A study on the development of the high thrust force linear valve actuator with multi-pole

首先，采用磁场有限元分析的方法，对传统比例阀的比例电磁阀进行了特性分析。结果，它变得清楚，一个三角形的形式在磁路使线圈电流和螺线管的推力成正比关系。并且，市场上该比例螺线管在线圈额定电流为1A时获得的推力约为120N。其次，利用个人计算机、模数转换器和数模转换器组成了传统比例螺线管和新型执行器的磁特性自动测量系统。然后，利用该测量系统对比例电磁阀的特性进行了测量，该测量值与上述分析值吻合。因此，可以验证本研究中与比例螺线管和该测量系统相关的有限元分析。然后，为获得大推力直线阀执行机构的设计数据，设计了一种4位矩形凸极的圆柱形多耳执行机构。我们制作并测试了这个驱动器。同时，对所设计的作动器进行了磁场分析。结果表明，执行机构推力实测值与分析值吻合较好。并且，很明显，在额定电流下，原型执行器的力大约是传统比例螺线管的三倍。最后，设计了一种新型结构作动器，并尝试扩大作动器的工作范围。通过改变磁极形状，大大减小了齿间间距，减小了驱动器长度。对新设计的作动器的推力特性进行了测量。因此，执行器的工作范围大约是第一个原型的两倍。此外，很明显，这种执行器的长度比市场上类似的电磁阀短，后者的推力和安装面积与阀体相同。少

First, characteristics of a proportional solenoid which operates conventional proportion valve was analyzed by using Finite Element Analysis of magnetic field. As a result, it became clear that a triangular form in the magnetic path made proportional relation between coil current and the thrust of the solenoid. And, this proportional solenoid on the market was obtained the thrust about 120N when the coil rated current was 1A.Next, a automatically measuring system of magnetic characteristics of a conventional proportion solenoid and a new actuator was made by using personal computer, AD and DA converters. And then, characteristics of the proportion solenoid was measured by this measuring system, this measuring value agreed with the above mentioned analysis value. Therefore, the Finite Element Analysis related to the proportional solenoid and this measuring system in this study could be verified.After that, for obtaining design data of high thrust linear valve actuator, a cylindrical lin … More ear actuator with 4 numbers rectangular convex pole was designed. And this actuator was made and tested. At the same time, magnetic field analysis of the designed actuator was done. As a result, measured value of the actuator thrust agreed well with analysis one. And, it became clear that the force of the prototype actuator was approximately three times more than that of the conventional proportion solenoid at the rated current.Finally, a new structural actuator was designed and it was attempted that the working range of the actuator was enlarged. Furthermore, the interval between the teeth was much smaller by changing the magnetic pole shape, and the actuator length was minimized. The thrust characteristics of the newly designed actuator were measured. As a result, the working range of the actuator was approximately two times more than that of the first prototype. Also, it became clear that the length of this actuator was shorter than that of a comparable solenoid on the market whose thrust and installation area to the valve body are the same. Less