Maintenance and maintenance of double speed chain

Friends who use double-speed chains usually pay attention to the maintenance of the chain, but there are many types of chains, especially lifting chains, which should be distinguished from other models during maintenance and maintenance.

1. The double-speed chain sprocket should be mounted on the shaft without skewing or swinging. In the same transmission assembly, the end faces of two sprocket wheels should be in the same plane. When the center distance of the sprocket wheel is less than 0.5 meters, the allowable deviation is 1 mm; when the center distance of the sprocket wheel is more than 0.5 meters, the allowable deviation is 2 mm. However, it is not allowed to cause friction on the side of the sprocket teeth. If the two-wheel knitting movement is too large, it will easily cause off-chain and accelerated wear. Care must be taken to check and adjust the offset when replacing the sprocket.

2. The tightness of the double-speed chain should be appropriate. Too tight will increase power consumption and the bearings will wear easily; too loose chains are easy to jump and delink. The tightness of the double-speed chain is: lifted or depressed 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 stretched after use, it is difficult to adjust. Depending on the situation, the chain link is removed, but it must be an even number. The chain link of double speed chain should pass through the back of the chain, the locking piece is inserted outside, and the opening of the locking piece should face the opposite direction of rotation.

4. When the sprocket is severely worn, the new sprocket and the new chain should be replaced at the same time to ensure good meshing. It is not possible to replace a new double speed chain or a new sprocket alone. Otherwise it will cause poor meshing and accelerate the wear of the new chain or new sprocket. After the tooth surface of the sprocket is worn to a certain extent, it should be turned over in time (refer to the sprocket used for adjustable surface). To extend the use time.

5. The old double-speed chain cannot be mixed with part of the new chain, otherwise it is easy to produce impact in the transmission and break the double-speed chain.

6. Remember to fill up the lubricating oil in time when the double-speed chain is working. The lubricant must enter the clearance between the roller and the inner sleeve to improve working conditions and reduce wear.