How to Extend the Service Life of Underground Scrapers

2025-10-31 16:04:41

       To extend the service life of underground scrapers, a combination of proper maintenance, operational practices, and equipment selection is essential. Here are some strategies based on recent studies and expert advice:
       1. Regular Maintenance
       Lubrication: Proper lubrication is crucial for extending the life of key components such as the power module and gearbox. Perform the first fluid change after two weeks of use, and then change the oil every 2,500 hours of service. This would be every four months if the equipment runs 24/7.
       Clean and Inspect: Regularly clean and inspect the scraper to identify and address potential issues early. This includes checking for wear, damage, and contamination in critical components.
       2. Optimize Scraper Settings
       Adjust Tension: Ensure that the scraper tension or load on the belt is correctly adjusted. Too much tension can increase belt wear and drive friction, while too little can leave material on the belt.
       Alignment: Proper alignment of transfer chutes and rock boxes over the belt is crucial. Material should be deposited into the center of the belt to extend the life of the belt and idlers.

       3. Preventive Measures
       Sealing and Protection: Use sealed connectors to maintain lubrication and prevent the ingress of pollutants. This can prolong the lives of articulated pins and bushings for the bucket and boom, reducing maintenance costs.
       Wear-Resistant Linings: Apply wear-resistant linings in areas prone to wear to reduce repair costs and extend the life of the scraper.
       4. Operational Practices
       Proper Operation: Avoid pushing the scraper beyond its limits. Follow operational guidelines to ensure safe and efficient use. For example, in loose sand conditions, a “pumping action” with successive deep cuts may be necessary.
       Environmental Awareness: Be aware of the working environment and comply with all local, OSHA, and MSHA rules. Ensure underground utilities are properly located before starting operations.
       5. Equipment Selection
       High-Quality Components: Choose high-strength alloy steel for the frame and critical components to ensure excellent fatigue resistance and low-temperature impact toughness.
       Innovative Design: Opt for equipment with advanced features such as computer-aided design and finite element analysis to guarantee mechanism strength.
       By following these strategies, you can significantly extend the service life of underground scrapers, ensuring more reliable and cost-effective operations.