| 油液粘度变化对球塞泵球塞副泄漏量的影响 |
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| 引用本文： | 苑士华,张心俊,胡纪滨.油液粘度变化对球塞泵球塞副泄漏量的影响[J].农业机械学报,2007,38(4):135-137. |
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| 作者姓名： | 苑士华 张心俊 胡纪滨 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,100081,北京市 |
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| 摘 要： | 推导了变粘度条件下球活塞与缸筒偏心时，球活塞式液压泵球塞副泄漏量的计算公式，并将此结果与假定油液粘度为常数时的结果进行了对比，得出了球塞副的泄漏流量不仅与球活塞与旋转缸体缸筒间隙、工作油液的压力以及缸体转速有关，而且还与油液的粘温系数、粘压系数、密度和比热容等有关的结论，分析了上述各因素对球塞副泄漏量的影响。为设计高效球活塞式液压泵提供了理论依据，同时为高功率密度球活塞式液压元件的深入研究打下了基础。
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| 关 键 词： | 球活塞式液压泵 变粘度 球塞副 泄漏量 |
| 修稿时间： | 2005-10-31 |
Influence of Varying Oil Viscosity on Leakage of Ball Piston Pump's Ball Piston Pair |
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| Yuan Shihua,Zhang Xinjun,Hu Jibin.Influence of Varying Oil Viscosity on Leakage of Ball Piston Pump''''s Ball Piston Pair[J].Transactions of the Chinese Society of Agricultural Machinery,2007,38(4):135-137. |
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| Authors: | Yuan Shihua Zhang Xinjun Hu Jibin |
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| Institution: | Beijing Institute of Technology |
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| Abstract: | The formula of ball piston pair's leakage in ball piston pump was gained under the condition of variable viscosity when ball piston was eccentric with cylinder block. The result has been compared with the one that got under the condition of supposing oil viscosity be constant. The conclusion was educed, with which the leakage of ball piston pair depended not only on clearance between ball piston and rotary cylinder block, pressure of working oil and speed of cylinder block, but also on the viscosity-temperature coefficient, viscosity-pressure coefficient, density and specific heat capacity of working oil. The influence of those factors on leakage of ball piston pair has been analyzed. |
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| Keywords: | Ball piston pump Variable viscosity Ball piston pair Leakage |
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