华南理工大学学报(自然科学版)
華南理工大學學報(自然科學版)
화남리공대학학보(자연과학판)
JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
7期
74-79
,共6页
轴向柱塞泵%滑靴副%间隙泄漏%摩擦转矩
軸嚮柱塞泵%滑靴副%間隙洩漏%摩抆轉矩
축향주새빙%활화부%간극설루%마찰전구
axial piston pump%slipper pair%clearance leakage%friction torque
探讨了在不同柱塞腔压力、缸体转速和滑靴重心与球窝中心所组成的离心力臂作用下滑靴副间隙泄漏以及摩擦转矩的变化过程。结果表明:柱塞腔压力、缸体转速以及滑靴的离心力臂与其所受的正向压紧力、动压效应以及离心力矩密切相关,它们是影响滑靴副泄漏流量的重要参数;滑靴的摩擦力矩随泄漏流量的增大而增大。液压泵的实际泄漏流量和摩擦转矩损失随柱塞腔压力和缸体转速增大而增大,由于考虑配流副和柱塞副的泄漏与摩擦转矩损失,其实际测试结果较大;滑靴在泵的容积效率和机械效率损失方面所占的比重较小。
探討瞭在不同柱塞腔壓力、缸體轉速和滑靴重心與毬窩中心所組成的離心力臂作用下滑靴副間隙洩漏以及摩抆轉矩的變化過程。結果錶明:柱塞腔壓力、缸體轉速以及滑靴的離心力臂與其所受的正嚮壓緊力、動壓效應以及離心力矩密切相關,它們是影響滑靴副洩漏流量的重要參數;滑靴的摩抆力矩隨洩漏流量的增大而增大。液壓泵的實際洩漏流量和摩抆轉矩損失隨柱塞腔壓力和缸體轉速增大而增大,由于攷慮配流副和柱塞副的洩漏與摩抆轉矩損失,其實際測試結果較大;滑靴在泵的容積效率和機械效率損失方麵所佔的比重較小。
탐토료재불동주새강압력、항체전속화활화중심여구와중심소조성적리심역비작용하활화부간극설루이급마찰전구적변화과정。결과표명:주새강압력、항체전속이급활화적리심역비여기소수적정향압긴력、동압효응이급리심력구밀절상관,타문시영향활화부설루류량적중요삼수;활화적마찰력구수설루류량적증대이증대。액압빙적실제설루류량화마찰전구손실수주새강압력화항체전속증대이증대,유우고필배류부화주새부적설루여마찰전구손실,기실제측시결과교대;활화재빙적용적효솔화궤계효솔손실방면소점적비중교소。
This paper discusses the clearance leakage and friction torque changes of slipper pair in axial piston pump with different cylinder speeds , different cylinder pressures and different centrifugal force arm sizes .The re-sults show that (1) the cylinder speed, the cylinder pressure and the centrifugal force arm size are important pa-rameters affecting the clearance leakage of slipper pair which are related to pressing force , dynamic-pressure effect and centrifugal moment of slipper;(2) the friction torque increases with the increase of clearance leakage;(3) the actual clearance leakage and friction torque loss of piston pump increase as cylinder pressure and speed increase , and they are greater than their theoretical value due to the effects of piston pair and valve plate pair ;and (4) the clearance leakage and friction torque loss of slipper have smaller effect on the volumetric efficiency and mechanical efficiency of axial piston pump .