Impact crusher, referred to as impact crusher, commonly known as sand making machine, is a high-energy, low-impact shock with international advanced level. Its performance plays an irreplaceable role in various ore fine breaking equipment, and it is the most effective, practical and reliable gravel machine.
Impact crusher, referred to as impact crusher, commonly known as sand making machine, is a high-energy, low-impact shock with international advanced level. Its performance plays an irreplaceable role in various ore fine breaking equipment, and it is the most effective, practical and reliable gravel machine.
As a power-assisting device for the sand production line, the impact crusher naturally cannot escape the attention of people. This equipment is an energy-saving equipment in the current high-efficiency gravel. It is widely used in fine and coarse grinding of metal and non-metal ore, cement, refractory materials, abrasives, glass raw materials, building aggregates, artificial sand and various metallurgical slags. It is especially suitable for construction sand and road sand. In this article, ZK CORP will explain the factors constraints of the life of the impact crusher rotor.
First, the model of the rotor bearing
Since the impact crusher works under severe conditions for a long time, the wear of the rotor bearing is aggravated. However, the rotor bearing is not only expensive, but also difficult to replace, which is liable to cause a loss of production. Therefore, the first choice is to correctly select the model of the rotor bearing. Double-row radial spherical roller bearings have the advantages of strong bearing capacity and good self-aligning performance. ZK CORP impact crusher mostly uses this kind of bearing as the rotor bearing.
Second, the bearing condition of the rotor bearing
The impact load of the impact crusher on the bearing depends mainly on the impulse acting on the rotor and the support flexibility of the bearing housing. Increasing the support flexibility of the bearing housing will reduce the impact load on the bearing. To this end, a rubber plate of appropriate thickness can be added between the bearing housing and the support frame to improve the support flexibility of the bearing housing.
Third, the balance accuracy of the rotor
The impact crusher has a large rotor mass and a high rotational speed. The casting deviation of the rotor body and the mass deviation caused by the installation of the hammer will cause an unbalanced centrifugal force when the rotor rotates. This centrifugal force causes the machine to be forced to vibrate, causing damage to the bearings and other parts, so the rotor of the crusher must be balanced.
Fourth, the cooperation relationship between the rotor bearings
The impact of the broken rotor bearing is mainly the impact load, and the magnitude of the load on the rolling element is different. The rolling element under the combined action of the impact load is the most stressed, and the inner and outer ring races are also the most stressed when they are in contact with the rolling body. Let the inner ring fit tightly, and the outer ring fits loosely, which can effectively reduce the rotor wear.
I believe that everyone knows the "Barrel Law", ZK CORP always firmly believes that every component can be done in order to make the equipment to the best level!