Long-stroke large-thrust servo electric mechanism

The utility model discloses a long-stroke large-thrust servo electric mechanism, and particularly relates to the technical field of servo electric mechanisms, the long-stroke large-thrust servo electric mechanism comprises an electric cylinder outer shell, a servo motor is fixedly installed on one side of the electric cylinder outer shell, and a vacant part is arranged on the surface of the otherside of the electric cylinder outer shell. A coupler is arranged in the electric cylinder outer shell, and one end of the coupler is fixedly connected with the end of an output shaft of the servo motor. The planetary reducer is arranged and adopts a 1: 50 structure for combined design, the requirements of personalized application scenes and technical indexes of customers are met while the requirement of large thrust indexes is met, the ball screw and the ball screw nut are arranged, the ball screw is adopted for stretching out and drawing back of the motor mechanism, and the service life of the motor mechanism is prol