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目前,工业上广泛使用的电液伺服阀大都为喷嘴挡板式和射流管式,而EMG伺服阀则是旋转盘式结构,是人们在研究泄漏缝隙的基础上开发出的新型单级电液伺服阀。 1.EMG电液伺服阀的结构 EMG伺服阀是由微型力矩马达和旋转盘液压阀组成,如图所示。微型力矩马达主要由固定励磁线圈8和电枢轴9组成,电信号由标准接头13通过阀块1内的通道与励磁线圈8相连接,力
At present, most of the electrohydraulic servo valves widely used in industry are nozzle baffle and jet pipe, while the EMG servo valve is a rotary disc structure, which is a new type of single-stage electro-hydraulic developed on the basis of researching the leakage gap servo valve. 1.EMG electro-hydraulic servo valve structure EMG servo valve is composed of a miniature torque motor and rotating disc hydraulic valve, as shown. The micro-torque motor is mainly composed of a fixed excitation coil 8 and an armature shaft 9, the electric signal is connected with the excitation coil 8 through a passage in the valve block 1 by a standard connector 13, and the force