One kind of high-volume high-response proportional servovalve

The present invention relates to one kind of a large flow of high frequency response proportional servo valve. The technical scheme is: the valve body (6), the piston base (5) and a lower valve body (4) integrally connected by a bolt (8). The lower part of the jet pipe (15) passes through the valve body (6) of the upper cavity (9) fixed to the upper end of the upper portion of the elastic sealing bearing member (14), the jet tube (15) is fixed to the armature assembly (16). The receiver (33) is fixedly mounted within the upper cavity (9), on the receiver (33) with the lower end surface of the displacement sensor (34) is fixedly connected to the end face of the coaxial line. A displacement sensor (34) movably inserted into the lower portion of the piston rod section (29) of the guide hole (28). A lower portion of the piston rod section (29) removably mounted in the central cavity (11), the piston (26) removably fitted on the body (6) of the lower cavity (12), the lower connecting rod section (31) Events a through hole through the piston base (5) of the main spool (32) removably fitted inside (19) of the cylindrical cavity. The present invention has simple structure, convenient maintenance, strong anti-pollution, high linearity and high sensitivity.