排灌机械工程学报
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排灌机械工程学报  2012, Vol. 30 Issue (2): 147-152    DOI: 10.3969/j.issn.1674-8530.2012.02.005
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中高压外啮合齿轮泵端面间隙的理论计算
 李玉龙, 孙付春
(成都大学工业制造学院, 四川 成都 610106)
Theoretical calculation of axial clearance in medium or high pressure external gear pumps
 LI  Yu-Long, SUN  Fu-Chun
(Industrial Manufacturing College, Chengdu University, Chengdu, Sichuan 610106, China)
 全文: PDF (1741 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 在浮动轴套(侧板)受力分析的基础上,通过其内侧油膜挤压力、困油力、工作油压力和其外侧补偿力等的计算,构建出浮动轴套(侧板)轴向的动力学模型.利用龙格-库塔法在一个啮合周期内的迭代运算,获得端面间隙的动态仿真结果,并就压紧力系数、工作油压的不同分布和困油压力对端面间隙的影响进行分析.结果表明:案例工况参数下的端面间隙值一般在013 mm左右,与实际情况比较吻合;同一压紧系数下浮动侧板内侧因工作油压的不同分布所引起的总油压力越大,端面间隙则越小;在其他条件不变的情况下,压紧系数越大,端面间隙越小;油压的不同分布、压紧系数的大小对端面间隙具有明显的影响,而困油压力的影响较小;总体而言,中、高压外啮合齿轮泵的端面间隙实际上波动较小,可采用动态端面间隙的均值以简化后续计算.
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李玉龙
孙付春
关键词齿轮泵   端面间隙   浮动轴套   轴向振动   困油压力     
Abstract: The study on theoretically estimating variable axial clearance in a medium or high pressure external gear pump is rare yet, thus a dynamics model for determining such a clearance was established in the paper based on an analysis on forced acted on a floating axial sleeve (side plate), which consisted of the pressure in squeezed film, the outside compensated forces on the sleeve, the pressure in trapped oil and the working oil pressure. Then variable axial clearances were iteratively estimated from the model in a meshing cycle by using the Runge-Kutta method. Subsequently, an analysis on the influence of compression ratio, different distributions of working oil pressure and trapped oil pressure on the clearance value was conducted. The results show that the axial clearance is about 0.13 mm in all the cases, and it is consistent with the actual value. The greater the total force of oil pressure due to the different distributions of operating oil pressure at the same compression ratio, the smaller the axial clearance. As the other conditions remain unchanged, the higher the compression ratio, the smaller the axial clearance. Moreover the operating oil pressure and compression ratio have a significant impact on the clearance, but the trapped oil pressure just has slight effect on it. Generally, in a medium or high pressure external gear pump the axial clearance really shows less variable, so that the mean value of the variable clearances can be applied in design to simplify subsequent calculations.
Key wordsexternal gear pumps   axial clearance   floating axial sleeve   axial vibration   
收稿日期: 2011-10-16; 出版日期: 2012-03-30
基金资助:

 安徽省自然科学基金资助项目(2004KJ317);成都大学人才引进基金资助项目(20804)

通讯作者: 李玉龙(1968—),男,江苏泰兴人,教授(leoworld@163.com),主要从事齿轮泵理论及现代设计方法研究.   
作者简介: 孙付春(1981—),男,江苏东台人,讲师(fch.sun@163.com),主要从事机械设计方法及理论和核技术应用研究.
引用本文:   
李玉龙,孙付春. 中高压外啮合齿轮泵端面间隙的理论计算[J]. 排灌机械工程学报, 2012, 30(2): 147-152.
LI Yu-Long,SUN Fu-Chun. Theoretical calculation of axial clearance in medium or high pressure external gear pumps[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(2): 147-152.
 
