Halbach阵列永磁悬浮带式输送机悬浮特性分析  

Analysis on Suspension Force Characteristics of the Permanent Magnet Suspension Belt Conveyor of Halbach Array

作　　者：王仲勋[1] 郭永存[1] 胡坤[1] WANG Zhong-xun;GUO Yong-cun;HU Kun(School of Mechanical Engineering,Anhui University of Science and Technology,Anhui Huainan 232001,China)

机构地区：[1]安徽理工大学机械工程学院

出　　处：《机械设计与制造》2019年第7期70-72,77,共4页Machinery Design & Manufacture

基　　金：教育部博士点基金项目(20133415110003);国家自然科学基金(51874004)

摘　　要：悬浮力是决定永磁悬浮带式输送机工作能力最重要的参数。针对传统永磁悬浮带式输送机磁密利用率低、悬浮力及悬浮气隙小等问题,基于Halbach理论对传统悬浮模型进行改进,提出了Halbach型永磁悬浮带式输送机支撑结构。结果表明,新型模型磁场分布明显改进,磁场强度达到传统模型的2倍。在分析磁性带宽度、厚度和永磁体厚度对悬浮力的影响的基础上,对悬浮系统尺寸进行优化。结果显示,相同永磁体尺寸情况下Halbach结构可以获得更大的悬浮力,气隙越小,悬浮力差值越大。为永磁悬浮带式输送机结构优化设计提供了参考。Suspension force is the most important parameter that determines the working ability of the permanent magnetic levitation belt conveyor.Aiming at the problems of low utilization ratio of permanent magnetic flux density,low suspension height,and small suspension force of traditional permanent magnetic levitation belt conveyor,the support structure of Halbach array permanent magnetic levitation belt conveyor was proposed based on Halbach theory.The results show that the magnetic field distribution of the new model is obviously improved and the magnetic field strength is twice of the traditional model.Suspension system dimensions was optimized based on the analysis of the influence of the thickness of magnetic band width and the thickness of permanent magnet on the buoyancy.The results show that the Halbach structure can achieve greater buoyancy under the same permanent magnet size.The smaller the gap,the greater difference in suspension.Reference is provided for structure optimization design of the permanent magnetic suspension belt conveyor.

关 键 词：永磁 带式输送机 HALBACH阵列 悬浮力 

分 类 号：TH16[机械工程—机械制造及自动化] TD528.1[矿业工程—矿山机电]