摘要
平衡式两排轴向柱塞泵的结构特点,决定了其流量脉动不同于普通轴向柱塞泵。分析了内外柱塞数同为奇数或偶数的平衡式两排轴向柱塞泵的流量脉动情况,采用不同参数,利用Matlab绘制其瞬时流量曲线进行比较。结果表明:内外排柱塞数同为不相等的奇数或偶数时,内外排瞬时流量存在抵消使流量脉动减小。内外排柱塞数为相同的奇数或偶数时,内外排瞬时流量互相叠加使流量脉动保持不变。内外排柱塞数相等且交叉布置时,其流量脉动具有最大的减小量,脉动周期为普通轴向柱塞泵的一半,有利于泵结构的紧凑。
The balanced two-ring axial piston pump has a different characteristic of flow ripple because of its improved structure. The flow rippleis analyzed when the numbers of the piston inside and outside are even or odd. And its instantaneous flow’s curves are drawn by Matlab, based on the different parameters. The results show that when the numbers of the piston inside and outside are unequal even or unequal odd, the instantaneous flow inside and outside will counteract, and the flow ripple will reduce. When the numbers of the piston inside and outside are equal even or equal odd, the instantaneous flow inside and outside will overlap, and the flow ripple will remain unchanged. When the numbers of the piston inside and outside are equal and the piston inside and outside are arranged in cross, the pump has the minimum flow ripple, the ripple period is half of that of ordinary axial piston pump, and the pump’s structure is more compact.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2014年第5期305-309,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(51205002
51075001)
安徽省自然科学基金重点项目(KJ2011A076)
关键词
平衡式
双排轴向柱塞泵
流量脉动
瞬时流量
Balanced
Two-ring axial piston pump
Flow ripple
Instantaneous flow
作者简介
邓海顺，博士后，副教授，主要从事液压传动与控制研究，E—mail：hsdeng@aust．edu．cn
通讯作者：王传礼，教授，博士生导师，主要从事液压传动与控制研究，E-mail：chlwang@aust．edu．cn
