Basic Structure
Underslung overhead cranes, also known as under-running cranes, are designed to maximize space and efficiency in facilities with limited headroom. Their key components include:
1.Runway Beams:
These beams are mounted directly onto the ceiling or roof structure, providing the track for the crane to travel along the length of the workspace.
2.End Carriages:
Located at both ends of the main girder, end carriages house wheels that run along the underside of the runway beams, allowing the crane to move horizontally.
3.Main Girder:
The horizontal beam spanning the distance between the runway beams. It supports the hoist and trolley and is critical for carrying the load.
4.Hoist and Trolley:
The hoist, mounted on the trolley, moves along the main girder. It is responsible for lifting and lowering loads using a wire rope or chain mechanism.
5.Control System:
This system includes the pendant or remote control and electrical wiring, allowing operators to control the crane's movements and lifting operations safely.
Working Principle
The operation of an underslung overhead crane involves several coordinated steps:
1.Lifting:
The hoist raises the load vertically using a motor-driven wire rope or chain, controlled by the operator.
2.Horizontal Movement:
The trolley, which carries the hoist, moves along the main girder, positioning the load directly over the desired location.
3.Traveling:
The entire crane travels along the runway beams, enabling the load to be transported across the workspace efficiently.
4.Lowering:
Once in position, the hoist lowers the load to the ground or onto a designated surface, completing the material handling task.
Underslung overhead cranes provide effective material handling solutions in environments where traditional floor-mounted systems are impractical, offering flexibility and efficient use of vertical space.
Post time: Jul-25-2024
