纺织学报 ›› 2021, Vol. 42 ›› Issue (09): 156-162.doi: 10.13475/j.fzxb.20201008907

• 机械与器材 • 上一篇    下一篇

密绕线圈阵列结构对悬浮织针驱动性能的影响

李冬冬1, 张成俊1,2(), 左小艳1,2, 张弛1,2, 朱里1, 刘雅昆1   

  1. 1.武汉纺织大学 机械工程与自动化学院, 湖北 武汉 430073
    2.湖北省数字化纺织装备重点实验室, 湖北 武汉 430073
  • 收稿日期:2020-10-30 修回日期:2021-06-11 出版日期:2021-09-15 发布日期:2021-09-27
  • 通讯作者: 张成俊
  • 作者简介:李冬冬(1995—),男,硕士生。主要研究方向为针织装备设计。
  • 基金资助:
    国家自然科学基金项目(51875414);湖北省自然科学基金项目(2019CFB610);湖北省教育厅科学技术研究项目(D20191701);湖北省数字化纺织装备重点实验室开放课题资助项目(DTL2019009)

Influence of densely wound coil array structure on driving performance of suspended knitting needles

LI Dongdong1, ZHANG Chengjun1,2(), ZUO Xiaoyan1,2, ZHANG Chi1,2, ZHU Li1, LIU Yakun1   

  1. 1. School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan, Hubei 430073, China
    2. Hubei Key Laboratory of Digital Textile Equipment, Wuhan, Hubei 430073, China
  • Received:2020-10-30 Revised:2021-06-11 Published:2021-09-15 Online:2021-09-27
  • Contact: ZHANG Chengjun

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摘要：

为了改善织针的驱动性能,通过对密绕线圈阵列结构分析,确定悬浮织针的驱动结构,以提高空间磁场强度和悬浮织针驱动力;并根据毕奥-萨伐尔定律,推导密绕线圈阵列结构的电磁模型,分析计算不同密绕线圈结构及阵列方式在中心轴线上任意位置的磁感应强度,以及不同气隙高度下永磁织针的电磁驱动力;利用电磁仿真软件建立密绕线圈阵列结构驱动模型,得到单一式和阵列式密绕线圈结构对永磁织针所受电磁驱动力的数值曲线。最后通过搭建密绕线圈阵列驱动实验测试平台,对比仿真和实验结果。研究表明:圆柱形密绕线圈在永磁织针驱动系统中驱动性能更佳,且单组密绕线圈产生的驱动力大于多组阵列产生的驱动力。

关键词: 悬浮驱动, 永磁织针, 密绕线圈阵列, 电磁模型, 驱动性能, 针织横机

Abstract:

In order to improve the driving performance of knitting needles, through the analysis of the densely wound coil array structure, the driving structure of the floating needle was determined, and the spatial magnetic field strength and the driving force of the floating needle were improved. According to Biot-Savart law, the electromagnetic model of the densely wound coil array structure was deduced, and the magnetic induction intensity of different densely wound coil structures and array methods at any position on the central axis was analyzed and calculated, which gain the electromagnetic field of the permanent magnet knitting needles under different air gaps and driving force. An electromagnetic simulation software was used to establish the driving model of the densely wound coil array structure, and the numerical curve of the electromagnetic driving force of the single and array type densely wound coil structure on the permanent magnetic needle were obtained. Using the constructed densely wound coil array driving experiment test platform, comparative analysis of simulation and experimental results were achieved, showing that the cylindrical densely wound coil has better driving performance in the permanent magnetic needle drive system, and the driving force generated by a single group of densely wound coils is greater than that of multiple groups.

Key words: suspended needle driven, permanent magnetic knitting needle, densely wound coil array, electromagnetic model, driving performance, flat knitting machine

中图分类号: 

  • TP311

图1

圆柱形密绕线圈悬浮织针驱动结构"

图2

不同截面形状的密绕线圈"

表1

织针驱动仿真模型参数"

类型 材料 形状 厚度/
mm		 半径/
mm		 线圈电流/
A		 磁动
势/AT
密绕
线圈		 铜 圆柱形 50 3 [0.7-1] 3 000
纺锤形 50 变化 [0.7-1] 3 000
双曲线形 50 变化 [0.7-1] 3 000
永磁 NdFe35 圆柱形 7 8 — —

图3

圆柱形密绕线圈在不同磁动势下驱动力随气隙高度的变化关系"

图4

双曲线密绕线圈在不同磁动势下驱动力随气隙高度的变化关系"

图5

纺锤形密绕线圈在不同安匝数下驱动力随气隙高度的变化关系图"

表2

不同截面密绕线圈的阵列结构与电磁力之间的关系"

截面形状 线圈阵列 不同磁动势下的驱动力/N
2 100 AT 2 400 AT 2 700 AT 3 000 AT
圆柱形 1组 0.120 0.135 0.140 0.140
2组 0.045 0.045 0.050 0.060
3组 0.035 0.035 0.035 0.035
4组 0.035 0.035 0.035 0.035
纺锤形 1组 0.035 0.060 0.060 0.060
2组 0.035 0.035 0.035 0.035
3组 0.035 0.035 0.050 0.050
4组 0.035 0.035 0.055 0.055
双曲线形 1组 0.035 0.035 0.042 0.042
2组 0.035 0.035 0.042 0.035
3组 0.035 0.035 0.035 0.035
4组 0.035 0.035 0.035 0.035
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