What is the reason for the abnormal sound of the reducer?

There are two main types of noise produced by the reducer: one is due to loose joints between parts, or the sound of parts is broken. This type of sound is mainly caused by abnormal friction and impact between parts. The sound is clearer, and the second is due to the abnormality of the rolling bearing and the abnormality of the gear teeth. 

For example, if the backlash is too small or too large, the tooth shape position is not accurate, and the total tooth area is insufficient, this situation will cause continuous and clear sound, and the sound will increase as the speed ratio increases; the abnormal cooperation of rolling bearings refers to the rolling bearings If the gap is too large or too small, when the gap is too large, a continuous sound will be produced, and the sound speed will increase with the speed ratio increasing. 

This situation is also caused by the difficulty of the transmission gear assembly line. For example, the backlash of the gears is too large, or the center of a certain pair of gears is too large, because the material of the general gears is very rigid, resulting in abnormal noise. When the gear grinding machine is not used, sometimes the grinding gear that uses grinding self-grinding cannot be well grasped due to the grinding time and the amount of grinding. Too much wear on the side gears of the transmission gear, resulting in a reducer. the sound of the voice. There is another such situation, that is, the rolling bearing will have a residue that has not been washed and cleaned, and it will make a sound.