| 牙轮钻头压力补偿系统的发展 |
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| 引用本文： | 马红伟,邓嵘.牙轮钻头压力补偿系统的发展[J].石油矿场机械,2007,36(7):22-25. |
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| 作者姓名： | 马红伟 邓嵘 |
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| 作者单位： | 1. 东方地球物理公司,装备研究中心,河北,涿州,072751
2. 西南石油大学,机械系,成都,610500 |
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| 摘 要： | 钻头轴承的寿命不仅取决于轴承材质，更取决于工作环境。密封圈的作用是将泥浆隔离在轴承腔之外，使轴承能工作在一个良好环境中。轴承失效的主要原因是密封圈先期失效，密封圈失效除其自身质量外，主要与密封圈两侧的压差有关，过大的压差是造成密封圈失效的主要原因。介绍了减小压差的压力补偿系统结构的发展。
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| 关 键 词： | 牙轮钻头 压力补偿系统 O形密封圈 单向密封 双向密封 |
| 文章编号： | 1001-3482（2007）07-0022-04 |
| 修稿时间： | 2006-09-06 |
Pressure Compensating System Devolvement of Cone Bit |
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| MA Hong-wei,DENG Rong.Pressure Compensating System Devolvement of Cone Bit[J].Oil Field Equipment,2007,36(7):22-25. |
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| Authors: | MA Hong-wei DENG Rong |
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| Affiliation: | 1. Equipment Research Center of BGP , Zhuozhou 072751, China; 2. Department of Mechanical Engineer, Southwest Petroleum University, Chengdu 610500, China |
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| Abstract: | Service life of bit bearing is not only determined by bearing material, but also by its en-vironment. The seal ring keeps fluid out of bearing, and makes a good environment for bearing.Now hearing spoiling is mainly due to seal ring early spoiling. Seal ring spoiling is not only rela-tion with its quality, but also with pressure dispersion on both sides of seal ring. Large pressure dispersion is major reason of seal spoiling. In the paper it shows that the structure reduces pres-sure difference. |
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| Keywords: | cone bit pressure compensating system O-ring seal unilateral seal duplex seal |
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