The Structure and Characteristics of Jaw Crusher

Jaw crusher is commonly known as jaw crusher, also known as tiger mouth. The crushing chamber is composed of two jaw plates, a movable jaw and a static jaw, which simulates the movement of the animal's jaws to complete the material crushing operation. It is widely used in the crushing of various ores and bulk materials in mining and smelting, building materials, highways, railways, water conservancy and chemical industries. The highest compressive strength of the crushed material is 320Mpa.

Jaw crushers are mainly used as coarse crushers and medium crushers in mining, building materials, infrastructure and other sectors. According to the width of the feed port, it is divided into three types: large, medium and small. The width of the feed port is greater than 600MM for large machines, the width of the feed port is 300-600MM for medium-sized machines, and the width of the feed port is less than 300MM for small machine. The jaw crusher has simple structure, easy manufacture and reliable operation.

The working part of the jaw crusher is two jaws. One is a fixed jaw (fixed jaw), which is vertically (or slightly inclined at the upper end) fixed on the front wall of the machine body, and the other is a movable jaw (moving jaw). Inclined to form a crushing cavity (working cavity) with a large upper and a lower jaw with the fixed jaw. The movable jaw plate cyclically reciprocates against the fixed jaw plate, sometimes separating and sometimes approaching. When separated, the material enters the crushing cavity, and the finished product is discharged from the lower part; when it is close, the material installed between the two jaws is crushed by squeezing, bending and splitting.

Jaw crushers can be divided into simple swing jaw crushers (simple pendulum jaw crushers) according to the different swing modes of the movable jaw. There are three types of complex swing jaw crusher (compound swing jaw crusher) and comprehensive swing jaw crusher.

As far as jaw crushers are concerned, although the structure types are different, their working principles are basically similar, except that the movement trajectory of the moving jaw is different. In a nutshell, when the movable jaws cyclically reciprocate the fixed jaws around the suspension axis, sometimes approaching and sometimes leaving, when the movable jaws approach the fixed jaws, the ore between the two jaws, Crushed by the combined action of crushing, splitting and bending; when the movable jaw leaves the fixed jaw, the crushed ore is discharged through the discharge port of the crusher under the action of gravity.

Jaw crusher has the following characteristics:

1. Low noise and less dust.

2. The crushing ratio is large and the product size is uniform.

3. Simple structure, reliable work and low operating cost.

4. The lubrication system is safe and reliable, the replacement of parts is convenient, and the equipment maintenance is simple.

5. The crushing cavity is deep and there is no dead zone, which improves the feeding capacity and output.

6. Equipment energy saving: single machine energy saving 15%-30%, system energy saving more than doubled.

7. The adjustment range of the discharge opening is large, which can meet the requirements of different users.

Henan Zhengzhou Mining Machinery CO. Ltd has been committed to the research of crushing technology for many years, has accumulated a lot of experience in jaw crushing equipment, has mature production concepts, and a professional technical research and development team, which can create high-quality jaw crushers for you. People from all walks of life are welcome to visit our factory!