Traction mechanism of crawler-type slip form paver

The utility model discloses a traction mechanism of a crawler-type slip-form paver, which comprises a pair of front traction arms, a pair of rear traction arms and two connecting plates, the front traction arms and the rear traction arms are connected with the connecting plates, and the connecting plates are positioned between the front traction arms and the rear traction arms on the same side of a machine body of the crawler-type slip-form paver; the two rear traction arms are fixedly connected with an ironing plate of the crawler-type slip form paver; a sliding groove is formed in the face, facing the rear traction arm, of the connecting plate, the sliding groove is matched with the end, facing the connecting plate, of the rear traction arm, a wheel shaft of a fixed pulley is fixedly arranged on the portion, located above the sliding groove, of the connecting plate, a connecting rope is wound around the fixed pulley, and the two ends of the connecting rope are fixedly connected to the rear traction arm. Acc