导航专用液压控制阀测试平台设计及性能试验  

Design of Test Bench for Navigation-used Special Hydraulic Control Valves and the Experiment

作　　者：贾全[1,2] 张小超[1,2] 伟利国[1,2] 

机构地区：[1]中国农业机械化科学研究院,北京100083 [2]土壤植物机器系统技术国家重点实验室,北京100083

出　　处：《农机化研究》2013年第11期148-152,共5页Journal of Agricultural Mechanization Research

基　　金：国家高技术研究发展计划项目(2012AA101902;2012AA10A503);国家科技支撑计划项目(2012BAF07B01)

摘　　要：为了选用合适的方向控制阀,解决拖拉机自动转向系统中导航阀组的设计问题,研制了导航专用液压控制阀测试平台。应用C#语言开发监控系统软件,通过CAN总线与现场控制器通讯,实时采集被测阀各口流量、压力,通过RS485总线传输至上位机进行分析、处理。应用该平台分别对电液伺服阀和比例方向阀进行了性能试验。试验结果表明,电液伺服阀QDY12和比例方向阀KDG4V-3S-33C22A均可满足导航要求。In order to solve the design problem of hydraulic control valves in autopilot system,a navigation-specific hydraulic control valves testbench was designed.A C# based measurement and control system for the test platform were developed,which communicated with the field Controller by CAN-BUS.Serial signals of the sensor group based on MODBUS protocol were sampled and monitored at real-time and synchronously.Electro-hydraulic servo valve and proportional direction valve were tested on this platform.Experimental results proved that the electro-hydraulic servo valve QDY12 and proportional direction valve KDG4V-3S-33C22A can meet the autopilot system requirements.

关 键 词：测试平台 自动转向 导航阀组 比例方向阀 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]