摘要
为深入分析圆锥过盈配合连接性能,以某柴油机曲轴减振器圆锥过盈配合连接为例,建立圆锥过盈配合理论模型,推导出圆锥过盈配合的结合直径表达式,得出圆锥过盈配合扭矩传递与接触压力计算公式。利用ANSYS软件模拟曲轴和主轮毂的过盈配合,针对不同过盈量、摩擦因数和转速,分析曲轴和主轮毂过盈配合接触面间接触压力分布情况。结果表明,过盈量和转速对接触压力影响明显。曲轴静止时,过盈量与接触压力呈线性关系,摩擦因数对接触压力分布影响较小。
In order to further analyze the connection performance of cone interference fit joint, taking the cone interference fit joint of a diesel engine crankshaft vibration damper for example, the combining diameter expression of cone interference joint was de- duced and the formula of contact pressure and the torque transmit of interference fit was obtained through establishing interference fitted theory model, The interference fitting of crankshaft and the main hub was simulated and analyzed by using ANSYS. The effects of fit tolerance, coefficient of friction ,rotational speed and the contact stress distribution on the mating surfaces were dis- cussed in the numerical computation. The result showed that the effects of fit tolerance and rotational speed are obvious ; the fit tolerance has a linear relation with the contact stress and the coefficient of friction has little effects for the distribution of contact pressure at the crankshaft resting.
作者
杜祥冲
周宏根
曹利平
王红新
田桂中
Du Xiangchong;Zhou Honggen;Cao Liping;Wang Hongxin;Tian Guizhong(School of Mechanical Engineering,Jiangsu University of Science and Teehnology,Zhenjiang 212003, Jiangsu, China;Shaanxi Diesel Engine Heavy Industry Co. Ltd. , Xingping 713105, Shaanxi, China)
出处
《现代制造工程》
CSCD
北大核心
2018年第6期142-146,共5页
Modern Manufacturing Engineering
关键词
曲轴减振器
过盈配合
有限元法
接触分析
接触压力
crankshaft vibration damper
interference fit
FEM
contact analysis
contact pressure
