纺织学报 ›› 2019, Vol. 40 ›› Issue (09): 180-185.doi: 10.13475/j.fzxb.20180904106

• 机械与器材 • 上一篇    下一篇

电脑横机织针的磁驱动设计与建模

张成俊1,2(), 游良风1, 左小艳1,2, 张弛1,2, 朱里1,2   

  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:2018-09-17 修回日期:2019-06-04 出版日期:2019-09-15 发布日期:2019-09-23
  • 作者简介:张成俊(1979—),男,副教授,博士。主要研究方向为针织装备设计与控制。E-mail: zchengj_wuse@163.com。
  • 基金资助:
    国家自然科学基金资助项目(51875414);湖北省自然科学基金资助项目(2017CFB585);湖北省教育厅科学技术研究项目(D20181704);湖北省数字化纺织装备重点实验室开放课题资助项目(DTL2018001)

Magnetic driving design and modeling for knitting needles of computerized flat knitting machine

ZHANG Chengjun1,2(), YOU Liangfeng1, ZUO Xiaoyan1,2, ZHANG Chi1,2, ZHU Li1,2   

  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:2018-09-17 Revised:2019-06-04 Online:2019-09-15 Published:2019-09-23

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摘要：

减少电脑横机在编织过程中的发热、振动和断针,提出一种利用电磁铁阵列驱动永磁体织针的非接触式的织针驱动方法,同时设计了织针与驱动分离的新型磁驱动横机结构。通过将电磁铁阵列中的铁芯、永磁、气隙等元素等效为磁阻和磁势,建立了电磁阵列驱动永磁织针的等效磁路模型,分析了电磁铁阵列在水平往复移动时的等效磁路模型的磁通量,推导出永磁织针在电磁铁阵列不同位移条件下的磁力模型,计算织针在不同条件下的受力数值,并利用Maxwell电磁仿真软件对磁驱动模型进行了仿真。结果表明:将等磁路模型和仿真模型的数据进行了比对和分析,验证了电磁铁阵列式的织针磁驱动等效磁路模型的正确性。

关键词: 电脑横机, 永磁织针, 电磁驱动, 等效磁路法, Maxwell仿真

Abstract:

In order to reduce heat, vibration and needle breakage during knitting process of computerized flat knitting machine, a non-contact needles driving method that permanent magnet knitting needles were driven by electromagnet array was proposed. At the same time, a new type of magnetic drive flat knitting machine structure with separate needle and drive was designed. By equivalent the elements of iron core, permanent magnet and air gap in the electromagnet array to magnetoresistance and magnetic potential, the equivalent magnetic circuit model of permanent magnet knitting needle driven by electromagnetic array was established. Then, by analyzing the flux of the equivalent magnetic circuit model of the electromagnet array moving horizontally to and fro, the magnetic force model of the permanent magnet knitting needle under different displacements of the electromagnet array was deduced. Thus, the force values of knitting needles under different conditions can be calculated. Maxwell electromagnetic simulation software was adopted to simulate the magnetic drive model, the data of the equivalent magnetic circuit model and the simulation model were compared and analyzed, and the validity of the equivalent magnetic circuit model was verified.

Key words: flat knitting machine, permanent magnetic needle, electromagnetic driving, magnetic equivalent circuit method, Maxwell simulation

中图分类号: 

  • TP311

图1

织针磁驱动结构示意图"

图2

织针磁驱动动作示意图 注:图上数字为织针号码。"

图3

织针磁驱动结构尺寸 注:1,2,3分别是不同位置的永磁织针;4,5分别是不同位置的电磁铁铁芯。"

图4

磁路分析模型"

图5

小位移等效磁路模型"

图6

大位移等效磁路模型"

图7

永磁织针受力示意图"

图8

磁力模型的尺寸参数"

图9

Maxwell 3D磁阵列模型"

图10

磁路模型数据与Maxwell仿真数据对比"

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