中文摘要：

2D电液高速开关阀是采用具有双运动自由度阀芯的两级高速开关阀,该阀利用旋转电磁铁和拨杆拨叉机构驱动阀芯作旋转运动,实现导阀功能,由油液压力差推动阀芯作轴向移动,实现阀口的高速开启与关闭。为提高阀的动态特性,旋转电磁铁转子设计成3个52°叶片环形均布结构形式,拨杆拨叉对旋转电磁铁的输出转矩放大5倍。为测试2D高速开关阀的动态特性,设计了双摆轮和旋转电磁铁驱动2D高速开关阀两种实验方案。在建立数学模型和制作样机的基础上,对其动态特性进行了数字仿真和实验研究,仿真与实验研究结果吻合,2D高速开关阀的液压伺服螺旋机构具有很高的频响,当用旋转电磁铁驱动时,在28 MPa工作压力下,阀芯轴向行程为0.8 mm,开启时间约为18 ms,6 mm通径阀流量高达60 L/min。

英文摘要：

2D electrohydraulic high-speed on-off valve was a two-stage valve,which had a spool with two dimensional motions, a rotary electromagnet drove the spool to rotate by a set of lever-fork and achieve pilot function, and pressure difference pushed the spool to open or close quickly. The form of three circumferential uniformly distributed 52° blades was adopted by the rotor of rotary electromagnet. The output torque of rotary electromagnet was multiplied by five times, the rotor inertia was reduced by lever- fork and the dynamic characteristics of 2D high-speed on-off valve were improved. To test the dynamic characteristics of 2D high-speed on-off valve driven by double torsion pendulum wheel and rotary electromagnet, two experimental programs of the valve were designed. The digital simulation and experimental results were quite coincide, which showed that the dynamic characteristics of 2D high-speed on-off valve were very quick; when the system pressure was 28 MPa and the valve of 6 mm diameter with spool driven by rotary electromagnet, the dynamic response time was about 18 ms, spool displacement was 0. 8 mm and the flow rate was 60 L/min.