FIELD: mining.
SUBSTANCE: group of inventions relates to units of a bit replacement device and a mining machine. Bit replacement device assembly comprises drill bit screwing and unscrewing device actuator unit configured to be connected to drilling rig, and rotary magazine of bits, made with possibility of connection with drilling rig so that drill bit car can rotate and move along vertical relative to drilling rig. Drill bit screwing and unscrewing device actuator unit includes a bit screwing and unscrewing device and an actuator, which moves device for screwing and unscrewing of bit.
EFFECT: technical result consists in improvement of efficiency of replacement of drilling bit.
20 cl, 20 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2797965C2 |
| DRILLING RIG | 2021 |
|
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| DRILLING TOOL SCREWING ON/OFF DEVICE | 0 |
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SU1492012A1 |
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| DRILLING RIG | 0 |
|
SU1046467A1 |
