磁性珩磨系统磁路与电路分析

Magnetic Circuit and Electric Circuit Analysis of Magnetic Honing System

磁性珩磨技术是充分结合了磁技术与珩磨技术的新兴技术。前期研究表明,磁性珩磨技术能获得较高的表面质量,但加工的稳定性较差,其主要原因是定子与转子磨具的匹配,即定子与转子磨具组成的磁性珩磨系统的磁路与电路分析。首先对磁性珩磨系统的空载与负载状态进行磁场分析,然后将"场"的问题转化为"路"的问题,建立电压方程,导出电磁功率及电磁转矩。对两种不同类型的转子磨具进行仿真对比,验证转子磨具的磁路设计对系统钢管内壁处的磁感应强度以及电磁转矩有很大的影响,指出在后续设计中应该重点对转子磨具的磁路进行优化设计,为磁性珩磨系统的连续加工奠定基础。

By fully combining magnetism technology with honing technology, magnetic honing is an emerging technology in recent years. Previous studies showed that magnetic honing system could obtain higher surface quality, but have poor stability of the processing; the main reason is the matching of stator and rotor abrader, namely magnetic circuit and electric circuit analysis of magnetic honing system composed of the stator and the rotor. It firstly analyzes the no -load and load state＇s magnetic field of the magnetic honing system and the problem of ＂field＂ is transformed into the problem of ＂path＂, and then establishes the voltage equation and derives the electromagnetic power and the electromagnetic torque. By comparing two different rotor abrader through using simulation on the computer, it is confirmed that magnetic circuit design of the rotor abrader at the inner wall of steel pipe has great influence on the magnetic induction intensity and electromagnetic torque and points out that subsequent design should be focusing on the magnetic circuit of rotor abrader for optimization design so that the foundation for the continuous processing of magnetic honing system could be laid.