Jaw crusher, the following is an introduction to it:

Working principle

The motor drives the eccentric shaft to rotate through the pulley, so that the movable jaw periodically approaches and leaves the fixed jaw. When the movable jaw approaches the fixed jaw, the material is crushed by squeezing, rubbing, grinding, etc.; when the movable jaw leaves the fixed jaw, the crushed material is discharged from the discharge port under the action of gravity.

Structural composition

Frame: It is divided into a combined frame and an integral frame. The combined frame is easy to transport, install and repair, and is often used in large crushers; the integral frame has good rigidity and is mostly used in small and medium-sized crushers.

Feed hopper: Located at the top of the machine, it is used to receive the material to be crushed.

Moving jaw assembly: It consists of a movable jaw body, an eccentric shaft, a transparent cover, a retaining ring, a bearing, a pulley, a flywheel, etc., and is a key component of the crusher.

Adjustment mechanism: It is used to control the size of the discharge port and balance the crushing effect and production efficiency.

Power mechanism: It is usually composed of a motor, a pulley, and a V-belt, which converts electrical energy into mechanical energy to drive the moving parts of the crusher.

Classification

Simple swing jaw crusher: The movable jaw body is independent of the eccentric wheel, and the thrust toggle plate transmits the force. The top of the movable jaw body is fixed in the suspension shaft and swings. It is suitable for large and hard materials.

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Industrial equipment Simple swing jaw crusher

Compound swing jaw crusher: light weight, few components, compact structure, uniform crushing of materials in the crushing chamber, high productivity, and good product quality.

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Industrial equipment Compound swing jaw crusher

Comprehensive swing jaw crusher: combines the characteristics of simple swing and compound swing jaw crushers, and has superior performance.

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Industrial equipment Comprehensive swing jaw crusher

Application field

Mining industry: used for coarse and medium crushing of ores, such as mining and processing of iron ore, copper ore, gold ore, etc.

Building materials industry: can crush limestone, dolomite, granite, etc., and produce raw materials such as sand and gravel for construction.

Road and railway construction: crush large stones into suitable particle sizes for laying road base and railway ballast.

Chemical industry: crushing chemical raw materials to meet production process requirements, such as crushing of coal, salt, etc.

Advantages and Disadvantages

Advantages: large crushing ratio, uniform product particle size; simple structure, reliable operation, easy maintenance, low operating cost; can handle large particle size materials and effectively reduce dust generation.

Disadvantages: single crushing process, prone to over-crushing; high energy consumption, low energy saving and consumption reduction performance; single machine function is single, it is difficult to achieve ultra-fine crushing, and it occupies a large space.