Quick feeding and retracting electric servo cylinder structure of double-disc pulping machine

The utility model discloses a quick feeding and retracting electric servo cylinder structure of a double-disc pulping machine. The device comprises a connecting plate, a shell, a servo motor, an upper synchronous belt wheel, a belt wheel protective cover, a synchronous belt, a lower synchronous belt wheel, a shaft end gland, a bearing chamber, a bearing, a lead screw, a nut, a guide rod, a sliding block, a wear-resistant sleeve and a movable hollow shaft, the upper synchronous belt wheel and the lower synchronous belt wheel are connected and driven through the synchronous belt, the lead screw is connected with the bearing in the bearing chamber, and the movable hollow shaft is fixedly connected with the nut. The nut is movably connected with the lead screw in a threaded fit mode. The device has the characteristics of simple structure, convenience in assembly and maintenance, high cutter feeding and retracting precision, high cutter feeding and retracting speed, high pulping efficiency and the like. 本实用新型公开了一种