基于ANSYS热分析的三环减速器行星轴承刚度计算
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摘要
三环减速器是一种少齿差行星传动装置,其发热严重极易造成行星轴承烧毁甚至提前破坏。通过在UG中建立三环减速器的三维模型,将其导入ANSYS中,并考虑外载荷摩擦以及润滑油粘着摩擦对轴承温度场的影响,求出三环减速器输入轴行星轴承外载荷,根据赫兹理论得到施加温度场后输入轴行星轴承的刚度。结果表明考虑温度影响后,行星轴承刚度将会减小,造成行星轴承承载能力下降,为三环减速器散热系统的合理设计提供一定的理论依据。
Three ring gear reducer is a kind of planetary transmission with small tooth number difference,the serious heat easily cause burnout of the planetary bearing or even failure. Three-dimensional model is established in UG and imported into ANSYS. while the effect of friction of External load and lubricant on the temperature field of bearing is considered,the input shaft planetary bearing load is obtained. The input shaft bearing stiffness after heating is calculated according to HERZ theory. Results show that the input shaft bearing stiffness after heating is lower and the carrying capacity will decline,it can provide certain theoretical basis for the reasonable design of heat dissipating system.
Three ring gear reducer is a kind of planetary transmission with small tooth number difference,the serious heat easily cause burnout of the planetary bearing or even failure. Three-dimensional model is established in UG and imported into ANSYS. while the effect of friction of External load and lubricant on the temperature field of bearing is considered,the input shaft planetary bearing load is obtained. The input shaft bearing stiffness after heating is calculated according to HERZ theory. Results show that the input shaft bearing stiffness after heating is lower and the carrying capacity will decline,it can provide certain theoretical basis for the reasonable design of heat dissipating system.
引文
[1]杨建明.三环传动弹性动力学的理论与实验研究[D].天津:天津大学博士论文,2001.
[2]朱才朝,秦大同,冉振亚,等.环式减速器发热问题分析[J].重庆大学学报:自然科学版.2001,24(2):5-8.
[3]T.A.Harris,M.N.Kotzalas,罗继伟,马伟,等.滚动轴承分析(原书第5版):第1卷,轴承技术的基本概念[M].北京:机械工业出版社,2010:184-189.
[4]T.A.Harris,M.N.Kotzalas,罗继伟,马伟,等.滚动轴承分析(原书第5版):第2卷,轴承技术的高等概念[M].北京:机械工业出版社,2010:156-162.
[5]龙慧.旋转齿轮瞬时接触应力和温度的分析模拟[J].机械工程学报,2004,40(8):24-29.
[6]赵宁.双圆弧齿轮传动系统失油润滑瞬态热分析[J].计算机仿真,2008,25(7):77-81.
[2]朱才朝,秦大同,冉振亚,等.环式减速器发热问题分析[J].重庆大学学报:自然科学版.2001,24(2):5-8.
[3]T.A.Harris,M.N.Kotzalas,罗继伟,马伟,等.滚动轴承分析(原书第5版):第1卷,轴承技术的基本概念[M].北京:机械工业出版社,2010:184-189.
[4]T.A.Harris,M.N.Kotzalas,罗继伟,马伟,等.滚动轴承分析(原书第5版):第2卷,轴承技术的高等概念[M].北京:机械工业出版社,2010:156-162.
[5]龙慧.旋转齿轮瞬时接触应力和温度的分析模拟[J].机械工程学报,2004,40(8):24-29.
[6]赵宁.双圆弧齿轮传动系统失油润滑瞬态热分析[J].计算机仿真,2008,25(7):77-81.