What are the factors that cause crane instability?

Everyone is no stranger to cranes, hoisting machinery is mainly used for outdoor cargo yards, stock yards, and bulk cargo handling operations. Its metal structure is like a door-shaped frame. Two supporting legs are installed under the main beam to walk directly on the track on the ground. Both ends of the main beam can be provided with outhanging cantilever beams. Here is a brief introduction to the factors and working principles that lead to the instability of the hoisting machinery.

1. Factors leading to instability of hoisting machinery:

1. Crane instability
Main factors: overload, unstable outriggers, mechanical failure, excessive mast pain, etc.
Solution: prohibit overloading, strict mechanical inspection, lay the outriggers and fix them with road wood and steel plate to keep the outriggers stable.
2. The instability of the hoisting system
Main factors: unsynchronized multi-machine hoisting; improper load distribution of multi-machine hoisting with different lifting capabilities; multi-action, multi-position command and harmonious error, mast system wind rope and ground anchor instability.
Solution: When multi-machine hoisting, try to choose cranes of the same model and the same or similar hoisting capabilities, and complete the synchronization of multi-machine hoisting through the main and deputy commanders; cluster jacks or winches are controlled by the computer to complete the synchronization of multiple hoisting points; Good command and operating procedures and drills, try to be consistent; wind ropes and ground anchors are set up strictly in accordance with the hoisting plan and technical calculations. After the settings are completed, check and record them.
3. Instability of hoisting equipment or components
Main factors: because of the different forces during planning and hoisting, the rigidity of the equipment or components is too small.
Solution: Choose multiple lifting points for slender, large-area equipment or components; fix or increase the cross-section of the thin parts or rods of section steel components and grid structures.

2. The working principle of the crane:

The lifting organization is the organization used to complete the straight lifting of materials. It is the most important and fundamental organization of any crane gantry crane.
The operation organization is the organization that completes the horizontal transfer of materials through the operation of a crane or a hoisting trolley. There are trackless operation and track operation. According to the different driving methods, it is divided into two types: self-propelled and traction.
The luffing organization is a unique operation organization for jib cranes. The luffing organization changes the operation fluctuation by changing the length and elevation angle of the boom.
Rotating organization is to make the boom move in reverse motion around the straight axis of the crane, and transport the moving materials in the annular space. The crane moves through a single organization or a combination of multiple organizations to reach the intention of transferring materials.