Why is the crankshaft of diesel engine broken?

1, high temperature crankshaft fracture. Crankshaft fracture at high temperature is the most common fracture mode. The main reason of this kind of crankshaft fracture is that the user improperly operates the diesel engine, which leads to the phenomenon of high temperature cylinder pulling inside the diesel engine, which leads to the crankshaft fracture, damage and even scrapping of the diesel engine.

2. Overload operation leads to crankshaft fracture. Crankshaft is the main power transmission and bearing component in the engine, so if users blindly increase the load and throttle when using diesel engine, the load of diesel engine crankshaft will exceed the specified bearing capacity, which will lead to crankshaft fracture.

3, the engine crankshaft material is unqualified, and the fatigue strength is poor. Because the crankshaft needs to work continuously in use, the material of crankshaft is very important to the quality of products. Therefore, if the quality of diesel engine crankshaft purchased by users is not up to standard and its fatigue performance is poor, then the crankshaft is easy to break during use. Because the crankshaft is inside the diesel engine, it is difficult for users to distinguish whether the crankshaft is qualified or not.