Hard Rock Crushing Jaw Crusher Concrete Quarry Jaw Crusher Machine

Hard Rock Crushing Jaw Crusher Concrete Quarry Jaw Crusher Machine

Introduction:
TONTEN Machinery jaw crusher crushes materials through periodic squeezing between the movable and fixed jaws. It is the most basic and core coarse crushing equipment in an ore crushing production line. The entire jaw crusher's basic structure is typically constructed of high-quality welded steel plates or cast steel, requiring extremely high strength and rigidity to withstand significant impact loads. The eccentric shaft is supported by large spherical roller bearings. The eccentric portion drives the movable jaw, converting the motor's rotational motion into squeezing motion. The connecting rod serves as both a force transmission component and an overload protection device. When uncrushable material (such as iron blocks) enters the crushing chamber, the connecting rod breaks or snaps first, protecting other core components of the main unit from damage. An adjustment device is used to adjust the size of the discharge opening, thereby controlling the final product particle size. A flywheel is mounted at each end of the eccentric shaft. It stores energy during the idle stroke and releases it during the working stroke (squeezing material), thereby reducing motor load and ensuring smoother machine operation.

Working Principle:
The process can be summarized as a cyclical "feed-extrusion-discharge" cycle:

Feeding and Clamping: Material falls from the feed opening at the top of the crusher into the crushing chamber. Driven by the eccentric shaft and connecting rod, the movable jaw plate moves toward the fixed jaw plate, clamping the material between the two jaw plates.

Extrusion and Crushing: The movable jaw plate continues to move forward and upward, exerting tremendous pressure on the material. When the pressure exceeds the material's compressive strength, the material is squeezed, split, and crushed.

Discharge: As the movable jaw plate retreats, the crushed material moves downward due to gravity. Material smaller than the current discharge opening size is discharged from the bottom, while larger material remains in the crushing chamber, awaiting re-extrusion during the next cycle.

Reciprocating Cycle: The eccentric shaft continuously rotates, driving the movable jaw plate in reciprocating motion hundreds of times per minute. This process repeats itself, achieving continuous feeding, crushing, and discharge.

Jaw crusher machine specification: