摘要
变流量轴向柱塞泵输出流量的稳定性是衡量其性能的重要指标,配流盘上的节流槽对流量脉动有重大影响,流量脉动又会引起压力脉动。为减小变流量轴向柱塞泵的流量脉动,利用AMESim建立变流量轴向柱塞泵模型,给出节流槽过流面积计算公式,利用MATLAB绘制节流槽过流面积图,在柱塞子模型中导入数值进行仿真分析。分析发现:在柱塞腔刚与压油腔连通时,流量倒灌现象与过流面积成正相关;随着柱塞腔继续转动,流量脉动与过流面积成负相关。根据该研究设计一种V-梯形节流槽,有效提高变流量轴向柱塞泵性能。
The stability of the output flow of variable flow axial piston pump is an important index to judge its performance.The throttling groove on the valve plate has a significant impact on the flow pulsation,which will cause pressure pulsation.In order to reduce the flow pulsation of variable flow axial piston pump,the variable flow axial piston pump model was established with AMESim,the calculation formulae of throttling groove overflow area were given,the throttling groove overflow area diagrams were drawn with MATLAB,and the numerical values were imported into the column plug model for simulation analysis.It is found that when the plunger cavity is just connected with the oil pressure cavity,the flow backflow phenomenon is positively correlated with the overflow area,and the flow pulsation is negatively correlated with the overflow area as the plunger cavity continues to rotate.Then,according to the research,a V-trapezoidal throttling groove was designed to effectively improve the performance of variable flow axial piston pump.
作者
孙泽刚
何德文
雷德全
杨莽
SUN Zegang;HE Dewen;LEI Dequan;YANG Mang(School of Mechanical Engineering,Sichuan University of Science&Engineering,Yibin Sichuan 644000,China;Sichuan Push Drive Co.,Ltd.,Yibin Sichuan 644000,China)
出处
《机床与液压》
北大核心
2023年第9期174-179,共6页
Machine Tool & Hydraulics
基金
四川省科技计划项目(2022YFG0075)
过程装备与控制工程四川省高校重点实验室开放基金资助项目(GK202104)。
