行业组件数据 · 2026

从动磁体组件

繁體:從動磁體組件

从动磁体组件是磁力耦合系统中的关键部件,由按特定模式排列并安装在转子上的永磁体组成。

技术定义与适配语境
典型 从动磁体组件 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

从动磁体组件是磁力耦合系统中的关键部件,由按特定模式排列并安装在转子上的永磁体组成。它与主动磁体组件无机械接触,形成密封屏障,同时通过磁通传递扭矩。该组件通常封装在非磁性隔离套内,并响应主动磁体组件产生的磁场而旋转,从而在泵、搅拌器及其他工业设备中实现跨密封屏障的扭矩传递。 其工作原理基于同步磁场下的磁力扭矩传递。当主动磁体组件旋转时,其磁场通过磁吸引和排斥力使从动磁体组件旋转,无需任何物理连接。扭矩容量取决于磁体强度、气隙距离和磁路设计。

组件规格

定义
从动磁体组件是磁力耦合系统中的关键部件,由按特定模式排列并安装在转子上的永磁体组成。它与主动磁体组件无机械接触,形成密封屏障,同时通过磁通传递扭矩。该组件通常封装在非磁性隔离套内,并响应主动磁体组件产生的磁场而旋转,从而在泵、搅拌器及其他工业设备中实现跨密封屏障的扭矩传递。

其工作原理基于同步磁场下的磁力扭矩传递。当主动磁体组件旋转时,其磁场通过磁吸引和排斥力使从动磁体组件旋转,无需任何物理连接。扭矩容量取决于磁体强度、气隙距离和磁路设计。
工作原理
Operates on the principle of magnetic torque transmission through synchronized magnetic fields. When the driving magnet assembly rotates, its magnetic field induces rotation in the driven magnet assembly through magnetic attraction and repulsion forces, without any physical connection. The torque capacity depends on magnet strength, air gap distance, and magnetic circuit design.
材料
钕铁硼(NdFeB)或钐钴(SmCo)永磁体316不锈钢或钛隔离套铝或复合材料转子结构环氧树脂封装用于防腐蚀
IP Rating
IP68 for submerged applications
Magnet Grade
N35-N52 (NdFeB) or 2:17 (SmCo)
Maximum Speed
3000-10000 RPM
Torque Capacity
5-500 Nm
Air Gap Tolerance
±0.1 mm
Operating Temperature
-40°C to 200°C
标准
ISO 1940-1DIN 740IEC 60034API 610

行业分类与别名

从动磁体组件 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Excessive operating temperature beyond magnet rating->Permanent demagnetization and torque loss->Implement temperature monitoring systems, use high-temperature magnet grades (SmCo), and improve cooling through heat sinks or forced air circulation
Corrosive fluid penetration into containment shell->Magnet corrosion and magnetic circuit degradation->Use corrosion-resistant materials (titanium, Hastelloy), apply protective coatings, and implement double containment with leak detection
Misalignment between driving and driven assemblies->Increased vibration, reduced efficiency, and bearing wear->Precision alignment during installation, use flexible couplings, and implement laser alignment verification procedures

工业生态与工程逻辑

0
Magnet demagnetization due to overheating
1
Corrosion in aggressive chemical environments
2
Eddy current losses at high speeds
3
Magnetic particle contamination in cleanroom applications
4
Torque slip during overload conditions

合规与检测

tolerance
Radial runout: ≤0.05 mm, Axial play: ≤0.1 mm, Magnetic balance: ≤5 g·mm/kg
test method
Torque testing via dynamometer, magnetic flux measurement with gaussmeter, rotational balance per ISO 1940-1 G2.5, hermetic seal testing per API 682, temperature cycling from -40°C to maximum rated temperature

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the main advantage of using a driven magnet assembly?

The primary advantage is contactless torque transmission, which eliminates mechanical wear, prevents leakage in sealed systems, and requires no lubrication, making it ideal for hazardous or sterile environments.

How does temperature affect driven magnet assembly performance?

High temperatures can cause permanent magnet demagnetization, particularly with NdFeB magnets above 80°C. SmCo magnets offer better temperature stability up to 350°C but are more expensive. Proper thermal management is critical for maintaining torque capacity.

What maintenance is required for driven magnet assemblies?

Minimal maintenance is needed due to the contactless design. Primary concerns are monitoring bearing wear in supporting structures, checking for corrosion on containment shells, and verifying magnetic strength degradation over time through periodic torque testing.

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