When the cone crusher works, the horizontal shaft of the crusher is driven by a motor through a V-belt and a pulley. If the horizontal shaft is too large, the pinion drives the eccentric sleeve to rotate, and the cone shaft of the crusher oscillates eccentrically under the action of the eccentric sleeve, so that the surface of the crushing wall is sometimes close to the fixed conical surface, and sometimes far away from the fixed conical surface, so that the stone is continuously crushed by extrusion, crushing and impact in the crushing cavity. The crushed materials are discharged from the discharge port at the lower part of the crusher under the action of self-weight. The upper cavity of the cone of the cone crusher motor is supported on the spherical bearing bush at the upper end of the fixed spindle, and its lower cavity is sleeved outside the eccentric shaft sleeve, and its movement is directly driven by the eccentric shaft sleeve. When the eccentric shaft sleeve rotates around the spindle, the moving cone not only rotates around the machine center line with the eccentric shaft sleeve, but also rotates around its own axis, and the moving cone rotates around its spherical support center in space. The axis of the moving cone intersects the center line of the main shaft at a fixed point, that is, the center point of the sphere, and the included angle is the precession angle. When the crusher is running, the axis of the moving cone moves on a conical surface relative to the center line of the machine, and the top of the cone is the spherical support center, which always remains static during the movement of the moving cone. Therefore, the motion of the moving cone can be regarded as the rotation of a rigid body around a fixed point, that is, the motion of the moving cone consists of precession motion or implicative motion (the moving cone rotates around the center line of the machine) and rotation motion or relative motion (the moving cone rotates around its own axis). When the cone crusher is running at no load, the rotation of the moving cone is determined by the friction torque of the spherical bearing and the friction torque of the eccentric shaft sleeve. Which torque is greater, the moving cone rotates in the direction of this torque. In general, the power cone rotates along the rotating direction of the eccentric shaft sleeve, and the rotating speed depends on the difference between the two torques. In this type of cone crusher, the upper bushing of the moving cone is added between the spherical bearing and the lower bushing of the moving cone to control the rotation of the moving cone. Under the condition of running with load, the friction torque of stone on the conical surface of dynamic cone far exceeds that produced by eccentric shaft sleeve. At this time, the moving cone rolls along the material layer with its generatrix as the clockwise axis, which is opposite to the rotation direction of the eccentric shaft sleeve. The rotating motion of the moving cone can make the product particle size uniform and the liner wear uniform.
structure
1, higher productivity and better quality.
Structural diagram of cone crusher
2. Due to the safety device, the downtime is greatly reduced.
3. The machine body is made of cast steel, and the heavy parts are provided with reinforcing ribs.
4, including regulator, which can quickly adjust the particle size of crushed material.
5. Provide spring protection device.
6. It has a complete lubrication system, which will automatically close when the temperature is too high or the flow rate is too slow.
7. The internal structure has good sealing performance, which can effectively protect the equipment from small particles such as dust.
8. Long service life and strong applicability.
As shown in figure 1, cone crusher is mainly composed of frame, transmission shaft, eccentric sleeve, spherical bearing and crusher.
Structural schematic diagram of cone crusher
Crushing cone, adjusting device, adjusting sleeve, spring, blanking port, etc.
(1) Crusher main frame assembly: The crusher main frame consists of an upper frame and a lower frame, which are connected by hydraulic cylinders and internally provided with wear-resistant lining plates and protective covers; The upper frame is welded, the upper opening is welded with wear-resistant copper plate, and the lower frame is integrally cast steel.
(2) Spindle assembly: the spindle and the center wheel of the lower frame of the main frame are assembled with a small conical surface, and the spindle is provided with axial and radial lubricating oil holes.
(3) Assembly of eccentric shaft sleeve: the eccentric shaft sleeve is internally provided with a high-lead bronze bushing fixed by screws; A large bevel gear and a thrust bearing are installed at the lower part through bolts, wherein the upper thrust bearing is forged steel and the lower thrust bearing is high lead bronze; In addition, the eccentric shaft sleeve is also equipped with a counterweight assembly fixed by bolts, which is filled with lead and equipped with a wear-resistant protective gasket.
(4) Moving cone assembly: the upper part of the moving cone is connected and fixed with the feeding plate assembly by bolts, and the lower part is provided with a spherical bearing bush, which can be matched with a spherical steel tile installed in the sleeve; A movable cone bushing made of high manganese steel is installed outside the movable cone, and the gap between the movable cone and the bushing is filled with epoxy resin; The upper and lower high lead bronze bushings are installed in the moving cone.
(5) Fixed cone assembly: the feed hopper is installed at the upper part of the fixed cone; High manganese steel wear-resistant lining board fixed by large diameter bolts is installed inside, and epoxy resin is filled between the fixed cone and the lining board; The outer side of the fixed cone is a trapezoidal thread matched with the adjusting ring.
(6) Adjusting ring: The adjusting ring is an assembly consisting of adjusting ring, clamping ring, cam follower and hydraulic motor. Trapezoidal threads are arranged in the snap ring and can be connected with the fixed cone; The upper part of the adjusting ring is provided with a main frame fixing pin and a guide rod to prevent the adjusting ring from rotating in the main frame.
(7) Lubrication device of the unit: composed of lubricating oil tank, motor oil pump, filtering device, cooling device and control device. For example, the cone crusher of Yantai Xinhai mining machine adopts dry oil or water sealing methods to prevent dust and impurities from entering the human body and ensure the cleanliness of lubricating oil.
(8) Horizontal transmission shaft assembly: high-power main drive motor. The small bevel gear on the horizontal shaft drives the large bevel gear and the eccentric shaft sleeve through the triangle pulley transmission device. The box of the horizontal shaft is an integral cast iron, which is fixed on the main frame by bolts.
(9) Hydraulic clamping frame and over-iron releasing device: the upper parts of the adjusting ring are connected with the main frame of the crusher through double-acting hydraulic cylinders.
(10) adjusting mechanism assembly: the pinion is driven by the hydraulic motor, and the pinion drives the big gear ring on the adjusting cover, thus driving the fixed cone to rotate, thus adjusting the gap between the fixed cone liner and the moving cone liner.
(1 1) Hydraulic control station: The control station includes oil tank with oil gauge, motor oil pump, filtering device, energy storage device, control device, pressure switch and safety protection device. A junction box and a button control cabinet are also installed beside the crusher.