Pay-off traction device

The invention provides a pay-off traction device, and relates to the field of power construction devices. The pay-off traction device comprises two traction structures, two movable chains, and an anti-torsion chain; each traction structure comprises a tension plate, the two opposite side edges of each tension plate are provided with a first traction part and a second traction part correspondingly, at least one surface of each tension plate is provided with a plurality of arc-shaped long-strip protruding edges in parallel at intervals, at least one bearing is rotationally connected between every two adjacent arc-shaped long-strip convex edges on the tension plate, and the rotating axis of each bearing is perpendicular to the distribution direction of the arc-shaped long-strip convex edges; the two ends of the movable chains are rotationally connected with the first traction parts of the two tension plates correspondingly; and the anti-torsion chain is located between the two movable chains, one end of the anti