考虑漏磁因素的盘式永磁涡流联轴器传动特性分析

王帅; 徐伟杰; 程启超; 何俊; 杨世锡

doi:10.13433/j.cnki.1003-8728.20200522

考虑漏磁因素的盘式永磁涡流联轴器传动特性分析

doi: 10.13433/j.cnki.1003-8728.20200522

王帅^1,,
徐伟杰²,
程启超²,
何俊^2, ,,
杨世锡²

1.
阳泉煤业（集团）股份有限公司，山西阳泉　045008
2.
浙江大学机械工程学院，杭州　310007

基金项目: 国家自然科学基金项目（U1809219）

详细信息

作者简介:
王帅（1986−），工程师，研究方向为机械传动与设备维修，wangshuailf@163.com

通讯作者:
何俊，博士后，hejunzju@zju.edu.cn

中图分类号: TH133.4
计量
- 文章访问数: 72
- HTML全文浏览量: 20
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2020-11-04
- 刊出日期: 2023-02-04

Analyzing Transmission Characteristics of Disc Type Permanent MagnetEddy Current Coupling with Magnetic Flux Leakage Considered

1.
Yangquan Coal Industry （Group） Co., Ltd., Yangquan 045008, Shanxi, China
2.
School of Mechanical Engineering, Zhejiang University, Hangzhou 310007, China

摘要

摘要: 针对流体机械传统节流调节易造成大量电能浪费的问题，设计了一种具有传递动力和调速功能的盘式永磁涡流联轴器。建立了永磁涡流联轴器的等效磁路，构建了永磁涡流联轴器传递转矩和涡流损耗的计算模型，分析了漏磁因素对磁感应强度的影响，进一步探讨了转差、气隙大小、永磁体厚度等因素对传动特性的影响。结果表明：考虑漏磁后，气隙磁场的磁感应强度计算结果小于忽略该因素的结果，且两者之间的偏差随着气隙大小的增加而增加；永磁涡流联轴器传动转矩随着转差的增加先快速增加，然后缓慢下降，随着永磁体厚度的增加而增加，随着气隙大小的增加而减小。研究结果对盘式永磁涡流联轴器的设计具有指导意义。
- 永磁涡流联轴器 /
- 漏磁 /
- 传动转矩 /
- 涡流损耗 /
- 磁路法
Abstract: To solve the problem that the traditional throttling regulation of fluid machinery is easy to waste a lot of electric energy, a disc type permanent magnet eddy current coupling with the function of power transmission and speed regulation is designed. The equivalent magnetic circuit of the coupling is established, the calculation model of torque and eddy current loss of the coupling is constructed, the influence of magnetic flux leakage on magnetic induction is analyzed. Furthermore, the influence of slip, air gap and thickness of permanent magnet on transmission characteristics is discussed. The results show that, after considering magnetic flux leakage, the calculation result on the magnetic induction intensity of air gap magnetic field is smaller than that of neglecting this factor and that the deviation between them increases with the increase of air gap. With the increase of slip, the transmission torque of the coupling first increases rapidly and then decreases slowly. The transmission torque increases with the increase of permanent magnet thickness and decreases with the increase of air gap size, thus guiding the design of disc permanent magnet eddy current coupling.
- permanent magnet eddy current coupling /
- magnetic flux leakage /
- transmission torque /
- eddy current power loss /
- magnetic circuit method

HTML全文

图 1 盘式永磁涡流联轴器

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图 2 转速调节示意图（左为永磁盘、右为导体铜盘）

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图 3 盘式永磁涡流联轴器磁路

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图 4 单永磁体等效磁路

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图 5 相邻两永磁体间漏磁磁导计算示意图

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图 6 永磁体布置及尺寸示意图

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图 7 电流环示意图

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图 8 漏磁对气隙磁场磁感应强度的影响

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图 9 转差与传动转矩和涡流损耗的关系曲线

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图 10 不同气隙下转差与传动转矩关系曲线

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图 11 不同永磁体厚度下转差与传动转矩关系曲线

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图 12 不同铜盘厚度下的转差与传动转矩关系曲线

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表 1 永磁体及铜盘参数

永磁体参数	参数值	铜盘参数	参数值
内径/mm	80	内径/mm	80
外径/mm	235	外径/mm	235
材料	N38H	材料	Cu
背板厚度/mm	5	背板厚度/mm	5
极对数	8

下载: 导出CSV

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