Exploring GMA Driver of High-speed on/off Valve Using New Micro-displacement Amplifier
-
摘要: 为了满足超磁致伸缩(gain magnetostrictive material,GMM)式高速开关阀的大流量输出要求,必须提高GMM式驱动器的输出位移。提出了一种基于超磁致伸缩材料"堆叠式"与"交替式"级联组合的放大结构,实现GMM驱动器的微位移放大。根据GMM棒的性能特性,制作了尺寸为10 mm×40 mm"堆叠式"放大结构用于GMM驱动器,并在不同载荷下对其位移进行了测试。结果表明,采用线径0.7 mm、绕组1 700匝的励磁线圈的GMM式驱动器样机,其最大负载约700 N,响应时间小于1.5 ms,150 N外载荷下的输出位移可达78μm,能够满足作为大流量输出的高速开关阀驱动部件的性能要求。Abstract: We propose a new micro-displacement amplifer that uses the GMM(giant magnetostrictive material) driver of a high-speed on/off valve.This amplifer uses the "nested" and "tandem-arrayed" structure with GMM rods.According to the performances of the GMM rods,we manufacture a prototype of "nested" amplifier to be used for the GMM driver.We test the displacement of the GMM driver under different loads.The test results show that the prototype GMM driver which uses a coil with 1 700 turns and φ0.7 mm wires has the response time of less than 1.5 ms,the maximum load of 700 N and the displacement output of 78 μm under the load of 150 N,indicating that the GMM driver can well meet the requirements for driving a high-speed on/off valve.
-
Key words:
- GMM actuator /
- amplifer of micro-displacement /
- high-speed on/off valve /
- driver parts
-
[1] 金国庆, 方昌林．高速开关阀压电驱动器的性能研究[J]. 机床与液压, 2003, (3):213～216 [2] 刘少军．高速开关电磁阀的现状及应用[J]. 液压与气动,1995, (6):12～14 [3] 朱玉川等．超磁致伸缩材料在流体控制阀中的应用与展望[J]. 液压与气动, 2004, (5):49～03 [4] 孙中雷, 陶华, 尹子栋．超磁致伸缩驱动器微位移放大机构[J]. 待发表 [5] Tanaka H, et al．Development of a common-rail proportional injec-tor controlled by a tandem arrayed giant magnetostrictive device[J]. Japan Society of Automotive, 2001, 22:369～371 [6] 杨斌堂等．Terfenol-D 磁致伸缩微小驱动器磁路设计[J]. 机械科学与技术, 2005, 23(8) -
点击查看大图
计量
- 文章访问数: 263
- HTML全文浏览量: 25
- PDF下载量: 8
- 被引次数: 0
下载:
