Automatic voltage regulating device

The utility model discloses an automatic voltage regulating device, which comprises a winding device and a protective shell, wherein the protective shell is arranged on the periphery of the winding device, and is a cabinet body with a cooling device; a fixed frame is arranged in the cabinet body; the fixed frame is fixed with the bottom end of the cabinet body; the winding device is fixedly arranged in the fixed frame; a sampling module is fixedly arranged at the upper end in the cabinet body, and is electrically connected with the winding device; a motor is arranged at the upper end of the fixed frame; an output end of the motor extends downwards into the fixed frame and is in transmission connection with a shaft of the winding device through a gear; and a control module is arranged at one side of the cabinet body, and is electrically connected with the motor and the sampling module respectively. According to the automatic voltage regulating device, the defects in the prior art are overcome; the automatic voltage regulating device without manual shaking is realized; the voltage regulating accuracy and stability are ensured; and the safety during personnel operation is improved.