Д100柴油机在较高转速(达850转/分)下,传递约2000-3000马力功率的铸铁曲轴应当有较大的安全系数。这种要求也鉴于铸铁曲轴的主轴项在相邻轴承座之间总阶梯度不断增大时会产生强烈且不均匀的磨损。研究曲轴工作后表明,总阶梯度的增长基本上是由于曲轴主轴颈受磨耗的结果。沿曲轴长度的阶梯度数值在不同的平面内是不同的(图1) ,而每个 Д100 Diesel At higher speeds (up to 850 rpm) cast iron crankshafts that deliver approximately 2000-3000 horsepower should have a large safety factor. This requirement also gives rise to strong and uneven wear of the cast iron crankshaft main shaft as the total step gradient between adjacent bearing housings increases. Study of crankshaft work shows that the growth of the total gradient is basically due to the crankshaft main journal wear results. The step values ​​along the length of the crankshaft differ in different planes (Figure 1) and each