Traction beam for railway tank car

The invention particularly relates to a traction beam for a railway tank car. The problems that when an existing traction beam is connected with an end socket, stress concentration at the connecting position is too large, a weld joint at the connecting position of the traction beam and the end socket cracks, and the overall manufacturing and assembling difficulty of a non-domestic standard traction beam is large are solved. The device comprises two webs, an upper cover plate, a lower cover plate, an integrated impact seat and a rear impact seat, the front end of the upper cover plate is a plane, and the rear end of the upper cover plate is an upward-bent inclined plane; the upper end faces of one ends of the two webs are matched with the lower surface of the upper cover plate and are perpendicularly connected to the two sides of the lower surface of the upper cover plate respectively, and the upper end faces of the other ends of the webs are matched with the lower surface of a tank body of the railway tank ca