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Jaw Crusher appeared in 1858. Although it is an old crushing equipment, but because of simple structure, reliable operation, manufacturing is easy, convenient maintenance, it is still mining metallurgy, building materials, chemicals and railway departments have been widely used. In metal mining, it mostly used for hard or medium hard ore crushing and the broken. Jaw crusher is usually in accordance with the movable jaw plate (moving jaw) to classify the movement characteristics, the industry's most widely used are two main types:
1) moving jaw plate to make a simple swing of the elbow body (the so-called simple pendulum) the jaw crusher;
2) E as a complex dynamic swing of the single toggle plate body (the so-called re-tilting) of the jaw crusher. In recent years, crushing equipment, hydraulic technology has been applied on the emergence of the hydraulic jaw crusher
(A) - Simple pendulum jaw crusher; (b) - compound pendulum jaw crusher; (c) - Hydraulic Jaw Crusher
1 - fixed amount of plate; 2 - fixed jaw suspension axis; 3 - movable jaw; 4 - before (after) the thrust plate; 5 - eccentric shaft;
6 - connecting rod; 7 - rod hydraulic cylinder; 8 - to adjust the hydraulic cylinder
The movement of the movable jaw is through connecting rod, thrust plate bodies to achieve. It is a flywheel 7, the eccentric shaft 8, the connecting rod 9, the first thrust plate and thrust plate 13 after the composition. Flywheel were installed at both ends of the eccentric shaft, eccentric shaft supported on the rack in the wall of the main bearings, connecting rod eccentric shaft mounted on the upper part, before and after the end of the thrust plate supported on the rod, respectively, the lower part of both sides of the bracket bearing 14, on the other end before the thrust plate supported on the fixed jaw plate bearing the lower part of the elbow during and after the thrust plate supported on the other side of the rack plate bearing on the posterior wall of the elbow. When the motor pulley driven by the eccentric shaft rotates, the connecting rod in motion. Rod up and down movement, led thrust plate movement. Since the movement of thrust plate changing the results of angle, so the movable jaw to hang around the shaft for reciprocating movement, thereby crushing ore. When the moving jaw forward swing, the horizontal rod through the spring 10 to balance the thrust plate fixed jaw and the inertial force generated, so moving jaw and thrust plate closely to warrant separation. Back when the moving jaw, the spring can also assist in the role play.