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针对射流管伺服阀在离心环境下的零偏问题,建立了3维离心环境下射流管伺服阀零偏特性的数学模型,分析衔铁组件偏心距、电磁力矩系数、反馈杆刚度、运动部件质量等结构参数对射流管伺服阀零偏特性的影响,提出了减小3维离心环境下射流管伺服阀零偏值的措施.结果表明:射流管伺服阀离心零偏值与离心加速度值呈线性关系;衔铁组件偏心距、电磁力矩系数与运动部件质量是影响射流管伺服阀离心零偏的主要因素,反馈杆刚度对零偏影响不大;采用合适的衔铁组件偏心距或者滑阀质量与衔铁组件质量之比可实现各加速度值下的离心零偏均为零.采用某型射流管伺服阀进行了实验验证,理论结果与实验结果一致.
Aiming at the zero offset problem of the jet pipe servo valve in centrifugal environment, a mathematical model of the zero offset characteristic of the jet pipe servo valve in 3-dimensional centrifugal environment is established, and the eccentricity of the armature assembly, the electromagnetic torque coefficient, the feedback rod stiffness, the mass of moving parts and so on Structure parameters of the jet pipe servo valve zero offset characteristics of the proposed three-dimensional centrifugal environment to reduce the jet valve servo bias value of the measures.The results show that: the jet pipe servo valve centrifugal bias partial centrifugal acceleration values ?? and a linear relationship ; The armature assembly eccentricity, electromagnetic torque coefficient and the quality of moving parts are the main factors that affect the eccentricity of the jet pipe servo valve. The stiffness of the feedback rod has little effect on the zero offset. By using the appropriate armature assembly eccentricity or plunger quality and the armature assembly The mass ratio can be achieved under the acceleration values of the centrifugal zero bias are zero. A certain type of jet pipe servo valve experimental verification, the theoretical results and experimental results.