The function of crown block is very important. If there is no house, there will be a big accident. The brake prohibits the crown block from reaching the limit position and cannot walk any more. Limit switches are generally installed on the components of driving equipment such as carts, trolleys and electric hoist hooks. The cart part of the traveling crane refers to the beam as the main part, which moves in parallel on the tracks at both ends and is the supporting frame of the whole traveling crane.

Introduction to limit function

In order to prevent the front or rear of the moving frame from colliding with other objects when moving in parallel, limit switches are installed at appropriate positions at the front and end of the moving track. When the cart moves in parallel and reaches the critical point, it will stop running and play the role of power failure.

After Yunnan crane is connected to the power supply, the whole crane operation is not always in the starting state, but starts and stops repeatedly, which belongs to intermittent operation. Therefore, walking equipment such as lifting mechanism and horizontal moving mechanism, including trolley and electric hoist, need to be equipped with limit switches to prevent all kinds of safety accidents.

The installation of the limit switch and whether the circuit is energized are all programmed as a whole by the owner's circuit, which is the core control part and controls the important components of Yunnan traveling equipment, such as command control, switch buttons, limit switches and so on. Limit switches generally have the advantages of small size, convenient installation, safety and reliability.