Good Performance High Strength Double Roll Crusher

The roller crusher has the advantages of small size, large crushing ratio (5-8), low noise, simple structure, easy maintenance, high productivity (1-2 times higher than the productivity of my country's 2PGC tooth roller crusher), and the crushed materials It has the characteristics of uniform particle size, low over-crushing rate, easy maintenance, sensitive overload protection, safety and reliability. This tooth roller crusher is suitable for coal, metallurgy, mining, chemical industry, building materials and other industries, and is more suitable for crushing raw coal (including gangue) in large coal mines or coal preparation plants.
The toothed roller crusher has a large crushing capacity. The motor and reducer are connected by a limited-distance hydraulic coupling to prevent power overload. The sensor overload protection ensures safety and reliability. The gear roller spacing is hydraulically adjusted, and the gear roller bearings are lubricated centrally. Optimized tooth shape design, selective crushing by tension and shear force, high efficiency, low consumption, and uniform granulation.

working principle
The double-smooth roller crusher uses a pair of oppositely rotating round rollers to crush materials. The material falls between the two rollers through the feeding port on the upper part of the equipment. It is brought into the gap between the two rollers by friction and is gradually crushed. The finished material leaks out from the lower part. When encountering materials that are too hard to be broken, the rollers will automatically give way, causing the gap between the rollers to increase, and the hard materials will fall. With the action of the hydraulic cylinder or spring, the rollers will return to the original gap, thereby protecting the machine and adjusting the gap between the two rollers. , you can control the maximum particle size of the product.
The four-roller crusher uses two pairs of oppositely rotating round rollers to perform crushing work.
Roller crusher structure
Figure 1 shows a two-roller (smooth) crusher. It consists of crushing roller, adjustment device, spring safety device, transmission device and frame.

In summary, impact crushers are powerful machines that can efficiently crush a variety of materials. They are widely used in various industries and are known for their high production capacity and quality end products.

The crushing roller is a parallel installation of two oppositely rotating rollers on a horizontal axis. It is the main working mechanism of the crusher. One roller has a movable bearing and the other roller has a fixed bearing. The crushing roller is composed of a shaft, a hub and a roller skin. The rollers are keyed to a hub with a tapered surface. The roller skin is fixed on the hub, and bolts and nuts are used to secure them together. Since the roller skin is in direct contact with the material, it needs to be replaced frequently, and it is generally made of high manganese steel or special carbon steel with good wear resistance.
The adjustment device is used to adjust the gap size (discharge opening) between the two crushing rollers. It controls the size of the crushed product by increasing or decreasing the number of gaskets between the two bearing pull rods of the movable roller and the frame. granularity.

The spring safety device is a very important component of the roller crusher. The tightness of the spring plays an important role in the normal operation and overload protection of the crusher. When the machine is operating normally, the pressure of the spring should be able to balance the force generated between the two rollers to maintain the gap at the discharge port and make the product particle size uniform. When the crusher enters non-crushed objects, the spring should be compressed, forcing the movable crushing roller to move laterally and the width of the discharge opening to increase, ensuring that the equipment is not damaged. After the non-broken objects are removed, the spring returns to its original shape and the machine works as usual. During the operation of the crusher, the safety spring is always in a vibrating state, so the spring is prone to fatigue damage and must be inspected frequently and replaced regularly.

Technical Parameters