困油现象对泵齿轮副综合刚度的影响分析  

Impact analysis of composite stiffness in gear pair of external gear pump

作　　者：李玉龙[1] 

机构地区：[1]成都大学工业制造学院,成都610106

出　　处：《农业工程学报》2011年第4期153-157,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：成都大学引进人才科研启动基金和安徽省自然科学研究项目(2004KJ317)

摘　　要：为了对外啮合齿轮泵齿轮副的动力学模型进行综合刚度的计算,从泵齿轮副的侧隙位置和啮合位置的交替变化,以及体积弹性模量的定义,建立了包括接触刚度与困油刚度在内的泵齿轮副综合刚度的计算模型,进行了一个困油周期内实例的仿真计算。研究结果表明泵齿轮副在综合刚度方面与常规齿轮副有所不同,困油刚度是影响综合刚度的最主要因素之一,得出了困油的存在能够减缓泵齿轮副振动的结论,为泵后续的动力学分析提供参考。For purposes of calculating composite stiffness for dynamic model of gear pair in external gear pump, with the periodic changes of backlash location and meshing position, from definition of bulk modulus of elasticity, a model of calculating composite stiffness with contact stiffness and trapped-oil stiffness was derived, and then a simulation was executed in a trapped-oil cycle. The results showed that gear pair of external gear pump was different from normal gear pair; trapped-oil stiffness was a main factor in composite stiffness. It was concluded that trapped-oil made vibration slow down and the results can provide references for the future dynamic analysis of gear pair in external gear pump.

关 键 词：齿轮泵 接触 刚度 外啮合齿轮泵 困油现象 接触刚度 困油刚度 综合刚度 

分 类 号：TH325[机械工程—机械制造及自动化] TP271.31[自动化与计算机技术—检测技术与自动化装置]