Only understand the structure of jaw crusher, can we use and maintenance the jaw crusher better. The jaw crusher has a feature of big crushing ratio, such as uniform finished product size, simple structure, big reduction ratio, reliable operation, easy maintenance, low operation cost. The highest anti-pressure strength of crushed material is 320MPa. It is widely used in mining, metallurgy, construction, highway, railroad, and chemistry industries and etc. Many models are available according to your different fineness requirements.Sand making production line is best choice for construction sand demand
The structure of jaw crusher
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 casting process is complex. The frame of homemade small jaw crusher can also weld with the thick plate but the stiffness is poorer.
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.
Notice of operating jaw crusher
1. jaw crusher is installed by the factory, the user should be checked after the receipt of the jaw crusher machine and eliminate the various problems arising from transport, and then install it.
2. rack installation, the vertical plane at the end of the level of tolerance of 0.5mm / m, the horizontal level degrees (measured on the spindle) Tolerance of 0.15 mm / m.
3. comprehensive inspection before starting the jaw crusher machine. The fastening of the fixed parts, each part of the lubrication as well as V-belt tension level is to check the suitability of the like should be the focus.
4. Check the overall circuit after cutting off jaw crusher switch, and a clear sign hanging switch.
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