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Analysis of Main Parts of Hongxing Jaw Crusher

1 March, 2013 at 7:19 am in Education

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In the field of mining machinery and sand machinery, owe to the different properties of sand materials, different requirements of customers and different performances of crushers, it needs more attention to the choice of suitable crushers. In the numerous crushing and screening equipments, jaw crusher has the widest application so as to become the focus of aggregate production line.

Jaw crusher is the most universal international crusher with the advantages of Great crushing ratio, even granularity, simple structure, convenient maintenance, widely used in mining, industry, building material, highway, railway, and chemical industry; Generally speaking, The basic structure of a jaw crusher includes seven parts such as driving medium,rack,the jaw plate and side rack ,flywheel,lubrication device,adjusting device and the reset spring.and now we will talk about each part in details.

1. The transmission

Eccentric shaft is the spindle of the crusher,which is bearing huge torsion and made by the high-carbon steel. Eccentric shaft must be processed by finishing, heat treatment and the bearing should pouring by the use of the babbitt metal. There is a pulley at one side of the eccentric shaft ,and the other side with the flywheel.


The frame is a rigid frame with upper and lower opening. It is the support of the eccentric shaft and bears the reaction of broken material. And it requests enough strength and stiffness, generally wholly casting with the cast steel. Mini-machines can also cast with the high quality cast iron instead of cast steel. The frame of the mainframe need to cast segmentedly and then link into a firm whole with screws. The casting process is complex. The frame of homemade small jaw crusher can also weld with the thick plate but the stiffness is poorer. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like cement mill price, Henan Hongxing is always doing the best in products and service.crushers: http://www.crusher-machine.com/n215.html

3. Jaw plate and side guard board

Dynamic jaw and static jaw are all made up of jaw bed and jaw plate, jaw plate is the working part and fixed to the jaw bed with bolts and wedge iron. The jaw bed of dynamic jaw is the front wall of the frame,and the jaw bed of the static jaw hangs round periphery,which must have enough strength and stiffness to sustain the crushing force, and is mostly cast with steel or iron castings. Jaw board and side guard board contact directly with the raw material of the parts, the hardness and wear-resisting degree of which is relatively good.

4. The flywheel

The flywheel of jaw crusher is for store the banking energy of dynamic jaw to reuse in the formation of industrial and make the machinery work uniformly. The pulley plays the role of the flywheel. The flywheel usually cast with cast iron or cast steel, the flywheel of mini-machines generally made into a whole. We should pay attention to the static balance when installing the flywheel.

The shape of crushing cavity for common jaw crusher is usually determined by the shape of truss plate and the nip angle which influences directly the performance diameters of production efficiency, product quality and unit power consumption. As for the mining ore with high hardness such as iron ore, slag, cobblestone and cobble, or for the ore with relatively low hardness such as granite, limestone, basalt and calcium, Hongxing new jaw crusher machine can handle all of these with ease. Therefore, jaw crusher becomes the necessity in the aggregate crushing production line for coarse crushing.

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