高功率密度微型斜盘式柱塞泵虚拟样机仿真分析  

Virtual Prototype Simulation Analysis of High Power Density Miniature Axial Piston Pump

作　　者：邹怀静 王海波[1,2] 王鑫 曹明远[3] ZOU Huaijing;WANG Haibo;WANG Xin;CAO Mingyuan(College of Mechanical Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China;Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province,Chengdu Sichuan 610031,China;Haizhili Hydraulic Co.,Ltd.,Guiyang Guizhou 550000,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]轨道交通运维技术与装备四川省重点实验室,四川成都610031 [3]贵阳海之力液压有限公司,贵州贵阳550000

出　　处：《机床与液压》2022年第10期148-153,共6页Machine Tool & Hydraulics

基　　金：四川省科技厅计划应用基础研究项目(2021YJ0029)。

摘　　要：为提高1 mL/r微型斜盘式柱塞泵额定转速,提升微型液压泵功率密度,运用专业软件ADAMS和AMESim分别建立该型液压泵的动力学模型和液压模型,并联合得到其虚拟样机液固耦合仿真模型。基于建立的虚拟样机仿真模型,分析工作转速、微型液压泵中心弹簧预紧力及配流盘遮盖角等不同参数匹配下对液压泵输出性能的影响。结果表明:针对排量1 mL/r微型斜盘式柱塞泵,预紧力与转速具有正相关性;适当的负遮盖角在减小稳态脉动的同时降低了泵的低速性能;在额定转速3 000 r/min下,预紧力为理论计算值1.1倍时性能最优,负遮盖角为0.5°时流量脉动最小。In order to improve the rated speed and power density of 1 mL/r miniature axial piston pump,the dynamic model and hydraulic model of the hydraulic pump were established by professional software ADAMS and AMESim respectively,and the virtual prototype liquid-solid coupling simulation model was obtained jointly.Based on the virtual prototype simulation model,the effects of different parameters matching,such as working speed,preload force of central spring and valve port overlap angle,on the output performance of hydraulic pump were analyzed.The simulation results show that for the 1 mL/r miniature axial piston pump,the spring pre-tightening force has a positive correlation with the speed,and the appropriate negative valve port overlap angle can decrease the steady-state pulsation and reduce the low speed performance of the pump.At the rated speed of 3 000 r/min,the performance is the best when the pre-tightening force is 1.1 times of the theoretical value,and the flow pulsation is the smallest when the negative valve port overlap angle is 0.5°.

关 键 词：斜盘式柱塞泵 虚拟样机 弹簧预紧力 配流盘遮盖角 

分 类 号：TH137.51[机械工程—机械制造及自动化]