Home > News > Content

Chain Slings Are Necessary For Cranes

Jul 07, 2017

Chain slings and wire ropes must be used according to actual working conditions, there is no question of who is stronger than who. If the simple from the point of view of safety, chain hoist demand than wire rope sling has certain advantage, know round hoisting chain rod diameter can do 6mm-72mm, limit work load can reach 1568KN. In general, circular chain slings can achieve 4 times times safety factor, Chain Sling according to user conditions can be 6 times times or 8 times times the safety factor to provide products. Good quality chain after a long period of use, after wear or use has a elongation. The lower end of the chain may suddenly break without warning.

The chain slings can adjust the length of the chain according to the lifting height of the heavy objects. It is necessary for cranes to improve the operation efficiency of cranes to enlarge the operation range of cranes. Chain Sling So how should the chain of cranes be maintained and maintained? 1. Sprocket on the shaft should not be askew and swinging. In the same transmission assembly, the end of the two sprocket should be located in the same plane, the sprocket center is 0.5 meters away, allowing the pet chain deviation of 1 mm sprocket center distance of 0.5 meters, allowing the deviation of 2 mm. But the friction sprocket tooth side phenomenon is not allowed, Chain Sling if the two-wheel is too large to produce the chain and speed up wear. You must pay attention to check and adjust the offset when changing the sprocket. 2. Chain sling tightness should be appropriate, too tight to increase power consumption, bearing easy to wear too loose chain easy to beat and off the chain. The degree of tightness of the chain is as follows: lifting or pressing from the middle of the chain, the center distance of the two sprocket is about 2%-3%. 3. The new chain slings are too long or stretched after use, so it is difficult to adjust them to remove the chain section, but they must be even. The chain section should be crossed from the back of the chain, the locking piece is inserted outside, Chain Sling and the opening of the locking piece should be in the opposite direction of rotation. 4. After the sprocket wear is serious, the new sprocket and the new chain should be replaced at the same time to ensure good meshing. You cannot replace a new chain or a new sprocket alone. Otherwise it will cause the meshing not to accelerate the new chain or new sprocket wear. Sprocket tooth surface wear to a certain extent should be in time to turn the surface use (refers to the adjustable surface used sprocket). To extend the time of use. 5. Old chain slings can not be mixed with some new chains, otherwise it is easy to produce the impact in the transmission, break the chain. 6. Chain slings in the work to remember to add lubricants in time. The lubricating oil must enter the mating gap between the rollers and the inner sleeve in order to improve working conditions to reduce wear.