Drive shaft-type parts are an important part of the mechanical drive diesel locomotive. Drive shaft is the role of the diesel engine output power delivered to the hydrostatic transmission, drive two hydrostatic pump work, the pump

     A high-pressure hydrostatic oil, while according to the oil, the water temperature requirements, and adjusting the hydraulic motor driving the work, cooling the high, low-temperature cooling water. It can be seen, the main drive shaft is borne by the torque. The torque varies with the size of the one hand, the engine speed changes, on the other hand diesel engine output power increases with the increase, so the shaft is alternating torque suffered, after long-term use, certainly in the weakest part began crack, if not in time, the stress concentration at the crack damage occurs, it will happen in a short time tearing driveshaft failure.