Installation Points For 6 Parts Of Jaw Crusher, Including Ec

Jaw crushers are mainly used for coarse crushing and medium crushing in mining, building materials, infrastructure and other industries, with simple structure and reliable work. Correct installation and standardized operation are the basis for the stable operation of the equipment.

Jaw crushers are usually installed on a cement foundation. Due to the large vibration of the crusher, it is necessary to isolate the foundation of the crusher from the foundation of the factory. When assembling the crusher, the frame of the crusher must be installed on the foundation first. , And then install the other components in order.

1. Jaw crusher rack installation

When installing the crusher frame, some things that can absorb vibration should be placed between the frame and the concrete, such as hardwood, rubber, etc. The horizontal and vertical horizontality of the frame installed on the foundation or on the wooden base must meet Equipment installation requirements. When installing the rack, the horizontal and vertical horizontality on the foundation should be less than 0.2mm.

2. Assembly points of jaw crush eccentric shaft and bearing

Before assembling the shaft and the bearing, the sliding bearing needs to be researched and assembled, and then placed in the sliding bearing housing, and the levelness and coaxiality of its placement are tested by using a level gauge. If the measurement results meet the requirements, Then install the eccentric shaft on the bearing, and check the fit between the shaft and the bearing by applying red lead powder on the journal.

If there are too many high points on the sliding bearing surface, further scraping is needed until the high points between the contact surfaces disappear. Finally, a certain amount of lubricating oil is applied between the bearing seat and the bearing to reduce the wear of the shaft, and the eccentric shaft sliding and The contact area between the racks should not be less than 80%, and the gap between them should be less than 0.07mm.

3. Installation of the connecting rod of the jaw crusher

After the above parts are installed in place, the connecting rod can be installed. The connecting rod and the required assembly position should be carefully checked before the connecting rod is assembled. After there is no problem, the connecting rod is lifted by a crane, and the entire connecting rod is used with gasoline or kerosene. After cleaning the rod, apply a layer of oil on the surface of the connecting rod to ensure that it is installed and lubricated.

Then put the upper bearing, main shaft, upper bearing and connecting rod upper shell, and then hoist the connecting rod, install the connecting rod bolt on the connecting rod and tighten it, for example, after adding a gasket between the upper shell of the connecting rod and the connecting rod, If the fit is not tight and cause oil leakage, the gasket should be processed or reinstalled with a new gasket. If conditions permit, the connecting rod and main shaft parts can be assembled externally and then the whole can be hoisted into the machine using a crane. Shelf.

4. Installation points of jaw broken ribs

The ribs of the broken jaw can be assembled and disassembled by loosening the lever spring nut, removing the spring, and then using a chain or wire rope to tie the lower part of the movable jaw, and then use the crane to pull the wire rope to bring the movable jaw close to the fixed jaw, and the rear rib will automatically Falling off, just repeat the above steps in reverse when installing.

5. The installation points of jaw breaking jaw

First assemble the movable jaw parts accordingly. After assembling the movable jaw, movable jaw shaft, movable tooth plate, rib pad, etc. on the ground, use a crane or a crane to hoist the assembled parts together on the crusher. In the rack.

For sliding bearings, it is necessary to grind and match between the bearing and the housing first, so as to install the sliding bearing in place. At the same time, check the coaxiality and inclination of the sliding bearing assembly, and ensure that the inclination is 0.2mm. It should be less than 0.06mm to complete the assembly of the movable jaw.

6. The installation points of the broken jaw plate

The tooth plate of the jaw crusher is a component directly used for crushing ore. Its structure is simple, but due to frequent contact with the ore, it needs to be replaced frequently. The cross-sectional structure of the tooth plate has two types: smooth surface and lattice surface. It is heavy and needs to be made into a structure that can be easily replaced.

The tooth plate is fixed with bolts or wedges. It is fixed on the front wall of the frame or on the movable jaw, and the contact surface between the two must be straight. If there is a high point in contact, it needs to be dealt with in time. Since the inside of the front wall of the frame is not processed, a soft metal gasket is placed between the back of the fixed jaw tooth plate and the front wall of the frame to ensure the tightness of the combination.

The installation and assembly of the jaw crusher largely determines the performance of the equipment, so the correct installation and operation are very important.