SU1836868A3 - Percussive hole widener - Google Patents

Percussive hole widener

Info

Publication number
SU1836868A3
SU1836868A3 SU4870032/03A SU4870032A SU1836868A3 SU 1836868 A3 SU1836868 A3 SU 1836868A3 SU 4870032/03 A SU4870032/03 A SU 4870032/03A SU 4870032 A SU4870032 A SU 4870032A SU 1836868 A3 SU1836868 A3 SU 1836868A3
Authority
SU
USSR - Soviet Union
Prior art keywords
hole
widener
rock cutting
percussive
spring
Prior art date
Application number
SU4870032/03A
Other languages
Russian (ru)
Inventor
А.Е. Соркин
Ю.А. Самойлов
М.С. Рогач
Ф.Ф. Фальшин
В.И. Подгорный
В.А. Макеев
В.Д. Лысенко
В.А. Коршков
В.П. Бойко
Original Assignee
Соркин Анатолий Егорович
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 Соркин Анатолий Егорович filed Critical Соркин Анатолий Егорович
Priority to SU4870032/03A priority Critical patent/SU1836868A3/en
Application granted granted Critical
Publication of SU1836868A3 publication Critical patent/SU1836868A3/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

FIELD: hole drilling. SUBSTANCE: percussive hole widener has body with upper and lower adapters. Accommodated in body is spring- loaded piston and striker. Hinged to body are extending rock cutting member interacting with wedge connected with spring-loaded piston. Installed in lower adapter for axial motion is anvil to which pilot-bit is secured. Widener has additional piston installed above main spring-loaded piston. Wedge is made with shoulders interacting with tail of rock cutting member. During drilling pilot hole, anvil is moved to upper position and blocks rock cutting members from extension. EFFECT: higher efficiency. 1 dwg
SU4870032/03A 1990-09-26 1990-09-26 Percussive hole widener SU1836868A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4870032/03A SU1836868A3 (en) 1990-09-26 1990-09-26 Percussive hole widener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4870032/03A SU1836868A3 (en) 1990-09-26 1990-09-26 Percussive hole widener

Publications (1)

Publication Number Publication Date
SU1836868A3 true SU1836868A3 (en) 1995-03-10

Family

ID=60537510

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4870032/03A SU1836868A3 (en) 1990-09-26 1990-09-26 Percussive hole widener

Country Status (1)

Country Link
SU (1) SU1836868A3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2719880C1 (en) * 2019-12-09 2020-04-23 Публичное акционерное общество "Татнефть" имени В.Д. Шашина Expander for simultaneous drilling and expansion on casing string
RU2751906C1 (en) * 2021-01-26 2021-07-20 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Reamer for guided drilling and casing expansion
RU211044U1 (en) * 2021-12-03 2022-05-18 Общество с ограниченной ответственностью "Перекрыватель" Wellbore reamer for profile cap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2719880C1 (en) * 2019-12-09 2020-04-23 Публичное акционерное общество "Татнефть" имени В.Д. Шашина Expander for simultaneous drilling and expansion on casing string
RU2751906C1 (en) * 2021-01-26 2021-07-20 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Reamer for guided drilling and casing expansion
RU211044U1 (en) * 2021-12-03 2022-05-18 Общество с ограниченной ответственностью "Перекрыватель" Wellbore reamer for profile cap

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