Do you know the common faults of NL drum gear coupling?

NL type drum gear coupling is a new domestic product and has been widely used. It is suitable for axial and flexible transmission, allows larger axial radial and angular displacement, and has simple structure, convenient maintenance, and easy maintenance. Demolition, low noise, low loss of transmission effect, long service life and other advantages are well received by users.

In the daily use of the NL drum gear coupling, the ever-power coupling manufacturer will show you that the coupling often has the following failures:

◇The coupling has broken teeth.

◇The axial displacement of the coupling gear is large, and it can't even mesh.

◇The gear surface of the coupling is seriously damaged.

◇The coupling bolt is broken.

The reasons for these failures are mainly the following two aspects:

1. The horizontal and coaxiality errors of the two shafts are too large, beyond the coupling range, and are compensated, so that the meshing between the shaft teeth and the internal teeth is inaccurate, resulting in local contact and additional torque.

2. Insufficient or insufficient oil savings in the coupling of lifting accessories.Or improper use of grease can lead to calcification of the grease, resulting in lubrication failure between the tooth surfaces, or poor lubrication, resulting in serious wear on the tooth surface.

Solution: This type of failure is difficult to handle and requires shutdown.That is to re-center or re-center the side of the reducer, or re-center the side of the drum.First find the parts with larger deviations.In this way, first measure the deviation of the coupling from the side, that is, measure the levelness and coaxiality of the main shaft and the level and coaxiality of the reducer main shaft, and then adjust the levelness and alignment according to the quality scale. Take the fault.

In addition, the horizontality and concentricity errors of the two shafts are relatively large, which causes the coupling to be unable to roll.Similar to the reasons for the wear of the coupling gear of the lifting accessories mentioned above, in addition to the normal force, the connecting bolt also breaks due to the additional bending moment.This is the main reason.This reason mostly occurs when the level difference between the left and right of the reducer main shaft is large.In addition, small bolt diameters, insufficient strength, or poor bolt materials can also cause bolts to break.