YK vibrating screens are essential screening equipment in industries such as mining, building materials, and chemicals. Their operational stability and service life are directly related to the efficiency and cost of the entire production line. A sound daily maintenance and care plan is key to ensuring the long-term, efficient operation of YK vibrating screens and extending their service life. This article will provide a detailed breakdown of the key points for daily maintenance of YK vibrating screens, helping you reduce costs and increase efficiency.
I. Daily Operation: Golden Rules Before Startup, During Operation, and After Shutdown
1. Pre-Startup Inspection (Preventing Problems Before They Happen)
◦ Fastener Inspection: Focus on inspecting all bolts on the vibration motor base, screen frame connections, and support devices for looseness. Tighten any loose bolts immediately. This is the first step in preventing structural damage.
◦ Screen Condition: Check the screen for tension, damage, or blockage. Damaged screens can affect screening accuracy and require prompt replacement.
◦ Cleaning and Obstruction Control: Clear any residual material from the screen surface and interior. Ensure that there are no tools or other obstructions inside or around the equipment to prevent collisions after startup. ◦ Vibration Motor Inspection: Check the motor cable for integrity and dust accumulation on the surface that could affect heat dissipation.
2. Monitoring During Operation (Listen, Look, Touch, and Smell)
◦ Listen: During normal operation, a steady humming sound should be heard. If any unusual banging or sharp noises are heard, the machine should be stopped immediately for inspection.
◦ Observe Operation: Observe the smooth operation of the screen box and any abnormal oscillation. Check the even flow of material across the screen surface and for any accumulation or deviation.
◦ Check Temperature: Regularly feel the bearing area of the vibration motor housing with the back of your hand. If it feels hot (usually over 70°C), the bearing may be lacking oil or damaged, requiring shutdown and attention.
◦ Smell: Watch for any odor of burning rubber (screen) or motor insulation varnish, which is a key precursor to equipment failure.
3. Post-Shutdown Maintenance (Perfect from Beginning to End)
◦ Thorough Cleaning: After shutting down the machine, wait until the machine is completely still and promptly clean the screen surface and inside the screen body to prevent material from compacting and corroding the equipment.
◦ Keep good records: Keep a brief record of the operating status, any abnormalities detected, and the corrective actions taken during the shift to facilitate follow-up and maintenance.
II. Regular Maintenance: Deep care is the key to extending the lifespan of the equipment.
1. Lubrication and Maintenance (the "blood" of the equipment)
◦ Grease Selection: Strictly follow the equipment manual and select a suitable high-quality lubricant, such as lithium-based grease.
◦ Lubrication Interval: Lubrication of the vibration motor's bearings is crucial. Generally, relubricate every 500-800 hours of operation, using a volume that should be 1/3-1/2 of the bearing cavity volume. Avoid excessive grease, as this will cause the motor to overheat. Thoroughly clean and replace the grease at least once a year.
2. Regular Inspection and Replacement of Wear Parts
◦ Screen: Regularly replace according to wear and damage. Selecting high-quality screens and properly tensioning them can effectively extend their lifespan.
◦ Seals and Springs: Regularly inspect rubber seals for aging and damage. Inspect shock absorber springs for cracks or permanent deformation. If any problems are present, replace them promptly to maintain equipment balance.
3. Maintenance During Long-Term Downtime
◦ If the equipment needs to be idle for an extended period, thoroughly clean the interior and exterior, and relubricate key components such as the motor bearings to prevent rust.
◦ Place the equipment in a dry, ventilated room and cover it with a dust cover.
Daily maintenance and care for your YK vibrating screen is an investment that pays off. By establishing and strictly enforcing these procedures, you can not only significantly reduce unplanned equipment downtime but also effectively extend its service life by several years, significantly saving repair and replacement costs and laying a solid foundation for stable production and sustained profitability.
