Borkit Oiltech - это...

The X-Y Racker consists of two stationary derrick mounted bridge travel rails, an hydraulically driven bridge assembly with drive transmission installed above the bridge travel rails and a secondary trolley/hoist assembly rolling on the bridge assembly to provide x-y motion.  The X-Y Racker is installed in the derrick above the fingerboard. The function of the racker is to allow for “offline stand building” and guidance of drillpipe stands, casing stands and BHA assy’s to the setback / fingerboard area. The hoisting of the tubular is done by means of a winch and an elevator.  The winch performs the hoisting by pulling a wire, guided by a fairlead assembly located directly above the load.  Motion stop buffer provides a mechanical stop for bridge assembly and the travel/hoist assembly eliminating the risk of collision with the Top Drive System. The stops nearest the well center are removable when access to the well center in an override mode is required.The X-Y Racker uses electrical components suitable for operation in Zone 2. The position of the bridge, trolley and hoist are monitored using absolute encoder feedback and interlocked for end of travel limits and for acceleration and deceleration of the X-Y Racker into defined positions. The encoders are mechanically isolated for reliable operation and are for non-hazardous area operation.