Improper operation is the main cause of lifting accidents.

Improper operation is the main cause of lifting accidents, including rope tripping accidents, unhooking accidents, rope breaking accidents and hook breaking accidents.

First, the rope accident

During the hoisting process of hoisting machinery, due to careless operation or broken lifting rope, heavy objects fall off the lifting rope, resulting in casualties and property losses. Incorrect binding method, aging or quality problems of hanging rope, operator's error, etc.

Second, the decoupling accident

During lifting, the heavy objects, lifting ropes or special slings are not effectively fixed on the hook, resulting in the loss of heavy objects. The hook is not firmly connected with the lifting rope, and the operator fails to operate according to the regulations, resulting in quality problems of the hook.

Three, broken rope accident

Due to overload, overwinding, cable-stayed and other reasons, the wire rope breaks during work, resulting in the loss of heavy objects and potential personal injury. The lifting capacity exceeds the mechanical bearing capacity, the lifting limit switch fails, and the operator does not comply with the safety regulations.

Four, hook fracture accident

Due to the improper quality or use of the hook itself, the hook is broken and the weight is lost. Hook manufacturing defects, long-term use fatigue fracture, strong impact during operation, etc.

Safety points and environmental factors of lifting operation

First, the safety points of lifting operation

1, operating procedures and training

The hoisting operation must follow strict safety operation rules to ensure that the operators are professionally trained and familiar with mechanical properties, hoisting methods and safety precautions. Training includes not only basic operations, but also emergency handling and safety identification.

2, equipment maintenance and maintenance

Lifting machinery should be maintained regularly to ensure its stable performance, safety and reliability. Maintenance should include checking the wear and tear of various parts of the machine, the state of fasteners, lubrication, etc. , and deal with the problems found in time. Operators should have basic equipment inspection and maintenance capabilities.

Second, the environmental factors in hoisting operation

1, weather conditions

When hoisting, pay attention to weather conditions, such as wind speed, rain and snow. When the wind speed is too high, the operation should be stopped to avoid potential safety hazards.

2. Ground conditions

Before lifting operation, the ground should be evaluated to ensure that the ground is solid and flat, and to prevent the lifting machinery from overturning due to soft ground. Under special ground conditions, such as swamps and soft soil, corresponding measures should be taken to reinforce or avoid operations.

3. Surrounding environment

When hoisting, the influence of surrounding environment, such as buildings, wires and pipelines, should be considered. On-site investigation should be conducted before operation, and corresponding safety measures should be formulated to avoid conflicts with the surrounding environment.