In daily use, bridge cranes must undergo regular hazard inspections to ensure the safe operation of the equipment. The following is a detailed guide for identifying potential hazards in bridge cranes:
1. Daily inspection
1.1 Equipment appearance
Inspect the overall appearance of the crane to ensure there is no obvious damage or deformation.
Inspect structural components (such as main beams, end beams, support columns, etc.) for cracks, corrosion, or weld cracking.
1.2 Lifting Appliances and Wire Ropes
Check the wear of the hooks and lifting equipment to ensure there is no excessive wear or deformation.
Check the wear, breakage, and lubrication of the steel wire rope to ensure that there is no severe wear or breakage.
1.3 Running track
Check the straightness and fixation of the track to ensure that it is not loose, deformed, or severely worn.
Clean up debris on the track and ensure that there are no obstacles on the track.
2. Mechanical system inspection
2.1 Lifting mechanism
Check the brake, winch, and pulley group of the lifting mechanism to ensure that they operate normally and are well lubricated.
Check the wear of the brake to ensure its effectiveness.
2.2 Transmission system
Check the gears, chains, and belts in the transmission system to ensure that there is no excessive wear or looseness.
Ensure that the transmission system is well lubricated and free from any abnormal noises or vibrations.
2.3 Trolley and Bridge
Check the operation of the lifting trolley and bridge to ensure smooth movement and no jamming.
Check the wear of the guide wheels and tracks of the car and bridge to ensure there is no severe wear.
3. Electrical system inspection
3.1 Electrical equipment
Inspect electrical equipment such as control cabinets, motors, and frequency converters to ensure they are working properly without any abnormal heating or odor.
Check the cable and wiring to ensure that the cable is not damaged, aged, or loose.
3.2 Control system
Test the various functions of the control system to ensure that the lifting, lateral, and longitudinal operations of the overhead crane are normal.
Check the limit switches and emergency stop devices to ensure they are working properly.
4. Safety device inspection
4.1 Overload protection
Check the overload protection device to ensure that it can effectively activate and issue an alarm when overloaded.
4.2 Anti collision device
Check the anti-collision device and limit device to ensure that they can effectively prevent crane collisions and overstepping.
4.3 Emergency braking
Test the emergency braking system to ensure that it can quickly stop the operation of the crane in emergency situations.
Post time: Jun-27-2024
