美国ELECTRO-FLOW CONTROLS公司完成了对TORK-TRAK2,2900型钻机转矩监测器的野外试验。该监测器可连续指示经过校准的施加给钻杆的转矩,读数为瞬时读数,单位是英尺·磅。还装有对转矩进行永久记录的曲线纸带记录器。这种转矩监测器能自动脱开离合器,并能自动刹车,可延长钻头使用寿命和防止扭断钻杆。 The United States ELECTRO-FLOW CONTROLS completed a field test of the TORK-TRAK2, 2900 drilling rig torque monitor. The monitor continuously indicates the calibrated torque applied to the drill pipe. The reading is instantaneous and the unit is foot-pound. It is also equipped with a curved tape recorder that permanently records the torque. This torque monitor automatically disengages the clutch and automatically brakes, prolongs bit life and prevents twisting of the drill pipe.