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Cone crusher
Aug 16, 2018

The cone crusher is suitable for the crushing of raw materials in the metallurgy, construction, road construction, chemical and silicate industries. It is divided into many models according to the different crushing principles and different product particle sizes. The crusher is widely used in many sectors such as mining, smelting, building materials, roads, railways, water conservancy and chemical industries. The cone crusher has large crushing ratio, high efficiency, low energy consumption and uniform product size. It is suitable for medium and fine crushed ores and rocks.


a brief introdction

With the continuous development of mining technology, cone crushers are also divided into several types, including spring cone crusher, rolling cone crusher, hydraulic cone crusher and composite cone crusher. PY cone crusher, Simmons cone crusher, composite cone crusher, standard hydraulic cone crusher, single cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher and many other models. The hydraulic crusher is developed on the basis of digesting and absorbing various types of cone crushers with international advanced level in the 1980s. It is clearly different in design from the structure of a conventional cone crusher and concentrates on the main advantages of the various types of cone crushers known to date. It is suitable for fine crushing and ultra-fine crushing of hard rock, ore, slag, refractory and so on.


Introduction of cone crusher structure: The structure of cone crusher mainly includes frame, horizontal axis, moving cone, balance wheel, eccentric sleeve, upper broken wall (fixed cone), lower broken wall (moving cone), hydraulic coupling, Lubrication system, hydraulic system.


working principle

During the working process of the cone crusher, the motor drives the eccentric sleeve to rotate by the transmission device, and the moving cone rotates under the eccentric bushing. The section of the moving cone close to the static cone becomes the crushing cavity, and the material is subjected to the moving cone and The static cone is crushed by multiple extrusions and impacts. When the moving cone leaves the section, the material that has been broken to the required particle size falls under its own gravity and is discharged from the bottom of the cone.


Operating mechanism

When the cone crusher is working, the horizontal axis of the crusher is driven by the motor through the V-belt and the pulley. The horizontal shaft drives the eccentric sleeve through the large and small gears. The cone shaft of the crusher produces the eccentricity under the action of the eccentric sleeve. Therefore, the surface of the broken wall is sometimes close to the surface of the fixed cone, and sometimes away from the surface of the fixed cone, so that the stone is continuously crushed, broken and impacted in the crushing chamber. The crushed material is discharged from the discharge port at the lower part of the crusher under the action of its own weight. The upper cavity of the cone crushing motor cone is supported on the spherical bearing shell at the upper end of the fixed main shaft, and the lower cavity is sleeved outside the eccentric bushing, and the movement thereof is directly driven by the eccentric bushing. When the eccentric bushing rotates around the main shaft, the moving cone not only rotates with the eccentric bushing around the center line of the machine, but also rotates around its own axis, which moves around the center of its spherical support for spatial swiveling motion. The axis of the moving cone intersects the center line of the main axis at a fixed point, that is, the center point of the spherical surface, and the angle between them is the precession angle. When the crusher is running, the axis of the moving cone moves conically with respect to the center line of the machine, and the cone top is the center of the spherical support, which remains stationary during the movement of the moving cone. Therefore, the motion of the moving cone can be regarded as the rotation of the rigid body around the fixed point, that is, the movement of the moving cone is composed of two kinds of rotary motions: precessional motion or implicated motion (rotational motion of the moving cone around the centerline of the machine) and rotation motion or relative Movement (the moving cone makes a rotational motion around its own axis).


In the case of no-load operation of the cone crusher, the rotation of the moving cone is determined by the frictional torque of the spherical bearing and the frictional force of the eccentric bushing to the moving cone. If the torque is large, the moving cone is the torque. The direction is rotated. Under normal conditions, the moving cones rotate in the direction of rotation of the eccentric bushing, and the speed of rotation is determined by the difference between the two moments. The cone crusher is between the spherical bearing and the lower cone of the moving cone to control the rotation of the moving cone. In the case of load operation, the frictional moment of the stone on the cone of the moving cone far exceeds the frictional moment generated by the eccentric sleeve on the moving cone.


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