[1] 参考文献(References)
[2] 李玉龙.外啮合齿轮泵困油机理、模型及试验研究 [D].合肥:合肥工业大学机械与汽车工程学院, 2009.
[3] Jing Baode,Yang Lijuan,Lu Shuang. The research of contaminant abrasion on external gear pumps [C]//Proceedings of the Control and Decision Conference. Shenyang: Northeastern University Press, 2009: 3090-3093.
[4] Houzeaux G,Codina R.A finite element method for the solution of rotary pumps[J].Computers & Fluids, 2007,36(4):667-679.
[5] 黄健,刘振侠,张丽芬,等.端面间隙对齿轮泵性能影响的数值模拟研究[J].机床与液压, 2011,39(13):36-38.
Huang Jian,Liu Zhenxia,Zhang Lifen,et al. Numerical investigation of the influence of end clearance on the performance of gear pump[J].Machine Tool & Hydraulics, 2011,39(13):36-38.(in Chinese)
[6] 宫柏秋.齿轮泵参数化设计方法研究与系统实现[D].哈尔滨:哈尔滨工业大学机电工程学院,2008.
[7] 王海兰,邵汉强.齿轮泵轴向间隙泄漏与补偿研究[J].军事交通学院学报,2005,7(4):31-33.
Wang Hailan,Shao Hanqiang.Study of axial clearance leakage and compensation of gear pumps [J].Journal of Academy of Military Transportation,2005,7(4):31-33.(in Chinese)
[8] 杨杰.高压齿轮泵轴套轴向浮动性的研究[J].液压与气动,2010 (2):8-10.
[9] Yang Jie.Research of bearings axial floatability for high pressure gear pump[J].Chinese Hydraulics & Pneumatics,2010 (2):8-10.(in Chinese)
[10] Casoli P, Vacca A, Berta G L, et al. A CFD analysis of the flow field in the lateral clearance of external gear pumps[C]∥Proceedings of the 11th Scandinavian International Conference on Fluid Power.Linkoping: Linkoping University Press, 2009:786-794.
[11] Morgridge D, Evans H P, Snidle R W, et al. A study of seal lubrication in an aerospace fuel gear pump including the effects of roughness and mixed lubrication [J]. Tribology Transactions, 2011, 54(4):657-665.
[12] Eaton M, Keogh P S, Edge K A. The modeling, prediction and experimental evaluation of gear pump meshing pressures with particular reference to aeroengine fuel pumps [J]. Journal of Systems and Control Engineering, 2008,220 (5):365-379.
[13] 温诗铸,黄平.摩擦学原理[M].北京:清华大学出版社,2008.
[14] 李玉龙,许泽银,徐强.齿轮泵补偿面设计的参数化研究[J].农业机械学报,2005,36(8):70-74.
Li Yulong, Xu Zeyin, Xu Qiang.Parameter design of balance area for external gear pump[J].Transactions of the Chinese Society for Agricultural Machinery,2005,36(8):70-74.(in Chinese)
[15] 杨元模,刘朝晖.外啮合齿轮泵抽空现象探究及解决方法[J].液压与气动,2006(12):81-83.
[16] Yang Yuanmo,Liu Chaohui.Probe and solution to empty pumping in outerengaged gear pump[J].Chinese Hydraulics & Pneumatics,2006(12):81-83.(in Chinese)
[17] 李玉龙,孙付春.基于离心作用的齿轮泵容积效率和困油现象分析[J].农业工程学报,2011,27(3):147-151.
Li Yulong,Sun Fuchun.Theoretical analysis of volumetric efficiency and phenomenon of trapped oil under centrifugation in external spurgear pump [J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(3):147-151.(in Chinese)
[18] 李玉龙,孙付春.齿轮泵困油的分析模型及侧隙计算 [J].排灌机械工程学报,2011,29(2):118-122.
Li Yulong,Sun Fuchun.Analysis model on trapped oil and backlash calculation in external gear pump[J].Journal of Drainage and Irrigation Machinery Engineering,2011,29(2):118-122.(in Chinese)
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