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宿迁学院 机电工程学院, 江苏 宿迁 223800
刘萍(1980— ),女,江苏常州人,硕士,副教授;主要研究方向为泵理论及微流控技术;liupingsuqian@163.com。
纸质出版日期:2024-06-15,
收稿日期:2023-03-04,
修回日期:2023-04-05,
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刘萍,李玉龙,宋安然.泵/马达困油现象充分缓解的等排量大模数方法[J].机械传动,2024,48(06):83-88.
Liu Ping,Li Yulong,Song Anran.Large Modulus Method to Effectively Relieve Trapped-oil Phenomenon for Gear-pump and Gear-motor with Equal Displacement[J].Journal of Mechanical Transmission,2024,48(06):83-88.
刘萍,李玉龙,宋安然.泵/马达困油现象充分缓解的等排量大模数方法[J].机械传动,2024,48(06):83-88. DOI: 10.16578/j.issn.1004.2539.2024.06.013.
Liu Ping,Li Yulong,Song Anran.Large Modulus Method to Effectively Relieve Trapped-oil Phenomenon for Gear-pump and Gear-motor with Equal Displacement[J].Journal of Mechanical Transmission,2024,48(06):83-88. DOI: 10.16578/j.issn.1004.2539.2024.06.013.
为了充分缓解外啮合齿轮泵/马达困油现象,在确保产品输出能力不变的等排量前提下,分析模数对困油腔内的负荷流量、泄漏流量和卸荷流量的影响,提出了一种等排量大模数的设计方法,并基于这3种流量的瞬时平衡和同齿形参数、不同模数下卸荷面积的演绎计算,计算出困油压力并由此判断出困油现象的缓解程度。结果表明,对于给定的齿轮副和工况条件,等排量下的齿宽系数反比例于模数的3次方,模数越大,困油现象越趋于缓解,且径向力越小,但齿宽系数越小;同齿形参数、不同模数下的卸荷面积等于模数的平方乘基准模数为1下的卸荷面积,从而为同齿形参数、不同模数下的卸荷面积计算,提供了极大方便;卸荷槽外通的进出口压力互为颠倒,导致泵较马达的困油现象更严重,但等排量小模数马达同样也会出现较为严重的困油现象。得出了选择最大化/较大的模数应为泵/马达的设计准则的重要结论。
In order to effectively relieve the trapped-oil phenomenon of external gear-pumps and gear-motors
based on its constant output capacity
by analyzing the influence of large modulus under equal displacement on the load flow
leakage flow and unloading flow in trapped-oil chamber
a design method of large modulus with equal displacement is proposed. Based on the instantaneous balance of these three flows
and the deductive calculation of the unloading area under different modules with the same tooth profile parameters
the trapped-oil pressure is calculated and the relief degree of the trapped-oil phenomenon is judged. The results show that the tooth width coefficient under equal displacement is inversely proportional to the third power of the modulus for a given gear-pairs and working conditions
the larger the modulus is
the more the trapped-oil phenomenon tends to be relieved
and the smaller the radial force is
the smaller the tooth width coefficient will be. The unloading area under different modules and the same tooth shape parameter is equal to the module square multiplied by the unloading area under the reference module of 1
which provides great convenience for calculating the unloading area under different modules with the same tooth profile parameters.The inlet and outlet pressures outside the unloading groove are reversed
leading to a more serious trapped-oil phenomenon in the gear-pump than in the gear-motor
but the small modulus motor also shows more serious trapped-oil phenomenon. It is concluded that the maximized or larger modules is included in the gear-pump and gear-motor design criteria.
齿轮泵/马达困油现象缓解等排量大模数齿宽系数困油压力
Gear-pump and gear-motorRelief of trapped-oil phenomenonLarge modulus with equal displacementTooth width coefficientTrapped-oil pressure
夏云才,郝海滨,毛银.齿轮泵无困油摆线齿廓的逆向设计与低脉动措施[J].机械传动,2022,46(4):143-147.
XIA Yuncai,HAO Haibin,MAO Yin.Reverse design of cycloid tooth profile without trapped oil and implementation measures of low flow ripple for gear pump[J].Journal of Mechanical Transmission,2022,46(4):143-147.
王郝,宋安然,李玉龙.齿轮泵与齿轮马达的脉动差异性及其轻量化设计[J].机械传动,2023,47(1):77-81.
WANG Hao,SONG Anran,LI Yulong.Output ripple difference and following lightweight design of external gear pumps and motors[J].Journal of Mechanical Transmission,2023,47(1):77-81.
鄢圣杰,王如意.困油对齿轮马达输出特性的影响与分析[J].机械传动,2022,46(2):114-118,134.
YAN Shengjie,WANG Ruyi.Influence and analysis of trapped-oil on output characteristic of gear motor[J].Journal of Mechanical Transmission,2022,46(2):114-118,134.
杨国来,王文宇,白京浩,等.不同卸荷槽影响下外啮合齿轮泵空化特性[J].制造技术与机床,2020(9):106-111.
