Four common failures and cause analysis of plum blossom coupling

　　The plum blossom coupling manufacturer introduces you to the failure analysis of plum blossom coupling: ①The tooth surface wears severely. ②The axial displacement of the inner gear ring is relatively large, and it cannot be meshed. ③The phenomenon of broken teeth occurs. ④The bolts on the coupling are broken.

　　The main reasons for the failure of the plum blossom coupling are as follows:

　　, Insufficient or lack of oil in the coupling of lifting accessories.Or improper use of grease causes calcification of the grease, resulting in the inability to lubricate between the tooth surfaces, or poor lubrication, resulting in serious tooth surface wear. In this case, just change the grease and inject qualified grease regularly to prevent oil leakage. The amount of oil is sufficient. Can be avoided.

　　, The horizontality and coaxiality errors of the two shafts are too large, exceeding the range that the coupling can compensate, making the shaft teeth and the internal teeth mesh incorrectly, causing local contact and additional torque.And this additional moment can be the axial force.Acting on the inner gear ring, the magnitude of this force depends on the size of the deviation, and is proportional to the deviation. The greater the deviation, the greater the force, which causes the axial displacement of the inner gear ring of the plum blossom coupling of the lifting accessories.

　　If the displacement is too large, it will be uncontrollable, resulting in serious gear wear and broken teeth. The internal and external teeth cannot be meshed and cannot be driven straight.It is difficult to deal with this kind of fault, and it needs to stop production.That is to realign, or realign the side of the reducer, or realign the side of the reel.

　　First find out the part with larger offset error, then first measure the offset of the coupling to which side, that is, measure the level and coaxiality of the main shaft and the level and coaxiality of the reducer main shaft, and then press the quality again. Standard copy leveling and leveling, that is, failure.

　　In addition, the horizontality and concentricity of the two shafts have a large error, which causes the coupling to rotate in a different way.The reason for the gear wear of the above-mentioned lifting fitting coupling is basically similar. In addition to the normal force, the connecting bolt is also subjected to additional bending moment, which causes it to break.This is the main reason.This kind of reason mostly occurs when the level difference between the left and right of the reducer main shaft is large.Furthermore, bolts with small diameters, insufficient strength or poor bolt materials can also cause bolts to break.