Shaft insulation monitoring device

The utility model discloses a shaft insulation monitoring device, which belongs to the field of monitoring devices, and comprises a protective shell and a transmission belt, the inner wall of the protective shell is fixedly provided with an insulation monitor and a partition plate, the partition plate is arranged above the insulation monitor, the upper end of the partition plate is fixedly provided with a servo motor, and the servo motor is arranged above the insulation monitor. A transmission rod is fixedly installed at the output end of the servo motor, a transmission rod is fixedly installed at the end, extending out of the protective shell, of the transmission rod, two fixing blocks are fixedly installed on the side wall of the transmission rod, the two fixing blocks are in threaded connection with a threaded rod, and the end, penetrating through the two fixing blocks, of the threaded rod is in threaded connection with a nut; a sensor is fixedly installed at the end, away from the threaded rod, of the rot