曲轴定心与动平衡技术的探讨

The Discussion of Crankshaft Alignment and Dynamic Balance Technology

对曲轴定心的两种工艺——几何定心和质量定心进行研究,指出不同的定心方式对动平衡工序的影响不同,并对动平衡工序去重量的影响因素进行分析,得出了动平衡工序节拍的计算方法。通过对发动机生产厂家的生产实例以及对国外定心工艺发展趋势进行比较可知,在曲轴毛坯状态较好的情况下,当加工面积比较小时,可采用质量定心工艺;加工面积比较大时,可采用几何定心工艺。

Study two kinds of technologies for crankshaft alignment-geometry alignment and mass alignment,point out that dynamic balance working procedure is affected by different alignment type,and analyze the effect factor of dynamic balance working procedure weight loss,and get the calculation method of dynamic balance working procedure tact. Through the comparisons of actual production in engine manufacturer and of development trend of foreign alignment technology,conclude that in the good condition of crankshaft blank,when the machining surface is small,use mass alignment, when the machining surface is big, use geometry alignment.