A rail sweep is a safety and maintenance component found on bridge cranes.
Understanding Rail Sweeps
As their name implies, rail sweeps are integrated into bridge end trucks and trolleys ahead of the wheels to clear the rail of a bridge crane. Their primary function is to prevent objects from being run over by the wheels, which could potentially cause damage to the wheel, the rail, or lead to a derailment.
Purpose and Function
The main purpose of a rail sweep is obstacle removal. It acts like a plow or broom, pushing debris, small tools, or other foreign objects off the crane rail before the wheels pass over them.
- Safety: By clearing the path, rail sweeps reduce the risk of accidents caused by obstacles on the rail.
- Equipment Protection: They help protect the crane wheels and the rail from dents, wear, and potential damage that could result from impact with objects.
- Operational Efficiency: Preventing damage and derailments ensures smooth and uninterrupted crane operation.
Where Are They Located?
Rail sweeps are strategically placed just ahead of the wheels on the following crane components:
- Bridge End Trucks: These are located at each end of the crane bridge and ride along the runway rails.
- Trolleys: This is the unit that travels along the bridge girder and carries the hoist. It rides on rails on top of the bridge girder.
In both cases, the rail sweep extends slightly down towards the rail surface to effectively push debris aside.
Common Materials
Rail sweeps are typically made from durable materials designed to withstand impact and friction, such as:
- Steel
- Heavy-duty rubber or plastic
Importance in Crane Maintenance
Regular inspection of rail sweeps is a critical part of crane maintenance. Damaged or missing sweeps should be repaired or replaced promptly to ensure the continued safe and efficient operation of the crane.