YNAG Guolai,WANG Wenyu,BAI Jinghao,et al.Cavitation characteristics of external gear pump under the influence of different relief grooves [J].Manufacturing Technology & Machine Tool,2020(9):106-111.
王郝,宋安然,李玉龙.无另置困油缓冲槽的轴向两段式齿轮泵[J].机械传动,2023,47(2):164-168.
WANG Hao,SONG Anran,LI Yulong.An external gear pump with axial stepped-gear structure and without additional trapped-oil relief-grooves[J].Journal of Mechanical Transmission,2023,47(2):164-168.
董庆伟,刘理想,李阁强.双圆弧斜齿齿轮泵泄漏研究及最佳间隙设计[J].流体机械,2022,50(3):60-65,87.
DONG Qingwei,LIU Lixiang,LI Geqiang.Research on leakage of double-circular-arc helical gear pump and design of optimum clearance[J].Fluid Machinery,2022,50(3):60-65,87.
彭锐,王建锋,孙自文.齿轮马达的困油输出转矩转速及其脉动最小化策略[J].机械传动,2021,45(11):51-56.
PENG Rui,WANG Jianfeng,SUN Ziwen.Output torque and speed influence by trapped-oil of gear motor and its ripple minimization strategy[J].Journal of Mechanical Transmission,2021,45(11):51-56.
李玉龙,范钧,刘萍,等.航天超低黏度齿轮微泵的困油性能与卸荷措施[J].流体机械,2020,48(12):49-52.
LI Yulong,FAN Jun,LIU Ping,et al.Entrap performance and relief measures of space micro gear pump with ultralow viscosity working medium[J].Fluid Machinery,2020,48(12):49-52.
刘萍.空天用泵轻量化的齿廓逆向设计方法及高形技术[J].流体机械,2020,48(7):33-37.
LIU Ping.Reverse design method of involute profile and further higher shape technology for lightweight gear pumps equipped in spacecraft[J].Fluid Machinery,2020,48(7):33-37.
杨晓俊,朱兴龙.泵用无困油无根切齿廓及其轴向超低恒脉动结构[J].机床与液压,2022,50(18):79-83.
YANG Xiaojun,ZHU Xinglong.Tooth profile without trapped-oil and undercut for pump and its axis ultra-low and constant flow ripple structure[J].Machine Tool & Hydraulics,2022,50(18):79-83.
李玉龙,孙付春,姚旗,等.航天器用超低黏度齿轮泵轻量化设计[J].农业工程学报,2016,32(21):109-114.
LI Yulong,SUN Fuchun,YAO Qi,et al.Lightweight design of gear pumps with ultra-low viscosity medium used in spacecraft[J].Transactions of the Chinese Society of Agricultural Engineering,2016,32(21):109-114.
文昌明,李玉龙,钟飞.基于气穴性能的齿轮泵轻量化设计[J].流体机械,2018,46(6):39-41,82.
WEN Changming,LI Yulong,ZHONG Fei.Lightweight design of gear pump based on better cavitation performance[J].Fluid Machinery,2018,46(6):39-41,82.
何存兴.液压元件[M].北京:机械工业出版社,1985:41,58,83,84.
HE Cunxing.Hydraulic components[M].Beijing:China Machine Press,1985:41,58,83,84.
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,2009:90-91,96-97.
LI Yulong.Mechanism,modelling and experimental investigation of trapped-oil in external gear pump[D].Hefei:Hefei University of Technology,2009:90-91,96-97.
孙付春,李玉龙,袁影,等.基于高困油性能的齿轮泵多目标优化设计[J].机械传动,2018,42(8):80-84.
SUN Fuchun,LI Yulong,YUAN Ying,et al.Multi-objective optimization design of gear pump with high trapped-oil performance[J].Journal of Mechanical Transmission,2018,42(8):80-84.
孙付春,李玉龙,钟飞.齿轮泵困油径向力的研究与量化分析[J].中国农业大学学报,2018,23(12):131-137.
SUN Fuchun,LI Yulong,ZHONG Fei.Research and quantitative analysis of radial force impacted by trapped-oil pressure in external gear pumps[J].Journal of China Agricultural University,2018,23(12):131-137.
李玉龙,刘雄,姚旗,等.航天器用超低黏度齿轮泵关键参数研究[J].润滑与密封,2016,41(6):88-92.
LI Yulong,LIU Xiong,YAO Qi,et al.Research on key design parameters of external gear pump with lower viscosity medium used in spacecraft[J].Lubrication Engineering,2016,41(6):88-92.
何渊博,梁银川,张小卫.齿轮泵进口流道设计对汽蚀性能的影响[J].燃气涡轮试验与研究,2014,27(4):39-41.
HE Yuanbo,LIANG Yinchuan,ZHANG Xiaowei.Inlet flow channel design impact on cavitation performance of gear pump[J].Gas Turbine Experiment and Research,2014,27(4):39-41.
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].Proceedings of the Institution of Mechanical Engineers Part I—Journal of Systems and Control Engineering,2006,220(5):365-379.
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