Ground wire rotor

The utility model provides a ground wire rotor which comprises a compressing device, a rotor, a spring and a pretightening buckle. The ground wire rotor is characterized in that the compressing device is arranged and fixed on a cylinder body; the compressed spring is placed on the inner side of the pretightening buckle; and the rotor is pressed on the compressing device by the spring to be closely contact with the compressing device. The ground wire rotor has the advantages that the contact resistance and the arcing times are decreased, electric energy loss is reduced, the work efficiency can be greatly improved, the ground wire cables are prevented from interwinding, the wastage of the cables is reduced, the structure is compact, the movement is flexible, and the practicality is high.