How does the double girder gantry crane prevent swing?

Nowadays, a large number of goods are transported in containers, and ordinary hook gantry cranes are usually used in railway freight yards to lift groceries and containers. The spreader swings greatly, the unbalanced load is skewed, and the operation efficiency is low. Therefore, the hook gantry crane with anti-sway function has been widely used. .

The fixed pulleys of the double-girder hook gantry hoisting mechanism are arranged in a centralized manner, which basically does not produce anti-sway effects. The lifting mechanism adopts four fixed pulleys scattered and arranged symmetrically with respect to the lower rope center of the wire rope. At the same time, they are arranged at the four corners of the spreader. 2 movable pulleys whose centerlines are vertical to each other, a total of 8 movable pulleys, and 4 steel wire ropes. The hoisting wire ropes are double-crossed in the running direction of large and small vehicles, and at the same time, 4 lifting points of the spreader are realized. The running direction of large and small vehicles is realized. All have anti-sway function, called 8-rope cross anti-sway.

When the big and small vehicles brake and the lifting does not work, the spreader will swing, and there will be relative motion between the moving pulley and the lifting wire rope, that is, the moving pulley will roll on the wire rope. The swing energy of the tool or cargo produces the anti-rolling effect.

The anti-sway control system electrical can be installed, and the anti-sway control electrical system can safely avoid the anti-sway problem caused by the crane. The current market price, due to the different prices of the accessories, the average price of the anti-sway electrical system is about 230,000 yuan. The anti-sway control system can better solve the problem of anti-sway of the crane, and also saves manpower expenditure. It does not require experience, ensures the safety of the operation, and avoids some accidents.