When the centerline of the shaft and the centerline of the shaft base of the heavy-duty vertical shaft sand making machine are different, and there is an angular error, or the distance between the two supports of the shaft is large and the rigidity of the shaft is small, it is easy to bend or tilt due to force. At this time, self-aligning ball or spherical roller bearings with good self-aligning performance and outer ball bearings can be selected.

The bearing in the heavy vertical shaft sand making machine has its own range of speed, and the bearing itself also has its own limit speed, which is related to the characteristics of the size, type and structure. If the bearing exceeds its own speed, the bearing temperature will rise, and the lubricant will not be able to achieve the lubrication effect. In more serious cases, it can also cause the bearing to jam.

When selecting heavy vertical shaft sand making machine bearings, first determine the size of the bearing, and choose rolling bearings according to the size of the shaft. Generally, roller bearings are used for larger shafts, and ball bearings are used for smaller shafts. And when the bearings of the heavy vertical shaft sand making machine are only subjected to radial loads, deep groove ball bearings, cylindrical roller bearings or needle bearings can be selected.

When choosing the bearing of a heavy vertical shaft sand making machine, first determine the size of the load that the bearing receives on the heavy vertical shaft sand making machine. If the load is relatively large, use roller bearings. When the bearing load is small or medium load Choose bearings made of carburized steel or bainite quenched.

The operator shall not leave the unit when the impact crusher is running. After starting, let the impact crusher idling for 23 minutes first, check whether the rotor rotation is correct, whether the sound is normal, and it can only work after it rotates smoothly at the rated speed. At work, pay attention to the operation of the impact crusher at all times, and feed evenly to prevent blocking the car, and do not overwork for a long time. If there are vibrations, noises, excessive temperature of the bearings and the body, or spraying materials, you should stop and check immediately, and then continue to work after troubleshooting. When the impact crusher is running, the operator is not allowed to leave the unit, nor is it allowed to disassemble the machine during operation to observe the working conditions in the crushing chamber, and the maintenance tools must not be placed on the machine or packing. Operators should not wear gloves. When blockage occurs, it is strictly forbidden to reach into the filling hopper. When feeding, stand on the side of the impact crusher to prevent rebound debris from hurting the face. Do not stop the machine immediately after the work is over. It should be idling for 23 minutes to allow the material in the machine to be completely discharged. Cleaning and maintenance work should be carried out after the machine is stopped.

The fixed operation of the impact crusher should be fixed on the cement foundation. If you change the work place frequently, the shredder and motor should be installed on the base made of angle iron. If the crusher is powered by a diesel engine, the power of the two should be matched, that is, the power of the diesel engine is slightly greater than that of the crusher, and the pulley grooves of the two should be consistent. The outer end surface of the pulley should be on the same plane. Before starting up, check whether the connecting bolts of each part of the impact crusher are tight, whether the tightness of the transmission belt is appropriate, and whether the power cord is in good condition. Whether the motor shaft and the shredder shaft are parallel.