The first situation: the gap between the pressure roller and the mould is not handled properly, with a large gap between the grinding tool and the pressure stick on one side and a small gap on the other, causing the spindle not to work in balance during rotation and causing shaking. In case it causes the spindle to shake again, thus having a poor discharge and unstable current. This situation needs to be dealt with in time, otherwise the damage caused to the spindle bearing will be a big trouble.
The second situation: wood pellet mill spindle shaking is related to the concentricity of the wood pellet mill if the concentricity is greater than 0.05mm will affect the life of the wood pellet mill, there will also be a lot of noise, spindle wear serious.
The third kind of situation: wood pellet mill spindle bearing damage, check the bearing, if the bearing is damaged timely replacement. This situation generally occurs only after a year of operation of the equipment, if you need to replace the spindle bearing is best to contact the granule machine manufacturer to send someone over to replace, because this is a major operation.
The fourth situation: If you find that the spline fit gap is large, the keyway fit gap is large, the inner wall of the ring die is out of round, etc., you should replace the above parts. And do the relevant lubrication, and then check whether the wood pellet mill spindle is shaking.
Another thing to note is: check whether the spindle bearing is intact. If the clearance is too large, the bearing should be removed and replaced with a new one, and then the spindle should be installed in order to lock it. In the process of installing the spindle, it should be noted that the position of the inner ring of the spindle bearing should be put in place in order to assemble the spindle in place. Under normal circumstances, after the assembly is in place, the spindle end surfaces on both sides differ from the drive wheel end surfaces by about 10mm. After the spindle has been installed, check the shaking situation by turning on the empty machine