具有极间隙的新型永磁式丝杠仿真研究

宋晓庆; 张永鑫; 张海; 赵武

doi:10.13433/j.cnki.1003-8728.20200019

具有极间隙的新型永磁式丝杠仿真研究

doi: 10.13433/j.cnki.1003-8728.20200019

1.
郑州商学院信息与机电工程学院, 河南巩义 451200
2.
河南理工大学机械与动力工程学院, 河南焦作 454000

基金项目:

国家自然科学基金项目 U1604140

详细信息

作者简介:
宋晓庆(1991-), 助教, 硕士研究生, 研究方向为磁力传动、故障诊断, 1020452486@qq.com

中图分类号: TH132
计量
- 文章访问数: 88
- HTML全文浏览量: 58
- PDF下载量: 18
- 被引次数: 0
出版历程
- 收稿日期: 2019-09-25
- 刊出日期: 2021-01-01

Simulation on Properties of a New Linear-rotary Magnetic Gear with Polar Gap

1.
School of Information and Electromechanical Engineering, Zhengzhou Business University, Gongyi 451200, He′nan, China
2.
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, He′nan, China

摘要

摘要: 为解决实际工程应用中加工精度或装配误差等因素导致的磁极间存在间隙或其他绝缘性材料形成间隔的问题, 设计了一种具有极间隙的新型永磁式丝杠结构。提出了极距比的概念, 应用有限元仿真技术, 研究了极距比及直径、节距对最优极距比的影响。结果显示:峰值推力和峰值转矩随极距比的增大而减小; 存在最优极距比为0.3, 使得输出推力密度与转矩密度较大的同时, 比推力和比转矩最大, 磁能利用率最高; 改变丝杠直径和节距, 最优极距比不变。
- 极间隙 /
- 永磁式丝杠 /
- 极距比 /
Abstract: In order to solve the problem of gap between magnetic poles or other insulating materials caused by machining precision or assembly error in practical engineering, a new type of linear-rotary magnetic gear (LRMG) with polar gap was designed in this paper. The concept of pole pitch ratio (PPR) was proposed, and the effects of diameter or pole pitch on optimal PPR were investigated. Simulation results show that the peak thrust and peak torque decrease with PPR increasing. And it is found that when PPR is 0.3, the output thrust density and torque density have the largest value, specific thrust and specific torque are also maximum, which means it has the maximum pole utilization ratio. The optimal PPR is not affected by the variation of diameter and pole pitch.
- polar gap /
- linear-rotary magnetic gear /
- pole pitch ratio /
- simulation

HTML全文

图 1 具有极间隙时的半斜环组合式永磁丝杠结构示意图

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图 2 不同极距比时的静特性曲线

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图 3 极距比对推力(转矩)和推力密度(转矩密度)的影响

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图 4 比推力(比转矩)与极距比的关系

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图 5 不同直径下推力密度(转矩密度)与极距比的关系

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图 6 推力密度(转矩密度)与直径的关系

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图 7 不同直径下比推力(比转矩)与极距比的关系

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图 8 不同节距下推力密度(转矩密度)与极距比的关系

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图 9 推力密度(转矩密度)与节距的关系

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图 10 不同节距下比推力(比转矩)与极距比的关系

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图 11 比推力(比转矩)与节距的关系

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表 1 永磁丝杠结构参数表

参数名及单位	数值
丝杠磁极厚h_sc/mm	5
螺母磁极厚h_mc/mm	5
磁极节距t/mm	10
磁极对数p	1
丝杠轭铁厚度h_se/mm	5
螺母轭铁厚度h_me/mm	5
丝杠外径d/mm	50
气隙长度δ/mm	1
螺母轴向长度L/mm	50

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表 2 永磁丝杠材料参数

参数名及单位	数值
永磁体剩磁B_r/T	1.25
矫顽力H_c/(kA·m^-1)	960
轭铁相对磁导率μ_r	4 000

下载: 导出CSV

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