| 摘要 |
<p>TITLE PIPE DELIVERY SYSTEM AND METHOD FOR DELIVERING PIPE A pipe delivery system and method in which pipe is fed to the drilling rig floor by carrying the pipe in a single elongated skate along a horizontal and then upwardly inclined ramp so that the end of the pipe can be hoisted upwardly off the skate. Pipe is kicked off the skate laterally onto pipe delivery ramp plates by pushing ejector plates carried by the skate upwardly into an angle to cause the pipe to roll off the skate and down the delivery ramp plates. The ejector plates are actuated by pistons and cylinders housed in a retracted position below the path of the skate and which are extended upwardly against the ejector plates. The pipe is delivered by gravity rolling the pipe either from or to the skate by selectively positioning ramp plates with the desired lateral inclination at each side of the skate and providing indexing fingers which are movable into the path of the pipe on the ramp for separating an endmost pipe for removal. Pipe is transferred between vertically spaced layers of pipe racks and the skate location by rollers which are powered to move the pipe along the pipe axis and which are also vertically positionable for carrying the pipe between the delivery ramp plates and the various layers of the pipe racks.</p> |
