白书战;贾迎军;张海龙;李国祥;张锡朝
1:山东大学能源与动力工程学院
2:山东英才职业技术学院
3:山东省交通运输集团
4:山东大学能源与动力工程学院
摘要:本文通过振动测试,分析了某车用发动机高压油管断裂的原因。根据振动测试的结果,提出了两项改进措施:一是改变支架刚度来改变其固有频率,使共振转速出现在发动机不常用的转速范围内;二是将喷油泵与驱动齿轮间的连接方式改用法兰来连接,避免了由于轴的加工误差和安装同轴度的影响。经过试验测试,改变连接方式后有效缓解了高压油管的振动。
关键词: 车用发动机;;高压油管;;振动测试
Abstract: For damage of high pressure oil
pipe in some vehicle engines,this paper analyses the reasons by vibration
test.Two methods are presented in the paper.One is to keep the resonant speed
within the range of speed,which is not used in common,by changing the rigidity
of bracket.Another one is to connect the injection pump to the driving gear
with flange to avoid the influence from machining error of shaft and coaxial
degree while installing.It is shown that vibration is lighten efficiently when
connection is changed.
Keywords: Vehicle Engine;Fuel Injection
Pipe;Vibration Test
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[3]厉凌云.某型主机滑油管系异常振动原因分析及对策.中国造船.2004,6:41-42.
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