Eight reasons and solutions for abnormal vibration of sand making machine

Everyone who knows the sand making machine knows that the rotor is the core component of the impact sand making machine, and the vibration of the rotor for some reason may cause the vibration of the entire equipment, so here we first introduce the reasons for the vibration of the rotor:

1. The motor shaft and the rotor shaft are not concentric

The solution is to re-align. After checking the installation, the motor shaft must be concentric with the rotor shaft.

2. The rotor bearing is damaged

If the bearing clearance exceeds the limit or the bearing is damaged, the rotor will vibrate violently. The solution is to replace the bearing with a new one. During use, check regularly to see if the bearing needs to be replaced, so as not to delay production.

3. The rotor is unbalanced

The imbalance of other parts on the rotor will cause the rotor to be out of balance and cause vibration, which requires careful inspection and adjustment of the balance of the rotor. If the hammers are turned around, in order to prevent the weight of the rotor from losing balance, all the hammers in the crusher must be turned around together, otherwise strong vibration will occur during operation, and attention should be paid to the weight difference between the two groups during installation. More than 5g.

4. Material blockage

If the material is blocked, the material should be dredged in time. In order to prevent vibration caused by material clogging, the feeding specifications should be strictly controlled. Large particles and foreign matter that cannot be crushed should not enter the crusher. Also, pay attention to the moisture content of the material at all times. If the material contains more water, it will stick in the crusher. , Gradually condense into large pieces and adhere to the inner wall of the machine. If it is not cleaned in time, it will cause material blockage, so we must pay attention to the moisture in the feed.

In addition, there are the following reasons that can also cause abnormal vibration of the sand making machine:

5. The foundation is not firm or the anchor bolts are loose

When the sand making machine vibrates abnormally, first check whether it is caused by the foundation and anchor bolts. If the foundation is not firm or the anchor bolts are loose, it will affect the stability of the machine. At this time, it is necessary to check and tighten the bolts, and in the future use process, try to check whether the foundation or bolts are loose at intervals, and reinforce them in time if they are loose.

6. Too much feeding or too large material size

If the amount of feed exceeds the load of the sand making machine, the sand making machine will not be able to crush the materials in the crushing chamber in time, resulting in the accumulation of materials in the crushing chamber and abnormal vibration. Adjust the amount of material and maintain uniform and continuous feeding.

When the material is too large, it will also cause abnormal vibration, so the size of the feed should be checked to meet the requirements, and the material with abnormal particle size should be removed in time.

7. Main shaft bending deformation

When the main shaft of the sand making machine is bent and deformed, it will also cause abnormal vibration of the sand making machine. At this time, the spindle needs to be replaced or corrected in time.

8. Wear of wear-resistant parts

For example, when the wear-resistant block of the sand making machine wears out, the crushing process of the sand making machine will be blocked, resulting in abnormal vibration. Therefore, it is necessary to check in time, and repair or replace it in time after it is found to be worn.

If the sand making machine is in vibration for a long time, some parts will become loose if not dealt with in time, and dangerous accidents are prone to occur during the sand making process. The vibration of the impact crusher should be carefully checked during processing, especially the abnormal vibration caused by the wear or shedding of internal wearing parts. Regularly check equipment and prevent problems in time to ensure production stability.