Řetězy Donghua - produktový katalog 2017

Roller cracked or deformed Pin rotates or plate hole drawn long 1.Chain overloaded Plates broken Outer link outside rubbed Excessive wear of sprocket 1.Select small pitch chain or add sprocket teeth number 2.Remove all the foreign bodies or replace chain 3.Replace the chain and make appropriate tensioning 4.Reduce the impact of chain 1.Eliminate the overloading causes or adopt large specification chain 1.Eliminate the overloading causes or adopt large specification or higher strength chain; if sprocket failure symptom found, replace it Pin broken or plate broken along the hole connecting line direction Excessive side-wear of plates or sprocket teeth 1.Sprocket not coplanar or ending beat severely 2.Bad bearing stiffness of sprocket 3.Severe twist of chain 1.Chain not tensioned and jump, then to hit adjacent bodies 2.Chain box deformed or with foreign bodies inside 1.Make appropriate chain tensioning 2.Eliminate chain box deformation and remove foreign bodies 1.Increase machining and installation precision 2.Increase bearing parts stiffness 3.Replace chain 1.Selecting big pitch chain or reduce dynamic load 1.Bad lubrication 2.Chain speed too high or chain overloaded 1.Bad lubrication 2.Inferior material of sprocket and insuffi- cient teeth surface hardness 1.Chain wobbling heavily 2.Knock with obstructions 3.Locking parts wrong installed 1.Make suitable tensioning or consider adding supporting board for guide plate 2.Remove all obstructions 3.Improve the installation quality of locking parts 1.Improve lubrication conditions 2.Improve sprocket material quality and its teeth surface hardness 1.Supply suitable lubrication system 2.Lower the speed or reduce the load Locking parts such as spring clip and cotter pin etc. become loose. 1.Excessive overloading 1.The load above chain dynamic capacity Pin worn or bush bonded with pin 1.Too big chain pitch or too small number of sprocket teeth 2.Sprocket teeth have foreign bodies. 3.The chain climbs onto sprocket teeth too high. 4.Excessive chain impact load Failure Symptom Possible Causes Actions 链传动维护保养 Maintenance for roller chain drive www.dhchain.com 584 东华链条集团 DONGHUA CHAIN GROUP