The stainless steel chain can adjust the length of the chain according to the lifting height of the lifting object. It is an indispensable and important retrieval device for the crane. It plays an important role in improving the operating efficiency of the crane and expanding the operating range of the crane. So how to maintain and maintain the crane chain?
1. There should be no skew and swing when the sprocket is installed on the shaft. In the same transmission assembly, the end faces of the two sprockets should be located in the same plane. When the center distance of the sprocket is less than 0.5 meters, the allowable deviation is 1 mm. But it is not allowed to have the side phenomenon of friction sprocket teeth. If the two wheels are moved too much, it is easy to produce off-chain and accelerated wear. When replacing the sprocket, care must be taken to check and adjust the offset.
2. The tightness of the lifting chain should be appropriate, too tight to increase power consumption, the bearing is easy to wear and the loose chain is easy to jump and off the chain. The tightness of the chain is: lifted or pressed from the middle of the chain, the center distance between the two sprockets is about 2% -3%.
3. The new lifting chain is too long or elongated after use, it is difficult to adjust, the chain link can be removed according to the situation, but it must be an even number. The chain link should pass through the back of the chain, the locking piece should be inserted outside, and the opening of the locking piece should be in the opposite direction of rotation.
4. After the sprocket wears seriously, the new sprocket and new chain should be replaced at the same time to ensure good meshing. It is not possible to replace new chains or sprockets alone. Otherwise, it will cause poor meshing and accelerate the wear of the new chain or new sprocket. After the sprocket tooth surface wears to a certain degree, it should be turned over in time (refer to the sprocket used for the adjustable surface). To extend the use time.
5. The old hoisting chain cannot be mixed with some new chains, otherwise it will easily cause impact in the transmission and break the chain.
6. Remember to add lubricating oil in time when lifting chain. The lubricating oil must enter the matching gap between the roller and the inner sleeve in order to improve working conditions and reduce wear.
