Daily maintenance of QU80 crane rails is essential to ensure the safe operation of the crane and extend the service life of the rails. The following are some key points for daily maintenance:
Cleaning and maintenance
Regular cleaning: Use brooms, vacuum cleaners and other tools to regularly remove dust, oil, iron filings and other debris on the surface of the rails to prevent these debris from entering between the crane's running wheels and the rails, aggravating wear or affecting the crane's operating accuracy.
Remove oil stains: For oil stains on the surface of the rails, you can use a special oil stain cleaner to wipe them. Avoid using overly sharp tools to damage the surface of the rails.
Inspect the track surface
Visual inspection: Before and after daily operations, visually inspect the rails to check whether there are defects such as wear, cracks, and deformation on the surface of the rails. Focus on inspecting the head, side, and welds of the rails, which are prone to problems.
Measure wear: Use calipers, thickness gauges and other tools to measure the key dimensions of the rails, such as rail head width and rail waist thickness, regularly (such as monthly or quarterly), and compare them with the original dimensions to calculate the amount of wear. When the amount of wear exceeds the specified value, timely measures should be taken to repair or replace it.
Inspection of track connection parts
Inspection of fastening bolts: Check whether the connecting bolts of the rails are loose. If they are loose, they should be tightened in time with a torque wrench according to the specified torque value. At the same time, check whether the bolts are damaged or deformed, and replace them in time if necessary.
Inspection of fishplate: Check the fit between the fishplate and the rails, and whether there are gaps or misalignments. If the fishplate is worn, deformed or cracked, it should be replaced in time to ensure the tightness and stability of the rail connection.
Lubrication and rust prevention
Lubrication: Regularly apply an appropriate amount of special rail grease on the surface of the rails to reduce the friction between the crane's running wheels and the rails, reduce wear, and also help improve the stability of the crane's operation. The grease application cycle can be determined according to the frequency of use of the crane and the working environment, generally once every 1-2 weeks.
Rust prevention: For slight rust on the surface of the rail, you can use sandpaper or wire brush to polish and remove rust, and then apply anti-rust paint or anti-rust oil for protection. If the rust is serious, professional rust removal measures should be taken in time, and repair work such as welding and polishing should be carried out.
Foundation inspection
Check the track foundation: Check whether the track foundation has subsidence, cracking, etc. You can set up settlement observation points on the track foundation and measure the settlement data regularly. If uneven settlement of the foundation is found, it should be adjusted and repaired in time.
Check the pads and pressure plates: Check whether the pads are loose or displaced, and whether the pressure plates firmly press the rails. If there are any problems, adjust the position of the pads in time, tighten the pressure plate bolts, and ensure that the connection between the rails and the foundation is stable.
In the daily maintenance of the QU80 crane rails, it is necessary to strictly follow the relevant maintenance standards and operating procedures, and deal with problems in time to ensure that the rails are in good working condition and ensure the safe operation of the crane.