曲轴与轴瓦是发动机的心脏和关键部件,曲轴运行要受到复杂的扭转、弯曲、剪切和拉压等交变应力作用,以及由扭转振动和弯曲振动而产生的附加载荷作用,因此,曲轴与瓦轴相互作用的会产生较大接触压力,润滑不良会使润滑油膜不易形成,或形成的油膜被挤破。随着曲轴旋转运动,急剧增加的热量使轴瓦局部发热融化,在摩擦力的作用下,融化的金 Crankshafts and bushings are the heart and key components of the engine. Crankshaft operation is subjected to complex alternating stresses such as twisting, bending, shearing and tensioning as well as additional loads caused by torsional and bending vibrations. Therefore, crankshafts and Wazhou interaction will have a greater contact pressure, poor lubrication will make the lubricant film is not easy to form, or the formation of the film was squeezed. With the rotation of the crankshaft, the sharp increase in heat to the local heating of the bearing melting, under the action of friction, the melting of gold