双作用椭圆轨道滚柱泵输出特性  

Output Characteristics of Double-acting Elliptical Orbit Roller Pump

作　　者：柯尊荣[1] 陈舰[1] 陈凯[1] 

机构地区：[1]南昌大学机电工程学院,南昌330031

出　　处：《农业机械学报》2014年第2期320-327,共8页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50865006)

摘　　要：基于椭圆面积弧长特性分析,推导出双作用椭圆轨道滚柱泵的容积公式,继而求得该泵的流量及脉动;通过仿真,研究了该泵结构尺寸对流量脉动的影响,并对脉动程度作出分析。结果表明:该泵的流量输出是相同尺寸径向柱塞泵的5倍以上,是相同尺寸叶片泵的1.5倍以上,而脉动率只是微增;该泵配流角度与一般柱塞泵或叶片泵的配流角度之间存在一个相位差,差值为13°;脉动主要受滚柱个数影响,一般趋势是随个数增加而降低,但滚柱个数为4的倍数时脉动较大。该泵输出特性的分析结果为滚柱泵结构的优化及减振降噪等提供了理论依据。The new kind of roller pump is the combination of radial ball piston and vane pump. Based on the characteristics an orbit roller pump was alysis of elliptical area and length, the volume formula of double-acting elliptical deduced, and the flowing and pulsating of the pump were obtained. At last through the simulation , the effect of the structural dimensions on the flowing and pulsating of the pump was received. The analysis results indicated that the flowing of the pump is the five times of that of radial piston pump, and the 1.5 times of vane pump at the same structural dimensions. And the pulsation rate was slightly increased. There was a phase difference comparing with radial piston pump and vane pump, which was 13° in the article. The pulsation was generally reduced with the increasing of rollers＇ number, but it was larger with the number being a multiple of 4. The output characteristics of the analysis results provided a theoretical basis for the roller pump structure Optimization and noise and vibration reduction.

关 键 词：滚柱泵 椭圆轨道 输出特性 

分 类 号：TH137[机械工程—机械制造及自动化]