用于水下电机密封的磁力驱动装置研究

发布时间：2018-11-04 18:51

【摘要】：随着海洋开发的不断深入以及军事应用的要求,潜器和水下作业装置的工作深度不断增加,深水电机作为水下装置的重要驱动元件,对其密封技术的要求也在不断地提高。磁力密封驱动器的主动磁转子和从动磁转子之间通过磁力耦合传递运动、力和力矩,由电机驱动主动磁转子,磁力通过隔离套驱动从动磁转子运动,实现力矩的无接触传递,变动密封为静密封,可彻底解决机械传动装置轴封泄漏,实现零泄漏的运动传递,同时还可对电机进行过载保护。本文根据某水下装置对水下电机密封的要求,设计了磁力密封驱动装置的总体结构方案,确定了磁力密封驱动装置的磁路结构；对磁体排列方式进行研究,确定了的磁体排列方式；对磁路的长径比进行了合理的选择,对永磁体厚度与磁极作用面弧长的合理匹配问题进行了分析,确定了永磁材料的工作点,对磁路的转矩计算方法及其进行功率匹配计算和修正方法进行研究,完成了磁力密封驱动器转矩的设计计算和分析以及磁路和整体结构尺寸设计；对永磁材料、软磁材料、轭铁材料以及隔离套材料进行了分析并作出选择,完成了隔离套的设计；对磁力密封驱动器工作时的涡流损失和水力摩擦损失进行了分析和计算。基于解析法分析计算的结果,采用ANSYS软件对磁力密封驱动器的磁路进行仿真、分析,对不同转角差、磁极对数、轭铁厚度时模型中磁场分布情况进行分析、研究,仿真分析结果与理论计算结果一致。委托信息产业传感器产品质量监督检验中心对产品样机进行了实验和测试,实验结果表明磁力耦合密封驱动器样机的性能达到了设计要求。
[Abstract]:With the development of ocean and the requirement of military application, the working depth of submersible and underwater equipment is increasing, and the requirement of deep water motor, as an important driving component of underwater device, is also increasing. The active magnetic rotor and the driven magnetic rotor of the magnetic seal driver transmit motion, force and torque through the magnetic coupling. The active magnetic rotor is driven by the motor, and the magnetic force drives the driven magnetic rotor motion through the isolation sleeve to realize the non-contact transfer of the torque. The change seal is static seal, which can completely solve the leakage of shaft seal of mechanical transmission device, realize the motion transfer of zero leakage, and also protect the motor from overload. In this paper, according to the requirements of underwater motor seal, the overall structure of magnetic seal driving device is designed, and the magnetic circuit structure of magnetic seal driving device is determined. The magnet arrangement mode is studied and the magnet arrangement mode is determined. The reasonable selection of the ratio of length to diameter of magnetic circuit and the reasonable matching between the thickness of permanent magnet and the arc length of magnetic pole surface are analyzed, and the working point of permanent magnet material is determined. The torque calculation method of magnetic circuit and its power matching calculation and correction method are studied. The design calculation and analysis of torque of magnetic seal driver and the design of magnetic circuit and overall structure size are completed. The permanent magnetic material, soft magnetic material, yoke iron material and isolation sleeve material are analyzed and selected, the design of isolation sleeve is completed, and the eddy current loss and hydraulic friction loss of magnetic seal driver are analyzed and calculated. Based on the results of analytical analysis and calculation, the magnetic circuit of magnetic seal driver is simulated by ANSYS software, and the distribution of magnetic field in the model with different rotation angle difference, logarithm of magnetic pole and thickness of yoke iron is analyzed. The simulation results are consistent with the theoretical results. The information industry sensor product quality supervision and inspection center was commissioned to carry on the experiment and the test to the product prototype. The experimental results show that the performance of the magneto-force coupling seal driver prototype meets the design requirements.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH136

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