Jaw crusher is used to crush materials through the extrusion between jaw plates. When the jaw plates are separated, the crushed stones smaller than the jaw plate spacing can fall naturally and be discharged. This crushing principle is called bending extrusion crushing. Driven by the eccentric shaft, the movable jaw plate keeps approaching and extruding the material toward the fixed jaw in an elliptical motion track. The pressure on the material above the jaw plate is small, and the material after extrusion will move downward for a certain distance. When the two jaw plates get closer, the material will be squeezed more and more, and the qualified material after continuous extrusion will be discharged when the jaw plates are separated.

The discharge port of each type of jaw crusher has a certain adjustment range. By adjusting the size of the discharge port, the thickness of the finished product of jaw crusher can be adjusted. Generally, it can be adjusted according to the material demand. Here we will introduce several commonly used adjustment methods.

How to adjust the thickness of finished products by jaw crusher

1. Use the gasket to adjust the width of the discharge port

The method is to add or reduce a group of adjusting pads behind the thrust plate support, so that when the thrust plate retreats, the discharge opening will be widened or narrowed. The adjusting width is generally the same as the increased or reduced lining plate width. This method is simple to operate, and does not increase the equipment weight, and can play the role of changing the discharge particle size.

2. Adjust the width of the discharge opening by the movement of the inclined iron

The front inclined iron can only move horizontally, so when the rear inclined iron is lifted, it will drive the front inclined iron to push forward along the guide groove, thus driving the thrust plate and movable jaw to approach the fixed jaw, so that the width of the discharge port will be reduced; On the contrary, when the rear inclined iron descends, the discharge port will be widened. This adjustment mode does not require shutdown.

3. The distance between the two jaw plates can also be changed by the hydraulic device. Meanwhile, when there are non breakable objects entering the crushing chamber, they can also be discharged by the hydraulic device.

4. Use electronic control to adjust the width of discharge opening

The movement trajectory of the jaw plate can be made more accurate through electronic control, and the control of the size of the discharge port will be more and more accurate; At the same time, the distance between the two jaw plates can also be changed through the hydraulic control of the balance torsion bar, which avoids the possibility of repeated crushing, and the production efficiency is faster.

The above is the way to adjust the finished product thickness of the jaw crusher. The structural design of the jaw crusher is relatively simple, so it is very convenient to operate. Among them, the large jaw crusher can use hydraulic adjustment to control the discharge thickness, and the small jaw crusher can choose to adjust the gasket or inclined iron to control the finished product thickness. Reasonable control of discharge particle size can avoid repeated operation of production line and improve production efficiency.