DEVICE FOR DETERMINING PROPERTIES OF ROCK IN WELLS OF CONTOUR-ADJACENT EXCAVATIONS MASSIVE Russian patent published in 2004 - IPC

FIELD: mining industry.

SUBSTANCE: device has measuring head connected to manually operated pump by sleeves, said head having a cylindrical body, punch connected to piston of hydraulic cylinder, which punch interacts with spring-loaded rod of device for measuring linear displacements of piston. End of hydraulic cylinder piston on the side of piston is made cone-shaped at portion of interaction with rod of device for measuring linear displacements, end of which is connected to optical sensor of linear displacements placed in measuring head. In cylindrical body of measuring head a socket is made, in which pressure sensor is mounted, which interacts with channel of inlet of excessive fluid pressure to piston hollow of hydraulic cylinder. Electric circuits of pressure sensor and of linear displacements sensor may be connected to electric circuit of preamplifier plate, which is connected to electric circuit of controlling block outside the well. In cylindrical body of measuring head two hydraulic cylinders may be additionally placed having different diameters with shared piston, cylinder of lesser diameter is connected to piston hollow of punch hydraulic cylinder by means of channel, rod hollow of said punch being connected through draining main of cylindrical body, and also a sleeve, and a hydraulic switch with manually operated pump.

EFFECT: higher precision of measurements.

3 cl, 6 dwg