of Crane
Limit switch is an important part of the safety of Overhead Crane. The limit switch is electromechanical equipment, which can adjust all the equipment from household appliances to industrial machinery. For bridge cranes, they provide a solid reference basis for maintenance efficiency, reliability and safety standards.
The limit switch has almost unlimited application in regulating the operation of the crane to prevent potential accidents. For example, when the rope comes out of the groove or prevents two trolleys from hitting the same bridge structure.
Function
In addition, the limit switch can prevent the crane from lifting loads exceeding the rated capacity. Another limit switch prevents thefrom reaching the upper pulley and cable drum. There is another type that can prevent the motor from overheating.
If there is no overhead, the potential harm is very great. Therefore, each limit switch should be checked and maintained regularly.
When they open or close the circuit, the limit switch will wear out over time. In order to monitor wear and replace the switch before it fails, check the limit switch every day before using the crane.
Understanding the working mode of the limit switch is very important to understand the working mode of the crane and how these established settings make the crane run safely and effectively.
In some cases, there may be multiple limit switches associated with crane operation, such as crane movement or lifting motion. The first switch will signal that the safe travel limit is approaching and slow down the movement of the crane. The subsequent switch will indicate that the end of the safe travel distance has been reached and stop the movement.