How to ensure the stability of the gantry crane

How to ensure the stability of the gantry crane

At present, the new design of the gantry crane (referred to as the gantry crane) has set up a wind proof device, the original crane also increased the device. Some of these wind control devices control the active wheel group, and some control all the big wheels. They play a positive role in resisting the threat of wind load. However, to prevent the strong wind attack. To ensure the safety of gantry crane, must control all the big wheel. Gantry crane often encountered strong wind, when in operation, therefore, must be designed to the rated load of the wind proof device, Downhill, running under the wind conditions, such as working under a sudden strong wind conditions, To offset the fused 800N / M wind (wind twelve), the double box girder gantry crane with large area wind, Now we design and manufacture of 20t box double beam door crane as an example to discuss the wind device.

Wind control device can control all the big wheels, in order to prevent the attack of strong wind. When the pressure is less than 250N / m2, the active brake wheel, when pressure is greater than 250N / m2, all the brake wheel, can make the door smoothly stop. In order to achieve this goal, we can carry out the two brake for the first time, the first brake big wheel group, the delay of 6 seconds and then all the wheels of the brake. When the wind pressure is less than 250N / m2, the first brake has been suspended, and the second brake can be used to prevent the wind. When the pressure is greater than 250N / m2, although not the first brake crane smoothly stop, but has reduced the trolley speed, followed by the second brake, can make the door smoothly stop. This can not only ensure the effective brake of gantry crane, and can guarantee the stability of the gantry crane.