The main functions of the copper gear in the separator include transmitting power and motion, changing rotation speed and torque, changing rotation direction, achieving long-distance transmission, smooth transmission and buffering vibration reduction, precise transmission, and realizing various forms of motion. Specifically: Transmission of power and motion: Through two or more meshing gears, the power and motion of one gear can be transmitted to another gear, thereby driving the operation of the entire mechanical system. Changing rotational speed and torque: By combining gears of different sizes, it is possible to increase or decrease rotational speed and change torque. The large gear driving the small gear can increase speed and reduce torque, while the small gear driving the large gear can reduce speed and increase torque.