The three most important knowledge of cone crusher wearing parts

What are the wearing parts of cone crusher? What is their role in the work of cone crusher?

In the mining equipment, cone crusher as high efficiency, low energy consumption, good quality crushing equipment, suitable for hard materials. Cone crusher in the daily stone crushing work, cone crusher wearing parts wear is inevitable for us. What are the wearing parts of that cone crusher? What will be the impact on the cone crusher? How to use can make the cone crusher’s service life longer?

Cone crusher structure

The cone crusher is also called cone crusher, cone machine, cone crusher, the structure is mainly composed of frame, horizontal shaft, moving cone, balance wheel, eccentric sleeve, upper crushing wall (fixed cone), lower crushing wall (moving cone), hydraulic coupling, lubrication system, hydraulic system, control system and other parts. During the working process, the eccentric sleeve is driven by the transmission device, and the moving cone is forced by the eccentric sleeve to do rotational oscillation. The material crushed to the required size falls under its own gravity and is discharged from the bottom of the cone.

What are the cone crusher wearing parts?

Cone crusher wearing parts: crushing chamber, crushing wall, molar wall, main shaft and cone bushing, thrust disc and gear, frame and spherical bearing, eccentric shaft sleeve and straight bushing, shaft sleeve, cone sleeve, what is the role of these parts in the work of cone crusher, we will now analyze.

The role of cone crusher wearing parts

Crushing chamber

The wear of the parallel zone of the crushing chamber is more serious and the larger wear of the fixed cone is at the entrance of the parallel zone, and the larger wear of the dynamic cone liner is at the upper side of the discharge port. The entire parallel zone wears more than the upper chamber. After the crushing cavity is worn, the cavity shape of the crusher changes greatly and loses its original shape completely, which seriously affects the crushing effect of the crusher.

Crushing Wall

The crushing wall is fixed to the cone body by the cone head, and a zinc alloy is cast between the two.

Mortar wall

The crushing wall and mortar wall are the parts that directly contact the material and are the main wear parts in the cone crusher. When the cone crusher is in operation, the crushing wall will do the trajectory movement, and the distance between the crushing wall and the mortar wall is sometimes close and sometimes far away, the material is crushed by the crushing wall and the mortar wall, and some materials will be discharged from the outside discharge port. The wall can be replaced on site by screwing down the adjusting sleeve installed on the upper frame (note the counterclockwise direction), removing the upper chamber hopper assembly, lifting the adjusting sleeve with lifting equipment, removing the adjusting sleeve pallet bolt, then the wall can be removed and replaced, the assembly should be washed on the outer surface, the adjusting sleeve thread surface is greased and fixed in reverse order.

Main shaft and cone bushing

Under normal operating conditions of the crusher, the main shaft and cone bushing have obvious wear marks at the top of the cone bushing down to a height of about 400mm. If the main shaft and cone bushing are worn heavily in the lower part and lightly in the upper part, there will be a mild instability of the cone and the crusher will not operate normally. If there is partial contact between the main shaft and the cone bushing at the lower end, the cone bushing will be cracked and damaged.

Thrust Disc and Gear

The thrust disk wears more seriously along the outer circle, and wears faster than the inner circle because of the large linear speed of the outer circle. And because of the skew of the eccentric bushing and aggravate its outer ring wear. When the crusher is running, the large bevel gear with a straight bushing gap for the general radius around the crusher to make circular motion, which will make the gear in the process of additional shock vibration and additional wear, shortening the gear life.

Frame and Spherical Bearing

The wear of the spherical tile is a gradual process from the outer ring to the inner ring. The use of late, may make the dynamic cone destabilization, the main shaft stuck in the cone bushing lower mouth, resulting in the cone bushing lower mouth crack and damage, and even produce “flying car” phenomenon, spherical tile damage, in addition to normal wear is to produce cracks.

Eccentric bushing and straight bushing

The wear of the eccentric bushing is shown in the direction of the height of the eccentric bushing, the upper part of which is heavily worn and the lower part is slightly worn. The degree of upper wear also decreases from top to bottom. During the operation of the cone crusher, the straight bushing often moves upwards and cracks are produced in the straight bushing. When the straight bushing moves upward, it is more likely to cause cracks, but when the straight bushing cracks, the debris produced will cut the surface of the center hole of the frame and make it out of round; the cracked debris will damage the eccentric bushing especially seriously, which will deteriorate the working condition of the whole machine and even cause serious accidents.

Shaft sleeve

Cone crusher sleeve sleeve wear will seriously affect the production, sleeve wear to a certain extent to be replaced in a timely manner, the replacement of the sleeve is also to certain skills, in the removal of the sleeve, preferred to isolate the cutting ring of the sleeve to prevent damage to the main shaft, after the iron bar counterclockwise rotation can easily remove the sleeve.

Taper sleeve

Taper bush should be regularly checked and replaced in time, according to the hardness of the material processing and the daily working hours, to determine the replacement cycle. To prevent the bushing from rotating when replacing it, zinc alloy should be added inside, and no gap should be left between the cone bushing and the eccentric shaft of the cone crusher.

The above is the tip about cone crusher, crushing wall and molar wall are the important parts in cone crusher, also replace more wearing parts. During its operation, it should be noted that the material put into the equipment must meet the crushing requirements, and it is strictly forbidden to have too much hardness, too much moisture or other non-crushing materials into the crushing cavity, otherwise it will cause the crushing wall molar wall to fall off and the equipment to stop.

Note: The cone crusher must be fed evenly, the ore must be given in the middle of the distribution plate, and the material must not act directly with the crushing wall and the mortar wall to prevent uneven wear.