What is the reason for the shaking of the main shaft of the sawdust pelletizer and straw pellet machine?

What is the reason for the shaking of the main shaft of the sawdust pelletizer and straw pellet machine?

1. The tail of the spindle is not tightened or not tightened

2. There is a large gap between the keyway of the spindle tail and the drive shaft, the driveshaft and the keyway of the safety pin seat, and the gap between the main shaft spline and the flower seat is large.

3 There is a large gap between the safety pin and the safety pin sleeve, and the safety pin sleeve and the safety pin seat hole.

4. The main shaft flange is deformed or the bearing is worn.

5. The inner hole of the ring die is out of round too large

6.The gap adjustment between the two pressure rollers is uneven.

7. The copper sleeve or steel sleeve in the safety pin seat at the tail of the main shaft is worn too much, so replace it in time.

Solution:

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

2. If it is still shaking, remove the main shaft gland, pad the main shaft with a copper rod, remove the main shaft toward the ring die with tooling or hammering, then remove the main shaft sealing cover, and check the sawdust pelletizer, Whether the main shaft bearing of the straw pellet machine is in good condition. If the clearance is too large, the bearing should be removed and replaced with a new one, and then the spindle should be installed and locked in sequence.

3. In the process of installing the main shaft of the sawdust pelletizer and straw pellet machine, pay attention to the position of the inner ring of the main shaft bearing should be right, so that the main shaft can be assembled in place. Normally, the difference between the end faces of the two sides of the main shaft and the end face of the transmission wheel is about 10mm. If you check that the spline fit-gap is large, the key groove fit-gap is large, the safety pin fit-gap is large, the inner wall of the ring die is out of round, etc., the above components must be replaced. It is recommended to buy the main shaft from Yongli Machinery and install it, then turn on the empty machine to check the shaking.

4. After the main shaft of the sawdust pelletizer and straw pellet machine is assembled properly, the gap between the pressure roller and the ring die should be adjusted correctly. The gap cannot be adjusted to one size large and the other small, which will easily cause the main shaft to shake, the discharge is not smooth, and the current is unstable. Wait for the situation.