impact crusher blow bars，Impact crusher is a crushing machine that uses impact energy to crush materials. When the machine is working, driven by the motor, the rotor rotates at a high speed. When the material enters the action area of the blow bar, it collides with the blow bar on the rotor and breaks, and then is thrown to the counterattack device to be broken again, and then bounces off the counterattack liner. Return to the action area of the blow hammer to be broken again. This process is repeated. The material enters the first, second and third counterattack chambers from large to small for repeated crushing until the material is broken to the required particle size and discharged from the discharge port.
The function of the impact plate is to withstand the impact of the material hit by the plate hammer, so that the material is crushed by the impact, and the impact-crushed material is bounced back to the impact area, and the impact crushing is performed again to obtain the desired product particle size. There are many forms of counterattack boards, mainly including broken line and arc shape. The zigzag counter-attack surface can make the materials on each point of the counter-attack board impact in an approximately vertical direction, so the best crushing effect can be
obtained. The arc-shaped counterattack surface can make the material block bounce out of the counterattack plate, forming a fierce impact crushing area in the center area of the circle, so as to increase the free impact crushing effect of the material. The impact plate is generally welded with steel plates. The counterattack surface is equipped with a wear-resistant lining plate, but it can also be composed of counterattack rollers or grate strips. The counterattack surface with grate slits has less fine particle content, which can increase the production capacity of the equipment and save power consumption. However, there are defects such as complex structure, difficult to replace after wear of the counter-attack surface, and rapid wear. The rotor of the impact crusher is mostly made of integral cast steel, the structure is sturdy and durable, it is easy to install the blow hammer, and its quality is large and can meet the crushing requirements. The rotors of small and light impact crushers can also be welded from steel plates.