液压元件试验台对被试元件通过流量的计量,一般是用测量油箱检测。而测量油箱的放油速度又影响工作效率。在实际操作中总希望放油占用时间越短越好,操作越简单越可靠越好。我们在制作液压泵和液压阀试验台时,对测量油箱放油问题作过几种试验都不理想,如采用广研所方向阀试验台测量油箱的真空放油装置时,发现放油速度与油的粘度成反比,同时还放不净(用水试验效果很好)。采用截止阀和大通径电磁滑阀时,不是不容易自动控制就是体积大。为了满足放油快和自动控制,我们设计一种电控锥形放油阀,经过一年多的 Hydraulic components test bench on the subject components through the flow measurement, usually measured with the fuel tank test. The measurement of the oil tank speed and affect the efficiency of oil. In practice, always hope that the oil drain occupation time is as short as possible, the easier the operation the more reliable the better. When we made the hydraulic pump and hydraulic valve test bench, it was not ideal to measure the oil discharge problem in the tank. For instance, when we used the test equipment of GSK to test the vacuum oil drain of the fuel tank, Oil viscosity is inversely proportional to, but also not put net (water test effect is very good). The use of globe valves and large diameter solenoid valve, it is not easy to automatically control is bulky. In order to meet the oil drain and automatic control, we design a kind of electric cone valve, after more than a year