轴承预紧力作用下的行星齿轮动态载荷研究
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摘要
为分析轴承预紧量对高速重载行星齿轮传动系统接触性能影响,建立高速重载行星齿轮传动动力学模型,考虑轴承预紧量因素,分析行星销轴承预紧量对系统支撑刚度、齿面啮合性能、系统均载影响。结果表明:行星销轴承预紧量影响行星销支撑刚度、齿面啮合性能、动态均载,从负游隙到正游隙系统支撑刚度减小,齿轮副的啮合载荷最大值减小,系统的均载系数减小。研究结果可为优化高速重载行星齿轮传动的轴承预紧量提供支撑。
In order to analyze the influence of bearing preload on the contact performance of high-speed heavy-duty planetary gear transmission system,the dynamic model of high-speed heavy-duty planetary gear transmission is established. Considering the pre-tightening factor of the bearing,the pre-tightening amount of the planetary pin bearing is analyzed. Tooth surface meshing performance,system load impact. The results show that the preload of the planetary pin bearing affects the planetary pin support stiffness,tooth surface meshing performance and dynamic load sharing. The support stiffness from the negative clearance to the positive clearance system is reduced,and the maximum meshing load of the gear pair is reduced. The average load factor is reduced. The results of the study provide support for optimizing the bearing preload of high-speed heavyduty planetary gear drives.
In order to analyze the influence of bearing preload on the contact performance of high-speed heavy-duty planetary gear transmission system,the dynamic model of high-speed heavy-duty planetary gear transmission is established. Considering the pre-tightening factor of the bearing,the pre-tightening amount of the planetary pin bearing is analyzed. Tooth surface meshing performance,system load impact. The results show that the preload of the planetary pin bearing affects the planetary pin support stiffness,tooth surface meshing performance and dynamic load sharing. The support stiffness from the negative clearance to the positive clearance system is reduced,and the maximum meshing load of the gear pair is reduced. The average load factor is reduced. The results of the study provide support for optimizing the bearing preload of high-speed heavyduty planetary gear drives.
引文
[1]邱星辉,韩勤锴,朱福磊.风力机行星齿轮传动系统动力学研究综述[J].机械工程学报,2014,50(11):23-36.
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[8]朱增宝,江志祥,尹敏.支撑刚度对行星传动系统动态均载特性的影响[J].航空动力学报,2016,31(4):986-992.
[9]GUO Y,R G PARKER.Dynamic analysis of planetary gears with bearing clearance[J].Journal of Computational and Nonlinear Dynamics,2012,7:041002-1-15.
[10]KIM W,JI YL,CHUNG J.Dynamic analysis for a planetary gear with time-varying pressure angles and contact ratios[J].Journal of Sound and Vibration,2012,311:833-901.
[11]黄伟迪,甘春标,杨世锡,等.高速电主轴角接触球轴承刚度及其对电主轴临界转速的影响分析[J].振动与冲击,2017,36(10):19-25.
[12]潘磊.单输入齿轮分流传动系统的均载特性分析及试验研究[D].南京:南京航空航天大学,2015.
[2]朱增宝.封闭差动人字齿轮传动系统均载及动力学特性分析研究[D].南京:南京航空航天大学,2013.
[3]徐向阳,杨望,刁鹏,等.多构件浮动重载行星齿轮系统动态均载研究[J].机械传动2016,40(12):6-11.
[4]邓四二,王燕霜,李新宁.轴承预紧力与系统固有频率关系的试验[J].航空动力学报,2010,25(8):1883-1887.
[5]尚珍,刘忠明,王长明.双浮动行星齿轮传动非线性动力学均载及浮动量分析[J].机械科学与技术,2011,30(4):683-688.
[6]方兵,张雷,曲兴田,等.角接触球轴承刚度理论计算与实验[J].吉林大学学报(工学版),2012,42(4):840-844.
[7]宁峰平,姚建涛,安静涛,等.考虑摩擦特性时过盈量对轴承预紧力的影响[J].农业工程学报,2015,31(14):96-101.
[8]朱增宝,江志祥,尹敏.支撑刚度对行星传动系统动态均载特性的影响[J].航空动力学报,2016,31(4):986-992.
[9]GUO Y,R G PARKER.Dynamic analysis of planetary gears with bearing clearance[J].Journal of Computational and Nonlinear Dynamics,2012,7:041002-1-15.
[10]KIM W,JI YL,CHUNG J.Dynamic analysis for a planetary gear with time-varying pressure angles and contact ratios[J].Journal of Sound and Vibration,2012,311:833-901.
[11]黄伟迪,甘春标,杨世锡,等.高速电主轴角接触球轴承刚度及其对电主轴临界转速的影响分析[J].振动与冲击,2017,36(10):19-25.
[12]潘磊.单输入齿轮分流传动系统的均载特性分析及试验研究[D].南京:南京航空航天大学,2015.