DEVICE FOR DETERMINING BOREHOLE WALL DEFORMATION

DEVICE FOR DETERMINING BOREHOLE WALL DEFORMATION

mining industry designed for remote determination of borehole wall deformation in evaluation of stressed-strained state of rock mass. SUBSTANCE: device has central rod carrying coaxially installed bracing flexible members and deformation transmitting member, converter of linear motions and indicatio...

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Hauptverfasser: SOKOLOV A.B, JAKOVLEV D.V, ROZENBAUM M.A, REVA V.N
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
MINING OR QUARRYING
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creator SOKOLOV A.B
JAKOVLEV D.V
ROZENBAUM M.A
REVA V.N
description mining industry designed for remote determination of borehole wall deformation in evaluation of stressed-strained state of rock mass. SUBSTANCE: device has central rod carrying coaxially installed bracing flexible members and deformation transmitting member, converter of linear motions and indication unit connected to converter and installed in mine working. Central rod has head member to which additional centering springs and bracing flexible members are attached by their ends. Member for deformation transmission is made in the form of flat springs located diametrically opposite to each other and whose one ends are secured to head member, and parabolic spring coaxially installed to central rod for free motion over it. Ends of parabolic spring are rigidly connected to other ends of flat springs. Converter of linear motions may be made in the form of sealed-contact reed relays rule installed on central rod and band magnet whose one end is attached to internal surface of parabolic spring in its central part, and the other end is located on sealed-contact reed relay rule for motion over it. Converter of linear motions may have stop ring for regulation of zero position and installed coaxially on central rod with a rest on external surface of parabolic spring. EFFECT: simplified design and increased operating reliability. 3 cl, 3 dwg
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SUBSTANCE: device has central rod carrying coaxially installed bracing flexible members and deformation transmitting member, converter of linear motions and indication unit connected to converter and installed in mine working. Central rod has head member to which additional centering springs and bracing flexible members are attached by their ends. Member for deformation transmission is made in the form of flat springs located diametrically opposite to each other and whose one ends are secured to head member, and parabolic spring coaxially installed to central rod for free motion over it. Ends of parabolic spring are rigidly connected to other ends of flat springs. Converter of linear motions may be made in the form of sealed-contact reed relays rule installed on central rod and band magnet whose one end is attached to internal surface of parabolic spring in its central part, and the other end is located on sealed-contact reed relay rule for motion over it. 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SUBSTANCE: device has central rod carrying coaxially installed bracing flexible members and deformation transmitting member, converter of linear motions and indication unit connected to converter and installed in mine working. Central rod has head member to which additional centering springs and bracing flexible members are attached by their ends. Member for deformation transmission is made in the form of flat springs located diametrically opposite to each other and whose one ends are secured to head member, and parabolic spring coaxially installed to central rod for free motion over it. Ends of parabolic spring are rigidly connected to other ends of flat springs. Converter of linear motions may be made in the form of sealed-contact reed relays rule installed on central rod and band magnet whose one end is attached to internal surface of parabolic spring in its central part, and the other end is located on sealed-contact reed relay rule for motion over it. 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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
MINING OR QUARRYING
title DEVICE FOR DETERMINING BOREHOLE WALL DEFORMATION
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