Lightweight rigid traction device for overload vehicle

The utility model relates to a lightweight rigid traction device for an overload vehicle, and belongs to the field of machinery. The lightweight rigid traction device for the overload vehicle comprises a main rod and a secondary rod, wherein the main rod is axially connected with the secondary rod; the main rod consists of a titanium alloy connecting ring, a traction rod piece I and a titanium alloy fork head I; the titanium alloy connecting ring and the titanium alloy fork head I are respectively connected to two ends of the traction rod piece I; and the secondary rod consists of a titanium alloy fork head II, a traction rod piece II and a titanium alloy fork head III, and the titanium alloy fork head II and the titanium alloy fork head III are respectively connected to two ends of the traction rod piece II. The lightweight rigid traction device for the overload vehicle has the advantages that the lightweight rigid traction device is simple and novel in structure and light in weight, the weight of the traction device is only 40% of that of the existing traction device, the problem that the existing steel rigid traction device for an overload vehicle is heavy and is high in operation intensity, low in operation efficiency and poor in safety is solved, and quick and efficient rescue capability on the overload vehicle is improved. The mechanical property of the rigid traction device is improved, the technical problem that the original rigid traction device is bent and deforms easily under the condition of complex stress is solved, reliable operation of various limiting conditions can be implemented, and the practicality is high.