Crust breaking mechanism of aluminum electrolysis crown block

The utility model provides a crust breaking mechanism of an aluminum electrolysis crown block, and belongs to the technical field of aluminum processing. The device comprises a rack and a swing rod, one end of the swing rod is hinged to the rack, the swing rod can swing up and down, a sensor capable of detecting an approaching object is arranged on the rack, and the device is characterized in that a sensing rod is arranged on the rack in a sliding mode, and when the swing rod swings upwards, the sensing rod can sense the approaching object. The swing rod can push one end of the sensing rod so that the other end of the sensing rod can slide into the sensing range of the sensor, the sensor is located on the side portion of the sliding path of the sensing rod, the sensor directly senses the swing rod to complete position detection of the swing rod, direct contact between the swing rod and the sensor is avoided, and the detection accuracy is improved. Meanwhile, due to the fact that the sensor is arranged on the