缸筒内径对油气弹簧阀系参数设计的影响

The effect of inner diameter of cylinder on parameters of hydro-pneumatic spring valve

利用车辆单轮簧上质量和最佳阻尼比系数,得到油气弹簧开阀压力。利用开阀压力与阀片变形以及流量之间关系,建立油气弹簧阀系参数解析设计公式,对阀系参数进行解析设计。通过对缸筒内径对阀系设计参数的影响进行定量分析,建立了阀片厚度和节流缝隙影响系数,利用该系数可对阀系参数进行推算设计。通过实例,对阀系参数进行了解析设计与影响系数推算设计,并对2种方法设计值进行了比较,对阀系设计参数进行校核,对所设计油气弹簧进行了特性试验。设计和试验结果表明,阀系参数解析设计方法是准确的,影响系数推算设计方法是可靠的,对油气弹簧设计开发具有重要参考价值。

It expounds how to calculate opening pressure of hydro - pneumatic spring valve using single wheel spring weight and optimum damping ratio, and how to establish analytic design formula of valve parameters using relationship among opening pressure, slice deformation and flow. Furthermore it also analyzes the effects of inner diameter of cylinder on valve parameters and obtains the coefficients of effect of slice thickness on throttle slot. Valve parameters can be derived from the coefficients. The analytic design of valve parameters and effect coefficients, comparing two kinds of design values by two different design ways, checking design parameter and special test of hydro - pneumatic spring show that the analytic method of detemtining valve parameter is accurate and effect coefficients are reliable. The method can be an important reference to other similar design.