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2 631 948

(13)

(51)

IPC

E21B10/10(2006-01-01)

E21B10/12(2006-01-01)

E21B10/16(2006-01-01)

(21) (22)

Application

2016129831, 2016-07-20

(24)

Start date

2016-07-20

(22)

Actual filing date

2016-07-20

(45)

Published

2017-09-29

(72)

Inventor

Bovin Konstantin AnatolevichGilev Anatolij VladimirovichChenokov Valerij TimofeevichBelozerov Ilya RomanovichShigin Andrej OlegovichKrylo Andrej Evgenevich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Federalnyj Universitet"

DRILLING BIT OF CUTTING AND ROTATING TYPE Russian patent published in 2017 - IPC E21B10/10 E21B10/12 E21B10/16

Abstract RU 2631948 C1

FIELD: mining engineering.

SUBSTANCE: drill bit of the cutting and rotating type contains a body with a nipple and purging channels, cutting elements with two rows of hard-alloy inserts. Cutting elements are made with rotation angle towards rotation direction by 10°, with two different diameters of inserts determined by specific ratio depending on the disk element width and inclination angle of hard-alloy teeth within 30-50°.

EFFECT: bit operating efficiency improvement.

1 tbl, 3 dwg

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RU 2 631 948 C1

Authors

Bovin Konstantin Anatolevich

Gilev Anatolij Vladimirovich

Chenokov Valerij Timofeevich

Belozerov Ilya Romanovich

Shigin Andrej Olegovich

Krylo Andrej Evgenevich

Dates

2017-09-29—Published

2016-07-20—Filed