CONTROL SYSTEM FOR OPERATING GROUP DRIVE OF DRILLING RIG MONITORS Russian patent published in 2005 - IPC

FIELD: well drilling equipment, particularly for laying pipelines and for trenchless engineering system forming.

SUBSTANCE: system includes several hydraulic monitors, planetary reducers of rotator and control unit. Each hydraulic monitor is provided with fixed sliding unit located between hydraulic monitor and planetary reducer of drivers providing rotary and reciprocating movement and made as three flanges. The main flange is secured to planetary reducer, upper and lower ones are connected one to another and installed on hydraulic monitor body. Joint between the flanges is provided with sealing member. The main flange has parallel levers on which hydraulic cylinders connected with pressure-gauges are mounted. Hydraulic cylinder rods are connected with stop screws of upper flange lever. Two hydraulic cylinders and two pressure-gauges are installed on each hydraulic monitor. Pressure-gauge scales are recalibrated to index of torque developed by hydraulic monitor and are installed on gauge board located on drilling rig slider. Two regulating throttles are installed on liquid feed lines, which supply each monitor with working liquid.

EFFECT: possibility to determine power to synchronize operation of several hydraulic monitors.

7 dwg