Recently, the market of sand and gravel aggregates is very good. It has entered the peak period of sand and gravel crushing equipment operation. However, many friends still encounter some failures, such as abnormal vibration of the machine. This time we will talk about the common abnormal vibration of cone crushers. the reason.

1,Too much or uneven feeding
When the ore is fed too much and exceeds the load of the cone crusher, the equipment will not be able to crush the materials in the crushing cavity in time, resulting in the accumulation of materials and abnormal vibration. (The bounce of the adjusting ring of the multi-cylinder hydraulic cone crusher is a more obvious manifestation of overload)

When the feeding is uneven, such as concentrated feeding on one side (single-side crushing), or large materials occupying one side and fine materials occupying the other, it will cause machine vibration, and will also cause uneven force on the moving cone of the cone crusher, which will seriously affect the service life.

2, The material is blocked or enters the unbreakable material
When the ore powder content of the cone crusher is too much and damp, due to the small discharge port of the crusher, the discharge port often blocks the ore, which causes the crusher to vibrate frequently.

In addition, when non-crushed objects such as iron, steel and other scraps and large ore are entered in the crushing cavity, the load of the crusher will increase sharply, causing vibration, and even broken shafts and teeth may occur. At this time, it is necessary to s the machine in time for inspection and clean up the hard debris.

3, The bearing temperature of the cone crusher is too high
 In summer, when the weather is hot and the temperature rises gradually, many equipment will have high temperature problems, and the high temperature of the cone crusher bearing will also cause the equipment to vibrate. Therefore, it is necessary to check whether the lubricating oil pipe is clogged and whether the selected grease is suitable. The lubricating oil is too dirty and needs to be replaced in time to prevent impurities from entering the bearing.

 4, The installation of the cone machine equipment is unqualified or deviated from the original position
For the multi-cylinder hydraulic cone crusher, it requires horizontal vibration within +2mm and vertical vibration within +1mm during operation. Failure of the mounting surface to meet the requirements will cause abnormal vibrations such as rack swing.

There are two installation surfaces, one is the foundation installation surface, that is, the installation plane of the vibration damping block; the other is the installation plane of the rack. The flatness of the two installation planes should be within 2mm, and the steel plate can be used to adjust the ones that do not meet the requirements.

 In addition, after a long-term operation of the cone crusher, the secondary concrete layer between the body and the foundation will become loose. The horns of the original installation and leveling run away from the original position with vibration, so that the body is not level. The vibration will increase. Therefore, the basic level should be adjusted regularly in accordance with the installation quality standards of the crusher body to keep the body in a good operating condition.

 5, Improper installation of the coupling of the cone crusher causes disagreement
When assembling, the coupling between the horizontal drive shaft of the cone crusher and the motor shaft should be aligned and installed according to the standard to avoid vibration caused by misalignment.
In addition, if the speed of the drive shaft is too fast, it will cause vibration.

6, The gear meshing gap is too large or too small
 The rationality of the gear meshing clearance will also affect the vibration of the crusher. It must be assembled according to the standard clearance and side clearance, and it cannot be too large or too small, otherwise it will cause the vibration of the crusher.

7, Wear of eccentric shaft sleeve In the operation of the cone crusher, the eccentric sleeve drives the main shaft or the moving cone to provide crushing force. The gap between the inner and outer surfaces of the eccentric sleeve and the main shaft and the frame bushing ensures that the inner and outer sliding surfaces of the eccentric sleeve are formed between the relative sliding surfaces. Stable lubricating oil film to ensure normal operation. Once the eccentric shaft and its related parts are worn out, it may cause equipment vibration and affect work.

8, The clearance between the main shaft and the cone bushing is not suitable
Excessive fit clearance between the main shaft of the cone crusher and the cone bushing will cause unstable operation, which will cause the machine body to vibrate and generate noise. If the clearance is too small, it is easy to cause a shaft holding event.

9, The mating surface of the bowl support frame and the frame is loose
The bowl-shaped supporting frame is the supporting device of the crushing cone. The good technical condition of its mating surface with the frame is of * significance to ensure the normal operation of the crusher. Due to the long-term operation of the cone crusher, the accuracy of the mating surface decreases, and the looseness of the mating surface causes vibration. In order to solve this problem, it is necessary to restore the bowl-shaped support frame and the mating surface of the frame according to the original size standard.