论文部分内容阅读
美国Bowen工具公司研制了ES-7型电动钻井水龙头,代替现有的方钻杆、转盘旋转钻杆钻井方法。ES-7型电动钻井水龙头连续工作扭矩为25,000磅·英尺,间隙工作扭矩为30,000磅·英尺。最大转数为300转/分,额定负荷为500吨,在直流电机970安时,输出850马力。新型钻井水龙头钻井系统,不使用链钳和大钳。
American Bowen Tool Company has developed ES-7 electric drilling faucet, instead of the existing square drill, rotary drill pipe drilling method. The ES-7 Electric Drilling Faucet has a continuous work torque of 25,000 pounds per foot and a clearance work torque of 30,000 pounds per foot. The maximum number of revolutions is 300 rev / min and the rated load is 500 tons. When the DC motor is 970 ampere, it outputs 850 horsepower. New drilling faucet drilling system, do not use chain clamp and tongs.