TEST BENCH FOR STUDYING PROCESS OF ROCK DESTRUCTION BY RECIPROCATING-ROTARY METHOD Russian patent published in 2024 - IPC E21B45/00 G01H1/10 

FIELD: measuring.

SUBSTANCE: invention relates to bench equipment for research of rock destruction process by reciprocating-rotary method, in particular when drilling wells in subglacial rocks of Antarctica and islands of the Arctic zone, as well as in permafrost conditions. Test bench for studying the process of rock destruction by a reciprocating-rotary method includes a core retrieving barrel, the cable lock of which is detachably connected to an electric winch through a load-carrying cable passing through a pulley, which is installed on the upper part of a triangular derrick. In this case, the cable lock is removably connected to the housing of the loading section, which is removably connected to the housing of the stepper motor, which is removably connected to the housing of the mechanical section, at the end of the output shaft of which an adapter is installed, which is connected to the shaft of the swivel, swivel output shaft is detachably coupled with the shank of the core barrel rigidly jointed with the drill bit. In the body of the core barrel there is a hole in which there is a sensor of vibration oscillations, a sensor of linear movement, which is rigidly fixed on the lower surface of the upper part of the triangular derrick, a movable and a fixed vessel. On the inner walls in the lower part of the fixed vessel, strain gauges of torque moment are installed with possibility of removal. Free end of the torque sensors is installed with possibility of removal in the fixture of the fixed vessel, and the loaded end of the torque sensors is installed in the fixture of the movable vessel. Plunger pump and intake pump are connected to the filtration tank through a flexible hose, the nozzle of which is connected by a flexible hose to the inlet nozzle of the plunger pump, which is connected through a flexible hose to a liquid flow sensor, which is connected to the inlet nozzle of the swivel through a flexible hose. Shaft of the plunger pump is mechanically connected to the shaft of the drive electric motor. Electric winch is electrically connected to frequency converter, which is electrically connected to power supply board, drive motor is electrically connected to frequency converter. Vibration sensor, strain gauges of torque, fluid flow sensor and linear displacement sensor are electrically connected to inputs of control unit, data inputs and outputs of which are connected to data inputs and outputs of computer.

EFFECT: determination of optimum operating parameters of rock drilling.

1 cl, 1 dwg