近几年来,我们和上海第一石油机械厂、兰州石油化工机器厂、上海材料研究所及有关各油田一起,共同研制了储油密封滚动轴承三牙轮钻头,初步取得了一些效果,其中10号钻头已成批推广生产,8号钻头的试制品的进步和寿命也比普通不密封的钻头提高了一倍以上。为了进一步开展储油密封滚动轴承钻头的生产和研究工作,现将提高钻头轴承寿命的有关问题作简要介绍如下,以供参考。 In recent years, we have jointly developed the three-roller oil-sealed ball bearing with the first Shanghai Petroleum Machinery Factory, Lanzhou Petrochemical Machinery Factory, Shanghai Institute of Materials and related fields, and achieved some initial results, of which 10 Drills have been mass-production, trial No. 8 bit of the progress and life expectancy than the average unsealed drill more than doubled. In order to further carry out the production and research of oil sealed roller bearing bits, the related problems of improving the bearing life of bit bearings are briefly introduced as follows.