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 bitInfo
- 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
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.
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) |
-
1997
- 1997-04-23 UA UA97041957A patent/UA29749A/en unknown
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