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公开(公告)号：EP0166675A2
公开(公告)日：1986-01-02
申请号：EP85630095.9
申请日：1985-06-20
IPC分类号： E21B19/16
CPC分类号： E21B19/16
摘要： A wrench assembly for making and breaking connections between tubular members, such as a drill string and a top drive sub. The wrench assembly consists of a lower wrench (33) and an upper wrench (31). The lower wrench (33) has a curved gate arm (41) and a curved latch arm (43) pivotable between an open position and a closed position. The gate arm (41) has a plurality of teeth on its outer surface, and the latch arm (43) has a plurality of teeth on its inner surface, for locking engagement with the teeth on the gate arm (41). The lower wrench (33) also has a clamping cylinder (61) and a die block (59) for forcing the tubular member against the gate arm (41). The upper wrench (31), mounted above the lower wrench (33), has a semicircular plate (65). At least one spline (67) is mounted on the interior surface of the semicircular plate (59) for engagement with at least one spline on the top drive sub. A fluid cylinder (71) is provided for applying torque to the wrenches to rotate one of the wrenches with respect to the other wrenches.
摘要翻译： 用于制造和断开管状构件（例如钻柱和顶部驱动器）之间的连接的扳手组件。 扳手组件由下扳手（33）和上扳手（31）组成。 下扳手（33）具有弯曲的门臂（41）和在打开位置和关闭位置之间可枢转的弯曲的闩锁臂（43）。 门臂（41）在其外表面上具有多个齿，并且锁臂（43）在其内表面上具有多个齿，用于与门臂（41）上的齿锁定接合。 下扳手（33）还具有用于迫使管状构件抵靠门臂（41）的夹紧缸（61）和模块（59）。 安装在下扳手（33）上方的上扳手（31）具有半圆板（65）。 至少一个花键（67）安装在半圆形板（59）的内表面上，用于与顶部驱动器副的至少一个脊接合。 设置有用于向扳手施加扭矩以相对于其它扳手旋转扳手中的一个扳手的流体缸（71）。
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