Jaw Crusher Working Principle Decides Its Structure

Jaw crusher working principle decides its structure

The jaw crusher is mainly used for coarse and fine crushing operation of various materials whose compressive strength of not more than 320 MPa; it has advantages of great crushing ratio, high yield, uniform particle size, simple structure, reliable work, easy maintenance and low running costs economic; jaw crusher drive and structure play an important role in the work running.

Jaw crusher movable jaw movement is achieved with the eccentric rod and thrust plate; it is composed by the flywheel, eccentric shaft, connecting rod, thrust plate and the thrust plates. The two flywheels are mounted at both ends of the eccentric shaft. The eccentric shaft supports the bearing on the frame sidewalls.

Jaw crusher is working intermittently; the uneven motor loads are waste of power, and also have an impact on the life of the machine. The make load even, we should store the moving jaw backward idling stroke energy, and then release the energy in the crushing of the working stroke of the ore, so by the principle of inertia, two flywheel mounted in the eccentric shaft at both ends. The heavier of flywheel, the greater of the inertia, the more stored energy, so the flywheel is heavy. In order to simplify the structure of the machine, a flywheel at one end also serves as a pulley typically. The eccentric shaft is an important part of the crusher, it drives rod do up and down movement.

Jaw crusher is under a lot of breaking force, so it is generally made of high quality alloy steel. Rod bear tension in work, so it is with cast steel, in order to reduce the quality of the connecting rod, the lower part of the cross-section of the rod is often made into box-shaped.

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by: nicole

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