UA29749A - Method for extraction of pin of ball retainer of three-roller-cutter bit - Google Patents

Method for extraction of pin of ball retainer of three-roller-cutter bit

Info

Publication number
UA29749A
UA29749A UA97041957A UA97041957A UA29749A UA 29749 A UA29749 A UA 29749A UA 97041957 A UA97041957 A UA 97041957A UA 97041957 A UA97041957 A UA 97041957A UA 29749 A UA29749 A UA 29749A
Authority
UA
Ukraine
Prior art keywords
pin
extraction
rod
roller
cutter bit
Prior art date
Application number
UA97041957A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Ромуальд Донатович Мартулевіч
Ромуальд Донатович Мартулевич
Original Assignee
Ромуальд Донатович Мартулевіч
Ромуальд Донатович Мартулевич
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 Ромуальд Донатович Мартулевіч, Ромуальд Донатович Мартулевич filed Critical Ромуальд Донатович Мартулевіч
Priority to UA97041957A priority Critical patent/UA29749A/en
Publication of UA29749A publication Critical patent/UA29749A/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

Method for extraction of pin of ball lock of three-roller-cutter bit includes drilling of pin scalding with cutting thread in pin element, with screwing threaded element to the thread, this has support nut forming extraction force. One drills pin scalding together with its head, till baring the rod. Threading is cut directly on the rod. At that one uses extraction unit of type of pipe screw die – billet. The appliance is screwed on the rod simultaneously with making threading on the rod with it, and the pin is extracted together with the appliance.
UA97041957A 1997-04-23 1997-04-23 Method for extraction of pin of ball retainer of three-roller-cutter bit UA29749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
UA97041957A UA29749A (en) 1997-04-23 1997-04-23 Method for extraction of pin of ball retainer of three-roller-cutter bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
UA97041957A UA29749A (en) 1997-04-23 1997-04-23 Method for extraction of pin of ball retainer of three-roller-cutter bit

Publications (1)

Publication Number Publication Date
UA29749A true UA29749A (en) 2000-11-15

Family

ID=74195532

Family Applications (1)

Application Number Title Priority Date Filing Date
UA97041957A UA29749A (en) 1997-04-23 1997-04-23 Method for extraction of pin of ball retainer of three-roller-cutter bit

Country Status (1)

Country Link
UA (1) UA29749A (en)

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