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What is the cause of the granulator spindle shaking? How should it be handled?

Answer: The reasons for the spindle shaking are as follows:

1, the spindle tail is not tightened or not tightened;

2. Large clearance between spindle spline and spline seat of 350 and above models; large clearance between spindle rear keyway and drive shaft, drive shaft and safety pin seat keyway of 32 and below models;

3, safety pin and safety pin sleeve, safety pin sleeve and safety pin seat hole clearance;

4, spindle bearing column deformation or bearing wear;

5. The hole loss in the ring die is greater than or equal to 0.30;

6, two roller gap adjustment is not uniform;

The solution:

First check whether the spindle is tightened, first remove the rear refueling system, remove the spindle gland, check whether the butterfly spring deformation. If the butterfly spring becomes flat, a new butterfly spring should be replaced (the number and assembly position of the butterfly spring should be the same as before disassembly). Then tighten the locking screw on the main gland and turn on the machine to check whether the spindle is shaking.

If it is still shaking, remove the main gland, cushion the spindle with a copper rod, push the spindle out towards the ring mold with a sledgehammer, and then remove the sealing cover of the spindle to check whether the spindle bearing is intact. If the clearance is too large, the bearing should be removed and replaced with a new bearing, and then the spindle should be installed in order to lock. In the process of assembling the spindle, it should be noted that the inner ring of the spindle bearing should be placed in the right position to assemble the spindle in place. Under normal circumstances, after the assembly is in place, the difference between the end face of the spindle on both sides and the end face of the drive wheel is about 10mm. If the spline fit clearance is large, the keyway fit clearance is large, the safety pin fit clearance is large, the inner wall of the ring die is out of round, etc., the above parts must be replaced. After the spindle is installed, open the machine to check the shaking situation.

After the spindle is normal, the gap between the press roll and the die should be adjusted correctly, and the spacing can not be adjusted to one side is large and the other is small, which is easy to cause the spindle shaking, the discharging is not smooth, the current is unstable and so on.