Sprocket chain maintenance

1. The tightness of the chain should be appropriate. If it is too tight, it will increase power consumption and the bearings will be easily worn; if it is too loose, the sprocket will easily jump and derail. The tightness of the chain is: lifting or pressing from the middle of the chain, it is about 2%-3% of the center distance between the two sprockets.

2. The sprocket should be installed on the shaft without swinging or skewing. In the same transmission component, the end faces of the two sprockets should be located in the same plane. When the center distance of the sprockets is less than 0.5 meters, the deviation can be 1 mm; when the center distance of the sprockets is more than 0.5 meters, the deviation can be 2 mm. However, there should be no friction on the side of the sprocket teeth. If the two wheels are offset too much, it is easy to cause derailment and accelerated wear. When replacing the sprocket, you must pay attention to checking and adjusting the offset.

3. After the sprocket is severely worn, a new sprocket and a new chain should be replaced at the same time to ensure good meshing. Do not replace only the sprocket or the chain alone. Otherwise, it will cause poor meshing and accelerate the wear of the new sprocket or the new chain. When the sprocket tooth surface is worn to a certain extent, it should be turned over in time (referring to the sprocket used on the adjustable surface) to extend the service life.

4. If the new chain is too long or stretched after use, it is difficult to adjust. The chain links can be removed according to the situation, but they must be an even number. The chain links should pass through the back of the sprocket, the locking plate should be inserted outside, and the opening of the locking plate should face the opposite direction of rotation.

5. The chain should be filled with lubricating oil in time during work. The lubricating oil must enter the matching gap between the roller and the inner sleeve to improve working conditions and reduce wear.

6. The old sprocket cannot be mixed with the new sprocket, otherwise it is easy to produce impact in the transmission and break the sprocket.

7. When the machine is stored for a long time, the sprocket should be removed and cleaned with kerosene or diesel, and then coated with engine oil or butter and stored in a dry place.