How to carry out load calculation and safety control of ship crane?

Load calculation and safety control of Marine crane are important steps to ensure the safety of lifting operation. The following is the general load calculation and safety control method:

Load calculation:

Cargo quality calculation:

Accurately calculate the quality of the goods to be lifted before carrying out the lifting operation. This can be determined by the weight, size and shape of the goods.

Weight calculation:

For cranes that need to use counterweights, the counterweight calculation is carried out to ensure that the quality and position of the counterweight can balance the center of gravity of the lifting of the goods and maintain the stability of the equipment.

Load distribution of hooks, ropes and counterweights:

In the lifting operation, the load of the hook, rope and counterweight is reasonably distributed to ensure that each component works within its rated load range.

Select the right hook and spreader:

According to the shape and characteristics of the goods, select the appropriate type and specification of hooks and spreaders to ensure that they can safely and effectively lift the goods.

Crane capacity calculation:

Ensure that the rated lifting capacity of the crane is sufficient to meet the needs of lifting cargo. Considering the crane arm length, Angle and other factors, the actual lifting capacity is calculated.

Safety control:

Load limiting system:

Ship cranes are usually equipped with load limiting systems to ensure that the rated load of the equipment is not exceeded during lifting operations. These systems can monitor hook load via sensors and automatically stop or issue warnings when approaching or reaching ji limits.

Safety remote control and monitoring system:

Use a safety remote control system that allows operators to operate from a safe location and monitor equipment status in real time. These systems often have an emergency stop button and sensors to increase safety.

Risk assessment:

Carry out a detailed risk assessment before carrying out a lifting operation. Taking into account environmental factors, weather conditions, operating sites, etc., determine possible risks and take appropriate control measures.

Emergency shutdown procedure:

Develop and train operators to follow emergency shutdown procedures provided by the equipment crane manufacturer. Ensure that in the event of an emergency, the power supply can be quickly cut off and the equipment can be stopped.

Regular maintenance:

Perform regular equipment maintenance to check the status of hooks, ropes, counterweights and other components to ensure that they are intact. Regular maintenance improves device reliability and security.

Operator Training:

Operators must receive professional training to understand the working principle of the equipment, safe operation procedures and emergency handling procedures. Ensure they are able to operate correctly and respond to emergencies.

Regular inspection and monitoring:

Check and monitor the performance and condition of the equipment regularly. Using advanced sensing technology, real-time monitoring hook load, temperature, vibration and other parameters, timely detection of anomalies and take measures.

Through reasonable load calculation and strict safety control measures, the safe and reliable operation of ship crane can be ensured to a large extent.