Basic structure and working principle of medium and fine crusher cone crusher

Figure 2-6 is a cross-sectional view of the medium crush cone crusher . Its crushing action is basically the same as that of the gyratory crusher , and the working face between the movable cone 1 and the fixed cone 2 is used for crushing. The moving cone is supported on the spherical bearing 3 and is fixed to a suspension vertical shaft 4, which is placed in the eccentric sleeve, and the eccentric sleeve is placed on the thrust bearing 15.

The moving cone is driven by the eccentric bushing 5 together with the vertical shaft, and the eccentric bushing is driven by the horizontal shaft 7 and the pulley and via the bevel gear 6. The pulley is driven by a motor via a V-belt. The lower part of the vertical shaft is fitted into the eccentric sleeve, and when the eccentric sleeve is rotated, a conical surface is drawn by the shaft. Therefore, the ore is crushed when the moving cone 1 is programmed to move the cone. The casing is composed of upper and lower parts 8, 9 and is connected by bolts 10. The bolt has a strong spring sleeve 11, the action of the spring when a metal or other hard objects falling into the crushing chamber without damage to the crusher (spindle, etc.). If a metal block or other hard object (nut, bit, etc.) enters the crushing chamber together with the ore, the fixed cone is lifted and the discharge opening is enlarged to discharge it. Sometimes the cone crusher uses a hydraulic (or water pressure) device to adjust the size of the discharge port.

The fine cone crusher is also called the short-head cone crusher, or "round grinding". It is basically the same as the structure of the medium crush cone crusher, and the difference is only that the shape of the moving cone and the fixed cone are different. 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 feeding port and the discharging port are relatively small, so that a thin product (5-10 mm) can be obtained. .

In addition to the standard and short-head cone crushers, there is also a medium-sized cone crusher between them that can be used for both medium and fine crushing. The main difference between standard, medium and short round crushers is the different cross-sectional shapes of the crushing chamber. Therefore, the feed rate and the discharge size are also different. Figure 2-7 shows the fracture profile of the three crushers.