An Introduction to Jaw Crusher

Posted by birder2525 on November 14th, 2019

The jaw crusher has the characteristics of large crushing ratio, uniform product size, simple structure, reliable operation, simple maintenance and economical operation cost.

The jaw crusher is widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries, etc. It breaks various materials with compressive strength not exceeding 320 MPa.

The jaw crusher is mainly composed of frame, supporting device, working mechanism (fixed and moving jaw plate), transmission mechanism (eccentric connecting rod, thrust plate, flywheel, eccentric shaft), safety device, adjustment device of drainage outlet (wedge adjustment device, gasket adjustment device) and so on. 

The jaw crusher has many structural forms, and its working principle is the same, that is, crushing material through periodic movement of moving E-crusher. In the process of fixing the pendulum axially around the suspension center, the materials located between the two plates are crushed, split and bent. At the beginning, the pressure is small, which reduces the volume of the material and makes the materials close to each other and squeeze each other. When the pressure rises above the strength that the material can bear, it will break up. On the contrary, when the moving hull swings in the opposite direction from the fixed hull, the material moves downward by weight. Every periodic movement of the moving hull causes the material to be crushed once and to be discharged for a distance downward. After several cycles, the crushed material is discharged from the discharge outlet.