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KG open-air DTH drill rig
KG920A semi-hydraulic medium wind pressure open-air crawler drilling rig
introduction and Parameter:
KG920A type open-air drill rig on the basis of KY125 drilling rig, optimize and upgrade the gas circuit system, hydraulic system, drill arm parts, walking components, climbing ability is stronger, more reasonable drilling Angle,faster rotation speed and advancing speed,longer motor service life,better reliability.
| KG920A Open-air drilling rig technical parameters: | ||||||
|---|---|---|---|---|---|---|
| Rock hardness | f=6-20 | Weight | 4000kg | |||
| Drilling diameter | φ80-115mm | Carriage elevation angle | bow 135°upward 5°total145° | |||
| Economic drill deep | 25m | Carriage swing angle | lift 100° right 45°total145° | |||
| Rotating speed | 0-70r/min | Drill arm elevation angle | bow 50°upward 25°total75 | |||
| Rotating torque | 1400N.m | Drill arm swing angle | lift 44° right 45°total89° | |||
| Lifting power | 15000N | Carriage compensation | 900mm | |||
| Propulsion mode | cylinder-chain | Power | YC2108(33kW 2200r/min) | |||
| Feeding stroke | 3000mm | Drill rod | φ64x3000mm | |||
| Gradeability | 30° | Working Pressure | 1.0-1.7Mpa | |||
| Ground clearance | 290mm | Capacity | 9-16m³/min | |||
| Improvement comparison | |||
|---|---|---|---|
| KG920A | KY125 | Notes | |
| Walking components | motor+gear reducer structure | Steel motor direct | Reduce the motor pressure, improve motor lifetime |
| Walking pressure | 11MPa | 14-16MPa | |
| Drill arm components | new drill arm | Horizontal, vertical hole at the same time;Horizontal hole height is low | |
| Hydraulic system | 30 pump; Drift diameter new valve group; New diverter valve, using new type of joint. | 19.2pump | Increasing traffic,reduce drag,neat appearance |
| Air course system | movable valve type shock valve | spherical valve | well operation |
| Rotating speed | 83r/min(diesel 1700r/min) 107r/min(diesel 2200r/min) | 55r/min(1700r/min) | improve 50% |
| Fltting speed | 450mm/s | 336mm/s | improve 33% |