| 3NB—1300钻井泵的改进及维修 |
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| 引用本文： | 杨文松.3NB—1300钻井泵的改进及维修[J].石油机械,1995(5). |
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| 作者姓名： | 杨文松 |
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| 作者单位： | 华北石油管理局第三钻井工程公司 |
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| 摘 要： | 论述了３ＮＢ—１３００钻井泵使用和维修过程中存在的问题，分析了曲轴两端支撑轴承（４０５３１７２轴承）跑内圆是轴承内圆与轴颈之间的配合过盈量偏小所致，宜适当加大。而轴承易烧坏的原因是润滑油供应不足，宜进行强制润滑改造。最后介绍了２台３ＮＢ—１３００钻井泵改造后的使用情况及轴颈支撑轴承跑内圆后的３种修复方法。
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| 关 键 词： | 钻井泵，技术改造，轴承，修复 |
Modification and maintenance of model 3NB-1300 drill pumps |
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| Yang Wensong,.Modification and maintenance of model 3NB-1300 drill pumps[J].China Petroleum Machinery,1995(5). |
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| Authors: | Yang Wensong |
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| Affiliation: | Yang Wensong; |
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| Abstract: | The problems with the service and maintenance of Model 3NB-1300 drill pumps are expounded.Analysis shows that the slipping of the inner race of the supporting bearings against the crank shaft humals is caused by unsufficient interference between race and journal,so proper increase in the interference is required,and the burning of the bearing is caused by insufficient supply of lubricating oil, therefore forced lubrication should be carried out.Three kinds of methods for recondition in case of bearing slipping and the working condition of two modified Model 3NB-1300 drill pumps are introduced. |
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| Keywords: | drill pump technical modification bearing recondition |
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