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Lifting Chain Plays An Important Role In Cranes


The lifting chain can adjust the length of the chain according to the lifting height of the weight. It is an essential and important device to improve the operation efficiency of cranes to enlarge the operation range of cranes.

The type of hoisting chain is generally divided into high strength ring chain, Germany standard long ring chain, metallurgical chain, mining chain, stainless steel chain, hoisting chain mainly has EN818 standard chain, 80 grade American Standard chain, T (8) class carburizing hoisting chain, 80 class hoisting Sling chain, V (10) class hoisting chain (Blackening), T (8) class hoisting chain (galvanized) and so on. Lifting Chain The chain adopts the most advanced chain-making equipment and the most advanced chain-making technology in the world, chooses the highest quality alloy steel (reference DIN5685, En818 2, Gb 12718, Gb t 20946 and so on), its scope is: Bion-6-148, also can make the different pitch chain according to the customer's demand.

Lifting chain specifications generally have EN818 standard chain, 80-grade American Standard chain, T (8) class carburizing lifting Chain, V (10) class lifting Chain (Blackening), T (8) class lifting Chain (galvanized) and other specifications.

The scrap standard of lifting chain is judged mainly from several aspects:

First, the allowable wear value of the chain should not exceed 10% of the diameter of the ring chain bar or the thickness of the accessory.

Second, from the main ring of the plane is not curved, the main ring distortion of more than 10 degrees should be scrapped.

Third, the chain of any part of the cracks, Lifting Chain bending or twisting phenomenon and the ring hinge between the phenomenon of death or stiff Shang resistance and so on, can not be excluded when the use.

The permanent elongation of the lifting chain and the single ring shall not exceed 5% of the original length.

Please use your friend's lifting chain carefully according to the scrap standard. There are questions you can consult Beijing Xin Bird Huatai Their company, Lifting Chain they are very professional lifting chain.

Maintenance and repair of hoisting chain

The 1 sprocket shall be fitted on the shaft without skewing and swinging. In the same transmission assembly, the end face of the two sprockets should be located in the same plane, the sprocket center is 0.5 meters below the allowable deviation of 1 mm, the sprocket center is more than 0.5 meters, allowing the deviation of 2 mm. But the friction sprocket tooth side phenomenon is not allowed, Lifting Chain 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 Lifting chain 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 new lifting chain is too long or after use elongation, it is difficult to adjust, you can see the case removed chain section, but must be even. The chain section should be crossed from the back of the chain, Lifting Chain the locking piece is inserted outside, and the opening of the locking piece should be in the opposite direction of rotation.

4 Sprocket Wear is serious after the new sprocket and new chain should be replaced in order 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). Lifting Chain To extend the time of use.

5 The old lifting chain can not be mixed with some new chain, otherwise it is easy to have the impact in the transmission, pull off the chain.

6 lifting chain in the work must remember to add lubricating oil. The lubricating oil must enter the mating gap between the rollers and the inner sleeve in order to improve working conditions to reduce wear.

The lifting chain can adjust the length of the chain according to the lifting height of the weight. It is an essential and important device to improve the operation efficiency of cranes to enlarge the operation range of cranes.