ANALYSIS ON CAGE DYNAMIC CHARACTERISTICS OF ANGULAR CONTACT BALL BEARING DURING ACCELERATION

LUO Ya; HE HaiBin

doi:10.16579/j.issn.1001.9669.2020.04.023

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ANALYSIS ON CAGE DYNAMIC CHARACTERISTICS OF ANGULAR CONTACT BALL BEARING DURING ACCELERATION

更新时间：2022-09-22

- ANALYSIS ON CAGE DYNAMIC CHARACTERISTICS OF ANGULAR CONTACT BALL BEARING DURING ACCELERATION
- Journal of Mechanical Strength Vol. 42, Issue 4, Pages: 907-912(2020)
- 作者机构：
  
  1. 华东交通大学轨道交通技术创新中心
  2. 华东交通大学机电与车辆工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.04.023
  CLC：
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LUO Ya, HE HaiBin. ANALYSIS ON CAGE DYNAMIC CHARACTERISTICS OF ANGULAR CONTACT BALL BEARING DURING ACCELERATION. [J]. 42(4):907-912(2020)
DOI：

LUO Ya, HE HaiBin. ANALYSIS ON CAGE DYNAMIC CHARACTERISTICS OF ANGULAR CONTACT BALL BEARING DURING ACCELERATION. [J]. 42(4):907-912(2020) DOI： 10.16579/j.issn.1001.9669.2020.04.023.

摘要

角接触球轴承是数控机床进给系统中的重要零部件,其加速过程转速的变化对其动态性能影响很大。以角接触球轴承7603025为研究对象,建立了角接触球轴承的多刚体动力学分析模型。采用Adams对角接触球轴承在不同径向载荷、轴向载荷和角加速度条件下的加速过程进行了动态仿真,研究了径向载荷、轴向载荷和角加速度三个工况参数对其加速过程保持架的转速、质心轨迹,以及单个滚球与保持架接触力等动态特性的影响,并进行了实验验证。研究结果表明,径向载荷与角加速度的增大会导致滚球对保持架冲击力变大,从而造成加速过程中保持架转速的波动变大和保持架质心运动不平稳;轴向载荷的增大会导致滚球对保持架碰撞力变小,从而使得加速过程中保持架转速的波动变小和保持架质心运动更平稳。仿真结果与实验结果吻合良好,验证了所建立的动力学分析模型的有效性。

Abstract

Angular contact ball bearing is an important kind of component in the feed system of CNC machine,and its speed change during acceleration has great influence on its dynamic characteristics. Taking angular contact ball bearing 7603025 as investigation object,a dynamics analysis model of multi-rigid-body for angular contact ball bearing was established. Based on ADAMS method,the dynamic simulations of angular contact ball bearing in the acceleration process for different radial load,axial load and angular acceleration conditions were performed. The influence of radial load,axial load and angular acceleration on its dynamic characteristics including cage speed,centroid trajectory of cage and the contact force between rolling ball and cage in the acceleration process were studied,and the experimental verification was carried out. The study results show that the increase of radial load and angular acceleration will increase the impact force of rolling ball on cage,which cause the fluctuation of cage speed increase and the movement of cage centroid more unstable,and the increase of axial load will decrease the impact force of rolling ball on cage,which make the fluctuation of cage speed reduce and the movement of cage centroid more smooth. The simulation results were in good agreement with the experimental results,and the validity of the dynamic analysis model was verified.

关键词

角接触球轴承动力学加速过程保持架

Keywords

Angular contact ball bearingDynamicsAcceleration processCage

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