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.