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Rope clamp of steel wire rope is mainly used for temporary connection of steel wire rope, fixing of rear hand rope when steel wire rope passes around pulley block, and fixing of cable wind rope head on boom, etc., including phosphating coated steel wire rope, galvanized steel wire rope, stainless steel wire rope and smooth steel wire rope. It is a wide wire rope clamp used in hoisting operation.
Precautions for the use of wire rope clamps: they should not be used for a long time, and should be inspected and scrapped regularly, and should not be used repeatedly.
(1) The size of the chuck should be suitable for the thickness of the steel wire rope, and the inner clear distance of the U-shaped ring should be 1 ~ 3 mm larger than the diameter of the steel wire rope, and the clear distance is too large to clamp the rope easily.
(2) When using, tighten the U-bolt until the wire rope is crushed by about 1/3. Because the wire rope is deformed after being stressed, the rope should be tightened for the second time after being stuck in the wire rope, so as to ensure the reliability of the joint. If it is necessary to check whether the rope clamp slides after the steel wire rope is stressed, a safety rope clamp can be added. The safety rope clamp is installed about 500mm away from the last rope clamp, and then the rope head is released for a safety bend and then clamped with the main rope, so that if the clamp slips, the safety bend will be straightened, which is easy to find and reinforce at any time.
(3) The arrangement spacing between the rope clamps is generally about 6 ~ 7 times of the diameter of the steel wire rope. The rope clamps should be arranged in order. The U-shaped ring should be clamped on one side of the rope head, and the pressure plate should be placed on one side of the main rope.
(4) Correct arrangement quantity and method: the number of rope clips is generally not less than 3-5, the distance between rope clips should be ≥ 6 times of wire rope warp, the distance between the last clip and rope head should be ≥140mm, and the number of clips should be determined according to the wire rope diameter. There are 3 clips for ≤18mm, 4 clips for 18-26mm, 5 clips for 26-36mm and 6 clips for 36-44 mm.
(5) The rope clamps of steel wire rope should be used together. When the rope diameter is less than 19mm, there should be no less than 3 rope clamps, and when the rope diameter is 19-32mm, there should be no less than 4 rope clamps. The arrangement spacing between rope clamps is generally about 6 ~ 8 times of the diameter of steel wire rope, and the rope clamps should be arranged in order. The U-shaped ring should be clamped on one side of the rope head, and the pressure plate should be placed on one side of the main rope. Check whether the wire rope clamp is loose after being loaded once or twice. Generally, the nuts need to be tightened further.