Rail mounted container gantry cranes (RMGs) are specialized container loading and unloading equipment for container yards. Portal crane, abbreviated as gantry crane, is a widely used loading and unloading equipment in ports and shipyards, mainly used for loading and unloading bulk cargo, containers and other materials. Adopting PLC+frequency converter control mode.
Solution and technical features
Constant power: Fully linearized constant power speed regulation, improves speed under light loads, and improves work efficiency.
Automatic container search function for large and small vehicles: Based on the given coordinates of the container, it automatically runs to the top of the container position.
Enhance anti slip hook control: Based on torque verification function, achieve good speed control and brake control to ensure lifting safety.
Automatic anti sway function: The car takes active coordination actions to control the swing of the lifting device, reducing mechanical impact, and can achieve automatic anti sway control of the lifting device in the presence of initial swing and interference, with high stability.
Container volume statistics: Record the container loading and unloading quantity for each work shift, and be able to print and archive it.
The grab bucket crane has an automatic opening and closing function: real-time detection of opening and closing, support of wire rope position, automatic calculation of speed curve when opening and closing the bucket, and can quickly and accurately control the bucket shape.
Automatic sinking and grabbing function: The grab bucket crane enters the sinking and grabbing mode based on the main command signal. At this time, the opening and closing are in speed mode, and the support is in torque mode. The grab bucket automatically sinks to ensure full grabbing of materials.
Position synchronization: Real time tracking of the relative positions of the two machines during the same lifting and lowering of the grab bucket crane, correcting deviations, and ensuring synchronization.
Torque balance: When the grab bucket is lifted and closed, the torque of the two machines is dynamically distributed to ensure balanced force distribution.
CMS: Friendly human-machine interface, intelligent fault handling, fault tracking, and equipment maintenance functions, recording operation instructions, working status of various mechanisms, operating travel, weight, wind speed, etc., effectively reducing the workload of maintenance and operation staff, and facilitating management.
