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在发动机传动装置中,曲轴是极为重要的零件之一,由于其形状和结构的复杂,加工后的成品通常存在较大的径向跳动,而导致挠曲变形,为保证曲轴的性能,需要对其进行校直。跳动量的测量是校直工艺中相当重要的一个环节,但跳动量的测量往往会受到曲轴自重引起的挠度的影响,为此,文中提出了一种综合利用有限元分析和插值计算的方法,来去除自重影响,从而实现曲轴跳动量的精确测量,为校直工艺参数的准确确定进而开发出精密曲轴校直机奠定了坚实的基础。
In the engine transmission, the crankshaft is one of the most important parts. Due to its complex shape and structure, the finished product usually has large radial runout, which leads to deflection. To ensure the performance of the crankshaft, It is straightened. The measurement of the amount of beating is a very important link in the straightening process. However, the measurement of the amount of beating is often affected by the deflection caused by the weight of the crankshaft. Therefore, a method of comprehensively using finite element analysis and interpolation is proposed in this paper. To remove the influence of self-weight, in order to achieve accurate measurement of crankshaft runout, accurate calibration of the process parameters for the development of precision crankshaft straightening machine laid a solid foundation.