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Factors affecting the output of jaw crusher

2020-10-23 15:59:09
Crushing force is one of the main parameters to measure the production capacity of jaw crushers. In actual production, the crushing force is affected by many factors, resulting in unsatisfactory crushing results. So what are the factors that affect the crushing force of the jaw crusher?

1. The mode of action on the material. Al* all rock and mine crushing uses mechanical crushing methods, and the action modes of crushing machinery include crushing, splitting, breaking, grinding, peeling, and impact. For hard ores, it should be broken with bending and impact; for brittle ores, bending and splitting are more advantageous; for ores with *er toughness and viscosity, grinding and stripping is better. The jaw crusher is mainly crushed, combined with bending, and the different ways of acting on the material determine the difference in crushing force.

2. The law of movement of jaws. The trajectory distribution of each point on the movable jaw is more reasonable, and its horizontal stroke is gradually reduced from to bottom along the jaw surface of the movable jaw, which just meets the requirement of increasing the compression amount when crushing large pieces of material, and it moves when discharging. The lower end of the jaw will move downwards. The staff of Red Star Heavy Industry said that analyzing the size of the crushing force has important guiding significance for improving the crushing effect of the jaw crusher. The upper part of the movement track is approximately a round ellipse, along the crushing The cavity is downward, and the trajectory of each point on the moving jaw is elliptical.

3. The nature of the material. The properties of materials include viscosity, hardness, compressive strength, etc. Different materials have different compressive strengths and the resulting crushing force is also different. Therefore, the calculation formula of crushing force should include the parameters of the mechanical properties of the material. In addition, the particle shape of the material will also affect the crushing force of the jaw crusher.

4. Movement of the tooth plate. When the movable tooth plate moves, the force of the tooth plate is not synchronized between the upper and lower parts, and is deviated from each other in some sections. The crushing stroke produces crushing force, and the discharging stroke does not produce crushing force, so the crushing force is in different intervals. The size is not the same.
 
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