FIELD: drilling equipment. SUBSTANCE: plates have longitudinal rectangular recesses. Lugs have slots mating recess side walls. Threaded members are made in form of stop screws. Screws are installed square to recess side walls for interaction with their ends with bevelled back surfaces of lugs. EFFECT: extended functional capabilities due to provision of use of different in shape lugs and higher reliability. 4 dwg
Title | Year | Author | Number |
---|---|---|---|
ROLLER CUTTER DRILLING REAMER WITH REPLACEABLE SECTIONS | 2014 |
|
RU2578229C1 |
BIT FOR DRILLING LARGE-DIAMETER HOLES | 0 |
|
SU1617146A1 |
ROLLER-CUTTER DRILLING BIT | 0 |
|
SU1726724A1 |
DETACHABLE ROTARY EXPANDER BIT | 0 |
|
SU583276A1 |
DEMOUNTABLE DRILLING BIT | 2014 |
|
RU2549336C1 |
ROLLER FOR DRILLING LARGE-DIAMETER HOLES | 0 |
|
SU1514940A1 |
ROLLER-CUTTER DRILLING BIT | 0 |
|
SU1745919A1 |
ROLLER-CUTTER CORE DRILL BIT | 1991 |
|
RU2021468C1 |
PLANETARY ROLLER BIT FOR DRILLING LARGE-DIAMETER HOLES | 0 |
|
SU1504341A1 |
DRILL BIT | 0 |
|
SU1810461A1 |
Authors
Dates
1994-10-15—Published
1991-04-08—Filed