A Study of an Electro-magnetic Proportional Actuator of Multi Step Pole Type
A Study of an Electro-magnetic Proportional Actuator of Multi Step Pole Type
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多级磁极式电磁比例执行器的研究
DOI：
10.5739/jfps.36.96
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
A. Hibi
中科院分区：
文献类型：
--
作者：
H. Kondo;A. Hibi
本文设计了一种新型电磁比例执行器，该执行器由电枢轴和定子多个凸齿组成，用于控制油液压阀。每个凸齿形成磁极，当多个磁极同时产生力时，在致动器中产生大的推力。该驱动器的尺寸为60 mm见方，长101 mm。通过对该执行器特性的测量，发现其推力在电枢行程的1 mm以内是恒定的，在15W的电耗下产生约300N的推力。当测量执行器的线圈温升时，很明显，当执行器的外表面向大气开放时，允许的最大电耗为15W。该驱动器的推力是相同尺寸和功耗的常规比例螺线管和直线电机的2.5倍左右。此外，通过增加线圈的绕组数量，检查凸齿和磁路的形状和尺寸，该执行器有可能产生比传统比例螺线管和直线电机高三倍或更多的推力。
In this study, a newly designed electro―magnetic proportional actuator composed of an armature and stator with multi convex teeth to control oil hydraulic valves was constructed and tested. Each of the convex teeth forms a magnetic pole, and when multiple magnetic poles produce a force simultaneously, a large thrust force is generated in the actuator. The dimensions of this actuator is６０mm square, by１０１mm length. As a result of measurement of characteristics of this actuator, it became clear that its thrust force was constant within１mm of the armature stroke, producing about３００N at electric power consumption of１５W. When the rise in the coil temperature of the actuator was measured, it became clear that the allowable maximum electric power consumption was １５W when the outer surface of the actuator is open to the atmosphere. Thrust force of this actuator is about２．５times as large as that of conventional proportional solenoids and linear motors of the same size and power consumption. In addition, the actuator has the potential to generate three times or more thrust force compared with conventional― proportional solenoids and linear motors by increasing the winding number of the coil and examining the shapes and sizes of the convex teeth and magnetic circuit.