How to adjust the size of discharge opening of jaw crusher

Method 1: The main shaft of the jaw crusher is located at the plunger in the hydraulic cylinder, by changing the amount of oil under the plunger, the up and down direction of the crusher can be changed, so that the size of the discharge opening of the crusher can be changed. When overloaded, the pressure under the main shaft will increase, pushing the oil into the reservoir inside the hydraulic drive, thus lowering the crushing cone, increasing the discharge opening, and sending the uncrushed material with the material into the crusher, thus achieving the safety purpose.

Method 2: Adopting mechanical method, the upper end of its main shaft is equipped with an adjusting nut, by turning the adjusting nut, the crushing cone will move downward or upward, so that the outlet will follow to increase or decrease; in case of overload, the safety purpose will be achieved by cutting off the safety pin on the driving pulley.

Due to the up and down movement of the jaw plate of the jaw crusher has the function of accelerating the discharging of materials, and its upper transverse stroke is low, it is easy to crush the larger lumpy materials, so it is more efficient than the double curved plate crushing. Its shortcoming is that the wear of the jaw plate is faster, and the material will be over-crushed phenomenon, which leads to increased energy consumption. To prevent overloading of the main parts of the machinery.

In case of overloading of the jaw crusher, the cone shell compresses the spring, which itself rises, thus enlarging the discharge opening and removing the uncrushed material. Discharge is adjusted by means of an adjusting sleeve. The size of the discharge opening is changed by rotating the adjusting sleeve fixed to the shell and utilizing the threads on its outer edge to push the shell up and down. The safety and adjustment method of hydraulic jaw crusher is the same as that of hydraulic cone crusher.

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