基于卵形齿轮的并联齿轮泵及其流量分析  

Analysis of Parallel Multi-gear Pump and its Flow based on the Oval Gear

作　　者：谭伟明[1] 

机构地区：[1]佛山科学技术学院机电工程系,广东佛山528000

出　　处：《机械传动》2014年第11期162-164,共3页Journal of Mechanical Transmission

基　　金：广东省科技计划项目资助(2010B010900041)

摘　　要：提出一种利用卵形齿轮作为工作元件的多齿轮泵,并讨论其流量特性。卵形齿轮的径向尺寸随其转角而变化,可以造成泵体与齿轮之间的容积变化,利用这种容积变化就能够输送液体。一对卵形齿轮的齿轮泵虽然结构简单,但是输出流量波动比较大,实际上难以满足应用的要求。利用两个相同的卵形齿轮泵组成并联结构,并使得二者的输出流量波动相互补偿,就能够极大地降低输出流量波动,获得具有实用价值的齿轮泵。A kind of multi-gear pump based on oval gear is proposed,and its flow characteristics are discussed.The radial size of the oval gear varies with its rotation angle continuously,making the volume between pump shell and the meshed gears change during rotation,and these changes can be used to send liquid forward.Although being simple in structure,the flow fluctuation of oval gear pump with two gears is great,which makes it unavailable in fact.The two oval gear pumps are used to compose parallel gear pump in structure can make the fluctuations of two pump outputs compensate each other,the flow fluctuations can be greatly decreased,and an available gear pump is obtained.

关 键 词：齿轮泵 卵形齿轮 流量特性 波动 

分 类 号：TH325[机械工程—机械制造及自动化]