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本文讨论了钻机传动滚子链的主要失效形式及其有限寿命的计算原理,结合国产钻机现有链条产品的开发水平,推荐了制定适合GB3638—83石油钻机传动滚子链的实用功率表和帐蓬曲线的方法,以及疲劳指数值。还阐述了确定钻机各链条计算工况和计算载荷的方法;提供了在单点及多点过载工况下链条疲劳寿命的计算公式。
In this paper, the main failure modes of the drive roller chain of drilling rig and the calculation principle of its finite life are discussed. Based on the development level of the existing chain products of domestic drilling rigs, it is recommended to formulate a practical power meter and account for the drive roller chain of the oil drilling rig GB3638-83. Pont-curve method, as well as the fatigue index value. The method of calculating working conditions and calculating load of each chain of drilling rig is also described. The calculation formula of chain fatigue life under single-point and multi-point overload conditions is also provided.