发明名称 |
MOUNTING ATTACHMENT AND BEARING SYSTEM FOR AN INDUSTRIAL EARTH-BORING CUTTER |
摘要 |
A rotary cutter mount for an earth-boring cutter includes a bearing journ al adapted to be coupled to a cutter body. A first mounting end of the bearing journal is shaped to enable rotationally fixed positioning in a corresponding yoke. The yoke is operatively coupled to the body of the cutter. A ball race is formed in an exterior surface of the journal. A ball loading passage is formed in the journal. The ball loading passage has an exit hole on the race. The hole is positioned so that it is disposed in a rotary orientation which is at a selected angular displacement from the maximum radial loading on the journal. The first mounting end and the corresponding yoke are adapted to enable a plurality of rotary orientations. Each of the rotary orientations is such that the hole is oriented other than in the direction o f maximum radial loading.
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申请公布号 |
CA2385547(A1) |
申请公布日期 |
2002.11.08 |
申请号 |
CA20022385547 |
申请日期 |
2002.05.08 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
CARIVEAU, PETER L.;SHOTTON, VINCENT W. |
分类号 |
E21B;E21B10/22;E21C;(IPC1-7):E21B10/22 |
主分类号 |
E21B |
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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