SU1538579A1 - DRILL BIT BALLER - Google Patents

DRILL BIT BALLER

Info

Publication number
SU1538579A1
SU1538579A1 SU4326097/03A SU4326097A SU1538579A1 SU 1538579 A1 SU1538579 A1 SU 1538579A1 SU 4326097/03 A SU4326097/03 A SU 4326097/03A SU 4326097 A SU4326097 A SU 4326097A SU 1538579 A1 SU1538579 A1 SU 1538579A1
Authority
SU
USSR - Soviet Union
Prior art keywords
spherical
drill bit
main
carbide inserts
working part
Prior art date
Application number
SU4326097/03A
Other languages
Russian (ru)
Inventor
Ю.А. Павлов
Original Assignee
Институт горного дела
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт горного дела filed Critical Институт горного дела
Priority to SU4326097/03A priority Critical patent/SU1538579A1/en
Application granted granted Critical
Publication of SU1538579A1 publication Critical patent/SU1538579A1/en

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  • Earth Drilling (AREA)
  • Drilling Tools (AREA)

Abstract

Шарошка бурового долота, содержащая корпус и твердосплавные вставки с рабочей частью из двух поверхностей, одна из которых сферическая, установленные в корпусе со смещением вершины рабочей части в сторону, обратную вращению шарошки, отличающаяся тем, что, с целью повышения производительности бурения путем увеличения прочности и эффективности работы твердосплавных вставок, другая поверхность рабочей части выполнена в виде дополнительной сферической поверхности, сопряженной с основной сферической поверхностью, причем центры основной и дополнительной сферической поверхности расположены друг под другом и на одинаковом расстоянии от оси вставки, а их радиусы связаны соотношениемr≥ d/2 ≥ r,где r- радиус дополнительной сферической части, мм;r- радиус основной сферической части, мм;d - диаметр твердосплавной вставки, мм.A drill bit cone containing a body and carbide inserts with a working part of two surfaces, one of which is spherical, installed in the body with the top of the working part shifted to the side opposite to the rotation of the roller cutter, characterized in that, in order to increase drilling performance by increasing strength and the efficiency of carbide inserts, the other surface of the working part is made in the form of an additional spherical surface mating with the main spherical surface, with the centers of the main The additional spherical surface is located under each other and at the same distance from the axis of the insert, and their radii are related by the relation r≥ d / 2 ≥ r, where r is the radius of the additional spherical part, mm; r is the radius of the main spherical part, mm; d is the diameter of carbide inserts, mm.

SU4326097/03A 1987-07-21 1987-07-21 DRILL BIT BALLER SU1538579A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4326097/03A SU1538579A1 (en) 1987-07-21 1987-07-21 DRILL BIT BALLER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4326097/03A SU1538579A1 (en) 1987-07-21 1987-07-21 DRILL BIT BALLER

Publications (1)

Publication Number Publication Date
SU1538579A1 true SU1538579A1 (en) 2000-05-27

Family

ID=60527218

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4326097/03A SU1538579A1 (en) 1987-07-21 1987-07-21 DRILL BIT BALLER

Country Status (1)

Country Link
SU (1) SU1538579A1 (en)

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