁力,并通过实际测量进行验证。根据理论分析得到优化模型实际制作线圈,并搭建127 mm(5")的磁悬浮驱动织针试验样机,通过上位机界面控制织针运动,传感器系统对织针的悬浮高度进行实时采集。结果表明:在优化的双曲线形线圈驱动下,织针能较准确地达到3功位高度,并在相应高度实现一定行程范围的稳定悬浮以及编织工艺。
Based on the magnetic field calculation model of a single -turn coil with solitary current, taking the superposition property of coil magnetic field into consideration, and ignoring the magnetic coupling effect between adjacent rings in the tightly wound coil, this paper analyzed and established a formula for calculating the magnetic field of single stage curved surface coil along the axial line. Furthermore, the magnetic field calculation model un-der the combination of two stage curved coils was deduced. Based on Maxwell’s electromagnetism theory,the sus-pension magnetic force of permanent magnet in the magnetic field of double curved surface coil was analyzed and calculated, and verified by actual measurement. In addition, according to the optimized model based on theoretical analysis, the coil was made and a 127mm （5＂） maglev knitting prototype was built up. Through computer control needle movement and the real-time acquisition of needle suspension height by the sensor system, the results show that driven by the optimized hyperboloid coil, the needle can accurately reach 3-step level, and realize stable sus-pension on a certain level, and meet the requirements of knitting process.
出处
《针织工业》
2017年第11期6-10,共5页
Knitting Industries
基金
国家自然科学基金(51175384)
湖北省数字化纺织装备重点实验室基金(武汉纺织大学)项目(DTL2017003/002)
关键词
磁悬浮驱动
双级曲面电磁线圈
永磁体
力学模型
仿真分析
Magnetic Suspension Driving
Hyperboloid Coil
Permanent Magnet
Mechanical Model
Simula-tion Analysis
