Cone crusher maintenance and precautions

Precautions when working on the crusher:
1. The ore must be in the middle of the distributor tray. It is not allowed to directly feed the ore into the crushing chamber because it is easy to overload the crusher and cause the liner to wear unevenly.
The correct conditions for ore supply are:
①. The ore is evenly dispersed in the crushing chamber through the distributor plate.
②. The ore that is fed cannot exceed the level of the rolling wall.
2. The maximum feeding port size of the crusher is not allowed to equal the size of the port (the maximum size of the port is ≤85% to the port size). Otherwise it will result in:
①. The output of the crusher is reduced.
②. Damage to some parts of the crusher.
3. crusher is not allowed to start the load, load start will cause an accident.
4. When parking, the feeder must be stopped first, and after the ore that has entered the crushing chamber is broken and discharged, the crusher is stopped.
5. crusher work should always check the working conditions of thin oil lubrication station, find problems and deal with it in time.
(1) Output of crusher
The output of the crusher is related to the feeding method, the feeding granularity, the size of the discharge ore, the physical, mechanical properties, and temperature of the material. The scope of change is very large. The output of a given factory is roughly determined under the specified conditions. the amount.
(2) Replacement of Rolling Walls
The U-shaped bolts on the rolling wall are placed on the adjusting sleeve, and the epoxy resin is injected between them to make them tightly combined. When newly installing or changing the rolling wall, the tight condition should be checked after working for 6 to 8 hours. And tighten the U-bolt again.
(3) Replacement of cone crushing wall
The conical crushing wall is fixed on the conical body with a conical head. After the epoxy resin is newly installed or the newly replaced conical crushing wall is working for 6 to 8 hours, the conical crushing wall should be inspected for its tightening condition. Fasten.
(4) Gear meshing
Due to friction, wear of the thrust bearing copper disc affects the change of the gear clearance. In order to ensure that the gear engagement must be added on the bottom cover, the thickness of the shim should be equal to the wear amount of the thrust bearing copper disc.
(5) Bowl bearings and sealing devices
When installing a bowl-shaped bearing, take care not to damage the oil-retaining ring by the wire rope (you can use hardwood or other material to support between the wire ropes).
During assembly, the support sphere shall be scraped to ensure that the broken cone and the bowl-shaped spherical surface contact the inner ring in the outer circle to ensure an annular gap of 0.35-0.5 mm.
The bowl-shaped bush is fixed on the bowl-shaped bushing with surrounding babbitt-filled pins to prevent the bowl-shaped bush from loosening in the circumferential direction.
(6) rack bushing
The third stage transition fits between the frame bushing and the frame body. In order to prevent the rotation of the bushing, zinc alloy is injected into the upper groove of the bushing. When replacing the new bushing, the actual size of the frame body should be prepared, because the cone crusher passes Prolonged work and handling will inevitably lead to changes in the coordination relationship, if the gap is too large will cause the liner to break.
(7) spindle bushing
Spindle bushes and empty eccentric shafts must be combined to inject zinc-aluminum alloy to prevent the bushes from rotating. The zinc-aluminum alloy should be filled with all gaps, and the bushings may be deformed due to the hot zinc aluminum alloy. Therefore, the new bushes should be checked and dimensioned, and d1, d2, and B should be promptly corrected. When manufacturing the parts, the actual dimensions of the inner diameter of the eccentric bushing should be adjusted to maintain the original fit.

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