Crankshaft structure applied to high-load high-speed punching machine

The crankshaft structure applied to the high-load high-speed punching machine comprises a connecting rod journal, one side of the outer surface of the connecting rod journal is fixedly connected with a first containing piece, and one end of the connecting rod journal is fixedly connected with a first power crank handle. According to the crankshaft structure applied to the high-load and high-speed punching machine, through the arrangement of the first power crank handle, the second power crank handle, the oil inlet hole and the oil outlet hole, the first power crank handle and the second power crank handle bear the effects of gas pressure, inertia force and inertia moment, the stress is large and complex, the impact effect of alternating loads is borne, and the impact force is large. Lubricating oil is injected into the crankshaft through the oil inlet hole so as to reduce crankshaft abrasion and reduce the reject ratio of stamping products, a lubricating oil film layer is formed between the shaft sleeve and t