阀配流压力脉动扰动下的柱塞泵滑靴副润滑特性  

Lubrication characteristics of slipper pair of piston pump under the disturbance of valve distribution pressure pulsation

作　　者：赵凯平 何涛[1,2] 王传礼[1,2] 陈强曼 罗刚 ZHAO Kaiping;HE Tao;WANG Chuanli;CHEN Qiangman;LUO Gang(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan Anhui 232001,China;Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan Anhui 232001,China)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001 [2]安徽理工大学矿山智能装备与技术安徽省重点实验室,安徽淮南232001

出　　处：《航空动力学报》2023年第6期1432-1445,共14页Journal of Aerospace Power

基　　金：国家自然科学基金(52205041);安徽省高校优秀青年人才支持计划(gxyq2022017);矿山智能装备与技术安徽省重点实验室开放基金(ZKSYS202101);安徽省矿山智能技术与装备科研创新团队(2022AH010052)。

摘　　要：阀配流轴向柱塞泵滑靴受力状态及油膜动态边界值与端面配流泵不同,为研究其润滑特性,建立一种应用于阀配流轴向柱塞泵的滑靴副工况模拟和数值解析耦合求解模型,分析柱塞运动频率、系统负载及不同分级定流量对滑靴副润滑特性的影响。结果表明:阀配流滑靴副主要在摩擦力矩作用方向发生倾覆,高压区到低压区的过渡期及低压区更易发生偏磨磨损;柱塞运动频率增大会降低滑靴发生倾覆偏磨的危险性,但也会降低滑靴副稳定性;系统负载增大会使油膜厚度减小,且高压区滑靴倾覆角减小,而低压区滑靴倾覆角增大;不同分级定流量下,当柱塞数大于3时,奇数柱塞组合时滑靴不易发生倾覆,而偶数柱塞组合时滑靴易发生倾覆磨损且高低压区压力变化幅度增大。The stress state and oil film dynamic boundary value of slipper of valve distribution axial piston pump are different from those of end face distribution pump.In order to study its lubrication characteristics,a coupling model for slipper pair working condition simulation and numerical analysis applied to valve distribution axial piston pump was established to analyze the effects of plunger motion frequency,system load and different graded constant flows on the lubrication characteristics of slipper pair.The results showed that the sliding shoe pair of valve distribution overturned mainly in the direction of friction torque,and eccentric wear was more likely to occur in the transition period from high pressure zone to low pressure zone and in the low pressure zone;the increase of the plunger movement frequency could reduce the risk of overturning and eccentric wear of the slipper,but it may also reduce the stability of the slipper pair;with the increase of the system load,the oil film thickness decreased,and the overturning angle of the slipper in the high pressure area decreased,while the overturning angle of the slipper in the low pressure area increased;under different grading and constant flow rates,when the number of plungers was greater than 3,the slippers were not easy to overturn when the odd number of plungers were combined,while the slippers were easy to overturn and wear when the even number of plungers were combined,and the pressure change range in the high and low pressure zones increased.

关 键 词：阀配流 压力脉动 轴向柱塞泵 滑靴副 润滑油膜 

分 类 号：V228[航空宇航科学与技术—飞行器设计] TH137.5[机械工程—机械制造及自动化]