The jaw crusher is the "vanguard" of the crushing production line, whether it is the aggregate production line or the mechanical sand production line, it has its figure. With the increase of equipment running time, the tooth plate broken jaw is also constantly wearing, at this time the size of the discharge port will continue to grow, in order to ensure production capacity and meet the requirements of product particle size, we need to adjust the size of the discharge port regularly.
Generally, there are two ways to adjust the discharge port of the jaw crusher: gasket adjustment and wedge adjustment. Gasket adjustment is mostly used in the traditional way, f at the same time need to shut down operation, today we focus on introducing a more convenient wedge adjustment.
01, what is wedge adjustment?
The wedge adjusting device is mainly composed of two identical wedges. When the wedge is located behind the plate seat in the adjusting seat, the inclined plane of the wedge is relatively fitted together. By changing the relative position of the two modules, the total thickness of the two wedges is changed, so that the position of the front and back of the time plate is changed, and the position of the lower end of the movable jaw is moved to realize the change of the size of the discharge port. According to the different equipment configuration, we can use mechanical adjustment and hydraulic adjustment in two ways
02, you can choose mechanical adjustment
The mechanical adjustment method is that the movement of the wedge block is achieved by manually rotating the adjustment rod, and the spring is manually adjusted to the correct length. When the jaw is broken, the pull rod plays a regulating role. When it is necessary to adjust the size of the discharge port, loosen the tie rod, lift the jaw with the crane, and then turn the adjustment bolt to drive the wedge to move right and left, and push the adjustment seat forward (backward). After the adjustment is complete, tighten the tie rod and lower the moving head.
Jaw crusher different types of equipment spring length is different, mechanical adjustment, please refer to the equipment "operation manual" to adjust the spring to the correct length, otherwise it will cause the following trouble
The size is smaller than the indicated size
May cause the spring spiral impact, causing damage to the tie rod, break the spring, and even damage the rear frame
The size is greater than the indicated size
It may cause the collision between the time plate and the time seat, resulting in abnormal noise or even damage to the tie rod.
03, you can also choose hydraulic adjustment
In addition to mechanical adjustment, the current hydraulic adjustment of the discharge port is more widely used. SJC series jaw crusher except SJC108 has all the standard hydraulic adjustment. The way of hydraulic adjustment is to use the hydraulic station to output pressure, so that the hydraulic cylinder pushes the adjustment wedge to move around, and the adjustment seat moves forward (backward) to achieve the effect of reducing or increasing the discharge port
Hydraulic control discharge port has the following advantages:
Convenient and fast. Hydraulic adjustment does not need to stop the main engine, lift the jaw, adjust the screw, disassemble, install the tension spring and other complicated processes.
Automation. The hydraulic adjustment adopts the automatic adjustment of the discharge port, without manual adjustment, reducing the work intensity
Intelligent. Hydraulic adjustment is more intelligent and convenient than mechanical adjustment, and the discharge port can be adjusted when the main engine is running normally.
Save time and effort. The mechanical adjustment process generally takes 2 to 3 hours to complete, and the hydraulic adjustment can complete the work in a few minutes, which greatly improves the efficiency of the site host.
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