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我们认为,4125柴油机第3道主轴承烧瓦,源于构造。 1.烧瓦的原因 (1)从构造上看,曲轴的直线度偏差和主轴瓦的同轴度偏差,对第3道主轴承的影响最大。受其影响,4125柴油机第3道主轴承不能在所测得的间隙中工作,在局部位置要扣除形位偏差值。例如,所测得的轴承间隙是0.10毫米,曲轴的直线度偏差是0.03毫米,主轴瓦的同轴度偏差是0.03毫米,那么,在曲轴旋转
In our opinion, the No. 3 main bearing bushings of 4125 diesel engine are made from the structure. 1. Burned watts reasons (1) From the point of view of structure, crankshaft deviation of straightness and main bearing bush concentricity deviation, the third main bearing the greatest impact. Affected by it, 4125 diesel engine main bearing No. 3 can not work in the measured gap, in the local position to deduct the position deviation value. For example, the measured bearing clearance is 0.10 mm, the deviation of the straightness of the crankshaft is 0.03 mm, and the deviation of the coaxiality of the main bearing bush is 0.03 mm. Then,