Common faults 1. The center deviation of the drum gear coupling is too large [2], and the relative displacement of the tooth surface is large; 　　
2. Poor material and low tooth surface hardness;
3. Insufficient lubrication or dry grinding;
4. The oil is not clean;
5. The tooth profile design of the drum gear coupling is not reasonable enough, the tooth top interferes or the machining accuracy is not high;
6. Excessive installation interference causes the tooth head clearance to disappear;
7. Poor oil quality, which contains acids or sulfides, etc.;

Solution

1. Calibrate the center first;
2. Choose suitable materials, and the hardness of the tooth surface after treatment is about 50-60; 　
3. Check the amount of oil and make the position where the lubricating oil pipe is aligned; 　　
4. Filter the oil so that the maximum particle size of the oil content is less than 25um; 　　
5. Use drum-shaped teeth with good performance; 　　
6. Install various drum-shaped gear couplings as required, and check the radial clearance of the inner and outer teeth; 　　
7. Replace lubricating oil and so on.