Effect of Stiffness of Bearings and Gearbox Housing on the Dynamic characteristic of Drive System

Xu Liang; Shi Chunbao; Long Wei

doi:10.16578/j.issn.1004.2539.2015.07.042

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Effect of Stiffness of Bearings and Gearbox Housing on the Dynamic characteristic of Drive System

更新时间：2022-10-20

- Effect of Stiffness of Bearings and Gearbox Housing on the Dynamic characteristic of Drive System
- Vol. 39, Issue 7, Pages: 170-175(2015)
- 作者机构：
  
  1. 中煤科工集团重庆研究院有限公司
  2. 瓦斯灾害监控与应急技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2015.07.042
  CLC：
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[1]胥良,史春宝,龙威.轴承及箱体刚度对传动系统动态特性的影响[J].机械传动,2015,39(07):170-175.

Xu Liang, Shi Chunbao, Long Wei. Effect of Stiffness of Bearings and Gearbox Housing on the Dynamic characteristic of Drive System. [J]. 39(7):170-175(2015)
[1]胥良,史春宝,龙威.轴承及箱体刚度对传动系统动态特性的影响[J].机械传动,2015,39(07):170-175. DOI： 10.16578/j.issn.1004.2539.2015.07.042.

Xu Liang, Shi Chunbao, Long Wei. Effect of Stiffness of Bearings and Gearbox Housing on the Dynamic characteristic of Drive System. [J]. 39(7):170-175(2015) DOI： 10.16578/j.issn.1004.2539.2015.07.042.

摘要

在详细阐述齿轮箱各主要零部件的建模方法的基础上,建立不同复杂等级的某千米定向钻机动力头齿轮箱动态性能仿真分析模型,讨论了轴承刚度和箱体刚度对系统动态特性的影响。结果表明,轴承刚度及箱体柔性对动力头动态特性有显著影响,分析时不能忽略;增大轴承及箱体刚度,可有效提高系统固有频率,减小模态位移及齿轮副动态传动误差;齿轮副齿面接触应力对箱体刚度较为敏感,而轴承刚度对其影响不大。文中的建模方法和仿真结果对动力头减速器动态性能的设计和分析具有重要的指导意义。

Abstract

The dynamic characteristic simulation analysis model of a directional drilling machine power head gearbox for different levels of complex is established based on the detailed introduction of the modeling method of main components in gearbox,the influence of the stiffness of bearings and housing on dynamic characteristic of gear drive system is discussed. The results show that the bearings stiffness and housing flexibility has a significant influence on the dynamic characteristic and cannot be ignored in the analytical model; Increase the bearing stiffness and housing stiffness can effectively improve the system natural frequency,reduce the modal displacement and the gear dynamic transmission error; The gear tooth surface contact stress is relatively sensitive to the gearbox housing,but is not to bearing stiffness. The modeling presented method and the results of simulation on dynamic performance of the gearbox has an important guiding significance to the design and analysis.

关键词

轴承刚度柔性箱体动态特性固有频率齿面载荷

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Related Institution

College of Mechanical Engineering, Anhui University of Science and Technology

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