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1. 发明授权

US4585256A Side feed water swivel 失效
标题翻译：侧进水旋转
公开(公告)号：US4585256A
公开(公告)日：1986-04-29
申请号：US667095
申请日：1984-11-01
申请人： Charles L. Rassieur , Dean T. Pierce
发明人： Charles L. Rassieur , Dean T. Pierce
IPC分类号： E21B21/02 , F16L27/093 , F16L27/00 , E21B17/18
CPC分类号： F16L27/093 , E21B21/02 , Y10S277/91
摘要： A side feed water swivel for a hollow drill string includes a spindle one end of which is adapted to fit a socket on a rotary table of a drill rig, and the other end, to connect to hollow drill rods, and, intermediate its ends, a receiving section having upper and lower smooth cylindrical bearing surfaces and between them water-receiving passages extending to an axial passage blind at its upper end, and a housing embracing the bearing surfaces and defining between them a water-receiving chamber. The housing has an inlet port extending through a wall to communicate with the chamber substantially midway axially of the housing. The housing has upper and lower bearing surfaces complementary to the spindle bearing surfaces. O-ring channels in the housing bearing surfaces are positioned axially asymmetrically with respect to the center line of the housing. The housing is so made that it can be mounted on the spindle in either of two orientations 180.degree. apart so that when one pair of sealing surfaces is worn, the housing can be removed from the spindle, inverted and remounted to permit the O-rings in the channels to engage a new set of sealing surfaces.
摘要翻译：用于空心钻柱的侧进料水回转装置包括主轴，其一端适于将钻孔座安装在钻机的旋转台上，另一端连接到中空钻杆，并且在其中间，接收部分具有上和下光滑的圆柱形支承表面，并且在它们之间延伸到在其上端处被盲目的轴向通道的水接收通道，以及包围轴承表面并在它们之间限定接收水槽的壳体。壳体具有延伸穿过壁的入口端口，其基本上位于壳体轴向的中部。壳体具有与主轴支承面互补的上下轴承面。壳体轴承表面中的O形环通道相对于壳体的中心线轴向不对称地定位。壳体是这样制成的，使得它可以以180°的两个方向安装在主轴上，使得当一对密封表面磨损时，壳体可以从主轴移除，反向并重新安装以允许O形环在渠道中采用新的密封面。

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