Double-rope grab and four-rope grab are two kinds of grabs commonly used on cranes. They can be used in conjunction with bridge cranes and gantry cranes to complete the handling of bulk materials. They are widely used in garbage plants, cleaning plants, Stockyard, coal plant and other occasions. Some friends are not too familiar with the double rope grab and four rope grab wire rope winding method, I will share the wire rope winding method for everyone. The grab wire rope winding method is divided into 3 times, 4 times, 5 times, 6 times and so on. Which method to choose depends on the grab structure.
For a four-rope grab, the crane is equipped with two sets of double-row rope loop drums, each of which leads out two sets of wire ropes. One set of two wire ropes is tied to the inclined shell or (hanging The rope loop and rope tying wheel) are used for supporting the steel rope. The other group of two ropes is used for opening and closing steel ropes. They respectively pass through the gear pulley, the head pulley, and the lower beam pulley to form a pulley group, which plays the role of opening and closing the grab bucket.
Compared with the four-rope grab, the double-rope grab has a simpler structure, and everyone will quickly master the winding method of the grab wire rope. Everyone is welcome to communicate and learn together.
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