Performance and Working principle of Jaw Stone Crusher

The jaw stone crusher is one of the most important crushing machinery and widely used in coarse crushing and secondary crushing operations. Mainly used for crushing stress of less than 200MPa of brittle materials. According to moving jaw movement characteristics, jaw crusher is usually mainly classified simple swing, complex swing, swing-type combination of three.

A simple swing jaw crusher works intermittently. Simple pendulum jaw crusher reciprocating motion, by the eccentric shaft rotation, driven by the transmission link mechanism. So Dion eccentric shaft rotation week, movable jaw can only move forward and back one time, so only half of the time does work.

Simple swing jaw crusher because movable jaw hang on the support shaft, so when the movable jaw for reciprocating motion, on the point of the movable jaw trajectory is circular arc, and the horizontal stroke is big end down, and movable jaw bottom is the largest. As the ore fall into the crusher, the upper part of the ore are large, so often do not meet the requirement amount of crushing compression, so the upper part of the large ore to be repeated crushing several times to be broken. Broken meet most are concentrated in the lower part of the crushing chamber, the jaw plate does not work evenly, thereby reducing the crusher production capacity. At the same time, the vertical stroke of the crusher is small, the role of grinding peeling is little, slow discharge of ore. But the jaw plate wear is light, less product crushing.

Simple swing jaw crusher in the crushing of ore, the broken ore reaction mainly is in the moving jaw suspension axis, and thus the main force of the crushing machine parts are more force, so it is generally made of large and medium-sized.

Simple swing jaw crusher has simple structure, easy to care and maintenance, protection and reliable. A simple swing jaw crusher is better to break the hard ore.

Jaw crusher is mainly consist of frame, eccentric shaft, pulley, side guard plate, bracket, discharging gate adjusting device, fixed jaw plate, movable jaw plate, safety device and etc.