ROTARY CUTTING DRILL BIT Russian patent published in 2005 - IPC

Abstract RU 2264521 C1

FIELD: mining industry, particularly for drilling blast holes in mines or open pits and for making technological holes.

SUBSTANCE: drill bit has body with ribs, axes secured in ribs by spline connections and eccentric bushes on which toothed disc cutters are installed. Outer surfaces of eccentric bushes are inclined at α angle to axis to provide αv angles of cutters inclination to vertical plane and αh angles of cutters inclination to vertical plane of hole bottom. Angles αv and αh may be changed in dependence of physical mechanical properties of rock to be drilled. Relation between above angles satisfies the following equation: α=αvh, wherein angle between side edges of toothed disc cutters αc=2α. Cutters have longitudinal grooves with trapezoid cross-sections at bases thereof adapted for alternately receiving hard-alloy teeth and intermediate sections having the same trapezoid cross-section at bases thereof. Number of hard-alloy teeth N is determined in dependence of rigidity f of rock to be drilled as , where Dc is diameter of toothed disc cutter and Dt is diameter of working hard-alloy tooth part.

EFFECT: increased operational efficiency and extended range of efficient usage thereof in solid rock having composite structure with different physical mechanical properties and in karst massifs.

4 cl, 6 dwg, 2 tbl

Similar patents RU2264521C1

Title Year Author Number
DRILLING BIT OF CUTTING AND ROTATING TYPE 2016
  • Bovin Konstantin Anatolevich
  • Gilev Anatolij Vladimirovich
  • Chenokov Valerij Timofeevich
  • Belozerov Ilya Romanovich
  • Shigin Andrej Olegovich
  • Krylo Andrej Evgenevich
RU2631948C1
DRILLING CHISEL WITH VARIABLE ROCK-DESTROYING ARMAMENT 2003
  • Butkin V.D.
  • Gilev A.V.
  • Chesnokov V.T.
  • Gilev R.A.
  • Demchenko I.I.
  • Nekhoroshev D.B.
  • Shapovalenko G.N.
RU2250344C1
DRILLING ROLLER BIT (VARIANTS) 2003
  • Butkin V.D.
  • Gilev A.V.
  • Chesnokov V.T.
  • Gilev R.A.
  • Nekhoroshev D.B.
  • Bugaev E.A.
RU2257457C1
BORING CUTTER 2002
  • Butkin V.D.
  • Gilev A.V.
  • Revod'Ko A.V.
  • Chesnokov V.T.
  • Gilev R.A.
  • Todinov A.M.
  • Nekhorosheva L.V.
RU2228423C2
ROLLING CUTTER DRILLING BIT 2010
  • Butkin Vladimir Dmitrievich
  • Gilev Anatolij Vladimirovich
  • Dogadin Dmitrij Sergeevich
  • Chesnokov Valerij Timofeevich
  • Gilev Roman Anatol'Evich
RU2434115C1
ROLLING DRILLING BIT 2010
  • Butkin Vladimir Dmitrievich
  • Gilev Anatolij Vladimirovich
  • Dogadin Dmitrij Sergeevich
  • Chesnokov Valerij Timofeevich
RU2451151C1
ROLLER-CUTTER DRILLING BIT 2001
  • Butkin V.D.
  • Gilev A.V.
  • Chesnokov V.T.
  • Alimtsev A.N.
  • Gilev R.A.
  • Akhmetov I.U.
  • Evseev V.P.
  • Perelygin L.S.
  • Ivanov M.M.
  • Todinov A.M.
RU2182213C1
CUTTING-SHEARING DRILLING BIT 1999
  • Butkin V.D.
  • Gilev A.V.
  • Revod'Ko A.V.
  • Kurilov A.N.
  • Alimtsev A.N.
RU2178057C2
DRILL DISC BIT OF CHIPPING-CRUSHING TYPE 1998
  • Butkin V.D.
  • Gilev A.V.
  • Alimtsev A.N.
  • Kurilov A.N.
RU2165515C2
ROTARY DRILLING BIT (VERSIONS) 2007
  • Bogomolov Rodion Mikhajlovich
  • Kremlev Vitalij Igorevich
  • Panin Nikolaj Mitrofanovich
RU2334862C1

RU 2 264 521 C1

Authors

Butkin V.D.

Gilev A.V.

Chesnokov V.T.

Gilev R.A.

Nekhoroshev D.B.

Muzol'Kov S.A.

Dates

2005-11-20Published

2004-07-26Filed