October 28, 2022
The main Crusher Spare Parts paly role of several key accessories
Briefly introduce the names and functions of several key accessories
1. Cheek Plate: The side guard of the jaw crusher is a separate upper guard and lower guard. The upper guard is a right-angled trapezoid, and the right angle is replaced by an excessive arc. The upper guard is short. The lengths of the long sides of the side and the lower side guards are the same and parallel, and the inclination of the oblique sides of the two side guards is the same. When installing and adjusting, there are specially designed limit blocks and mounting holes on the two side guards to ensure stable installation without shifting. When the jaw crusher is working, the side guards made of special materials and specially installed can withstand a large impact force without deformation, and have good tensile strength and toughness, which effectively guarantees the jaw crusher`s performance. use.
2. Frame: There is a rigid frame composed of two longitudinal side walls and two transverse side walls. The rack bears a large impact load during work, and it is required to have sufficient strength and rigidity. Small and medium-sized general use cast steel as a whole Casting, small cast iron can also be used instead.
3. jaw-plate: It is used for directly crushing and processing raw materials. In order to prevent wear and improve the service life of the jaw, both sides of the jaw and the jaw cavity are inlaid with brackets. The brackets are made of wear-resistant materials, and are usually used for small output. White cast iron, high manganese steel for large production capacity.
4. Toggle: The surface of the bracket is usually cast into a wave shape or a triangular tooth shape. When installing, the tooth peaks and tooth valleys of the two brackets are just opposite to each other. Such brackets not only exert extrusion effects on the processing raw materials, but also exert both Bending and splitting effects make the processed raw materials easy to break.
5. Eccentric shaft: The eccentric shaft is the main shaft of the crusher. It is the main part that drives the connecting rod to move up and down due to the huge bending and torsion force. The eccentric shaft of large and medium-scale jaw crushers is usually cast with alloy steel, and the small output is crushed stone. The machine can be produced from high-performance carbon steel, and the suspension shaft can be produced from alloy steel or high-performance carbon steel. The eccentric shaft is the main shaft of the crusher and is subjected to huge bending and torsion force.
6. Flywheel: The flywheel of the jaw crusher is used to store the energy during the empty stroke of the movable jaw, and then used for industrial formation, so that the work of the machine tends to be uniform. The pulley also acts as a flywheel. The flywheel is often made of cast iron or cast steel, and the flywheel of a small computer is often made into one piece. The flywheel is manufactured, and attention should be paid to static balance during installation.
7. Lubrication device: The eccentric shaft bearing usually adopts centralized circulating lubrication. The bearing surfaces of the mandrel and the thrust plate are generally lubricated with grease through a manual oil gun. The swing angle of the movable jaw is very small, which makes it difficult to lubricate between the mandrel and the bearing bush. Several axial oil grooves are often opened at the bottom of the bearing bush, and a ring is opened in the middle to connect the oil groove, and then the oil pump is forced to inject dry butter for lubrication.
Only by fully understanding the internal structure of the crusher and the parts of wearing parts, we can conduct regular inspection and maintenance on these parts in actual production and operation, and replace them in time when problems are found, which can prolong the service life of the crusher and create greater economic benefits.
