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S195型柴油机烧瓦后,会引起曲轴瓦定位缺口损坏,迫使曲轴在座孔中滑动。此外,定位销脱落后,也会造成同样的后果。由于轴瓦在座孔中滑动,极易磨损座孔,使曲轴瓦与座孔由过盈配合变成间隙配合。这时,曲轴瓦的径向定位被破坏。在这种情况下,即使更换新轴瓦,也无法恢复正常的过盈量。我们用下述方法处理,效果很好。 (1)在座孔外缘上,用平锉加工出3个相间120°的定位楔角凹槽。 (2)将曲轴瓦装入座孔,在与座孔定位楔角凹槽相对应的位置划
S195 diesel engine after burning tile, will cause damage to the crankshaft bearing notch, forcing the crankshaft slide in the seat hole. In addition, the dowel pin, it will have the same consequences. As the bearing bush slides in the seat hole, it is easy to wear the seat hole so that the crank bearing shoe and the seat hole become interference fit with the clearance fit. At this time, the radial positioning of the crank bush is destroyed. In this case, the normal interference can not be restored even if the new bearing is replaced. We use the following method to deal with, the effect is very good. (1) on the outer edge of the seat hole, with a flat file processing 3 phase 120 ° positioning wedge angle groove. (2) Install the crank bearing into the seat hole and draw the position corresponding to the seat groove with the wedge angle groove