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新买的S195柴油机使用中有时会发生水箱中窜出气泡、排气管冒白烟、发动机工作粗暴等现象。当卸下缸盖检查,发现缸套台肩处已断裂,有的重新装新缸套后,仍发生断裂,使拖拉机无法工作,甚至发生机体爆炸等事故。对此故障,我们进行了多种检查与试验,发现是由于机体上缸套台肩孔过浅,气缸套装入机体后,缸套台肩凸出机体过高所致。按设计要求S195柴油机缸套台肩高度为10~(+0.05)毫米,机体的台肩孔深10_(-0.24)~(-0.15)毫米,缸垫厚1.8_(-0.15)~(+0.10)毫米,
The newly purchased S195 diesel engine sometimes occurs in the water tank venting bubbles, exhaust pipes take white smoke, the engine rough work and so on. When the removal of the cylinder head inspection and found that the cylinder liner has been broken at the shoulder, and some re-install the new liner, the fracture still occurs, so that tractors can not work, and even the body explosion and other accidents. This failure, we conducted a variety of inspections and tests found to be due to the body cylinder liner shoulder hole too shallow cylinder liner into the body, the cylinder shoulder protruding body is too high due. According to the design requirements S195 diesel engine liner shoulder height of 10 ~ (+0.05) mm, the body shoulder hole depth 10 _ (- 0.24) ~ (-0.15) mm, the cylinder pad thickness 1.8 _ (- 0.15) ) Millimeter,