How is a single-beam bridge crane used under complex working conditions

Under complex working conditions, the use of single-beam bridge cranes should start with three stages: pre-operation inspection, in-operation standardization, and post-operation maintenance. Specific measures should be taken based on the characteristics of specific working conditions to ensure safe and efficient operation. The following are specific points for use:

1. Pre-operation check: Ensure that the equipment is in a safe state

Inspection of key components

Hanging hooks, steel wire ropes, and lifting gear: Inspect for any damage, wear, or aging. When the wear or corrosion of the steel wire rope reaches 40% of its original diameter, it must be replaced.

Electrical system: Inspect the functionality of the power supply, control panel, buttons, and safety devices to ensure there are no risks of electrical leakage or short circuits.

Braking system: Test the sensitivity of the brakes to prevent slipping or malfunction. The tension of the brake springs needs to be adjusted regularly.

Track and wheel frame: Clear foreign objects from the track, check the integrity of the wheel frame, and avoid instability of the crane caused by uneven track.

Load limit confirmation

Determine the maximum lifting capacity of the crane to prevent overload operations. For instance, a 5-ton single-beam crane should not lift items weighing more than 5 tons.

Check the load distribution to ensure even weight distribution and avoid the impact of unbalanced loads on stability.

Work environment assessment

Space barriers: Ensure that there are no other equipment, buildings, or other obstacles within the work area to avoid collisions.

Wind impact: In environments with strong winds (such as open-air workshops), it is necessary to assess the impact of wind on lifting objects. If necessary, operations should be suspended or fixed measures should be taken.

II. Operational norms: Adhere to the principles of safety and efficiency

Lifting and placement specifications

Hook position: The hook must be vertically aligned with the center of gravity of the item to avoid tilting or swinging. For example, a balance beam or double hooks are required when lifting long materials.

Smooth operation: Avoid sudden acceleration or braking during startup and shutdown, and gradually accelerate or decelerate to reduce shaking.

Lifting and lowering speed control: Control the speed when lifting and lowering the load to avoid sudden changes that may cause the load to become unstable.

Driving and turning control

Speed limit: Control the speed during driving, especially when turning, to avoid instability caused by excessive speed.

Sharp turn avoidance: Try to avoid sharp turns when loaded to prevent items from falling off.

Maintain a safe distance

The lifting hook should maintain a safe distance from objects, buildings, and other equipment to prevent collisions or getting stuck.

It is prohibited to operate lifting objects over people or equipment. The lifting objects must be at least 2 meters above the ground, and when crossing obstacles, they must be at least 0.5 meters above.

Handling of special operating conditions

High-temperature environment: When lifting items with a temperature exceeding 200°C, it is necessary to use electromagnetic suction cups equipped with special heat dissipation devices.

Flammable and explosive materials: It is prohibited to lift explosive and hazardous materials such as oxygen cylinders and acetylene cylinders. If lifting is necessary, safety protection measures must be taken.

Buried items: It is prohibited to lift items buried underground. They must be excavated out of the ground before any operation can be carried out.