本文认为造成石油钻机链条失效的因素很多,必须根据链条的具体使用条件,抓住主要矛盾,采取有效措施,才能大幅度提高链条的使用寿命。 根据国产钻机链传动设计向密闭润滑结构发展的必然趋势,作者认为我国钻机链条的攻关重点应该放在提高链条的疲劳性能上。同时,改进高速链条开口销的结构和材质,并改进防锈剂的性能。 In this paper, there are many factors that lead to the failure of the oil rig chain. It is necessary to grasp the major contradictions according to the specific conditions of use of the chain and take effective measures to greatly improve the service life of the chain. According to the inevitable trend of the domestic rig chain drive design to the development of airtight lubrication structure, the author believes that the focus of our drilling rig chain should focus on improving the fatigue performance of the chain. At the same time, improve the structure and material of high-speed chain cotter pin, and improve the performance of anti-rust agent.