发明名称 |
Self-centering rotor bearing assembly for submersible pump motors |
摘要 |
The invention provides a submersible pumping system which includes a motor containing self-centering rotor bearing assemblies. Each rotor bearing assembly in accordance with the present invention includes a sleeve, a journal, and at least two seals. The journal is preferably disposed about the sleeve which is keyed to the power transmission shaft of the motor. The journal has a peripheral surface which is configured to have at least two circumferential support regions which are spaced apart from one another. Each of these circumferential support regions supports a corresponding seal. Each seal includes an interface member and an activating member. When in place in a rotor section of a submersible pump motor, the seals frictionally engage the inner surface of the stator and exert a centering force against the journal and thus against the bearing sleeve and the power transmission shaft. The seals also exert a force against the inner surface of the stator which prevents rotation of the journal when the power transmission shaft is rotating.
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申请公布号 |
US6091175(A) |
申请公布日期 |
2000.07.18 |
申请号 |
US19980042346 |
申请日期 |
1998.03.12 |
申请人 |
CAMCO INTERNATIONAL, INC. |
发明人 |
KINSINGER, GRIFF H. |
分类号 |
F16C17/22;F16C27/06;(IPC1-7):H02K5/16;F04D13/08 |
主分类号 |
F16C17/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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