How to Improve the Quality of Impact Crusher Rotor

Due to the impact crusher (sand making machine) long-term works in harsh conditions, it exacerbate the rotor bearing wear. Without rotor ,the crusher can not work, the rotor is irreplaceable for the crusher.  But it is also fragile,  the  bearing switch is not only expensive, but also   difficult, which often resulted the production halts. How to take effective measures to improve the life of impact crusher rotor bearing is  the largest concern for our customers . We need to pay more attention to the  normal conditions  of impact Crusher (sand making machine) rotor :
 
1)Rightly choice the rotor bearing model . Double row spherical roller bearings have strong bearing capacity, aligning performance these advantages, so this bearings is many peoples'  good choice. In addition, the calculation of the selected bearing life should be 5000 ~ 10000h .
2)  Improve the crusher bearing force status. The role of impact loading on the bearings depends on the impulse acting on the rotor and the bearing support flexibility. Increased bearing support flexibility will reduce the impact load bearing. for this, we can add the appropriate thickness of rubber between the bearing and the support frame board in order to improve the bearing support flexibility. Because of adding the rubber plate, increasing the support softness, thereby absorbing a part of the vibration energy and improve the bearing stress condition, finally  achieved the purpose of prolonging lifetime.
 3) Reasonable adjust the cooperation relationship between each other. The main force impact crusher rotor bears is the impact load, each part of roller cone bears different  load impact   , the roller cone which under the force of unit load impact  bears the largest force, when the inner and outer ring raceway contacts with the rolling body,  the force is the largest. Duo to the non-stop rotation of the inner ring work, the point of contact on the track will recycle from the maximum force to the minium force , therefore the inner ring is required to cooperate tight, so it will not appear the phenomenon of one point staying in the  maximum force point . while the outer ring is different, the outer ring is relatively fixed, the  maximum force  points will stay in a fixed point, therefore, if the outer ring is loose, it is likely to move slightly under the impact load,  thus increase the maximum force points, and extend the life of the outer ring.