Lifting chain maintenance measures

The crane chain can be adjusted according to the lifting height of the load is an essential crane, important special chain pickup device to improve the efficiency of crane operations to expand the scope of crane operations plays an important role. So how should the crane chain maintenance and maintenance? 1. The sprocket should be installed on the shaft without skew and swing. The end surfaces of two sprockets in the same transmission assembly should be in the same plane. If the sprocket center distance is below 0.5m, the deviation of pet chain is allowed to be 1mm. However, it is not allowed to rub the side of the sprocket teeth, if the two wheels are shifted too much, it is easy to produce off-chain and accelerate the wear. When replacing the chain wheel, we must pay attention to check and adjust the offset. 2. The elasticity of lifting chain should be suitable, too tight increases power consumption, and the bearing is easy to wear out too loose chain is easy to jump and take off the chain. The tension of the chain should be about 2%-3% of the center distance between the two sprockets when lifting or pressing down from the middle of the chain. 3. If the new lifting chain is too long or elongated after use, it is difficult to adjust, you can remove the links depending on the situation, but it must be an even number. The chain link should be passed through the back of the chain, the locking piece should be inserted outside, and the opening of the locking piece should face the opposite direction of rotation. 4. After the sprocket is worn out seriously, it should be replaced with new sprocket and new chain at the same time to ensure good meshing. You cannot replace the new chain or new sprocket alone. Otherwise, it will accelerate the wear of the new chain or new sprocket. After the tooth surface of sprocket wheel wears to a certain degree, it should be turned over in time to use (the sprocket wheel with adjustable surface). To prolong the use time. 5. The old lifting chain cannot be mixed with part of the new chain, otherwise it is easy to produce impact in the transmission and pull off the chain. 6. The lifting chain should remember to fill the lubricating oil in time during the work. And the lubricating oil must enter the fitting gap between the roller and the inner sleeve in order to improve the working condition to reduce the wear and tear. Special Chain, Pet Chain