面向气动抓手的磁控形状记忆合金开关阀研究  

Research on Magnetic Shape MemoryAlloy On⁃off Valve for Pneumatic Grip

作　　者：祝志芳[1,2] 万家鑫 薛江松 卢全国 赵冉[4] ZHU Zhifang;WAN Jiaxin;XUE Jiangsong;LU Quanguo;Zhao Ran(Nanchang Institute of Technology,Jiangxi Province Key Laboratory of Precision Drive&Control,Nanchang 330099,China;Zhejiang Sci-Tech University,Faculty of Mechanical Engineering,Hangzhou 310018,China;China Railway Tunnel Group Co.,Ltd,Guangzhou 511458,China;Zhongyuan-Petersburg Aviation College,Zhongyuan University of Technology,Zhengzhou 450000,China)

机构地区：[1]南昌工程学院江西省精密驱动与控制重点实验室,南昌330099 [2]浙江理工大学机械工程学院,杭州310018 [3]中铁隧道局集团有限公司,广州511458 [4]中原工学院中原彼得堡航空学院,郑州450000

出　　处：《机械设计与研究》2024年第1期155-160,共6页Machine Design And Research

基　　金：国家自然科学基金(52365005);江西省自然科学基金(20232BAB204045)资助项目;江西省教育厅科技项目(GJJ2201504,GJJ211940);江西省科技厅重大科技研发专项(20233AAE02003);江西省林业局创新专项(2020-07)。

摘　　要：基于磁控形状记忆合金在磁场作用下产生形变量的特性,结合平板式阀门结构设计了一种开关阀,利用有限元分析方法对其结构进行了优化分析,并验证了该结构的可行性。搭建实验平台对开关阀进行了实验研究,利用激光位移传感器测试了阀芯的位移情况、开关阀响应速度以及开关阀动态响应特性,实验结果表明,开关阀阀芯行程达到了0.937 mm,当输入电流为8 A时,阀门开启时间为14 ms,阀门关闭时间为11.5 ms,阀芯在动作过程中非常平稳,没有产生机械震颤,性能表现良好,为磁控形状记忆合金驱动器的设计与应用提供参考。Based on the characteristic that the magnetic shape memory alloy produces deformation under the action of magnetic fields,a type of on⁃off valve is designed combined with the flat valve structure.The structure is optimized by finite element analysis method,and the feasibility of the structure is verified.The experimental platform is set up to carry out experimental research on the on⁃off valve.The displacement of the spool,the response speed of the on⁃off valve and the dynamic response characteristics of the on⁃off valve are tested using the laser displacement sensor.The experimental results show that the stroke of the on⁃off valve core reaches 0.937 mm.When the input current is 8 A,the valve opening time is 14 ms,the valve closing time is 11.5 ms,the spool is very stable in the operation process,and there is no mechanical tremor.The on⁃off valve has good performance,which provides a reference for the design and application of magnetically controlled shape memory alloy driver.

关 键 词：磁控形状记忆合金 气动抓手 开关阀 

分 类 号：TH113[机械工程—机械设计及理论]