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柴油机工作时,在负荷不变的情况下,出现排气管冒烟,机油温度急剧上升到90℃以上,机油压力突然大幅度下降,发出刺耳的“唧唧”声,运转吃力以致自行车停车,停机后摇转曲轴时摇不动,这就是烧瓦抱轴现象。烧瓦的主要原因是由于润滑不良,轴和轴瓦之间不能形成良好的油膜,在高速干摩擦、温度极高的情况下,轴和轴瓦粘合,造成轴和轴瓦的损坏,发生烧瓦事故不仅影响浇地,贻误农时,还会造成经济损失。
Diesel engine at work, under the same load, the exhaust pipe smoke, the oil temperature rose sharply above 90 ℃, a sudden substantial decline in oil pressure, issued a harsh “chirp” sound, so hard to stop cycling operation, stop Swing crankshaft can not shake, this is the phenomenon of burning tile hold axle. The main reason for burning tile is that poor lubrication can not form a good oil film between the shaft and the bearing shell. Under the conditions of high-speed dry friction and high temperature, the shaft and the bearing pad are bonded, causing the damage of the shaft and the bearing pad and the occurrence of the tile burning accident Not only affect irrigated land, delaying farming, but also cause economic losses.