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1. 发明授权

US4711143A Rock bit assembly method 失效
标题翻译：摇摆装配方式
公开(公告)号：US4711143A
公开(公告)日：1987-12-08
申请号：US890718
申请日：1986-07-25
申请人： Jesse J. Loukanis , Will W. Mathews , Raymond L. Tune
发明人： Jesse J. Loukanis , Will W. Mathews , Raymond L. Tune
IPC分类号： B23P15/28 , E21B10/20 , E21B10/08
CPC分类号： B23P15/28 , E21B10/20
摘要： In a method of assembling a roller cone type rock bit, on a body having a tool joint adjacent one end and at least one leg portion adjacent the other end, the leg portion is provided with a longitudinally outer surface which is inclined longitudinally inwardly from its radially outer extremity to its radially inner extremity; on a base for a cone assembly, an end surface is provided configured to mate with the outer surface of the leg portion of the body; a roller cone is rotatably mounted on the base distal the end surface to form a cone assembly, and the end surface of the base is mated with the outer surface of the leg portion; the base is then welded to the leg portion along the juncture of the mating surfaces to mount the cone assembly on the leg portion.
摘要翻译：在组装辊锥型岩石钻头的方法中，在具有邻近一端的工具接头的主体和与另一端相邻的至少一个腿部的主体上，所述腿部设置有纵向外表面，所述纵向外表面从其纵向向内倾斜径向外端至其径向内端; 在用于锥形组件的基座上，端面设置成与主体的腿部的外表面相配合; 滚子锥体可旋转地安装在基座的远端端部表面上，以形成锥形组件，底座的端面与腿部的外表面配合; 然后将基座沿着配合表面的接合处焊接到腿部，以将锥形组件安装在腿部上。

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