In industrial plants, warehouses and other places, bridge cranes have become important equipment for production operations with their efficient material lifting capabilities, and crane rails, as the basic carrier of their operation, play a key role in the stable operation of the equipment.
Crane rails provide guidance and support for the operation of the trolley and car of the bridge crane. When the bridge crane is lifting heavy objects, the rails need to bear the vertical load of heavy objects, the horizontal inertia force and the impact force during operation. For example, in a machining workshop, when the bridge crane is lifting heavy machine tool parts, the rails must ensure the smooth operation of the crane to avoid affecting the lifting accuracy and safety due to rail problems.
Among the common types of crane rails, the QU series rails have a unique head design that fits tightly with the crane wheels, can effectively disperse the load and reduce wear, and are suitable for bridge cranes with large lifting weights and frequent use; the P series railway rails have a lower cost and are often used for simple bridge cranes with small lifting weights and slow running speeds. In addition, customized special rails will be selected under special working conditions to meet higher load-bearing and wear-resistant requirements.
| Rail Type | SIZE(mm) | ||||||||
| height | bottom width | head width | waist depth | ||||||
| Light rail | 8KG | 65 | 54 | 25 | 7 | ||||
| 9KG | 63.5 | 63.5 | 32.1 | 5.9 | |||||
| 12KG | 69.85 | 69.85 | 38.1 | 7.54 | |||||
| 15KG | 79.37 | 79.37 | 42.86 | 8.33 | |||||
| 18KG | 90 | 90 | 40 | 10 | |||||
| 22KG | 93.66 | 93.66 | 50.8 | 10.72 | |||||
| 24KG | 107 | 90 | 51 | 10.9 | |||||
| 30KG | 107.95 | 109.95 | 60.33 | 12.3 | |||||
| Crane rail | QU70 | 120 | 120 | 70 | 28 | ||||
| QU80 | 130 | 130 | 80 | 32 | |||||
| QU100 | 150 | 150 | 100 | 38 | |||||
| QU120 | 170 | 170 | 120 | 44 | |||||
The installation accuracy of the rails directly affects the operating performance of the bridge crane. During the installation process, the straightness, horizontality and gauge of the rails must be strictly controlled, and the rails must be firmly fixed to the steel beams or track beams of the factory building using connectors such as pressure plates and bolts. At the same time, the temperature expansion joints should be reasonably set to prevent the rails from expanding and contracting due to changes in ambient temperature. The rail joints need to be polished and smooth to ensure a smooth transition when the crane wheels pass through and reduce the impact of vibration on the equipment.
Daily maintenance is essential to extend the service life of the rails. Regularly check the wear of the rails and the tightness of the connectors, clean up the oil, iron filings and other debris on the rails in a timely manner, and repair or replace the rails that are worn beyond the limit in a timely manner. Through scientific maintenance, ensure that the crane rails are always in good condition and ensure efficient and safe operation of the bridge crane.