Mechanical Structure A rock drilling rig is a device that mounts one or more rock drills along with their propellers onto a specially designed drill arm, equipped with a chassis, for rock drilling operations. The robotic arm is the key structure of the rock drilling rig. The propulsion mechanism typically uses a hydraulic cylinder-wire rope propulsion method, which is simple in structure and low in cost. Modern rock drilling rigs use lightweight aluminum alloy beams, which have high-efficiency bending, torsional, and fatigue resistance. A unique single-layer arrangement of hose reels, combined with a reliable hose clamp structure, effectively improves hose life and reduces maintenance intensity. The drilling system has anti-jamming, anti-dry-firing, and automatic retraction functions.
Technical Parameters: The technical parameters of the single-arm rail-mounted rock drilling rig include: transport dimensions (L×B×H) 7110×920×2050 mm; drilling diameter Φ43～Φ76 mm; drilling depth 2700 mm (standard) 2100 mm (optional); drilling speed 0.8-2 m/min; applicable cross-section (B×H) 2×2～3.5×3.5 mm, etc. The technical parameters of the remote-controlled rock drilling rig include: applicable rock hardness ≤F14; dimensions 1.1 m width, 1.45 m height, 5.8 m length; drilling height ≥2500 mm; diameter >38 mm; depth >2400 mm, etc.
Taking the XCMG XTD295 as an example, its technical parameters include: engine power 140kW, rock drill impact power 18-20kW, drill arm extension stroke 1600mm, drilling depth per pass 5217mm, maximum coverage area 104㎡, and total weight 35 tons.
The technical parameters of different models of rock drilling rigs vary. For example, the XTD2120 has a drill arm extension stroke of 2500mm, while the XTD275 has a drill arm extension stroke of 1250mm.