General classification of crane accessories:

1. Basic components: including main beams, end beams, outrigger supports, etc. These components constitute the basic structure of the crane and provide support and load-bearing capacity.

2. Traveling mechanism: including traveling wheels, traveling driving mechanism, traveling motor, etc. These components enable the crane to move flexibly within the working area.

3. Lifting mechanism: including lifting motor, drum, wire rope, etc. These components are used to lift and lower the load. The lifting mechanism can adjust the height to complete the lifting task.

4. Trolley mechanism: including the slewing mechanism and slewing mechanism of the crane. The slewing mechanism adjusts the working range and rotation angle of the crane, and the slewing mechanism makes the crane rotate horizontally.

5. Control system: including the crane’s operating room, electrical system, control devices, etc. These components enable remote operation, monitoring, and ensure safe and efficient work.

These are some common classifications of gantry crane components. There are various other components such as safety devices, limits, electrical equipment, etc. that support the operation, safety and functionality of the crane. Specific components may vary depending on the model and size of the crane.