Common faults and installation and maintenance techniques for gear reducers
- 2019-03-12-

Gear reducer manufacturers are generally used for low-speed, high-torque transmission assembly. The longer the working time, the more severe the wear of the internal drive assembly, and various failures occur. Today, share the common precautions for gear reducers and some tips for assembly protection.

1. Abnormal heat of the reducer

The abnormal heat generation of the reducer means that the bearing part or the casing part of the reducer is seriously heated, which exceeds the normal temperature planning, and the common one is the heat of the bearing part.

Possible reasons: the reducer is overloaded, the bearing is worn, the bearings, gears, shafts and other parts are improperly assembled, the voltage is too high or too low, and it is recommended in a short time, too many connections, and the lubrication is not good.

In normal rolling, excessive load work may cause multiple reducers to repeatedly fail, and bearing wear is very common.

2. Reducer oscillation and dynamic abnormality

It means that the oscillation and dynamics of the reducer increase significantly, beyond the normal allowable range, or there is abnormal noise and oscillation.

Possible causes: There are many reasons for abnormal oscillation and noise of the reducer. The main ones are: gears and bearings are damaged. There are foreign objects stuck in the gear meshing parts. The coaxiality between the reducer and the motor is too large. The gears are not well assembled during assembly. Not strong, loose bolts, unclean impurities and impurities.

3. Oil spill

Mainly due to the bearing end cover orientation of the reducer, the sealing surface or the joint surface of the casing, there is leakage of lubricating oil.

Possible reasons: the seal is not good, the box is deformed, the shell is damaged, etc.; it may also be in the gear transmission, due to the resistance to heat, the oil temperature rises, the oil becomes thin and the leakage is simple.

The failure of the reducer is related to too many factors. Any problem in any link may cause the reducer to malfunction. Therefore, the daily maintenance and maintenance and the quality of the repair after the assembly failure are essential.

However, the protection of the reducer is difficult, and the factors that cause the failure of the reducer are often inside the cabinet of the reducer, and it is difficult to view the inside of the reducer during normal operation. It is very important to find out the problem early and avoid the expansion of the incident.