论文部分内容阅读
汽车钢板弹簧的润滑是十分重要的,大家知道钢板弹簧是由许多具有弹性、宽厚一致、而长短不一的钢片所组成的。其作用是把车架与车桥用悬挂的形式连接在一起,裸露在车架与车桥之间,承受车轮对车架的冲击载荷,消减车身的剧烈震动,保持车辆行驶的平稳性和不同路况的适应性。 钢板弹簧在承受冲击载荷时形成伸展运动,钢片与钢片之间产生强烈摩擦,也就是产生挤压拉伸现象,两个摩擦表面又产生两个不同方向的运动摩擦力,造成钢板弹簧温度升高,出现表面拉伤,呈现出细小的裂纹,在冲击载荷频率增大的同时,伸展运动所产生的摩擦运动力也在增大,在应力集中点达到疲劳极限就会造成单片或整垛断裂。
Automotive leaf spring lubrication is very important, as we all know leaf spring is composed of many flexible, generous, but the length of the composition of steel. Its role is to frame the bridge with the suspension in the form connected together, exposed between the frame and the axle to withstand the impact of the wheel on the frame load, reduce the body vibration, to maintain vehicle stability and different Adaptability of traffic conditions. The leaf spring forms an extension motion when it receives the impact load. The strong friction between the steel sheet and the steel sheet results in the phenomenon of extrusion stretching. The two friction surfaces also generate two different directions of the movement friction force, causing the leaf spring temperature Increase the surface tension, showing a small crack in the impact load frequency increases at the same time, the stretching movement of the frictional movement force is also increased, in stress concentration point to reach the fatigue limit will result in monolithic or entire stack fracture.