When buying jaw crushers, many customers will first consider whether the price of jaw crushers is acceptable. In fact, this is also the side we need to consider when buying any kind of goods. However, among the many factors that determine the price of the jaw crusher, I think its structural components and capacity largely determine the final price of the jaw crusher.
We know that the general jaw crusher structure is mainly composed of: frame, eccentric shaft, flywheel, elbow plate, fixed jaw plate, movable jaw plate, upper and lower guard plates, adjusting seat, movable jaw pull rod spring, etc, the elbow plate plays a role of insurance. Below we will analyze the jaw crusher in detail from the main structural components.
1. Frame: the frame is a four wall rigid frame with upper and lower openings. It is used to support the eccentric shaft and bear the reaction force of broken materials. It is required to have sufficient strength and rigidity. Generally, cast steel is used as a whole, Cast iron can also be used to replace cast steel for small machines. The frame of the large-scale machine needs to be cast in sections, and then firmly connected into a whole with bolts, The casting process is complex. The frame of self-made small jaw crusher can also be welded with thick steel plates, but the rigidity is poor.
2. Jaw plate and side guard plate: when the movable jaw plate moves back and forth periodically to the fixed jaw plate, it sometimes approaches and sometimes leaves. When the movable jaw plate approaches the fixed jaw plate, the ore between the two jaw plates is crushed by the combined action of extrusion, splitting and bending and breaking. Both the fixed jaw and the movable jaw are composed of a jaw bed and a jaw plate. The jaw plate is the working part and is fixed on the jaw bed with bolts and wedges. The jaw bed of the fixed jaw is the front wall of the frame, and the jaw bed of the movable jaw is suspended on the periphery. It must have sufficient strength and rigidity to withstand the crushing reaction force, so it is mostly cast steel or cast iron.
3. Eccentric shaft of transmission part: the eccentric shaft is the main shaft of the crusher and bears great bending and torsion, It is made of high carbon steel. The eccentric part shall be subject to finish machining, heat treatment and Babbitt alloy casting for bearing lining. One end of the eccentric shaft is equipped with a pulley, and the other end is equipped with a flywheel.
At present, the medium particle size crushing of various ores and large materials needs to be completed by jaw crusher. Jaw crusher is widely used in the crushing equipment of mining machinery. The equipment performance of the jaw crusher of SMMVIK Machinery is more stable, the pressure resistance performance is high, and the setting of the equipment at the discharge port has certain advantages. The two jaw crushers with good reputation in the market are PEW European jaw crushers, The production capacity range is 12-650t / h, and the finished product output of PE jaw crusher is 5-1000t / h. both have received good feedback from customers. The jaw crushers of these two types are moderate in price and can be listed as the priority.
