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yan zhong shao wa de wei hai yu fang zhi
Author(s): 
Pages: 34
Year: Issue:  10
Journal: Farm Machinery

Keyword:  烧瓦主轴瓦连杆大头拉伤合金层机油压力加负荷摇转紧度严重烧伤;
Abstract: <正>发动机发生了烧瓦,如果判断及时,处理得当,一般来说仅更换烧坏的瓦片即可。如果处理不当,继续带"病"工作,则会造成更严重的事故。已经烧伤、拉伤或合金脱落的瓦片继续在半干磨擦或干磨擦的条件下工作,轴瓦处的温度迅速升高,以致瓦片与轴颈抱在一起。此时如果发动机仍在大油门运转,则负荷虽有增加,但不一定蹩熄火,而很可能是曲轴带动瓦片在轴瓦座孔(机体主轴瓦座孔或连杆大头孔)中转动,并逐渐把瓦片上的止推凸舌硬是给挤平。这一过程的时间往往较短,往往不易及时判断和正确处理。这样,轴颈与
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