What Is A Jaw Crusher？
The Jaw Crusher is the core primary crushing equipment in mines, quarries and construction sites around the world, processing various materials such as granite and recycled concrete into manageable aggregate. So how does it transform boulders into usable crushed stone?
This article will explain its operating mechanism and present the whole process of material from entry to discharge.
Jaw Crushers Components That Work Together:
Fixed Jaw: The fixed jaw is a non-movable surface retained by the frame of a machine.
Moving Jaw: The moving jaw is attached to an eccentric shaft that swings in an elliptical motion.
Eccentric Shaft: The rotating motor takes the eccentric shaft and turns it into the force that creates the movable jaw crushing materials.
Toggle Plate: The toggle plate connects the moving jaw to the frame of a machine, guides the arc of the moving jaw, transmits crushing force, and also keeps the machinery running.
Flywheel: When crushing, the flywheel stores energy so that after crushing, there is enough mass to continue to perform the crushing cycle in a high inertia crushing arrangement.
Crushing Cycle: Steps
Feeding: The raw material enters the top of the V-shaped crushing chamber.
Crushing: The movable jaw pushes against the fixed jaw, clamping the material. The strong pressure breaks the rock through compression and inter-particle crushing (rocks crush other rocks). The optimal bite angle ensures effective grip.
Releasing: The movable jaw retreats, allowing the crushed material to fall.
Discharging: Particles smaller than the discharge opening (adjusted by the closed edge setting) are discharged from the bottom. The cycle is repeated for larger particles.
Why Jaw Crushers Dominate Primary Crushing?
Simplicity & Durability: Minimal moving parts mean lower maintenance.
Hard Rock Mastery: Excels at crushing abrasive granite, basalt, and ore.
Cost Efficiency: Low operational expenses per ton processed.
Versatility: Handles diverse materials – from quarry rock to demolition debris.
In Conclusion:
All in all, the Jaw Crusher is an engineering masterpiece that has stood the test of time. The Jaw Crusher is a precision crushing device that transforms brute force into a timeless mechanical dance.
Due to its simple yet rugged compression mechanism, it remains the most effective addition to the primary crushing process – just a slightly different way of “making roads”, one piece at a time.
