What are the reasons for the imbalance of the moving cone of the cone crusher?

The imbalance of the moving cone refers to the unsteady operation of the moving cone during production. The imbalance of the moving cone will seriously affect the production process. So what are the reasons for the imbalance of the moving cone of the cone crusher?

1. Poor contact

1. The moving cone ball has poor contact with the spherical bearing. The moving cone of the newly installed cone crusher runs smoothly, but after a period of work, the eccentric shaft sleeve and the frame bushing are worn, causing the intersection of the eccentric axis of the eccentric shaft sleeve and the center line of the frame to move downward, causing the eccentric axis and the ball center of the spherical bearing to not coincide, causing the imbalance of the moving cone.

2. Poor contact between the cone bushing and the main shaft. It can be seen from the scrapped cone sleeve that during the loaded operation of the cone crusher, the moving cone or eccentric sleeve is prone to skew, resulting in excessive contact stress between the lower end of the main shaft and the lower end of the cone bushing, which is easy to break the main shaft of the cone crusher and cause the imbalance of the moving cone.

2. Reasons due to the nature of work

When the cone crusher is crushing ore, the moving cone will generate inertia force and inertia moment on the fixed suspension point during operation. These forces act on the frame, which can easily cause the frame to vibrate and the eccentric sleeve to deflect. Although balancing measures are taken in the design to reduce the impact of this inertia force, it is inevitable that the moving cone will be unbalanced after the equipment has been working for a long time.

3. Poor lubrication

If the gap between the cone bushings of the moving cone of the cone crusher is very small, it will affect the normal operation of the moving cone in production. On the other hand, if the moving cone bushing and the main bearing are not well lubricated after working for a long time, or the moving cone is not lubricated enough due to deterioration of the lubricating oil, etc., the moving cone will have forced friction, and the violent friction between the moving cone and other components will cause the moving cone to be unbalanced.