• CN:11-2187/TH
  • ISSN:0577-6686

›› 2000, Vol. 36 ›› Issue (1): 83-86.

• 论文 • 上一篇    下一篇

多点啮合柔性支承传动系统的疲劳特性研究

刘宏昭;苏志霄;张生宁;曹惟庆   

  1. 西安理工大学机械与精密仪器工程学院;西安重型机械研究所;西安理工大学
  • 发布日期:2000-01-15

FATIGUE STRENGTH RESEARCH FOR THE MULTIPLE-POINT MESHING TRANSMISSION MECHANISM SYSTEM WITH FLEXIBLE SUPPORT

Liu Hongzhao;Su Zhixiao;Zhang Shengning;Cao Weiqing   

  1. Xi'an University of Technology Xi'an Heavy Mechanical Institute Xi'an University of Technology
  • Published:2000-01-15

摘要: 以应用多柔传动作为倾动机构的氧气转炉这一典型设备为例,调研、分析和统计出了300t转炉在一个典型冶炼周期中周期倾动载荷的变化规律,首次建立了该系统的载荷谱和耳轴的应力谱。对一个典型冶炼周期中耳轴的应力谱进行了雨流计数和一次应力损伤分布的计算,利用疲劳累积损伤理论计算了300t转炉耳轴的疲劳寿命和可靠度。

关键词: 可靠性, 疲劳寿命, 柔性支承, 载荷谱, 转炉倾动机构

Abstract: The tilting torque in a typical melting period for the 300t oxygen converter, which uses the multiple-point meshing transmission system with flexible support as its tilting mechanism, is obtained by investigation and statistics. The system’s load spectrum and stress spectrum of the main shaft are established for the first lime. The Rychlik rainflow counting method has been introduced to the calculation of the fatigue damage distribution for the stress spectrum of the main shaft in one typical melting period. The main shaft’s fatigue life and reliability are calculated by the rule of fatigue accumulating damage.

Key words: Converter tilting mechanism, Fatigue life, Flexible support, Load spectrum, Reliability

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