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Frequently Asked Questions
How to select the right bucket for different geological conditions?
For soil/soft rock layers, use a double-bottom sand-sucking bucket. For cobblestones or moderately weathered rock, a rock-embedded double-bottom or double-layer cylinder drill is preferred. Hard rock breaking requires a combination of cylinder drill circular cutting and rock-embedded spiral drill bits.
What operations are most harmful to bucket service life?
Dropping and impacting rocks with the bucket causes cracking at connections. Prying objects with the back plate exerts excessive pressure on bucket teeth. Using slewing force to hit objects also damages side plates, pin shafts, and frames.
How to prevent hole collapse during rotary drilling?
Maintain a stable mud liquid level to support the hole wall. Address bubbles or slurry seepage around the casing immediately. During shutdowns, ensure the rig is parked on solid, flat ground away from slopes.
How to extend the life of handling equipment in mining scenarios?
Clean hydraulic valve groups daily to prevent dust jamming and select wear-resistant steel wire ropes. Strictly avoid oblique pulling during hoisting to prevent structural deformation from center of gravity shifts.
What are the risks of overloading mobile handling equipment?
Overloading by just 10% can reduce the fatigue life of steel structures by 50%. Oblique pulling increases lateral forces on tracks significantly, leading to potential deformation.
How to prevent cracking in welded parts?
Regularly inspect welds on the back plate and hinge shafts. Avoid overloaded prying. For initial cracks, use low-hydrogen electrodes for repair welding and reinforce stress concentration points.