现代制造工程 ›› 2018, Vol. 453 ›› Issue (6): 142-146.doi: 10.16731/j.cnki.1671-3133.2018.06.026

• 设备设计/诊断维修/再制造 • 上一篇    下一篇

基于过盈配合的曲轴减振器接触特性分析

杜祥冲1, 周宏根1, 曹利平2, 王红新2, 田桂中1   

  1. 1 江苏科技大学机械工程学院,镇江 212003;
    2 陕西柴油机重工有限公司,兴平 713105
  • 收稿日期:2017-01-08 出版日期:2018-06-18 发布日期:2018-07-20
  • 作者简介:周宏根,通信作者,工学博士,教授,硕士研究生导师,江苏科技大学机械工程学院副院长,主要研究方向为数字化设计与制造。E-mail:dxch217012@163.com

Characteristics analysis of the contact about crankshaft vibration damper based on interference fit

Du Xiangchong1, Zhou Honggen1, Cao Liping2, Wang Hongxin2, Tian Guizhong1   

  1. 1 School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003, Jiangsu,China;
    2 Shaanxi Diesel Engine Heavy Industry Co.Ltd.,Xingping 713105,Shaanxi,China
  • Received:2017-01-08 Online:2018-06-18 Published:2018-07-20

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。

关键词: 曲轴减振器

Abstract: 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 deduced 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 discussed 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.

Key words: crankshaft vibration damper, interference fit, FEM, contact analysis, contact pressure

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