The bridge crane achieves the lifting, movement, and placement of heavy objects through the coordination of the lifting mechanism, lifting trolley, and bridge operating mechanism. By mastering its working principle, operators can safely and efficiently complete various lifting tasks.
Lifting and lowering
Working principle of lifting mechanism: The operator starts the lifting motor through the control system, and the motor drives the reducer and hoist to wind or release the steel wire rope around the drum, thereby achieving the lifting and lowering of the lifting device. The lifting object is lifted or placed in a designated position through a lifting device.
Horizontal movement
Working principle of lifting trolley: The operator starts the trolley drive motor, which drives the trolley to move along the main beam track through a reducer. The small car can move horizontally on the main beam, allowing the lifting object to be accurately positioned within the working area.
Vertical movement
Working principle of bridge operating mechanism: The operator starts the bridge driving motor, which moves the bridge longitudinally along the track through a reducer and driving wheels. The movement of the bridge can cover the entire work area, achieving large-scale movement of lifting objects.
Electric control
Working principle of control system: The operator sends instructions through the buttons or remote control inside the control cabinet, and the control system starts the corresponding motor according to the instructions to achieve lifting, lowering, horizontal and vertical movement. The control system is also responsible for monitoring various operating parameters to ensure the safe operation of the crane.
Safeguard
Working principle of limit and protection devices: The limit switch is installed at a critical position of the crane. When the crane reaches the predetermined operating range, the limit switch automatically disconnects the circuit and stops related movements. The overload protection device monitors the load situation of the crane in real time. When the load exceeds the rated value, the protection device starts an alarm and stops the operation of the crane.
Post time: Jun-28-2024
