drill rig

AC variable frequency electric drive drilling rigs use gear reducer box to drivesingle shaft draw works and helicospiral base and are suitable for 114mm drill pipesand the drilling operation of oil wells, gas wells, and water wells with adrilling depth from 3,000m to 7,000m.The whole unit adopts diesel generating set as main active force, via VFD actuatingsystem converting the AC current output by diesel generating set into AC currentwith frequency adjustable, then via AC variable frequency motor driving the drawworks, rotary table and drill pump separately.Draw works, which adopts AC variable frequency control and energy dissipation braking,have the features of small volume, light weight, reliable performance, permanentworking, convenient maintenance The disc brake is used to parking brake,allocation and emergency stop. Main function achieves total numerical control throughcomputer and electric control system. AC variable frequency decelerating electricmotor acting as automatic drill and accident braking tra

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