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大侧隙外啮合齿轮泵的困油特性和流量特性

李玉龙 刘春艳 王生

李玉龙, 刘春艳, 王生. 大侧隙外啮合齿轮泵的困油特性和流量特性[J]. 机械科学与技术, 2015, 34(3): 454-458. doi: 10.13433/j.cnki.1003-8728.2015.0326
引用本文: 李玉龙, 刘春艳, 王生. 大侧隙外啮合齿轮泵的困油特性和流量特性[J]. 机械科学与技术, 2015, 34(3): 454-458. doi: 10.13433/j.cnki.1003-8728.2015.0326
Li Yulong, Liu Chunyan, Wang Sheng. The Trapped Oil Characteristics and Flow Characteristics with Large Backlash Gap in External Gear Pumps[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(3): 454-458. doi: 10.13433/j.cnki.1003-8728.2015.0326
Citation: Li Yulong, Liu Chunyan, Wang Sheng. The Trapped Oil Characteristics and Flow Characteristics with Large Backlash Gap in External Gear Pumps[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(3): 454-458. doi: 10.13433/j.cnki.1003-8728.2015.0326

大侧隙外啮合齿轮泵的困油特性和流量特性

doi: 10.13433/j.cnki.1003-8728.2015.0326
基金项目: 

成都大学人才引进项目(20804)资助

详细信息
    作者简介:

    李玉龙(1968-),教授,博士,研究方向为齿轮泵理论及现代设计方法,leo-world@163.com

The Trapped Oil Characteristics and Flow Characteristics with Large Backlash Gap in External Gear Pumps

  • 摘要: 以对称双矩形卸荷槽为例,基于泵排油区域封闭容积变化的精确计算和困油压力的仿真结果,给出了理想状态和实际状态下瞬时流量的计算公式,并就流量品质进行分析。结果表明:理想状态下,卸荷槽能有效改善泵的流量品质,平均流量提高了1.6%;流量不均匀系数降低了65.3%;实际状态下,卸荷槽同样能有效改善泵的流量品质,不过改善效果将有所下降;大侧隙时两困油区互为一体仅为一种粗略的近似;单齿啮合区间也会发生明显的困油现象等。得出困油现象仅限于双齿啮合的传统定义应予以修正,以及在流量计算中考虑困油压力很有必要的结论。
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出版历程
  • 收稿日期:  2013-07-15
  • 刊出日期:  2015-03-05

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