(1)主减速器齿轮异响1台液压挖掘机,在更换主减速器齿轮后,行驶时连续发出“嗷嗷”的响声,随着机器转速的升高,响声增大。用手触摸驱动桥,感觉发热烫手。分析认为,由于新更换齿轮,其润滑状况应该良好。由声响特征判断是齿轮间隙过小所致。主减速器齿轮异响的原因主要是齿轮啮合间隙调整不合理或齿轮磨损。若发出无节奏的“咯噔、咯噔”的撞击 (1) Major reducer gear abnormal noise 1 hydraulic excavator, after changing the gear of the final reducer, emit “ 嗷 嗷 ” sound continuously while driving, and as the machine speed increases, the sound increases. Drive the bridge by hand, feeling hot and hot. Analysis, due to the new replacement gear, its lubrication should be good. Judged by the acoustic characteristics of the gear gap is too small. Main reducer gear abnormal sound is mainly due to unreasonable gear meshing gap adjustment or gear wear. If the issue of non-tempo “slightly 噔, slightly 噔 ” impact