EN
As an important equipment used in mining and construction projects, blasting drills often bear high-intensity loads during their working process, so faults often occur during their use. The following are common faults of blasting drills and their solutions:
1.Difficult to start or unable to start
Reason:
Battery power is low or battery is aging.
There is a problem with the starting circuit, such as poor contact of the relay.
Starter motor failure, poor cable contact.
Insufficient oil pressure, unable to provide sufficient power at start-up.
Solution:
Check the battery power and replace the battery if necessary.
Check the circuit to ensure that the relay and contactor in the starting circuit are good, and repair the problem of poor circuit contact.
Test and replace the starting motor, and check the motor wiring.
Check the hydraulic system oil level to ensure that the oil pump is operating normally, and refuel or repair the hydraulic system if necessary.
2.Hydraulic system failure
Reason:
Hydraulic oil contamination causes the hydraulic pump or hydraulic valve to get stuck.
Hydraulic oil leakage causes insufficient oil pressure.
The hydraulic pump is damaged and cannot provide enough pressure.
The hydraulic pipeline is aged, causing oil leakage.
Solution:
Replace the hydraulic oil regularly to keep the hydraulic oil clean and avoid oil contamination.
Check all pipe joints in the hydraulic system to ensure that there is no oil leakage.
Check the working condition of the hydraulic pump and repair or replace it if necessary.
Check all hydraulic pipelines and replace aged or damaged parts if necessary.
3.The drill bit is stuck
Cause:
Drilling into hard rock formations or encountering irregular rock structures.
The drilling speed is too fast, resulting in excessive load on the drill bit.
The connection between the drill rod and the drill bit is loose.
Solution:
When stuck, slow down the drilling speed and lift the drill bit in time for repeated drilling.
Check the drill bit and drill rod connection parts regularly to ensure reliable tightening.
When the drill is stuck, stop drilling and use mechanical equipment to unblock the drill bit.
4. Excessive vibration
Reason:
The drill rod or drill bit is seriously worn, resulting in uneven force.
The drilling rig foundation is unstable or unevenly installed, resulting in increased vibration.
Improper pressure adjustment of the hydraulic system causes mechanical vibration.
Solution:
Check the drill bit and drill rod regularly and replace worn parts in time.
Ensure that the drilling rig is installed on a stable foundation, and reinforce or reinstall the foundation if necessary.
Check the hydraulic system pressure setting and adjust the hydraulic system parameters.
5.Electrical system failure
Reason:
Poor circuit contact causes the equipment to fail to operate normally.
Cable damage or disconnection causes signal transmission interruption.
Control panel failure and cannot operate normally.
Solution:
Check the electrical system regularly to ensure that the wiring is correct and not loose.
Replace damaged cables or connectors.
Check the control panel to ensure that the control components are working properly and replace or repair them if necessary.
6.Pneumatic system failure
Reason:
Insufficient compressed air supply or clogged air filter.
Air pipe leakage causes air pressure drop.
The pneumatic valve is faulty and cannot regulate the airflow normally.
Solution:
Check the air supply system to ensure that the compressor is working properly and the filter is cleaned or replaced in time.
Check the air pipeline to ensure that there is no leakage and repair the leakage point.
Check the pneumatic valve and pneumatic components and replace or repair them if necessary.
7.Lubrication system problem
Reason:
Insufficient lubricating oil or deterioration of lubricating oil.
The lubrication pump is faulty and cannot provide sufficient lubrication pressure.
The lubrication pipeline is blocked or leaking.
Solution:
Check the lubricating oil level regularly and replenish or replace the lubricating oil in time.
Check the working status of the lubrication pump and repair or replace it if necessary.
Check the lubrication pipeline to ensure that there is no blockage and leakage.
8.Equipment overheating
Reason:
Long-term high-load operation causes the internal temperature of the equipment to be too high.
The cooling system fails, resulting in poor heat dissipation.
The viscosity of the lubricating oil is too high, resulting in increased friction.
Solution:
When working under high load, stop the machine regularly to let the equipment dissipate heat.
Check the cooling system to ensure that the cooling water flows smoothly and clean the radiator.
Use lubricating oil of appropriate viscosity to avoid the performance degradation of the oil due to high temperature.
9.Control system failure
Reason:
The control panel displays an error or does not respond.
The PLC program fails or the control signal is lost.
The sensor failure causes the inability to obtain normal data.
Solution:
Check the control panel to confirm whether there is a power supply or wiring problem.
Restart the PLC system, check the program and troubleshoot.
Check the sensor and its circuit, and replace the damaged sensor if necessary.
Most of the solutions to these common faults can be avoided through regular maintenance and inspection, and timely repair of damaged parts. For heavy machinery such as blasting drills, preventive maintenance and operating specifications are the key to ensuring long-term and stable operation of the equipment.
