Ports and terminals are an important foundation for the efficient operation of global trade. Their special operating environment and high-intensity operating requirements put forward strict requirements on the performance, installation and maintenance of crane rails.
In ports and terminals, rail-mounted container gantry cranes, quay cranes and other equipment rely on rails to achieve precise positioning and efficient operation. Cranes need to frequently lift containers weighing dozens of tons. Rails must not only withstand huge vertical loads, but also cope with the strong horizontal inertia generated when the equipment is started and braked. At the same time, the humid and high-salt air environment of the port is prone to corrosion of rails, which requires rails to have high strength, high wear resistance and good corrosion resistance.
For this reason, ports mostly use QU series special rails for cranes. The unique head design of this series of rails can fit closely with the crane wheels, effectively disperse the load and reduce wear; the high-strength material enables it to withstand heavy-load operations and extend its service life. Some terminals also use rails with special anti-corrosion treatment on the surface, such as hot-dip galvanized rails. By forming a dense galvanized layer on the surface of the rails, the corrosion resistance is enhanced to adapt to the harsh environmental conditions of the port.
| Rail Type | SIZE(mm) | theoretical weight | |||||||||
| height | bottom width | head width | waist depth | ||||||||
| Crane rail | QU70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| QU80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| QU120 | 170 | 170 | 120 | 44 | 118.1 | ||||||
The installation accuracy of the rails directly affects the efficiency and safety of port operations. During installation, the gauge, straightness and horizontality must be strictly controlled, and high-precision measuring instruments must be used to ensure that the error is within a very small range. At the same time, the use of special elastic pads and fastening devices can not only buffer the vibration during the operation of the crane, but also prevent the rails from loosening and shifting due to frequent force.
Daily maintenance is particularly critical in the port environment. It is necessary to regularly check the wear and corrosion of the rails, clean the salt and debris attached to the rail surface in time, repair or replace the severely worn or corroded parts; tighten the connectors to prevent loosening, ensure that the rails are always in good working condition, and help the port terminal to efficiently and safely complete the container loading and unloading and transshipment tasks.