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Although overhead crane and gantry crane have different application environments, they are generally the same in structure. Their mechanisms are mainly divided into main beams, end beams, control systems, lifting systems, running systems, running rails, cables and cranes Hook set, etc.

There are three types of motion of overhead crane and gantry crane:

(1) The crane is driven by the cart motor to run forward and backward along the two sides of the rail.

(2) The winch trolley or hoist trolley on the main beam is driven by the motor to move laterally left and right along the main beam track.

(3) The lifting system machine (main hook, auxiliary hook) drives the heavy objects to do vertical lifting.

Overhead crane and gantry crane belong to special equipment, and require a special equipment manufacturing certificate to design and produce. If non-standard operations are adopted, it will cause certain damage to the bridge and gantry cranes, and in serious cases, it will cause personal safety and safety. cause irreparable damage to property.

Instructions for the safe operation of overhead crane and gantry crane:

1. During operation, crane operators and commanders must cooperate closely. The commander must be familiar with the working environment under command.

2. The operator should strictly implement the command signal. If the signal is unclear or wrong, the operator can refuse to execute it.

3. During operation, no one is allowed to stay or pass under the heavy object, and it is strictly forbidden to lift personnel.

4. The operator must operate according to the prescribed lifting requirements, and it is forbidden to lift overloaded objects and objects of unknown weight.

5. It is strictly forbidden to pull, hoist and lift underground buried objects or heavy objects fixed on the ground. The cast-in-place concrete components or formwork must be completely removed from the grinding tool before they can be lifted.

6. The lifting and lowering speed of the crane should be uniform, and the movement should be smooth. It is strictly forbidden to suddenly speed up and slow down and brake suddenly.

overhead crane and gantry crane play a very important role in machinery manufacturing, processing industry, mining, warehousing, railway transportation and port transportation industries. Ensuring their safe and stable operation is of great significance to the development of various industries. Therefore, overhead crane and gantry crane should strictly abide by safe operation specifications during operation.