Jaw Crusher Working Principle and Discharge Thickness Adjustment Method
Jaw Crusher is a widely used coarse crusher, which can crush all materials below 1500mm. It is a must-have equipment for sand and gravel plants. The output of the small jaw crusher can meet the needs of most users, and the cost performance is relatively high. It is a popular equipment nowadays, and its sales volume is very high. However, there are many problems in the use process. Among them, "equipment selection" and "how to adjust finished product discharge" Thickness" is the point of confusion for most users, and this article will introduce it in detail.
The working principle of jaw crusher and the method of adjusting the thickness?
We all know that the working mode of the jaw crusher is a curved extrusion type. The motor drives the belt and pulley, and the movable jaw moves up and down through the eccentric shaft. The material is crushed or split to achieve the purpose of crushing and discharging. The size of the discharge opening of the jaw crusher refers to the distance between the tooth peak of one jaw plate and the tooth valley of the other jaw plate when the movable jaw plate is close to the fixed jaw plate at the bottom of the discharge opening. Generally speaking, the discharge port of each type of jaw crusher can be adjusted within a certain range. The commonly used methods to adjust the discharge thickness are as follows:
1. Gasket adjustment
Use the jacking bolt to open the adjustment seat, inspect the rear thrust plate support and the rear wall of the frame, put in or take out a set of gaskets of equal thickness, and increase or decrease the number of gasket layers to make the crusher row. The feed opening is reduced or. This kind of adjustment device has a simple and compact structure, and the weight of the whole machine does not increase much, so it is more commonly used.
2. Hydraulic adjustment
The rear thrust plate is used as the safety device of the crusher. Generally, the jaw crusher adopts a hydraulic safety device, which can automatically adjust the size of the discharge opening, which is reliable and easy to discharge faults.3. Use inclined iron to assist adjustment
The transmission device can be used to lift the rear inclined iron and move the front inclined iron horizontally. When the rear inclined iron is lifted or lowered, the size of the discharge port can be adjusted accordingly. This adjustment device can realize stepless adjustment. No need to park.
4. Electronic control adjustment mechanism
The electronic control adjustment mechanism can quickly and effectively realize the adjustment and detection of the jaw crusher, control the particle size series very well, avoid repeated operations, and provide a maximum degree of discrimination and precision.
5. Adjustment of support device
In the bearing part of the jaw Crusher, the sliding bearing cast with babbitt alloy is used, which can withstand a large impact load and is relatively wear-resistant, but the transfer efficiency is low and requires forced lubrication.
The above five methods of adjusting the thickness of the jaw crusher are more commonly used, which can improve the controllability of the jaw Crusher and effectively reduce the resource consumption of the screening operation. However, the jaw crusher is also divided into small and large, and the adjustment methods are also different. The large jaw crusher generally adopts the hydraulic adjustment method, and the small jaw crusher generally adopts the gasket adjustment or the support device adjustment.
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