齿轮式机油泵齿形对流量特性的影响分析  

Discussion on influence of gear tooth shape on flow characteristic in gear pump

作　　者：王文[1] 尹艳美 贺尚红[1] 刘光明 

机构地区：[1]长沙理工大学工程车辆安全性设计与可靠性技术湖南省重点实验室,湖南长沙410114 [2]湖南机油泵股份有限公司,湖南衡阳421400

出　　处：《食品与机械》2016年第12期92-95,共4页Food and Machinery

基　　金：国家自然科学基金项目(编号:51275059);湖南省自然科学基金项目资助(编号:14JJ7025A;2015JJ4003)

摘　　要：建立了齿轮式机油泵不同齿形的齿轮模型,运用pumplinx进行了内流场仿真,分析了稳态流量和流量脉动的特性。研究表明:与直齿轮式机油泵比较,在低中转速时,其他齿形的齿轮式机油泵流量都低于直齿轮式机油泵的流量,但流量脉动有所降低,其中错位齿轮式机油泵降低的幅度最大,1 100r/min时降低了27%左右,2 700r/min时降低了35%左右。对直齿轮式机油泵的流量进行了实验测试,与仿真结果基本吻合,验证了齿轮式机油泵内流场模型的正确性,为机油泵的研发提供了技术支持。The oil pump models with different gear tooth shapes were established and the internal flow field simulation were taken by utili- zing Pumplinx. Then the characteristics of steady state flux and flow pulsation were analyzed. The results were as follows. Compared with the straight gear pump, the flow pulsation of other toothed gear pumps was much lower, ahhough they flowed more slowly at the low and medium speeds. Especially the flow pulsation of dislocation gear pump was much lower than straight gear pump. Moreover, It decreased 27% at 1 100 r/min and 35% at 2 700 r/min comparing with the straight gear pump. Finally the straight gear pump flow was practically teated and the experimental results match the simulation very well. Therefore. it was proved that the internal flow field models were correcl, and then this might technically support the oil pump development.

关 键 词：齿轮式机油泵 齿形 仿真分析 流量 流量脉动 

分 类 号：TH325[机械工程—机械制造及自动化]