东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (7): 1022-1027.DOI: 10.12068/j.issn.1005-3026.2018.07.022

• 机械工程 • 上一篇    下一篇

基于载荷分布和统计的TBM主轴承寿命计算

张春光1, 屈福政1, 宁诗哲1, 谢正义1,2   

  1. (1. 大连理工大学 机械工程学院, 辽宁 大连116024; 2. 沈阳建筑大学 交通与机械工程学院, 辽宁 沈阳110168 )
  • 收稿日期:2017-03-10 修回日期:2017-03-10 出版日期:2018-07-15 发布日期:2018-07-11
  • 通讯作者: 张春光
  • 作者简介:张春光(1984-),男,辽宁沈阳人,大连理工大学博士研究生; 屈福政(1957-),男,辽宁大连人,大连理工大学教授,博士生导师.冯明杰(1971-), 男, 河南禹州人, 东北大学副教授; 王恩刚(1962-), 男, 辽宁沈阳人, 东北大学教授,博士生导师.
  • 基金资助:
    国家重点基础研究发展计划项目(2013CB035402); 国家自然科学基金资助项目(51275070).国家自然科学基金资助项目(51171041).

Life Calculation of TBM Main Bearing Based on Load Distribution and Statistics

ZHANG Chun-guang1, QU Fu-zheng1, NING Shi-zhe1, XIE Zheng-yi1,2   

  1. 1. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China; 2. School of Transportation and Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
  • Received:2017-03-10 Revised:2017-03-10 Online:2018-07-15 Published:2018-07-11
  • Contact: ZHANG Chun-guang
  • About author:-
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摘要: 以吉林中部引水工程总干线二标段全断面岩石掘进机(tunnel boring machine, TBM)主轴承为研究对象,在考虑联接结构刚度及边界条件影响的条件下,基于L-P理论并引入切片法计算了主轴承的额定寿命.对TBM的工作掘进推力记录进行统计分析,得到了基于Miner累积损伤理论的主轴承使用寿命.结果表明:主轴承内部载荷分布受连接结构刚度影响较大,采用切片法计算其额定寿命较为合理.适当调整连接结构的形式及尺寸可大幅改善主轴承滚道载荷分布均匀性并提高其额定寿命.推进力载荷统计近似为截断正态分布,可根据额定推力对主轴承的使用寿命进行预估.

关键词: TBM, 主轴承, 载荷分布, 寿命计算, 累积损伤

Abstract: With the stiffness characteristics and boundary conditions considered, L-P theory and slicing method were introduced to calculate the rated life of the main bearing in the tunnel boring machine (TBM) used in the second section of the diversion project’s main line for the central region of Jilin province. The statistical analysis of TBM thrust force record was carried out to calculate the life of the main bearing based on Miner’s cumulative damage theory. The results showed that the internal load distribution of the main bearing is greatly affected by the stiffness characteristics of the connection structures, and the slicing method is suitable well for calculating the main bearing’s rated life. With the modified size and form of the connection structure, the uniformity of raceway load distribution is improved greatly and the main bearing’s rated life is extended. In statistics, the TBM thrust forces are truncated normal distribution approximately, and the service life of the main bearing could be calculated based on the rated thrust force.

Key words: TBM(tunnel boring machine), main bearing, load distribution, life calculation, cumulative damage

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