BX Hydraulically Actuated Elevator
The BX Elevator is designed for remote actuated operation by the driller. It is cost competitive with a normal rig complement of handling tools, i.e. air-op, drill pipe, drill collar, casing and tubing elevators and offers the most economical way to fully actuate all the elevator functions.
With the double door design, the elevator provides optimal balance and performance. The hydraulic cylinders are located inside the body casting for maximum protection, and yet they are accessible for normal maintenance.
Changeable bushings are used to allow one elevator frame to handle all pipe size and type requirements. The bushings are locked into place with spring loaded pins providing quick, easy removal and installation. The bushings can be simply changed within 5 minutes, no special tools are needed, and no loose nuts, bolts or pins are involved.
The hinge journals are bushed to put major wear into replaceable components avoiding taking elevators out of service for repair. One door bushing is spring loaded with linkage connecting it to a locking pin. Any load on this bushing segment engages the pin preventing the elevator from opening. This safety lock prevents the elevator from opening under load. The elevator can also be provided with an interlock system as an option when used with a power slip for tripping. A trigger mechanism automatically initiates the closing sequence when pipe is thrown into the elevator.
NOV M/D Totco, 1200 Cypress Creek Rd, Cedar Park, TX 78613-3614. Tel: 512-331-0411; Fax: 512-331-2219.