液压轴向柱塞泵空载排量的测定方法研究  

Investigateon the Determination Method of the No-Load Displacement of Hydraulic Axial Piston Pump

作　　者：王洋定 李亦鸣 郑智剑 钱咪 贺梁 WANG Yangding;LI Yiming;ZHENG Zhijian;QIAN Mi;HE Liang(Ningbo Academy of Product&Food Quality Inspection(Ningbo Fiber Inspection Institute),Ningbo Zhejiang 315048,China;Department of Mechanical and Mechatronic Engineering,National Taiwan Ocean University,Keelung Taiwan 202907,China;National Intelligent Manufacturing Equipment Quality Supervision&Inspection Center(Zhejiang),Ningbo Zhejiang 315800,China)

机构地区：[1]宁波市产品食品质量检验研究院(宁波市纤维检验所),浙江宁波315048 [2]中国台湾海洋大学机械与机电工程系,中国台湾基隆202907 [3]国家智能制造装备产品质量监督检验中心(浙江),浙江宁波315800

出　　处：《机床与液压》2023年第2期64-68,共5页Machine Tool & Hydraulics

基　　金：浙江省市场监管局科研计划项目(ZC2021B057)。

摘　　要：采用具有A级测试精度的液压泵综合性能试验台,按液压轴向柱塞泵的型式试验要求,分别测试在不同进出口压差、转速下泵的出口流量。基于测试数据,分别采用零压力截取法、一步TOET法和两步TOET法计算泵的空载排量,并进行对比分析。结果表明:采用零压力截取法计算得到的泵的空载排量受转速的影响较大,特别是在低速测试工况下,与泵的公称排量存在较大差异;而采用TOET法计算得到泵的空载排量更接近其公称排量。超过被测泵额定压力或额定转速下测得的数据可能会导致较大的数据偏差。The comprehensive performance test bench of hydraulic pump with the test accuracy of class A was used to test the volume flow rate of hydraulic axial piston pump at different pressure difference and shaft speeds according to the type test requirements.Based on the test data, the no-load displacements of the pump were calculated and compared by using the zero-pressure intercept method, one-step TOET method and two-step TOET method, respectively.The results show that: the no-load displacements calculated by using the zero-pressure intercept method are significantly affected by the shaft speeds, especially at the low shaft speeds, there are great differences between the no-load displacement and the nominal displacement;the no-load displacements calculated by adopting the TOET method are more closely to the nominal displacement by comparing with the zero-pressure intercept method.The test data obtained from the conditions that exceeding the rated pressure or speed may lead to large deviation.

关 键 词：空载排量 柱塞泵 零压力截取法 一步TOET法 两步TOET法 

分 类 号：TH322[机械工程—机械制造及自动化]