大流量阀配流式径向柱塞泵柱塞缸最大许用转速与作用次数研究  

Research on the Maximum Rotating Speed and Acting Time for High Flow-Rate Valve Distribution Piston

作　　者：杨凯恩 于随然[1] YANG Kai-en;YU Sui-ran(School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《机械设计与制造》2022年第5期160-162,166,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金项目—时变大功率输入径向柱塞泵的能耗机理解析及高能效设计(51675344)。

摘　　要：阀配流式径向柱塞泵相比其他类型柱塞泵具有结构简单,工作稳定可靠的特点,然而由于进出口阀的存在,阀口处液体流动受阻,主要工作单元柱塞缸存在自吸性能差的问题,当在特殊应用场合需要大流量化设计时,吸油性能恶化,导致吸油不完全而容积效率骤降。这里以径向柱塞泵中柱塞缸为研究对象,在大流量设计的需求下,综合径向柱塞泵考虑单作用与多作用情形,通过AMEsim对大流量柱塞缸许用转速与作用次数进行仿真实例研究,总结出针对大流量柱塞缸的最大许用转速与作用次数选值方法。该结论为后续阀配流式大流量径向柱塞泵的设计提供设计思路。Radial piston pump with valve distribution has the advantage of simple structure,stability and reliability.However,because of the flow obstruction of the valve,the piston has poor self-priming performance,especially for bigger piston,this problem becomes serious and causes low volumetric efficiency.According to the self-priming issue of the piston,an AMEsim simulation piston model aim for higher flow-rate has been built and examined,and the maximum rotating speed and acting time for large pistons has been tested.The results can provide guides for following design of valve distribution high flow-rate radial piston pump.

关 键 词：阀配流 径向柱塞泵 转速 作用次数 仿真实例 

分 类 号：TH16[机械工程—机械制造及自动化] TH137.51