直动式水基数字节流阀设计及其应用  

Design and Application of Direct Acting Water-Based Digital Throttle Valve

作　　者：王涛 李俊士 WANG Tao;LI Junshi(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101399,China;National Key Laboratory of Intelligent Coal Mining and Rock Stratum Control,Beijing 100013,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京101399 [2]煤炭智能开采与岩层控制全国重点实验室,北京100013

出　　处：《机床与液压》2024年第24期184-188,共5页Machine Tool & Hydraulics

基　　金：天地科技股份有限公司科技创新创业资金专项项目(2022-2-TD-ZD019,2023-TD-ZD002-5)。

摘　　要：针对大流量直动式水基数字节流阀负载大、电机功率高的问题,设计一种液力平衡式数字节流阀,在保留直动式数字节流阀开环位置控制精度高的同时,克服了直动式大流量阀所需驱动力大的缺点。介绍了液力平衡式数字节流阀及其应用的测试系统工作原理,根据测试工况获取了节流阀的设计参数;随后通过Fluent软件仿真得到不同开度下阀芯需要的驱动力,仿真结果表明:阀芯表面补偿环的液压力与阀芯的液动力相互均衡,实现减小阀芯驱动力的目的;AMESim仿真结果与试验数据证明了此液力平衡式数字节流阀性能符合使用需求。Aiming at the problem of large load and high motor power of large flow direct acting water-based digital throttle valve,a hydraulic balanced digital throttle valve was designed,while retaining the advantages of high open-loop position control accuracy of direct acting digital throttle valve,it could overcome the shortcomings of large driving force required by direct acting large flow valve.The working principle of hydraulic balance digital throttle valve and its application testing system were introduced,and the design parameters of the throttle valve were obtained by the test conditions.The driving force required for the valve core at different openings was obtained through Fluent simulation.The simulation results show that the hydraulic pressure of the compensation ring on the surface of the valve core is balanced with the flow force of the valve core,and the purpose of reducing the driving force of the valve core is successfully achieved.The AMESim simulation results and experimental data prove that the performance of the hydraulic balanced digital throttle valve meets the use requirements.

关 键 词：液力补偿 水基数字节流阀 Fluent仿真 AMESIM仿真 卸载阀试验台 

分 类 号：TH137.52[机械工程—机械制造及自动化]