进口压力对正开口配流盘轴向柱塞变量泵斜盘力矩的影响  

Influences of inlet pressure of axial variable piston pump with cross porting disk on its swash plate moment

作　　者：王建森[1] 李培勇 陈波 李理 于昕海 WANG Jian-sen;LI Pei-yong;CHEN Bo;LI Li;YU Xin-hai(College of Energy and Power Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China;CSIC Chongqing Intelligent Equipment Engineering Co.Ltd.,Chongqing 400120,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050 [2]中船重工重庆智能装备工程设计有限公司,重庆400120

出　　处：《兰州理工大学学报》2020年第1期44-47,共4页Journal of Lanzhou University of Technology

基　　金：甘肃省科技计划资助(17JR5RA120)

摘　　要：以某型具有正开口配流盘结构的闭式斜盘轴向柱塞变量泵为例,建立了单柱塞腔可压缩配流模型和斜盘力矩计算公式,得出配流盘吸排油过流断面面积变化曲线和单柱塞腔预升压、预卸压曲线,研究了不同进口压力下斜盘力矩的变化规律.结果发现随着泵进口压力的增大,斜盘绕三个坐标轴上所受力矩平均值均有不同程度的减小,其中变量力矩脉动幅值明显减小,适当增大入口压力有利于减小泵的变量力矩和减弱斜盘的机械振动.Taking axial variable piston pump with close-type swash plate and a mechanism of cross porting valve plate as example,a compressible flow distribution model of single displacement chamber and computation formula of swash plate moment are established,the variation curves of the area of flow passage section of oil suction and discharge of the valve plate and the precompression and preexpansion curve of single displacement chamber are found,and the variation regularity of swash plate moment is studied under different inlet pressure.It is found out by its result that with increase of inlet pressure,the average value of the component of moment of swash plate on three coordinate axes will decrease to some extent,where the ripple amplitude of the variable moment will decreases obviously.Therefore,properly increasing inlet pressure will be of advantage for decreasing variable moment of pump and weakening the mechanical vibration of swash plate.

关 键 词：轴向柱塞变量泵 正开口配流盘 斜盘力矩 入口压力 

分 类 号：TH137.5[机械工程—机械制造及自动化]