双圆弧齿轮泵不同工况下流量特性分析  

Analysis of flow characteristics of double circular arc gear pump under different working conditions

作　　者：韦智博 徐恺[1] 黄成 李阁强[1] 肖英 WEI Zhibo;XU Kai;HUANG Cheng;LI Geqiang;XIAO Ying(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471000,China)

机构地区：[1]河南科技大学机电工程学院,洛阳471000

出　　处：《现代制造工程》2024年第1期11-16,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51205108)。

摘　　要：为分析不同工况下的双圆弧齿轮泵流量特性,使用AMESim软件对双圆弧齿轮泵进行精确建模,设定不同转速、负载压力和气体质量分数并分析其瞬时出口流量和出口流量脉动率。结果表明:转速与瞬时出口流量呈正相关,转速为3000 r/min时的平均出口流量是转速为1500 r/min时平均出口流量的2.17倍;负载压力与瞬时出口流量呈负相关,负载压力为6 MPa时的平均出口流量较负载压力为2 MPa时平均出口流量减小0.621 L/min;在转速为3000 r/min、负载压力为2 MPa时,出口流量脉动率最小;出口流量脉动率与转速呈负相关,与负载压力呈正相关。油液的气体质量分数增大会加剧双圆弧齿轮泵空化现象,对流量特性造成不利影响。To analyze the flow characteristics of double circular arc gear pumps under different operating conditions,AMESim software was used to accurately model the double circular arc gear pump,different rotational speeds,load pressures,and gas mass fractions were set,and its instantaneous outlet flow rate and outlet flow pulsation rate were analyzed.The results show that the rotational speed is positively correlated with the instantaneous outlet flow rate,with an average outlet flow rate of 3000 r/min being 2.17 times that of 1500 r/min;the load pressure is negatively correlated with the instantaneous outlet flow rate,and the average outlet flow rate at a load pressure of 6 MPa is reduced by 0.621 L/min compared to the average outlet flow rate at a load pressure of 2 MPa;when the rotational speed is 3000 r/min and the load pressure is 2 MPa,the outlet flow pulsation rate is the smallest;the pulsation rate of outlet flow is negatively correlated with rotational speed and positively correlated with load pressure.An increase in the gas mass fraction of the oil will exacerbate the cavitation phenomenon of the double circular arc gear pump,which has a negative impact on the flow characteristics.

关 键 词：双圆弧齿轮泵 流量特性 AMESIM软件 精确建模 

分 类 号：TH137[机械工程—机械制造及自动化] TH325