Views: 0 Author: Site Editor Publish Time: 2025-09-18 Origin: Site
The electrical system of a second-hand rotary drilling rig is the "nerve center" of the equipment's operation, responsible for controlling power, operation and monitoring functions. Aging of the lines, loose joints or failure of protection can easily cause short circuits, signal interruptions and other faults, seriously affecting construction safety and efficiency. Proper line inspection and joint protection are the keys to ensuring the stability of the electrical system. The following are six core maintenance points.
1. Comprehensive inspection of the circuit appearance: Regularly inspect all the electrical circuits of the vehicle (such as power lines and control lines) to see if there is any damage, aging, cracking or wear on the outer skin. If exposed wires are found, they should be promptly wrapped and repaired with insulating tape to prevent short circuits in the conductors.
2. Insulation performance testing of the circuit: Use a multimeter to measure the insulation resistance of the circuit to ensure that the value meets the requirements of the equipment manual (usually no less than 0.5MΩ). Focus on inspecting the circuits in areas prone to moisture such as the engine compartment and under the cab to prevent insulation failure and leakage.
3. Check the tightness of the joints: Inspect each electrical joint (such as sensor joints and controller joints) one by one to ensure they are firmly connected without any looseness. If any signs of loosening are found at the joint, it should be tightened with a wrench to the specified torque to avoid signal interruption or unstable power supply due to poor contact.
4. Waterproof sealing protection for joints: For joints that are exposed to the open air or prone to water ingress (such as chassis circuit joints and electrical joints of hydraulic systems), install waterproof sealing rings or wrap waterproof tape. Regularly clean the dust and oil stains at the joints to prevent impurities from affecting the sealing performance and to avoid rainwater seeping in and causing malfunctions.
5. Special inspection of grounding circuits: Check whether the grounding circuits of the equipment are in good condition, whether the grounding bolts are tightened, and the grounding resistance should be controlled within 4Ω. If the grounding line breaks or is poorly grounded, the wire should be replaced in time and re-tightened to prevent static electricity accumulation or leakage that may cause safety accidents.
6. Compliance arrangement of line routing: Check whether the line layout conforms to the equipment frame and whether there is any friction or interference with moving parts (such as drill pipes, cylinders). For loose or sagging lines, fix them in reasonable positions with cable ties to prevent damage to the lines due to long-term friction.
In conclusion, the maintenance of the electrical system of second-hand rotary drilling RIGS should focus on two core aspects: "line safety" and "reliable joints". Through regular inspections, insulation tests, and sealed protection measures, electrical faults can be effectively reduced. Only by ensuring the stability of the electrical system can we guarantee precise equipment control and effective monitoring, thereby enhancing construction efficiency and operational safety.
