There is an abnormal sound between stirring, clunking, clunking...what is the reason?
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There is an abnormal sound between stirring, clunking, clunking...what is the reason?
It is estimated that there is a problem with the reducer gear or the bearing in the frame. Check the above 2 points.
Mixer, what type? It should be that the mixing blade in the tank is scratched, which is why the intermittent behavior occurs. like: Bimetal thermometer/temperature transmitter, plug-in level meter, etc.
Use a listening rod (welding rod, screwdriver, metal rod, etc.) with one end against the base of the ear, and the other end against the surface of the part to be detected, such as the frame bearing, reducer housing (reducer bearing), reactor housing, etc. Listen and determine the vibration location, and analyze and inspect the vibration location. . . .
The more advanced ones use a needle monitor to check the needle position and the needle value for analysis and inspection. . . . .
Use a listening needle to listen during operation to confirm the sound location, all bearing parts, whether the reducer is a gear or a cycloidal pinwheel, and analyze the specific situation.
The poster described that the frequency of the sound heard should not be the high-speed end, and the focus is on the low-speed part. 1. The low-speed bearing part of the reduction box, lubrication, temperature changes, vibration, etc. 2. The coupling part, sometimes the coupling bolts are loose and the sound will occur. 3. I don’t see clearly whether it is mechanically sealed. The mechanical seal bearing may also be 4. I don’t know the structure of the spoiler blade. Loose blades may also produce abnormal noise. 5. The stirrer blade scrapes the wall or other internal parts.