比例阀线性双向电磁铁设计与试验研究

发布时间：2018-12-10 20:13

【摘要】：比例电磁铁是控制比例阀先导级阀芯动作的电磁驱动元件,其性能在很大程度上决定比例阀的整体性能。针对传统比例电磁铁线性度差、比例范围短、隔磁环安装困难等不足,设计一种新型结构的比例电磁铁,这种比例电磁铁采用永磁体与线圈产生的复合磁场力驱动衔铁运动,同时新型结构的比例电磁铁中取消传统比例电磁铁的隔磁环结构,降低加工难度并且具有较传统的比例电磁铁更好的性能。对设计的新型电磁铁进行数学建模和理论分析验证其理论的可行性,并且对同等尺寸的比例电磁铁进行仿真优化设计,获得尺寸条件限制下的性能最佳的比例电磁铁设计。在理论分析的基础上,通过对样机的电磁力测试获得的试验数据与理论分析数据一致,验证了这种新型结构的比例电磁铁的实用性。
[Abstract]:Proportional electromagnet is an electromagnetic driving element that controls the movement of the pilot valve core of proportional valve. Its performance determines the overall performance of proportional valve to a great extent. Aiming at the disadvantages of the traditional proportional electromagnet, such as poor linearity, short proportional range and difficult installation of the isolated magnetic ring, a new type of proportional electromagnet is designed, which uses the composite magnetic field force produced by the permanent magnet and the coil to drive the armature motion. At the same time, the new type of proportional electromagnet has better performance than the traditional proportional electromagnet by eliminating the magnetic ring structure of the traditional proportional electromagnet, which reduces the processing difficulty and has better performance than the traditional proportional electromagnet. The mathematical modeling and theoretical analysis of the new type electromagnet are carried out to verify the feasibility of the theory, and the proportional electromagnet of the same size is simulated and optimized to obtain the optimal design of the proportional electromagnet with the optimal performance under the restriction of the size conditions. On the basis of theoretical analysis, the experimental data obtained from the electromagnetic force test of the prototype are in agreement with the theoretical analysis data, and the practicability of the new type of proportional electromagnet is verified.
【作者单位】：北京航空航天大学自动化科学与电气工程学院;北京华德液压工业集团液压阀分公司;
【基金】：国家科技支撑计划(2011BAF09B04) 国家国际科技合作专项(2011DFA72690)资助项目
【分类号】：TH134;TM574

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