Brief introduction to the working principle and structure of cone crusher

【Cone Crusher】-Introduction to the working principle and structure of cone crusher
 
Cone crusher is a kind of advanced hydraulic crusher with high power, large crushing ratio and high productivity. This machine is developed on the basis of digesting and absorbing various types of cone crushers in various countries with a relatively advanced level in the 1980s. It is obviously different in design from the traditional cone crusher, and it concentrates the main advantages of various types of cone crushers known so far. It is suitable for fine crushing and very fine crushing of hard rocks, ore, slag, refractory materials, etc.

Brief introduction to the working principle and structure of cone crusher
 
The cone crusher uses the working surface between the movable cone and the stationary cone to crush ore. The moving cone is supported on a spherical bearing and fixed on a suspended vertical shaft, the vertical shaft is placed in the eccentric sleeve, and the eccentric sleeve is placed on the thrust bearing.
 
The moving cone and the vertical shaft are driven by an eccentric shaft sleeve. The eccentric shaft sleeve is driven by a horizontal shaft and a belt pulley through a bevel gear. The pulley is driven by a motor through a V-belt. The lower part of the vertical shaft is put into the eccentric sleeve, and when the eccentric sleeve rotates, a conical surface is drawn with the shaft.
 
Therefore, the ore is crushed when the moving cone approaches the stationary cone. The casing is composed of upper and lower parts, which are connected by bolts. There are strong springs on the bolts. The function of the spring is to prevent damage to the crusher (such as the main shaft) when metal or other hard objects fall into the crushing cavity. If metal blocks or other hard objects (nuts, drill bits, etc.) enter the crushing cavity together with the ore, the immovable cone will be lifted and the discharge opening can be enlarged to discharge it. Sometimes the cone crusher uses oil pressure (or water pressure) to adjust the size of the discharge port.
   
The ore is dropped into the machine from the ore port through the distribution plate. The distribution plate is installed on the upper end of the vertical shaft. Due to the rotation of the vertical shaft, it obtains vibration and distributes the ore evenly around the cone. With the help of hinge rods and hinges with handles, the immovable cone can be raised or lowered to adjust the width of the discharge port.
 
All parts are made of cast steel. The working surfaces of the moving cone and the fixed cone are inlaid with manganese steel liner to protect the cone from wear. The liner can be replaced after it is worn out. When replacing, the liner and the cone surface are poured and melted. The lead makes them adhere tightly.
 
The fine crushing cone crusher is also called short-head cone crusher, or "circular mill". Its structure is basically the same as that of the medium-crushing cone crusher. The difference lies in the shape of the moving cone and the fixed cone. The moving cone and the fixed cone of the short-head cone crusher are relatively short, and the parallel belt between the two cones is relatively long, and the mine feed and discharge ports are relatively small, so finer products can be obtained.
   
In addition to the standard and short-head cone crushers, there is a medium-sized cone crusher between them, which can be used for both medium and fine crushing. The main difference between standard, medium and short head cone crushers is the different section shape of the crushing cavity. Therefore, the grain size of the ore and the grain size of the discharge are also different.