Coarse Crushing Double Roller Crusher Soft Rock Crushing Environmental Friendly

Device Information

Maintenance

The Double Roller Crusher requires frequent maintenance of the roll faces while in operation. The tooth plate or tooth ring of the roll crusher can be replaced or turned around for use. When the teeth are worn to a certain degree, they must be replaced or repaired, otherwise it leads to uneven size of crushing products, increased power consumption, and decreased production capacity. Some machines are also equipped with overlay welding device, which can be repaired directly on the machine. Some bare face roll crushers are equipped with roll automatic axial reciprocating moving device to make the roll surface wear evenly.

When the rolls are worn, the width of the discharge opening increases and the movable rolls need to be adjusted (for single roll crushers, the jaws are adjusted). When adjusting, attention should be paid to keep the two rolls parallel to each other to prevent skewing.

For Double Roller Crusher with sliding bearings, attention should be paid to the roller bearing clearance. The top clearance between the roller shank and journal is usually 1/10000 to 1.5/10000 of the journal diameter, and the side clearance of the shank is 1/2 to 1/3 of the top clearance.

Technical Reference Data

The Working Principle of Roller Crusher Machine

The working principle of a roller crusher machine, also known as a roll crusher or double roll crusher, involves the compression and shearing forces applied to the material being crushed. Here's a breakdown of the working principle:

Two Rotating Rollers: A roller crusher consists of two cylindrical rollers that rotate in opposite directions. The rollers are typically mounted on a sturdy frame and can be arranged in a parallel or staggered configuration.

Material Feed: The material to be crushed is fed into the top of the crusher between the two rollers. It can be fed by a conveyor belt, depending on the specific setup.

Crushing Action: As the rotating rollers move, they compress the material between them. The material is drawn into the gap between the rollers and is subjected to both compressive and shearing forces. The compressive force exerted by the rollers crushes the material, while the shearing force breaks it apart.

Size Reduction: The material is crushed and broken into smaller particles as it passes through the gap between the rollers. The size of the final crushed product is determined by the gap between the rollers, which can be adjusted to control the desired output size.

Discharge: Once the material is crushed to the desired size, it exits the crusher through the bottom discharge opening. The crushed material can then be further processed or conveyed for subsequent use.
Optional Features: Some roller crushers may have additional features to enhance their performance or ease of operation. These can include adjustable gap settings to control the output size, a feeding mechanism to ensure a consistent flow of material, and safety devices to prevent damage due to overloading or tramp material.

The working principle of a roller crusher machine relies on the compression and shearing forces generated by the rotating rollers. This crushing action effectively reduces the size of the material, making it suitable for various applications in industries such as mining, quarrying, construction, etc.

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