How to properly use and maintain the lifting chain

Crane lifting chains are necessary accessories, is a major stress points lift hoist, so the quality requirements for the lifting chain will be very high, in order to further learn more about lifting chain of information and knowledge, I gather relevant information on the Internet but for a long time, are not, say Ming online for hoisting chains there is a certain scarcity of information, in order to fill this blank below me tell you about the lifting chain on the use and maintenance information.

1 sprocket mounted on the shaft should not skewed and swing. In the same drive sprocket assembly in two end should be in the same plane, the sprocket center distance of 0.5 meters, the allowable deviation of 1 mm; sprocket center distance of 0.5 meters above, the allowable deviation of 2 mm. But does not allow  Friction sprocket side phenomenon, if two series move too prone to derailments and accelerated wear. Replacing the sprocket must be careful to check and adjust the offset.

2 lifting chain tightness should be suitable, tight increase power consumption, bearing wear; chain is too loose and easily beating off chains. The tightness of the chain: from  the middle of the chain lift or pressure, the two sprocket center distance of about 2% -3%.

3 The new load chain is too long or elongation after use, difficult to adjust, remove links to look at the situation, but must be an even number. Back through the chain link should the locking plate inserted on the outside, the opening of the lock piece to be rotated in the opposite direction towards the.

4 sprocket wear serious, it should also be replaced with new sprocket and a new chain, to ensure good engagement. Not just a single or a new replacement chain sprocket.

Otherwise it will cause poor acceleration engaging new chain or a new sprocket wear. Sprocket tooth wear to a certain extent should be promptly turned over to make  Used (refer to the surface using the adjustable sprocket). To extend the use of time.

5 The old part of lifting chain with a new chain can not be mixed with, or easy to have an impact in the drive, pull off the chain.

6load chain timely to remember at work filling oil. The lubricants must enter roller and inner sleeve with the gap in order to improve working conditions in order to reduce  wear and tear.